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Android Studio: No view found for id (WebView fragment project) [duplicate]

Just wanted to share an issue that I have with a project that I am doing for a client.
Whenever I enter to my IntroActivity and press the button to take me to MenuActivity, it crashes.
Here is the error log:
02-16 18:49:49.393 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ No view found for id 0x7f090047 (com.wlodsgn.bunbunup:id/linear) for fragment FmMenu{b1e537f0 #0 id=0x7f090047}
02-16 18:49:49.393 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ Activity state:
02-16 18:49:49.423 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ Local FragmentActivity b1e1d1b8 State:
02-16 18:49:49.423 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ mCreated=falsemResumed=false mStopped=false mReallyStopped=false
02-16 18:49:49.423 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ mLoadersStarted=false
02-16 18:49:49.443 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ FragmentManager misc state:
02-16 18:49:49.443 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ mActivity=com.wlodsgn.bunbunup.MenuActivity#b1e1d1b8
02-16 18:49:49.443 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ mContainer=android.support.v4.app.FragmentActivity$2#b1e1ed08
02-16 18:49:49.453 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ mCurState=1 mStateSaved=false mDestroyed=false
02-16 18:49:49.453 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ View Hierarchy:
02-16 18:49:49.453 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ com.android.internal.policy.impl.PhoneWindow$DecorView{b1e23d08 V.E..... ... 0,0-0,0}
02-16 18:49:49.473 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.widget.LinearLayout{b1e24280 V.E..... ... 0,0-0,0}
02-16 18:49:49.473 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.view.ViewStub{b1e24da8 G.E..... ... 0,0-0,0 #102030e}
02-16 18:49:49.473 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.widget.FrameLayout{b1e25038 V.E..... ... 0,0-0,0}
02-16 18:49:49.473 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.support.v7.internal.widget.ActionBarOverlayLayout{b1e2db28 V.E..... ... 0,0-0,0 #7f09002f app:id/decor_content_parent}
02-16 18:49:49.483 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.support.v7.internal.widget.NativeActionModeAwareLayout{b1e2f758 V.E..... ... 0,0-0,0 #1020002 android:id/content}
02-16 18:49:49.483 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ [ 02-16 18:49:49.513 1208: 1208 E/FragmentManager ]
android.support.v4.widget.DrawerLayout{b1e2c058 VFE..... ... 0,0-0,0 #7f090042 app:id/drawer_layout}
02-16 18:49:49.513 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.widget.LinearLayout{b1e1fa90 V.E..... ... 0,0-0,0}
02-16 18:49:49.523 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.support.v4.view.ViewPager{b1e29568 VFED.... ... 0,0-0,0 #7f090043 app:id/pager}
02-16 18:49:49.523 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.widget.ListView{b1e44148 VFED.VC. ... 0,0-0,0 #7f090044 app:id/listView1}
02-16 18:49:49.523 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.widget.ListView{b1dd80b8 VFED.VC. ... 0,0-0,0 #7f090045 app:id/list_slidermenu}
02-16 18:49:49.523 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.support.v7.internal.widget.ActionBarContainer{b1e2fcd0 V.ED.... ... 0,0-0,0 #7f090030 app:id/action_bar_container}
02-16 18:49:49.533 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.support.v7.widget.Toolbar{b1e30898 V.E..... ... 0,0-0,0 #7f090031 app:id/action_bar}
02-16 18:49:49.533 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.widget.ImageButton{b1e39da8 VFED..C. ... 0,0-0,0}
02-16 18:49:49.533 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.widget.TextView{b1e28a60 V.ED.... ... 0,0-0,0}
02-16 18:49:49.533 1208-1208/com.wlodsgn.bunbunup E/FragmentManager﹕ android.support.v7.internal.widget.ActionBarContextView{b1e43a50 G.E..... ... 0,0-0,0 #7f090032 app:id/action_context_bar}
02-16 18:49:49.543 1208-1208/com.wlodsgn.bunbunup D/AndroidRuntime﹕ Shutting down VM
02-16 18:49:49.543 1208-1208/com.wlodsgn.bunbunup W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xb1a87ba8)
02-16 18:49:49.573 1208-1208/com.wlodsgn.bunbunup E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.wlodsgn.bunbunup, PID: 1208
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.wlodsgn.bunbunup/com.wlodsgn.bunbunup.MenuActivity}: java.lang.IllegalArgumentException: No view found for id 0x7f090047 (com.wlodsgn.bunbunup:id/linear) for fragment FmMenu{b1e537f0 #0 id=0x7f090047}
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalArgumentException: No view found for id 0x7f090047 (com.wlodsgn.bunbunup:id/linear) for fragment FmMenu{b1e537f0 #0 id=0x7f090047}
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:882)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1062)
at android.app.BackStackRecord.run(BackStackRecord.java:684)
at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1447)
at android.app.Activity.performStart(Activity.java:5240)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2168)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
            at android.app.ActivityThread.access$800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
            at dalvik.system.NativeStart.main(Native Method)
Here is my MenuActivity.java where the error is located (Nearly at the end starts with if (fragment != null) { :
import java.util.ArrayList;
import java.util.List;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.MenuItemCompat;
import android.support.v4.view.MenuItemCompat.OnActionExpandListener;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.SearchView;
import android.support.v7.widget.SearchView.OnQueryTextListener;
import android.view.LayoutInflater;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
/**
* Created by WiLo on 2/13/2015.
*/
public class MenuActivity extends ActionBarActivity implements OnQueryTextListener, OnActionExpandListener{
/*private TextView texto;*/
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
// nav drawer title
private CharSequence mDrawerTitle;
// used to store app title
private CharSequence mTitle;
// slide menu items
private String[] navMenuTitles;
private TypedArray navMenuIcons;
private ArrayList<NavDrawerItem> navDrawerItems;
private NavDrawerListAdapter adapter;
String[] categoria = {
"Jeans"
};
int[] imagenes = {
R.drawable.veroxjeans1,
R.drawable.veroxjeans2,
R.drawable.veroxjeans3,
R.drawable.veroxjeans4,
R.drawable.veroxjeans5,
R.drawable.veroxjeans6,
R.drawable.veroxjeans7
};
SectionsPagerAdapter mSectionsPagerAdapter;
ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_menu);
/*texto = (TextView) findViewById(R.id.texto);*/
mTitle = mDrawerTitle = getTitle();
// load slide menu items
navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);
// nav drawer icons from resources
navMenuIcons = getResources()
.obtainTypedArray(R.array.nav_drawer_icons);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.list_slidermenu);
navDrawerItems = new ArrayList<NavDrawerItem>();
// agregar un nuevo item al menu deslizante
// Menu
navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
// Contacto
navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
// Catologo
//navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1), true, "Estrenos"));
// old Contacto (Pedidos)
//navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1)));
// Recycle the typed array
navMenuIcons.recycle();
mDrawerList.setOnItemClickListener(new SlideMenuClickListener());
// setting the nav drawer list adapter
adapter = new NavDrawerListAdapter(getApplicationContext(),
navDrawerItems);
mDrawerList.setAdapter(adapter);
// enabling action bar app icon and behaving it as toggle button
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, //nav menu toggle icon
R.string.app_name, // nav drawer open - description for accessibility
R.string.app_name // nav drawer close - description for accessibility
) {
public void onDrawerClosed(View view) {
getSupportActionBar().setTitle(mTitle);
// calling onPrepareOptionsMenu() to show action bar icons
invalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView) {
getSupportActionBar().setTitle(mDrawerTitle);
// calling onPrepareOptionsMenu() to hide action bar icons
invalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
// on first time display view for first nav item
