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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.

Unable to start activity ComponentInfo{Activity}: android.view.InflateException: Binary XML file line #12: Error inflating class fragment

I am developing an application which uses google map APIs. In my application i want to show google map and set marker on my current location by getting my device latitude and longitude from GPS. In beginning when i was implement following code that works well, i test it on my device but after installing 15 or 20 times on my mobile device it starts crashing automatically although i didn't do anything on that activity.
The logs which are showing me android studio are following
Logs
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: FATAL EXCEPTION: main
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: Process: com.example.nabeelfarooq.mapsnavapplication, PID: 9110
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.nabeelfarooq.mapsnavapplication/com.example.nabeelfarooq.mapsnavapplication.MainActivity}: android.view.InflateException: Binary XML file line #12: Error inflating class fragment
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2455)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2517)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.app.ActivityThread.access$800(ActivityThread.java:162)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1412)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:106)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.os.Looper.loop(Looper.java:189)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5529)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:372)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:950)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:745)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: Caused by: android.view.InflateException: Binary XML file line #12: Error inflating class fragment
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:763)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.view.LayoutInflater.parseInclude(LayoutInflater.java:916)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.view.LayoutInflater.rInflate(LayoutInflater.java:802)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.view.LayoutInflater.parseInclude(LayoutInflater.java:916)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.view.LayoutInflater.rInflate(LayoutInflater.java:802)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:256)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at com.example.nabeelfarooq.mapsnavapplication.MainActivity.onCreate(MainActivity.java:59)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.app.Activity.performCreate(Activity.java:5966)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2408)
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2517) 
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.app.ActivityThread.access$800(ActivityThread.java:162) 
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1412) 
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:106) 
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.os.Looper.loop(Looper.java:189) 
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5529) 
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method) 
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:372) 
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:950) 
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:745) 
09-24 16:30:43.414 9110-9110/com.example.nabeelfarooq.mapsnavapplication E/AndroidRuntime: Caused by: java.lang.NullPointerException: Attempt to get length of null array
MainActivity
import android.Manifest;
import android.annotation.TargetApi;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.FragmentManager;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.util.Log;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.location.LocationSettingsRequest;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import java.io.Console;
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, OnMapReadyCallback, GoogleMap.OnMyLocationChangeListener, GoogleApiClient.OnConnectionFailedListener {
SupportMapFragment supportMapFragment = SupportMapFragment.newInstance();
private GoogleMap mMap;
private GoogleApiClient mGoogleApiClient;
private Location mLastLocation;
public static double latitude;
public static double longitude;
private Button button;
private LatlngAdapter databasedata = null;
final int REQUEST_CODE_ASK_PERMISSIONS = 123;
#TargetApi(Build.VERSION_CODES.M)
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i = new Intent(getApplicationContext(), SearchActivity.class);
i.putExtra("latitude", latitude);
i.putExtra("longitude", longitude);
startActivity(i);
}
});
