I have a problem when resuming my application. I can create my activity just fine but for some reason when I put my app in the background, wait a few minutes, then have it come back to the foreround DrawerLayout, is always null. The first time when I load my application it seems to work fine but I can't seem to figure out what is going wrong when I re-create the activity from the background. Here is my code:
MainActivity.Java:
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
//Listen for navigation events
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){
public void onDrawerOpened(View view) {
super.onDrawerOpened(view);
...
}
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
...
}
System.out.println("Toolbar: " + toolbar);
System.out.println("Drawer: " + drawer);
System.out.println("Toggle: " + toggle);
drawer.setDrawerListener(toggle);
toggle.syncState();
}
activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools" android:id="#+id/drawer_layout"
android:layout_width="match_parent" android:layout_height="match_parent"
android:fitsSystemWindows="true" tools:openDrawer="start">
<include layout="#layout/app_bar_news_feed" android:layout_width="match_parent"
android:layout_height="match_parent" android:id="#+id/app_bar_main" />
<include layout="#layout/include_progress_overlay"/>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<include
layout="#layout/nav_header_friends_list"
android:id="#+id/navigation_header"/>
<ListView
android:id="#+id/friends_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"></ListView>
</LinearLayout>
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
The first time the application loads, I can successfully print out an object when I print out "Drawer: ", but when I set it to the background then have it come back to the foreground after a few minutes, it seems to print out null and I have no idea why. Any help would be appreciated. Thanks!
You would have to Re-Inflate your XML layout like this.
Try this so this is 2 lines, replace your setContentView
First get the View Group
ViewGroup container = (ViewGroup)view.getParent();
Now we need to Inflate your XML
setContentView(View.inflate(getApplicationContext(),R.layout.yourlayout,container));
Related
I used a Android Studio Template for Side menu drawer.
Problem : I want the whole drawer to appear on right.
Progress : I can change the android:layout_gravity to "end" for drawer layout, but i cannot move the three-line-icon (also called shelf, burger or Navigation Drawer icon) in ActionBar to the right side.
Visual source to maybe provide better understanding of my problem:
Here comes the code :
Drawer activity (Lecture_graph.java) :
public class Lectures_graph extends AppCompatActivity implements course_list.OnFragmentInteractionListener, lectures_graph.OnFragmentInteractionListener{
private AppBarConfiguration mAppBarConfiguration;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_lectures_graph);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = findViewById(R.id.drawer_layout);
NavigationView navigationView = findViewById(R.id.nav_view);
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
mAppBarConfiguration = new AppBarConfiguration.Builder(
R.id.nav_course_list, R.id.nav_lectures_greph)
.setDrawerLayout(drawer)
.build();
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration);
NavigationUI.setupWithNavController(navigationView, navController);
}
#Override
public boolean onSupportNavigateUp() {
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
return NavigationUI.navigateUp(navController, mAppBarConfiguration)
|| super.onSupportNavigateUp();
}
#Override
public void onFragmentInteraction(Uri uri) {
}
}
XML for this activity (activity_lecture_graph.xml) :
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
//this lets drawer to be on right
tools:openDrawer="end">
<include
layout="#layout/app_bar_lectures_graph"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<com.google.android.material.navigation.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#fff"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_lectures_graph"
app:menu="#menu/activity_lectures_graph_drawer"
//this allows drawer to be on right
android:layout_gravity="end" />
</androidx.drawerlayout.widget.DrawerLayout>
app bar layout (app_bar_lectures_graph.xml) :
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".systems.lectures.Lectures_graph">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</com.google.android.material.appbar.AppBarLayout>
<include layout="#layout/content_lectures_graph" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
Drawer xml (activity_lectures_graph_drawer.xml) :
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".systems.lectures.Lectures_graph">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</com.google.android.material.appbar.AppBarLayout>
<include layout="#layout/content_lectures_graph" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
Will be thankful for any help.
you can use ActionBarDrawerToggle.
try this (kotlin) :
val toggle = ActionBarDrawerToggle(
this, drawer_layout, toolbar,
R.string.navigation_drawer_open,
R.string.navigation_drawer_close
)
toggle.isDrawerIndicatorEnabled = false
toggle.setHomeAsUpIndicator(R.drawable.ic_menu_black_24dp)
toggle.setToolbarNavigationClickListener {
if (drawer .isDrawerVisible(GravityCompat.START)) {
drawer .closeDrawer(GravityCompat.START)
} else {
drawer .openDrawer(GravityCompat.START)
}
}
drawer .addDrawerListener(toggle)
toggle.syncState()
for (Java)
Toolbar toolbar = findViewById(R.id.toolbar);
DrawerLayout drawer = findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar,
R.string.navigation_drawer_open,
R.string.navigation_drawer_close
);
toggle.setDrawerIndicatorEnabled(false);
toggle.setHomeAsUpIndicator(R.drawable.ic_menu_black_24dp);
toggle.setToolbarNavigationClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (drawer .isDrawerVisible(GravityCompat.START)) {
drawer .closeDrawer(GravityCompat.START);
} else {
drawer .openDrawer(GravityCompat.START);
}
}
});
drawer .addDrawerListener(toggle);
toggle.syncState();
This question already has answers here:
Clicking hamburger icon on Toolbar does not open Navigation Drawer
(1 answer)
on clicking hamburger icon navigation drawer not opening
(2 answers)
Closed 3 years ago.
The drew the red line to show where the orange line should keep going.
After searching similar questions, I could not find a way to solve my problem.
I have a toggle button that shows in my Activity but when I press it, it doesn't open the navigation drawer (if I slide my finger it opens).