displayView(0);
}
//lista
ListView lista = (ListView) findViewById(R.id.listView1);
ArrayAdapter adapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, categoria );
lista.setAdapter(adapter);
//galeria de imagenes
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.pager);
mSectionsPagerAdapter.addfragments(PlaceholderFragment.newInstance(imagenes[0]));
mSectionsPagerAdapter.addfragments(PlaceholderFragment.newInstance(imagenes[1]));
mSectionsPagerAdapter.addfragments(PlaceholderFragment.newInstance(imagenes[2]));
mSectionsPagerAdapter.addfragments(PlaceholderFragment.newInstance(imagenes[3]));
mSectionsPagerAdapter.addfragments(PlaceholderFragment.newInstance(imagenes[4]));
mSectionsPagerAdapter.addfragments(PlaceholderFragment.newInstance(imagenes[5]));
mSectionsPagerAdapter.addfragments(PlaceholderFragment.newInstance(imagenes[6]));
mViewPager.setAdapter(mSectionsPagerAdapter);
}
#Override
public boolean onMenuItemActionExpand(MenuItem menuItem) {
Toast.makeText(getApplicationContext(), "Abriendo Busqueda", Toast.LENGTH_SHORT).show();
return true;
}
#Override
public boolean onMenuItemActionCollapse(MenuItem menuItem) {
Toast.makeText(getApplicationContext(), "Cerrando Busqueda", Toast.LENGTH_SHORT).show();
return true;
}
#Override
public boolean onQueryTextSubmit(String s) {
/*texto.setText("Buscando...\n\n" + s);*/
return false;
}
#Override
public boolean onQueryTextChange(String s) {
/*texto.setText(" \n\n" + s);*/
return false;
}
/**
* Slide menu item click listener
* */
private class SlideMenuClickListener implements
ListView.OnItemClickListener {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// display view for selected nav drawer item
displayView(position);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu, menu);
MenuItem searchItem = menu.findItem(R.id.menu3_buscar);
SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
searchView.setOnQueryTextListener(this);
MenuItemCompat.setOnActionExpandListener(searchItem, this);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Pass the event to ActionBarDrawerToggle, if it returns
// true, then it has handled the app icon touch event
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle your other action bar items...
return super.onOptionsItemSelected(item);
}
/**
* Diplaying fragment view for selected nav drawer list item
* */
private void displayView(int position) {
// update the main content by replacing fragments
Fragment fragment = null;
switch (position) {
case 0:
fragment = new FmMenu();
break;
case 1:
fragment = new FmContacto();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.linear, fragment).commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
// error in creating fragment
Log.e("BunBunUp", "MenuActivity - Error cuando se creo el fragment");
}
}
#Override
public void setTitle(CharSequence title) {
mTitle = title;
getSupportActionBar().setTitle(mTitle);
}
/**
* When using the ActionBarDrawerToggle, you must call it during
* onPostCreate() and onConfigurationChanged()...
*/
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the drawer toggle
mDrawerToggle.onConfigurationChanged(newConfig);
}
public class SectionsPagerAdapter extends FragmentPagerAdapter {
List<android.support.v4.app.Fragment> fragmentos;
public SectionsPagerAdapter(android.support.v4.app.FragmentManager fm) {
super(fm);
fragmentos = new ArrayList<android.support.v4.app.Fragment>();
}
public void addfragments(android.support.v4.app.Fragment xfragment){
fragmentos.add(xfragment);
}
#Override
public android.support.v4.app.Fragment getItem(int position) {
return fragmentos.get(position);
}
#Override
public int getCount() {
return fragmentos.size();
}
}
public static class PlaceholderFragment extends android.support.v4.app.Fragment {
private static final String ARG_IMAGE = "imagen";
private int imagen;
public static PlaceholderFragment newInstance(int imagen) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_IMAGE, imagen);
fragment.setArguments(args);
fragment.setRetainInstance(true);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if(getArguments() != null) {
imagen = getArguments().getInt(ARG_IMAGE);
}
}
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_menu, container, false);
ImageView imagenView = (ImageView) rootView.findViewById(R.id.imageView1);
imagenView.setImageResource(imagen);
return rootView;
}
}
}
Here are the rest (If needed) of the files that are linked to MenuActivity :
FmMenu.java
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* Created by WiLo on 2/13/2015.
*/
public class FmMenu extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.lay_menufragment, container, false);
return rootView;
}
}
activity_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ff0a393d">
<!-- Linearlayout to display Fragments -->
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="265dp"
tools:context=".MenuActivity" />
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/listView1"
android:layout_gravity="center_horizontal" />
</LinearLayout>
<!-- Listview to display slider menu -->
<ListView
android:id="#+id/list_slidermenu"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:divider="#color/list_divider"
android:dividerHeight="1dp"
android:listSelector="#drawable/list_selector"
android:background="#color/list_background"/>
</android.support.v4.widget.DrawerLayout>
fragment_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MenuActivity$PlaceholderFragment"
android:id="#+id/linear">
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/imageView1"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>
lay_menufragment.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
</LinearLayout>
New error log:
02-17 09:41:20.480 917-917/com.wlodsgn.bunbunup W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xb1ad9ba8)
02-17 09:41:20.560 917-917/com.wlodsgn.bunbunup E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.wlodsgn.bunbunup, PID: 917
java.lang.OutOfMemoryError
at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:587)
at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:422)
at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:840)
at android.content.res.Resources.loadDrawable(Resources.java:2110)
at android.content.res.Resources.getDrawable(Resources.java:700)
at android.widget.ImageView.resolveUri(ImageView.java:638)
at android.widget.ImageView.setImageResource(ImageView.java:367)
at com.wlodsgn.bunbunup.MenuActivity$PlaceholderFragment.onCreateView(MenuActivity.java:345)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1786)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:947)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1126)
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:739)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1489)
at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:486)
at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141)
at android.support.v4.view.ViewPager.populate(ViewPager.java:1073)
at android.support.v4.view.ViewPager.populate(ViewPager.java:919)
at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1441)
at android.view.View.measure(View.java:16497)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
at android.view.View.measure(View.java:16497)
at android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:851)
at android.view.View.measure(View.java:16497)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
at android.view.View.measure(View.java:16497)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
at android.support.v7.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:453)
at android.view.View.measure(View.java:16497)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
at android.view.View.measure(View.java:16497)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
at android.view.View.measure(View.java:16497)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2291)
at android.view.View.measure(View.java:16497)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1916)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1113)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1295)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5670)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
at android.view.Choreographer.doCallbacks(Choreographer.java:574)
at android.view.Choreographer.doFrame(Choreographer.java:544)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
Need more info, let me know
Any help would be appreciated