int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getBaseContext());
if (status != ConnectionResult.SUCCESS) {
int requestCode = 10;
Dialog dialog = GooglePlayServicesUtil.getErrorDialog(status, this, requestCode);
dialog.show();
} else {
SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mMap = fm.getMap();
if (ContextCompat.checkSelfPermission(this,Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION},REQUEST_CODE_ASK_PERMISSIONS);
return;
}
else {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
mMap.setMyLocationEnabled(true);
}
}
mMap.setMyLocationEnabled(true);
mMap.setOnMyLocationChangeListener(this);
}
buildGoogleApiClient();
onMapReady(mMap);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
supportMapFragment.getMapAsync(this);
}
public void turnGPSOn() {
LocationManager service = (LocationManager) getSystemService(LOCATION_SERVICE);
boolean enabled = service
.isProviderEnabled(LocationManager.GPS_PROVIDER);
if (!enabled) {
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
this);
alertDialogBuilder
.setMessage("GPS is disabled in your device. Enable it?")
.setCancelable(false)
.setPositiveButton("yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
/** Here it's leading to GPS setting options*/
Intent callGPSSettingIntent = new Intent(
android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(callGPSSettingIntent);
}
});
alertDialogBuilder.setNegativeButton("No",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert = alertDialogBuilder.create();
alert.show();
}
}
protected void onStart() {
super.onStart();
mGoogleApiClient.connect();
}
protected void onPause(){
super.onPause();
mGoogleApiClient.disconnect();
}
//obtain the supportMapFragment and get notified when the map is ready to be used
protected synchronized void buildGoogleApiClient(){
if(mGoogleApiClient==null){
mGoogleApiClient=new GoogleApiClient.Builder(this).addOnConnectionFailedListener(this).addApi(LocationServices.API).build();
}
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#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);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
FragmentManager fragmentManager=getFragmentManager();
android.support.v4.app.FragmentManager fragmentManager1=getSupportFragmentManager();
// Handle navigation view item clicks here.
int id = item.getItemId();
if(supportMapFragment.isAdded()) {
fragmentManager1.beginTransaction().hide(supportMapFragment).commit();
}
if (id == R.id.nav_home) {
//fragmentManager1.beginTransaction().add(R.id.map,supportMapFragment).commit();
// Handle the home action
} else if (id == R.id.nav_about_us) {
Intent intent=new Intent(this,About_us_Activity.class);
startActivity(intent);
} else if (id == R.id.nav_contact_us){
Intent intent=new Intent(this,Contact_us_Activity.class);
startActivity(intent);
} else if (id == R.id.nav_Rate_app) {
Intent intent=new Intent(this,TipsActivity.class);
startActivity(intent);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap =googleMap;
LatLng lahore=new LatLng(latitude,longitude);
//mMap.addMarker(new MarkerOptions().title("lahore").snippet("lahore HQ").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN)).position(sydney));
//mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
}
#Override
public void onMyLocationChange(Location location) {
latitude=location.getLatitude();
longitude=location.getLongitude();
LatLng latLng=new LatLng(latitude,longitude);
//mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
//mMap.animateCamera(CameraUpdateFactory.zoomTo(15));
LatLng lahore=new LatLng(latitude,longitude);
//mMap.addMarker(new MarkerOptions().title("You are here").snippet("lahore").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN)).position(lahore));
// mMap.moveCamera(CameraUpdateFactory.newLatLng(lahore));
}
public void onConnected(Bundle bundle){
Log.d("CONNECTED", "I am connected");
mLastLocation=LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
if(mLastLocation!=null){
Log.d("Latitude",String.valueOf(mLastLocation.getLatitude()));
Log.d("Longitude",String.valueOf(mLastLocation.getLongitude()));
}
}
#Override
public void onConnectionFailed(ConnectionResult connectionResult) {
}
static String latString =Double.toString(latitude);
static String lonString =Double.toString(longitude);
}
content_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:showIn="#layout/app_bar_main"
tools:context=".MainActivity">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/map"
android:layout_alignParentBottom="true"
tools:context=".MapsActivity"
android:name="com.google.android.gms.maps.SupportMapFragment"
tools:layout="#layout/abc_action_bar_up_container"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Get Me Somewhere"
android:id="#+id/button"
android:background="#5368ed"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="31dp"
/>
</RelativeLayout>