I think I have found something.
fragmentManager.beginTransaction()
.replace(R.id.linear, fragment).commit();
As you see you try to replace the layout R.id.linear with your fragment. But the R.id.linear is the RelativeLayout you use in your fragment_menu.xml. You should replace the layout in your activity_menu.xml with the current fragment. So I would suggest:
fragmentManager.beginTransaction().replace(R.id.container, fragment).commit();
And in your activity_menu.xml:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ff0a393d">
<!-- Linearlayout to display Fragments -->
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:id="#+id/container">
EDIT:
For the new error: There is a problem with your memory. This often happens when ImageViews are filled by big ressources. So there is only one position where you use an ImageView:
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_menu, container, false);
ImageView imagenView = (ImageView) rootView.findViewById(R.id.imageView1);
imagenView.setImageResource(imagen);
return rootView;
}
As you see, your imagenView is filled by the resource imagen
imagenView.setImageResource(imagen);
Probably you get the OutOfMemoryError there. As a solution, try this:
try {
imagenView.setImageResource(imagen);
} catch (OutOfMemoryError e) {
//fill your ImageView with something smaller .. maybe a smaller resolution
Log.e("PlaceholderFragment", "Error: OutOfMemoryError")
}
Check your imagen too, whether there is a high resolution needed.

Unfortunately app has stopped in Android when try to implement RecylerView

I am following slidenerd Material design tutorial(Android RecyclerView Example part1,2,3,4) & I am using real device to test my android application.I have successfully build navigation drawer & when I try to add RecylerView into it by adding adapter (ThalakazAdapter.java) , app unfortunately get stopped.
This is my NavigationDrawerFragment.java
package com.thaalakaz.nadeesha.materialdesignapp1;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
//import android.app.Fragment;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.support.v4.app.Fragment;
import java.util.ArrayList;
import java.util.List;
/**
* A simple {#link Fragment} subclass.
*/
public class NavigationDrawerFragment extends Fragment {
private RecyclerView recyclerView;
public static final String PREF_FILE_NAME = "testpref";
public static final String KAY_USER_LEARNED_DRAWER ="user_learned_drawer";
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
private ThalakazAdapter adapter;
private boolean mUserLearnedDrawer;
private boolean mFromSavedInstanceState;
private View containerView;
public NavigationDrawerFragment() {
// Required empty public constructor
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mUserLearnedDrawer=Boolean.valueOf(readFromPreferences(getActivity(),KAY_USER_LEARNED_DRAWER,"false"));
if (savedInstanceState != null){
mFromSavedInstanceState = true;
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View layout = inflater.inflate(R.layout.fragment_navigation_drawer, container, false);
recyclerView = (RecyclerView) layout.findViewById(R.id.drawer_layout);
adapter = new ThalakazAdapter(getActivity(),getData());
recyclerView.setAdapter(adapter);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
return layout;
}
public static List<Information> getData(){
List<Information> data = new ArrayList<>();
int[] icons ={R.drawable.ic_m,R.drawable.ic_m1,R.drawable.ic_m2,R.drawable.ic_m3};
String[] titles = {"Nadeesha","Thilakarathne","Semini","Roshani"};
for (int i=0;i<titles.length && i<icons.length;i++){
Information current = new Information();
current.iconId = icons[i];
current.titlel = titles[i];
data.add(current);
}
return data;
}
public void setUp(int fragmentId, DrawerLayout drawerLayout, final Toolbar toolbar) {
containerView = getActivity().findViewById(fragmentId);
mDrawerLayout = drawerLayout;
mDrawerToggle = new ActionBarDrawerToggle(getActivity(),drawerLayout,toolbar,R.string.drawer_open,R.string.drawer_close){
#Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
if(!mUserLearnedDrawer){
mUserLearnedDrawer = true;
saveToPreferences(getActivity(),KAY_USER_LEARNED_DRAWER,mUserLearnedDrawer+"");
}
getActivity().invalidateOptionsMenu();
}
#Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
getActivity().invalidateOptionsMenu();
}
#Override
public void onDrawerSlide(View drawerView, float slideOffset) {
if (slideOffset<0.6){
toolbar.setAlpha(1-slideOffset);
}
}
};
if (!mUserLearnedDrawer && mFromSavedInstanceState){
mDrawerLayout.openDrawer(containerView);
}
mDrawerLayout.setDrawerListener(mDrawerToggle);
mDrawerLayout.post(new Runnable() {
#Override
public void run() {
mDrawerToggle.syncState();
}
});
}
public static void saveToPreferences(Context context,String prferenceName,String preferenceValue){
SharedPreferences sharedPreferences = context.getSharedPreferences(PREF_FILE_NAME,Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString(prferenceName,preferenceValue);
editor.apply();
}
public static String readFromPreferences(Context context,String prferenceName,String defaultValue){
SharedPreferences sharedPreferences = context.getSharedPreferences(PREF_FILE_NAME,Context.MODE_PRIVATE);
return sharedPreferences.getString(prferenceName,defaultValue);
}
}
This is my Adapter (ThalakazAdapter.java)
package com.thaalakaz.nadeesha.materialdesignapp1;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import java.util.Collections;
import java.util.List;
/**
* Created by hp on 7/22/2015.
*/
public class ThalakazAdapter extends RecyclerView.Adapter <ThalakazAdapter.myViewHolder>{
private LayoutInflater inflater;
List<Information> data = Collections.emptyList();
public ThalakazAdapter(Context context, List<Information> data){
inflater=LayoutInflater.from(context);
this.data = data;
}
#Override
public myViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view=inflater.inflate(R.layout.custom_row, parent, false);
myViewHolder holder = new myViewHolder(view);
return holder;
}
#Override
public void onBindViewHolder(myViewHolder holder, int position) {
Information current = data.get(position);
holder.title.setText(current.titlel);
holder.icon.setImageResource(current.iconId);
}
#Override
public int getItemCount() {
return 0;
}
class myViewHolder extends RecyclerView.ViewHolder{
ImageView icon;
TextView title;
public myViewHolder(View itemView) {
super(itemView);
title = (TextView) itemView.findViewById(R.id.listText);
icon = (ImageView) itemView.findViewById(R.id.listIcon);
}
}
}
My information.java class
package com.thaalakaz.nadeesha.materialdesignapp1;
/**
* Created by hp on 7/22/2015.
*/
public class Information {
int iconId;
String titlel;
}
You can view my entire project from here
Logcat
07-21 22:32:07.101 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 D/dalvikvm﹕ Late-enabling CheckJNI
07-21 22:32:07.111 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 I/SystemProperties﹕ get key=ro.kernel.android.tracing
07-21 22:32:07.281 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 I/dalvikvm﹕ Could not find method android.view.ViewGroup.onRtlPropertiesChanged, referenced from method android.support.v7.widget.Toolbar.onRtlPropertiesChanged
07-21 22:32:07.281 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 W/dalvikvm﹕ VFY: unable to resolve virtual method 14685: Landroid/view/ViewGroup;.onRtlPropertiesChanged (I)V
07-21 22:32:07.281 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 D/dalvikvm﹕ VFY: replacing opcode 0x6f at 0x0007
07-21 22:32:07.301 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.internal.widget.TintTypedArray.getChangingConfigurations
07-21 22:32:07.301 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 W/dalvikvm﹕ VFY: unable to resolve virtual method 414: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
07-21 22:32:07.301 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x0002
07-21 22:32:07.311 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.internal.widget.TintTypedArray.getType
07-21 22:32:07.311 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 W/dalvikvm﹕ VFY: unable to resolve virtual method 436: Landroid/content/res/TypedArray;.getType (I)I
07-21 22:32:07.311 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x0002
07-21 22:32:07.381 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 D/AndroidRuntime﹕ Shutting down VM
07-21 22:32:07.381 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x41027208)
07-21 22:32:07.391 7099-7099/com.thaalakaz.nadeesha.materialdesignapp1 E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.thaalakaz.nadeesha.materialdesignapp1/com.thaalakaz.nadeesha.materialdesignapp1.MainActivity}: android.view.InflateException: Binary XML file line #24: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
at android.app.ActivityThread.access$600(ActivityThread.java:123)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4424)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #24: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:697)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:739)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:742)
at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106)
at com.thaalakaz.nadeesha.materialdesignapp1.MainActivity.onCreate(MainActivity.java:20)
at android.app.Activity.performCreate(Activity.java:4465)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
            at android.app.ActivityThread.access$600(ActivityThread.java:123)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4424)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.thaalakaz.nadeesha.materialdesignapp1.NavigationDrawerFragment.onCreateView(NavigationDrawerFragment.java:63)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1789)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:924)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1116)
at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1218)
at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2170)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:300)
at android.support.v7.app.AppCompatDelegateImplV7.callActivityOnCreateView(AppCompatDelegateImplV7.java:838)
at android.support.v7.app.AppCompatDelegateImplV11.callActivityOnCreateView(AppCompatDelegateImplV11.java:34)
at android.support.v7.app.AppCompatDelegateImplV7.onCreateView(AppCompatDelegateImplV7.java:826)
at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(LayoutInflaterCompatHC.java:44)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:668)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:739)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:742)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
            at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249)
            at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106)
            at com.thaalakaz.nadeesha.materialdesignapp1.MainActivity.onCreate(MainActivity.java:20)
            at android.app.Activity.performCreate(Activity.java:4465)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
            at android.app.ActivityThread.access$600(ActivityThread.java:123)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4424)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
            at dalvik.system.NativeStart.main(Native Method)
fragment_navigation_drawer.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#DADADA"
tools:context="com.thaalakaz.nadeesha.materialdesignapp1.NavigationDrawerFragment">
<LinearLayout
android:id="#+id/containerDrawerImage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FF6F00">
<ImageView
android:layout_width="280dp"
android:layout_height="140dp"
android:src = "#drawable/dog"
android:layout_margin="16dp"/>
</LinearLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/drawerList"
android:layout_height="match_parent"
android:layout_width="wrap_content">
</android.support.v7.widget.RecyclerView>
</RelativeLayout>

in your onCreateView your are looking for the wrong id. Change
recyclerView = (RecyclerView) layout.findViewById(R.id.drawer_layout);
with
recyclerView = (RecyclerView) layout.findViewById(R.id.drawerList);
I also noticed that in your Adapter's constructor, you are assingn this.data to itself. Change
this.data = this.data;
to
this.data = data
and getItemCount shouldn't return 0, but the size of data (if it is not null)