EDIT: A user has pointed that this bug is happening also in 7.0 devices, so keep in mind that you may change android:maxSdkVersion="22" to an appropiate Sdk version.
The problem is only happening in 5.1.1 devices with custom roms like Resurrection Remix. I don't know the reason, but you can solve it adding this to your manifest, as seen in https://stackoverflow.com/a/39696819/4208583.
<uses-permission
android:name="android.permission.WRITE_EXTERNAL_STORAGE"
android:maxSdkVersion="22" />
<uses-permission
android:name="android.permission.READ_EXTERNAL_STORAGE"
android:maxSdkVersion="22" />

Remove action bar in manifest by specifying NoActionBar theme

Function in fragment makes emulator crash

Error occurs when I place a function inside onCreateView in menu1_Fragment.java. Sorry in advance as I will be placing my logs in as well so it might make my post a bit big so I will tell you the layout. I am new sorry for the loads of questions.
The code works perfectly if I just don't put the function setClick() inside my fragment. quick note the function basically makes my image in menu1_layout.xml a 3 way button aka start stop reset where when you reset, it pops up a toast of exact time you got
1) menu1_Fragment.java
public class menu1_Fragment extends Fragment {
Chronometer mChronometer;
int loop = 0;
double startTime;
double millis;
View rootview;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
rootview = inflater.inflate(R.layout.menu1_layout, container, false);
setClick();
return rootview;
}
Button button;
public void setClick() {
mChronometer = (Chronometer) getActivity().findViewById(R.id.aChronometer);
button = (Button) getActivity().findViewById(R.id.stopWatch);
button.setOnClickListener(mStartListener);
button = (Button) getActivity().findViewById(R.id.stopWatch);
button.setOnClickListener(mStartListener);
button = (Button) getActivity().findViewById(R.id.stopWatch);
button.setOnClickListener(mStartListener);
}
View.OnClickListener mStartListener = new View.OnClickListener() {
public void onClick(View v) {
if (loop == 0) {
mChronometer.setBase(SystemClock.elapsedRealtime());
mChronometer.start();
startTime = System.currentTimeMillis();
loop++;
} else if (loop == 1) {
mChronometer.stop();
millis = System.currentTimeMillis()-startTime;
loop++;
} else if (loop == 2) {
mChronometer.setBase(SystemClock.elapsedRealtime());
Context context = getActivity().getApplicationContext();
CharSequence text = "Your Time is: " + (millis/1000);
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
loop = 0;
}
}
};
}
2) LOGS
10-28 16:52:26.552 2912-2912/app.z0nen.menu D/AndroidRuntime: Shutting down VM
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: FATAL EXCEPTION: main
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: Process: app.z0nen.menu, PID: 2912
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{app.z0nen.menu/app.z0nen.slidemenu.MyActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.ActivityThread.-wrap11(ActivityThread.java)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:102)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.os.Looper.loop(Looper.java:148)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5417)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at app.z0nen.slidemenu.menu1_Fragment.setClick(menu1_Fragment.java:39)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at app.z0nen.slidemenu.menu1_Fragment.onCreateView(menu1_Fragment.java:26)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.Fragment.performCreateView(Fragment.java:2220)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:973)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1148)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.BackStackRecord.run(BackStackRecord.java:793)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1535)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.FragmentController.execPendingActions(FragmentController.java:325)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.Activity.performStart(Activity.java:6252)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2379)
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.ActivityThread.-wrap11(ActivityThread.java) 
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:102) 
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.os.Looper.loop(Looper.java:148) 
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5417) 
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method) 
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
10-28 16:52:26.552 2912-2912/app.z0nen.menu E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
10-28 16:52:28.662 2912-2912/? I/Process: Sending signal. PID: 2912 SIG: 9
3) MyActivity.Java
public class MyActivity extends Activity
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_my);
mNavigationDrawerFragment = (NavigationDrawerFragment)
getFragmentManager().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) {
Fragment objFragment = null;
switch (position) {
case 0:
objFragment = new menu1_Fragment();
break;
case 1:
objFragment = new menu2_Fragment();
break;
}
// update the main content by replacing fragments
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, objFragment)
.commit();
}
public void onSectionAttached(int number) {
switch (number) {
case 1:
mTitle = getString(R.string.title_section1);
break;
case 2:
mTitle = getString(R.string.title_section2);
break;
}
}
public void restoreActionBar() {
ActionBar actionBar = getActionBar();
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.my, 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_my, container, false);
return rootView;
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MyActivity) activity).onSectionAttached(
getArguments().getInt(ARG_SECTION_NUMBER));
}
}
}
4) Menu1_layout.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent"
android:gravity="center_horizontal">
<Chronometer
android:id="#+id/aChronometer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="40sp"
android:textColor="#111111"
android:layout_marginTop="27dp"
android:layout_below="#+id/stopWatch"
android:layout_centerHorizontal="true" />
<Button
android:id="#+id/stopWatch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/stopwatch2"
android:layout_marginTop="38dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>

You can't use getActivity() from onCreateView() as the fragment's activity has not been created yet. You should use not use getActivity() until onActivityCreated() is called, or better yet, use the rootview you inflated to do your findViewByID() calls.
Also, you are initializing your button three times. You should get rid on two of them :)