Json Data on Fragment

I am learning android programming and created a basic project using android studio.
My application crashes when I click on the getdata button.
The MainActivity.java:
package com.cs_infotech.newpathshala;
import android.app.Activity;
import android.app.FragmentTransaction;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.content.Context;
import android.os.Build;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.support.v4.widget.DrawerLayout;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity
implements NavigationDrawerFragment.NavigationDrawerCallbacks {
/**
* Fragment managing the behaviors, interactions and presentation of the navigation drawer.
*/
private NavigationDrawerFragment mNavigationDrawerFragment;
/**
* Used to store the last screen title. For use in {#link #restoreActionBar()}.
*/
private CharSequence mTitle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mNavigationDrawerFragment = (NavigationDrawerFragment)
getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
mTitle = getTitle();
// Set up the drawer.
mNavigationDrawerFragment.setUp(
R.id.navigation_drawer,
(DrawerLayout) findViewById(R.id.drawer_layout));
}
#Override
public void onNavigationDrawerItemSelected(int position) {
// update the main content by replacing fragments
Fragment fragment = null;
switch (position) {
case 0:
fragment = new ExampleFragment();
break;
case 1:
fragment = new Example1Fragment();
break;
case 2:
fragment = new Example2Fragment();
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, fragment).commit();
} }
public void onSectionAttached(int number) {
switch (number) {
case 1:
mTitle = "ePathshala";
break;
case 2:
mTitle = "Daily Collection";
break;
case 3:
mTitle = "New Enrolled";
break;
}
}
public void restoreActionBar() {
ActionBar actionBar = getSupportActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setTitle(mTitle);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
if (!mNavigationDrawerFragment.isDrawerOpen()) {
// Only show items in the action bar relevant to this screen
// if the drawer is not showing. Otherwise, let the drawer
// decide what to show in the action bar.
getMenuInflater().inflate(R.menu.main, menu);
restoreActionBar();
return true;
}
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MainActivity) activity).onSectionAttached(
getArguments().getInt(ARG_SECTION_NUMBER));
}
}
}
test1.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:id="#+id/getdata"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="23dp"
android:text="Get Data" />
<ListView
android:id="#+id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/getdata" />
<TextView
android:id="#+id/vers"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
<TextView
android:id="#+id/name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
<TextView
android:id="#+id/api"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
Example1Fragment.java:
package com.cs_infotech.newpathshala;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
import com.cs_infotech.newpathshala.R;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.HashMap;
public class Example1Fragment extends Fragment {
ListView list;
TextView ver;
TextView name;
TextView api;
Button btngetdata;
ArrayList<HashMap<String, String>> oslist = new ArrayList<HashMap<String, String>>();
//URL to get JSON Array
private static String url = "http://api.learn2crack.com/android/jsonos/";
//JSON Node Names
private static final String TAG_OS = "android";
private static final String TAG_VER = "ver";
private static final String TAG_NAME = "name";
private static final String TAG_API = "api";
JSONArray android = null;
private View v;
public Example1Fragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.test1, container, false);
oslist = new ArrayList<HashMap<String, String>>();
btngetdata = (Button) rootView.findViewById(R.id.getdata);
v=rootView;
btngetdata.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
new JSONParse().execute();
//Toast.makeText(getActivity(), "You Clicked at " , Toast.LENGTH_SHORT).show();
}
});
return rootView;
}
private class JSONParse extends AsyncTask<String, String, JSONObject> {
private ProgressDialog pDialog;
#Override
protected void onPreExecute() {
super.onPreExecute();
name = (TextView) v.findViewById(R.id.name);
ver = (TextView) v.findViewById(R.id.vers);
api = (TextView) v.findViewById(R.id.api);
pDialog = new ProgressDialog(getActivity());
pDialog.setMessage("Getting Data ...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
#Override
protected JSONObject doInBackground(String... args) {
JSONParser jParser = new JSONParser();
// Getting JSON from URL
JSONObject json = jParser.getJSONFromUrl("http://api.learn2crack.com/android/jsonos/");
return json;
}
#Override
protected void onPostExecute(JSONObject json) {
pDialog.dismiss();
try {
// Getting JSON Array from URL
android = json.getJSONArray(TAG_OS);
for(int i = 0; i < android.length(); i++){
JSONObject c = android.getJSONObject(i);
// Storing JSON item in a Variable
String ver = c.getString(TAG_VER);
String name = c.getString(TAG_NAME);
String api = c.getString(TAG_API);
// Adding value HashMap key => value
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_VER, ver);
map.put(TAG_NAME, name);
map.put(TAG_API, api);
oslist.add(map);
list=(ListView) v.findViewById(R.id.list);
ListAdapter adapter = new SimpleAdapter(getActivity(), oslist,
R.layout.list_v,
new String[] { TAG_VER,TAG_NAME, TAG_API }, new int[] {
R.id.vers,R.id.name, R.id.api});
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Toast.makeText(getActivity(), "You Clicked at " + oslist.get(+position).get("name"), Toast.LENGTH_SHORT).show();
}
});
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
Logcat:
04-10 10:12:52.253 30126-30126/com.cs_infotech.newpathshala D/ActivityThread﹕ handleBindApplication:com.cs_infotech.newpathshala
04-10 10:12:52.343 30126-30126/com.cs_infotech.newpathshala W/ApplicationPackageManager﹕ getCSCPackageItemText()
04-10 10:12:52.343 30126-30126/com.cs_infotech.newpathshala D/DisplayManager﹕ DisplayManager()
04-10 10:12:52.423 30126-30126/com.cs_infotech.newpathshala I/dalvikvm﹕ Could not find method android.view.ViewGroup.onNestedScrollAccepted, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.onNestedScrollAccepted
04-10 10:12:52.423 30126-30126/com.cs_infotech.newpathshala W/dalvikvm﹕ VFY: unable to resolve virtual method 11359: Landroid/view/ViewGroup;.onNestedScrollAccepted (Landroid/view/View;Landroid/view/View;I)V
04-10 10:12:52.423 30126-30126/com.cs_infotech.newpathshala D/dalvikvm﹕ VFY: replacing opcode 0x6f at 0x0000
04-10 10:12:52.423 30126-30126/com.cs_infotech.newpathshala I/dalvikvm﹕ Could not find method android.view.ViewGroup.onStopNestedScroll, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.onStopNestedScroll
04-10 10:12:52.423 30126-30126/com.cs_infotech.newpathshala W/dalvikvm﹕ VFY: unable to resolve virtual method 11365: Landroid/view/ViewGroup;.onStopNestedScroll (Landroid/view/View;)V
04-10 10:12:52.423 30126-30126/com.cs_infotech.newpathshala D/dalvikvm﹕ VFY: replacing opcode 0x6f at 0x0000
04-10 10:12:52.433 30126-30126/com.cs_infotech.newpathshala I/dalvikvm﹕ Could not find method android.support.v7.internal.widget.ActionBarOverlayLayout.stopNestedScroll, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.setHideOnContentScrollEnabled
04-10 10:12:52.433 30126-30126/com.cs_infotech.newpathshala W/dalvikvm﹕ VFY: unable to resolve virtual method 9053: Landroid/support/v7/internal/widget/ActionBarOverlayLayout;.stopNestedScroll ()V
04-10 10:12:52.433 30126-30126/com.cs_infotech.newpathshala D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x000e
04-10 10:12:52.443 30126-30126/com.cs_infotech.newpathshala I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.internal.widget.TintTypedArray.getChangingConfigurations
04-10 10:12:52.443 30126-30126/com.cs_infotech.newpathshala W/dalvikvm﹕ VFY: unable to resolve virtual method 374: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
04-10 10:12:52.443 30126-30126/com.cs_infotech.newpathshala D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x0002
04-10 10:12:52.443 30126-30126/com.cs_infotech.newpathshala I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.internal.widget.TintTypedArray.getType
04-10 10:12:52.443 30126-30126/com.cs_infotech.newpathshala W/dalvikvm﹕ VFY: unable to resolve virtual method 396: Landroid/content/res/TypedArray;.getType (I)I
04-10 10:12:52.443 30126-30126/com.cs_infotech.newpathshala D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x0002
04-10 10:12:52.834 30126-30126/com.cs_infotech.newpathshala D/OpenGLRenderer﹕ Enabling debug mode 0
04-10 10:12:52.934 30126-30126/com.cs_infotech.newpathshala I/Timeline﹕ Timeline: Activity_idle id: android.os.BinderProxy#41e049e0 time:9101016
04-10 10:15:04.772 30126-30126/com.cs_infotech.newpathshala I/Timeline﹕ Timeline: Activity_idle id: android.os.BinderProxy#41e049e0 time:9232856
04-10 10:15:11.359 30126-30656/com.cs_infotech.newpathshala W/dalvikvm﹕ threadid=11: thread exiting with uncaught exception (group=0x416c8bc0)
04-10 10:15:11.379 30126-30656/com.cs_infotech.newpathshala E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #1
Process: com.cs_infotech.newpathshala, PID: 30126
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:300)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:841)
Caused by: java.lang.SecurityException: Permission denied (missing INTERNET permission?)
at java.net.InetAddress.lookupHostByName(InetAddress.java:418)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
at java.net.InetAddress.getAllByName(InetAddress.java:214)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137)
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
at com.cs_infotech.newpathshala.JSONParser.getJSONFromUrl(JSONParser.java:44)
at com.cs_infotech.newpathshala.Example1Fragment$JSONParse.doInBackground(Example1Fragment.java:80)
at com.cs_infotech.newpathshala.Example1Fragment$JSONParse.doInBackground(Example1Fragment.java:62)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
            at java.lang.Thread.run(Thread.java:841)
Caused by: libcore.io.GaiException: getaddrinfo failed: EAI_NODATA (No address associated with hostname)
at libcore.io.Posix.getaddrinfo(Native Method)
at libcore.io.ForwardingOs.getaddrinfo(ForwardingOs.java:61)
at java.net.InetAddress.lookupHostByName(InetAddress.java:405)
            at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
            at java.net.InetAddress.getAllByName(InetAddress.java:214)
            at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137)
            at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
            at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
            at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
            at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
            at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
            at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
            at com.cs_infotech.newpathshala.JSONParser.getJSONFromUrl(JSONParser.java:44)
            at com.cs_infotech.newpathshala.Example1Fragment$JSONParse.doInBackground(Example1Fragment.java:80)
            at com.cs_infotech.newpathshala.Example1Fragment$JSONParse.doInBackground(Example1Fragment.java:62)
            at android.os.AsyncTask$2.call(AsyncTask.java:288)
            at java.util.concurrent.FutureTask.run(FutureTask.java:237)
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
            at java.lang.Thread.run(Thread.java:841)
Caused by: libcore.io.ErrnoException: getaddrinfo failed: EACCES (Permission denied)
            at libcore.io.Posix.getaddrinfo(Native Method)
            at libcore.io.ForwardingOs.getaddrinfo(ForwardingOs.java:61)
            at java.net.InetAddress.lookupHostByName(InetAddress.java:405)
            at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
            at java.net.InetAddress.getAllByName(InetAddress.java:214)
            at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137)
            at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
            at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
            at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
            at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
            at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
            at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
            at com.cs_infotech.newpathshala.JSONParser.getJSONFromUrl(JSONParser.java:44)
            at com.cs_infotech.newpathshala.Example1Fragment$JSONParse.doInBackground(Example1Fragment.java:80)
            at com.cs_infotech.newpathshala.Example1Fragment$JSONParse.doInBackground(Example1Fragment.java:62)
            at android.os.AsyncTask$2.call(AsyncTask.java:288)
            at java.util.concurrent.FutureTask.run(FutureTask.java:237)
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
            at java.lang.Thread.run(Thread.java:841)
04-10 10:15:12.330 30126-30126/com.cs_infotech.newpathshala E/OpenGLRenderer﹕ SFEffectCache:clear(), mSize = 0
04-10 10:15:12.360 30126-30126/com.cs_infotech.newpathshala E/WindowManager﹕ android.view.WindowLeaked: Activity com.cs_infotech.newpathshala.MainActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{41e91890 V.E..... R......D 0,0-471,144} that was originally added here
at android.view.ViewRootImpl.<init>(ViewRootImpl.java:388)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:248)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
at android.app.Dialog.show(Dialog.java:286)
at com.cs_infotech.newpathshala.Example1Fragment$JSONParse.onPreExecute(Example1Fragment.java:74)
at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:587)
at android.os.AsyncTask.execute(AsyncTask.java:535)
at com.cs_infotech.newpathshala.Example1Fragment$1.onClick(Example1Fragment.java:56)
at android.view.View.performClick(View.java:4508)
at android.view.View$PerformClick.run(View.java:18675)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5584)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1268)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1084)
at dalvik.system.NativeStart.main(Native Method)
04-10 10:15:14.992 30126-30656/com.cs_infotech.newpathshala I/Process﹕ Sending signal. PID: 30126 SIG: 9
How can I resolve this?