Change
button = (Button) getActivity().findViewById(R.id.stopWatch);
to this:
button = (Button) findViewById(R.id.stopWatch);
Your button is inside your fragment's layout, not the activity's.
EDIT:
Make your button a member variable, so that you could access it from the onCreateView & setClick methods:
private Button mButton;
And we need to save a reference of your button in the onCreateView method to this: (rootview is your fragment's inflated layout)
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
rootview = inflater.inflate(R.layout.menu1_layout, container, false);
mButton = rootview.findViewById(R.id.stopWatch);
setClick();
return rootview;
}
and in the setClick method put this instead :
mButton.setOnClickListener(mStartListener);

Android app crashing with OnClickListener in fragment

I'm having a problem building my first App. I'm using Navigation drawer to switch between fragments. But when i choose OrderFragment from Navigation drawer, app crashes.
OrderFragment has only one button showing a toast when clicked, but the app crashes before the OrderFragment loads.
The code is:
MainActivity.java
package com.example.testcocogeek;
import android.app.Activity;
import android.app.Fragment;
import android.app.SearchManager;
import android.content.Intent;
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.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class MainActivity extends Activity {
private String[] mListOptions;
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private CharSequence mDrawerTitle;
private CharSequence mTitle;
private ActionBarDrawerToggle mDrawerToggle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTitle = mDrawerTitle = getTitle();
mListOptions = getResources().getStringArray(R.array.list_options);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
// Set adapter for the list view
mDrawerList.setAdapter (new ArrayAdapter<String> (this,
R.layout.drawer_list_item, mListOptions));
// enable ActionBar app icon to behave as action to toggle nav drawer
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
// Set the list click listener
mDrawerList.setOnItemClickListener (new DrawerItemClickListener());
// ActionBarDrawerToggle ties together the the proper interactions
// between the sliding drawer and the action bar app icon
mDrawerToggle = new ActionBarDrawerToggle(
this, /* host Activity */
mDrawerLayout, /* DrawerLayout object */
R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */
R.string.drawer_open, /* "open drawer" description for accessibility */
R.string.drawer_close /* "close drawer" description for accessibility */
) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(mTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(mDrawerTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
selectItem(0);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
return super.onCreateOptionsMenu(menu);
}
/* Called whenever we call invalidateOptionsMenu() */
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
// If the nav drawer is open, hide action items related to the content view
boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
menu.findItem(R.id.action_websearch).setVisible(!drawerOpen);
return super.onPrepareOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// The action bar home/up action should open or close the drawer.
// ActionBarDrawerToggle will take care of this.
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle action buttons
switch(item.getItemId()) {
case R.id.action_websearch:
// create intent to perform web search for this planet
Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);
intent.putExtra(SearchManager.QUERY, "Cocogeek");
// catch event that there's no activity to handle intent
if (intent.resolveActivity(getPackageManager()) != null) {
startActivity(intent);
} else {
Toast.makeText(this, R.string.app_not_available, Toast.LENGTH_LONG).show();
}
return true;
default:
return super.onOptionsItemSelected(item);
}
}
/* The click listener for ListView in the navigation drawer */
private class DrawerItemClickListener implements ListView.OnItemClickListener {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItem(position);
}
}
// This method selects correct fragment.
private void selectItem(int position) {
// update the main content by replacing fragments
Fragment fragment = null;
Bundle args = new Bundle();
switch (position) {
case 0:
fragment = new CocogeekFragment();
break;
case 1:
fragment = new OrderFragment();
break;
case 2:
fragment = new LocatorFragment();
break;
case 3:
fragment = new ContactFragment();
break;
default:
break;
}
fragment.setArguments(args);