Error while building test sliding menu

Hi I followed a tutorial I am trying to test sliding menu (Navigation drawer) in android but I am continuously getting these error in logcat. Please help me or give me some idea so that I can proceed to resolve the issue.HELP................
2-12 18:37:43.976: E/Trace(698): error opening trace file: No such file or directory (2)
02-12 18:37:44.666: I/System.out(698): activity started-----------
02-12 18:37:44.666: I/System.out(698): 3
02-12 18:37:44.676: D/AndroidRuntime(698): Shutting down VM
02-12 18:37:44.676: W/dalvikvm(698): threadid=1: thread exiting with uncaught exception (group=0x40a13300)
02-12 18:37:44.696: E/AndroidRuntime(698): FATAL EXCEPTION: main
02-12 18:37:44.696: E/AndroidRuntime(698): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.navigationdrawertest/com.example.navigationdrawertest.HomeActivity}: java.lang.NullPointerException
02-12 18:37:44.696: E/AndroidRuntime(698): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
02-12 18:37:44.696: E/AndroidRuntime(698): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
02-12 18:37:44.696: E/AndroidRuntime(698): at android.app.ActivityThread.access$600(ActivityThread.java:130)
02-12 18:37:44.696: E/AndroidRuntime(698): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
02-12 18:37:44.696: E/AndroidRuntime(698): at android.os.Handler.dispatchMessage(Handler.java:99)
02-12 18:37:44.696: E/AndroidRuntime(698): at android.os.Looper.loop(Looper.java:137)
02-12 18:37:44.696: E/AndroidRuntime(698): at android.app.ActivityThread.main(ActivityThread.java:4745)
02-12 18:37:44.696: E/AndroidRuntime(698): at java.lang.reflect.Method.invokeNative(Native Method)
02-12 18:37:44.696: E/AndroidRuntime(698): at java.lang.reflect.Method.invoke(Method.java:511)
02-12 18:37:44.696: E/AndroidRuntime(698): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
02-12 18:37:44.696: E/AndroidRuntime(698): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
02-12 18:37:44.696: E/AndroidRuntime(698): at dalvik.system.NativeStart.main(Native Method)
02-12 18:37:44.696: E/AndroidRuntime(698): Caused by: java.lang.NullPointerException
02-12 18:37:44.696: E/AndroidRuntime(698): at com.example.navigationdrawertest.HomeActivity.onCreate(HomeActivity.java:40)
02-12 18:37:44.696: E/AndroidRuntime(698): at android.app.Activity.performCreate(Activity.java:5008)
02-12 18:37:44.696: E/AndroidRuntime(698): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
02-12 18:37:44.696: E/AndroidRuntime(698): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
02-12 18:37:44.696: E/AndroidRuntime(698): ... 11 more
02-12 18:37:48.396: I/Process(698): Sending signal. PID: 698 SIG: 9
Also my HomeActivity.java file
package com.example.navigationdrawertest;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
import com.example.navigationdrawertest.operatingsystemfragment.*;
public class HomeActivity extends Activity {
private String[] mPlanetTitles;
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
private CharSequence title;
#SuppressLint("NewApi")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
System.out.println("activity started-----------");
title = getActionBar().getTitle();
mPlanetTitles = getResources().getStringArray(R.array.operating_systems);
System.out.println(mPlanetTitles.length);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
// Set the adapter for the list view
mDrawerList.setAdapter(new ArrayAdapter<String>(this,
R.layout.nav_drawer,R.id.content_frame, mPlanetTitles));
System.out.println("adapater set to list");
// Set the list's click listener
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */
mDrawerLayout, /* DrawerLayout object */
R.drawable.ic_drawer, /* nav drawer icon to replace 'Up' caret */
R.string.drawer_open, /* "open drawer" description */
R.string.drawer_close /* "close drawer" description */) {
/** Called when a drawer has settled in a completely closed state. */
public void onDrawerClosed(View view) {
getActionBar().setTitle(title);
}
/** Called when a drawer has settled in a completely open state. */
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle("Open Drawer");
}
};
// Set the drawer toggle as the DrawerListener and then Drawer layout will listen on Drawertoggle
mDrawerLayout.setDrawerListener(mDrawerToggle);
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
System.out.println("on create method completed");
}
private class DrawerItemClickListener implements ListView.OnItemClickListener {
#Override
public void onItemClick(AdapterView parent, View view, int position, long id) {
System.out.println("DrawerItemClickListener");
selectItem(position);
}
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.home, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Pass the event to ActionBarDrawerToggle, if it returns
// true, then it has handled the app icon touch event
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle your other action bar items...
switch (item.getItemId()) {
case R.id.action_settings:
Toast.makeText(this, "Settings selected", Toast.LENGTH_LONG).show();
break;
default:
break;
}
return super.onOptionsItemSelected(item);
}
/** Swaps fragments in the main content view */
private void selectItem(int position) {
System.out.println("selectItem called");
// create a new fragment and specify the planet to show based on position
Fragment fragment = new OperatingSystemFragment();
Bundle args = new Bundle();
args.putInt(OperatingSystemFragment.ARG_OS, position);
fragment.setArguments(args);
// Insert the fragment by replacing any existing fragment
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.content_frame, fragment)
.commit();
// Highlight the selected item, update the title, and close the drawer
mDrawerList.setItemChecked(position, true);
getActionBar().setTitle((mPlanetTitles[position]));
mDrawerLayout.closeDrawer(mDrawerList);
}
}
I have to use navigation drawer in API 8 so using support packages. Please help me.