android.app.FragmentManager frgManager = getFragmentManager();
frgManager.beginTransaction().replace(R.id.content_frame, fragment)
.commit();
mDrawerList.setItemChecked(position, true);
setTitle(mListOptions[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}
#Override
public void setTitle(CharSequence title) {
mTitle = title;
getActionBar().setTitle(mTitle);
}
#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 toggles
mDrawerToggle.onConfigurationChanged(newConfig);
}
}
OrderFragment.java
package com.example.testcocogeek;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class OrderFragment extends Fragment implements OnClickListener {
public OrderFragment() {
// Empty constructor required for fragment subclasses
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View mView = (View) inflater.inflate(R.layout.order_fragment, container, false);
// Initialize UI views.
final Button send = (Button) getActivity().findViewById(R.id.send);
//Initialize OnClick listener.
send.setOnClickListener(this);
return mView;
}
#Override
public void onClick(View v) {
Toast.makeText(getActivity(), "Clicked" ,Toast.LENGTH_LONG).show();
}
}
activity_main.xml
<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="#FFF5EE"
>
<!-- The main content view -->
<FrameLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
</FrameLayout>
<!-- The navigation drawer -->
<ListView android:id="#+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="left"
android:choiceMode="singleChoice"
android:divider="#android:color/transparent"
android:dividerHeight="0dp"
android:background="#858585"/>
</android.support.v4.widget.DrawerLayout>
order_fragment.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="#+id/send"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/send"
/>
</LinearLayout>
logCat:
07-08 12:28:09.332: D/dalvikvm(30471): GC_FOR_ALLOC freed 165K, 2% free 16940K/17136K, paused 15ms, total 15ms
07-08 12:28:09.362: I/dalvikvm-heap(30471): Grow heap (frag case) to 35.315MB for 19655120-byte allocation
07-08 12:28:09.372: D/dalvikvm(30471): GC_FOR_ALLOC freed 2K, 1% free 36132K/36332K, paused 11ms, total 11ms
07-08 12:28:09.522: I/Adreno-EGL(30471): <qeglDrvAPI_eglInitialize:320>: EGL 1.4 QUALCOMM Build: I0404c4692afb8623f95c43aeb6d5e13ed4b30ddbDate: 11/06/13
07-08 12:28:09.542: D/OpenGLRenderer(30471): Enabling debug mode 0
07-08 12:28:11.852: D/AndroidRuntime(30471): Shutting down VM
07-08 12:28:11.852: W/dalvikvm(30471): threadid=1: thread exiting with uncaught exception (group=0x41625ba8)
07-08 12:28:11.862: E/AndroidRuntime(30471): FATAL EXCEPTION: main
07-08 12:28:11.862: E/AndroidRuntime(30471): Process: com.example.testcocogeek, PID: 30471
07-08 12:28:11.862: E/AndroidRuntime(30471): java.lang.NullPointerException
07-08 12:28:11.862: E/AndroidRuntime(30471): at com.example.testcocogeek.OrderFragment.onCreateView(OrderFragment.java:29)
07-08 12:28:11.862: E/AndroidRuntime(30471): at android.app.Fragment.performCreateView(Fragment.java:1700)
07-08 12:28:11.862: E/AndroidRuntime(30471): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:890)
07-08 12:28:11.862: E/AndroidRuntime(30471): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1062)
07-08 12:28:11.862: E/AndroidRuntime(30471): at android.app.BackStackRecord.run(BackStackRecord.java:684)
07-08 12:28:11.862: E/AndroidRuntime(30471): at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1447)
07-08 12:28:11.862: E/AndroidRuntime(30471): at android.app.FragmentManagerImpl$1.run(FragmentManager.java:443)
07-08 12:28:11.862: E/AndroidRuntime(30471): at android.os.Handler.handleCallback(Handler.java:733)
07-08 12:28:11.862: E/AndroidRuntime(30471): at android.os.Handler.dispatchMessage(Handler.java:95)
07-08 12:28:11.862: E/AndroidRuntime(30471): at android.os.Looper.loop(Looper.java:136)
07-08 12:28:11.862: E/AndroidRuntime(30471): at android.app.ActivityThread.main(ActivityThread.java:5001)
07-08 12:28:11.862: E/AndroidRuntime(30471): at java.lang.reflect.Method.invokeNative(Native Method)
07-08 12:28:11.862: E/AndroidRuntime(30471): at java.lang.reflect.Method.invoke(Method.java:515)
07-08 12:28:11.862: E/AndroidRuntime(30471): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
07-08 12:28:11.862: E/AndroidRuntime(30471): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
07-08 12:28:11.862: E/AndroidRuntime(30471): at dalvik.system.NativeStart.main(Native Method)
07-08 12:28:13.332: I/Process(30471): Sending signal. PID: 30471 SIG: 9

At first sight you should replace:
final Button send = (Button) getActivity().findViewById(R.id.send);
with:
final Button send = (Button) mView.findViewById(R.id.send);
R.id.send id is contained in the Fragment view mView.