Either your mDrawerList is null or mPlanetTitles is null. Check them both at the debugger.

2-12 18:37:43.976: E/Trace(698): error opening trace file: No such file or directory (2)
The error You are facing is in this line of code
mDrawerList.setAdapter(new ArrayAdapter<String>(this,
R.layout.nav_drawer,R.id.content_frame, mPlanetTitles));
mPlanetTitles seems to be null

Getting error in my android app

I am trying to develop a simple app with navigation drawer.
I do all my best and view so many articles but I failed
There is no error in my code but when I run my app in emulator it shows run time error...
plzz help me
here is my logcat file
12-19 15:07:20.562: E/AndroidRuntime(1067): FATAL EXCEPTION: main
12-19 15:07:20.562: E/AndroidRuntime(1067): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.dhruv.sms/com.dhruv.sms.MainActivity}: java.lang.NullPointerException
12-19 15:07:20.562: E/AndroidRuntime(1067): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
12-19 15:07:20.562: E/AndroidRuntime(1067): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
12-19 15:07:20.562: E/AndroidRuntime(1067): at android.app.ActivityThread.access$600(ActivityThread.java:141)
12-19 15:07:20.562: E/AndroidRuntime(1067): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
12-19 15:07:20.562: E/AndroidRuntime(1067): at android.os.Handler.dispatchMessage(Handler.java:99)
12-19 15:07:20.562: E/AndroidRuntime(1067): at android.os.Looper.loop(Looper.java:137)
12-19 15:07:20.562: E/AndroidRuntime(1067): at android.app.ActivityThread.main(ActivityThread.java:5039)
12-19 15:07:20.562: E/AndroidRuntime(1067): at java.lang.reflect.Method.invokeNative(Native Method)
12-19 15:07:20.562: E/AndroidRuntime(1067): at java.lang.reflect.Method.invoke(Method.java:511)
12-19 15:07:20.562: E/AndroidRuntime(1067): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
12-19 15:07:20.562: E/AndroidRuntime(1067): at com.android.internal.os.ZygoteInit.main
(ZygoteInit.java:560)
12-19 15:07:20.562: E/AndroidRuntime(1067): at dalvik.system.NativeStart.main(Native Method)
12-19 15:07:20.562: E/AndroidRuntime(1067): Caused by: java.lang.NullPointerException
12-19 15:07:20.562: E/AndroidRuntime(1067): at com.dhruv.sms.MainActivity.onCreate(MainActivity.java:80)
12-19 15:07:20.562: E/AndroidRuntime(1067): at android.app.Activity.performCreate(Activity.java:5104)
12-19 15:07:20.562: E/AndroidRuntime(1067): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
12-19 15:07:20.562: E/AndroidRuntime(1067): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
12-19 15:07:20.562: E/AndroidRuntime(1067): ... 11 more
And this is my java file
package com.dhruv.sms;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class MainActivity extends Activity {
// Within which the entire activity is enclosed
private DrawerLayout mDrawerLayout;
// ListView represents Navigation Drawer
private ListView mDrawerList;
// ActionBarDrawerToggle indicates the presence of Navigation Drawer in the action bar
private ActionBarDrawerToggle mDrawerToggle;
// Title of the action bar
private String mTitle = "";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTitle = "App title";
getActionBar().setTitle(mTitle);
// Getting reference to the DrawerLayout
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.conversation_list);
// Getting reference to the ActionBarDrawerToggle
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_launcher, R.string.drawer_open,
R.string.drawer_close) {
/** Called when drawer is closed */
public void onDrawerClosed(View view) {
getActionBar().setTitle(mTitle);
invalidateOptionsMenu();
}
/** Called when a drawer is opened */
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle("App title");
invalidateOptionsMenu();
}
};
// Setting DrawerToggle on DrawerLayout
mDrawerLayout.setDrawerListener(mDrawerToggle);
// Creating an ArrayAdapter to add items to the listview mDrawerList
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getBaseContext(),
R.layout.drawer_list_item, getResources().getStringArray(R.array.sidebar_list_array));
// Setting the adapter on mDrawerList
mDrawerList.setAdapter(adapter);
// Enabling Home button
getActionBar().setHomeButtonEnabled(true);
// Enabling Up navigation
getActionBar().setDisplayHomeAsUpEnabled(true);
// Setting item click listener for the listview mDrawerList
mDrawerList.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// Getting an array of rivers
String[] menuItems = getResources().getStringArray(R.array.sidebar_list_array);
// Currently selected river
mTitle = menuItems[position];
// Creating a fragment object
Fragment rFragment = new Fragment();
// Passing selected item information to fragment
// Getting reference to the FragmentManager
FragmentManager fragmentManager = getFragmentManager();
// Creating a fragment transaction
FragmentTransaction ft = fragmentManager.beginTransaction();
// Adding a fragment to the fragment transaction
ft.replace(R.id.content_frame, rFragment);
// Committing the transaction
ft.commit();
// Closing the drawer
mDrawerLayout.closeDrawer(mDrawerList);
}
});
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
/** Called whenever we call invalidateOptionsMenu() */
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
// If the drawer is open, hide action items related to the content view
boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
menu.findItem(R.id.action_settings).setVisible(!drawerOpen);
return super.onPrepareOptionsMenu(menu);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}

The variable mDrawerList might not be initialised correctly. It could be null, thus causing the NullPointerException.

There is an error in your code. The stack trace shows that. And here's the relevant information
12-19 15:07:20.562: E/AndroidRuntime(1067): Caused by: java.lang.NullPointerException
12-19 15:07:20.562: E/AndroidRuntime(1067): at com.dhruv.sms.MainActivity.onCreate(MainActivity.java:80)
Line 80 shows mDrawerList being accessed. It's null

the error is in this part of your code
mDrawerList.setAdapter(adapter);
mDrawerList reference might be wrong or adapter is wrong

private ListView mDrawerList=new ListView();
You haven't initialized the ListView.