My activity is crashing after adding a listener

I have this code in my MainActivity class:
public class MainActivity extends ActionBarActivity {
Button mButton;
EditText mEdit;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mButton = (Button)findViewById(R.id.btnAsk);
mEdit = (EditText)findViewById(R.id.txtQuestion);
mButton.setOnClickListener(
new View.OnClickListener()
{
public void onClick(View view)
{
Toast.makeText(getApplicationContext(),
mEdit.getText().toString(), Toast.LENGTH_SHORT).show();
}
});
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#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();
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 {
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
return rootView;
}
}
}
Everything was just fine, but after adding setOnClickListener() to mButton it started crashing at the very beginning.
Here is the error log:
04-26 14:12:26.255: E/AndroidRuntime(1447): FATAL EXCEPTION: main
04-26 14:12:26.255: E/AndroidRuntime(1447): Process: com.gelasoft.answeringball, PID: 1447
04-26 14:12:26.255: E/AndroidRuntime(1447): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.gelasoft.answeringball/com.gelasoft.answeringball.MainActivity}: java.lang.NullPointerException
04-26 14:12:26.255: E/AndroidRuntime(1447): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
04-26 14:12:26.255: E/AndroidRuntime(1447): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
04-26 14:12:26.255: E/AndroidRuntime(1447): at android.app.ActivityThread.access$800(ActivityThread.java:135)
04-26 14:12:26.255: E/AndroidRuntime(1447): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
04-26 14:12:26.255: E/AndroidRuntime(1447): at android.os.Handler.dispatchMessage(Handler.java:102)
04-26 14:12:26.255: E/AndroidRuntime(1447): at android.os.Looper.loop(Looper.java:136)
04-26 14:12:26.255: E/AndroidRuntime(1447): at android.app.ActivityThread.main(ActivityThread.java:5017)
04-26 14:12:26.255: E/AndroidRuntime(1447): at java.lang.reflect.Method.invokeNative(Native Method)
04-26 14:12:26.255: E/AndroidRuntime(1447): at java.lang.reflect.Method.invoke(Method.java:515)
04-26 14:12:26.255: E/AndroidRuntime(1447): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
04-26 14:12:26.255: E/AndroidRuntime(1447): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
04-26 14:12:26.255: E/AndroidRuntime(1447): at dalvik.system.NativeStart.main(Native Method)
04-26 14:12:26.255: E/AndroidRuntime(1447): Caused by: java.lang.NullPointerException
04-26 14:12:26.255: E/AndroidRuntime(1447): at com.gelasoft.answeringball.MainActivity.onCreate(MainActivity.java:30)
04-26 14:12:26.255: E/AndroidRuntime(1447): at android.app.Activity.performCreate(Activity.java:5231)
04-26 14:12:26.255: E/AndroidRuntime(1447): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
04-26 14:12:26.255: E/AndroidRuntime(1447): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
04-26 14:12:26.255: E/AndroidRuntime(1447): ... 11 more
What am I missing here? I know that it is something really small, but I can't spot it right now.
P.S Here is my fragment xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.xx.ss.MainActivity$PlaceholderFragment" >
<ImageView
android:id="#+id/sphereIcon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:contentDescription="#string/magicBallDescr"
android:src="#drawable/ic_launcher" />
<LinearLayout
android:id="#+id/table"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/sphereIcon"
android:orientation="vertical" >
<TextView
android:id="#+id/txtAnswer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<EditText
android:id="#+id/txtQuestion"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="#string/textHint"
android:inputType="textMultiLine"
android:lines="8"
/>
<Button
android:id="#+id/btnAsk"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/btnAskQ"
android:paddingEnd="#dimen/activity_vertical_margin"
/>
</LinearLayout>
</RelativeLayout>

Replace
mButton = (Button)findViewById(R.id.btnAsk);
with
mButton = (Button)rootView.findViewById(R.id.btnAsk); // this will go in Fragment onCreateView
And move setOnClicklistener code as well to onCreateView.
Hope it helps.

Move this code :
mButton.setOnClickListener(
new View.OnClickListener()
{
public void onClick(View view)
{
Toast.makeText(getApplicationContext(),
mEdit.getText().toString(), Toast.LENGTH_SHORT).show();
}
});
into your fragment's onCreateView() method. It should work then.