*The toggle button shows in the activity (the toolbar is transparent)
OnCreate and onOptionsItemSelect
ActionBarDrawerToggle toggle;
DrawerLayout drawer;
NavigationView navigationView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = findViewById(R.id.my_toolbar);
setSupportActionBar(toolbar);
drawer = findViewById(R.id.drawer_layout);
toggle = new ActionBarDrawerToggle
(
this,
drawer,
R.string.navigation_drawer_open,
R.string.navigation_drawer_close
)
{
};
drawer.addDrawerListener(toggle);
toggle.syncState();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setTitle("");
toggle.getDrawerArrowDrawable().setColor(getResources().getColor(R.color.colorPrimaryDark));
FloatingActionButton fab = findViewById(R.id.action_btn);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(getApplicationContext(), NewEventActivity.class);
startActivity(intent);
/*Intent intent = new Intent(getApplicationContext(), testes.class);
startActivity(intent);*/
}
});
navigationView = findViewById(R.id.navigation_view);
navigationView.setNavigationItemSelectedListener(this);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if(toggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
XML code:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:id="#+id/drawer_layout">
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.Toolbar
android:id="#+id/my_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:title=""
android:theme="#style/ThemeOverlay.AppCompat.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
</RelativeLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:id="#+id/wrapper_layout">
</LinearLayout>
</RelativeLayout>
<android.support.design.widget.FloatingActionButton
android:id="#+id/action_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
android:backgroundTint="#FE7D4B"
app:srcCompat="#drawable/ic_add" />
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
app:menu="#menu/drawer_menu"
android:layout_gravity="start"
android:id="#+id/navigation_view"
>
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
trying to figure out how to show the app bar and nav drawer in an inflated view.
i was using the basic method that came pre installed when i started my app. so it all ran from my main activity using contentmain.xml
but i now have to differnt views i use on my main activity. when they inflate i still want to be able to use the app bar and nav drawer. So ive made my own nav drawer xml called nav
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.harrops.h20droidapp2.MainActivity"
android:id="#+id/main"
style="#style/AppBarOverlay">
<android.support.v4.widget.DrawerLayout
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/drawer_layout"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="#layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/appbar"
/>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
and a seperate app_bar_main.xml
RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:id="#+id/maintoolbar">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/colorPrimary"
app:popupTheme="#style/PopupOverlay"
app:title="H20 Droid App "
/>
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/frame"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"></FrameLayout>
and im trying to get it to show by
sharedpreferences = PreferenceManager.getDefaultSharedPreferences(this);
boolean layout_alt = sharedpreferences.getBoolean("alt_layout",false);
if (layout_alt==true){
loadVideoAdvert();
LayoutInflater layoutInflater = (LayoutInflater) MainActivity.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(R.layout.main_alt, null);
RelativeLayout rl = (RelativeLayout)findViewById(R.id.rlmain);
tb = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(tb);
View nav;
nav = layoutInflater.inflate(R.layout.nav,null);
DrawerLayout drawer = (DrawerLayout) nav.findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, tb, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView)nav. findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
mAdView = (AdView) view.findViewById(R.id.adView);
mAdView.setAdSize(AdSize.BANNER);
mAdView.setAdUnitId("myadviewid");
AdRequest adRequest = new AdRequest.Builder().build();
mAdView.loadAd(adRequest);
rl.addView(view);
thanks to arron this is my answer.
make an activity called base activity. then inside the xml place the drawer layout and toolbar
<android.support.v4.widget.DrawerLayout android:id="#+id/activity_container"
xmlns:tools="http://schemas.android.com/tools"
xmlns:ads="http://schemas.android.com/apk/res-auto"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start"
>
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?actionBarSize"
android:background="#color/colorPrimary"
app:popupTheme="#style/PopupOverlay"
/>
<FrameLayout
android:id="#+id/activity_content"
android:layout_width="match_parent"
android:layout_height="wrap_content">
/>
</FrameLayout>
</android.support.design.widget.AppBarLayout>
<android.support.design.widget.NavigationView
android:id="#+id/navigationView"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer"/>
then inside the baseactivity java place this
}
#Override
public void setContentView(int layoutResID)
{
/**
* This is going to be our actual root layout.
*/
fullLayout = (DrawerLayout) getLayoutInflater().inflate(R.layout.activity_base, null);
/**
* {#link FrameLayout} to inflate the child's view. We could also use a {#link android.view.ViewStub}
*/
FrameLayout activityContainer = (FrameLayout) fullLayout.findViewById(R.id.activity_content);
getLayoutInflater().inflate(layoutResID, activityContainer, true);
/**
* Note that we don't pass the child's layoutId to the parent,
* instead we pass it our inflated layout.
*/
super.setContentView(fullLayout);
toolbar = (Toolbar) findViewById(R.id.toolbar);
navigationView = (NavigationView) findViewById(R.id.navigationView);
if (useToolbar())
{
SharedPreferences sharedpreferences = PreferenceManager.getDefaultSharedPreferences(this);
boolean customBackground = sharedpreferences.getBoolean("customBackground",false);
if(customBackground==true){
toolbar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.altbuttonFocused)));
}
setSupportActionBar(toolbar);
}
else
{
toolbar.setVisibility(View.GONE);
}
setUpNavView();
}
/**
* Helper method that can be used by child classes to
* specify that they don't want a {#link Toolbar}
* #return true
*/
protected boolean useToolbar()
{
return true;
}
protected void setUpNavView()
{
navigationView.setNavigationItemSelectedListener(this);
if( useDrawerToggle()) { // use the hamburger menu
drawerToggle = new ActionBarDrawerToggle(this, fullLayout, toolbar,
R.string.nav_drawer_opened,
R.string.nav_drawer_closed);
fullLayout.setDrawerListener(drawerToggle);
drawerToggle.syncState();
} else if(useToolbar() && getSupportActionBar() != null) {
// Use home/back button instead
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
}
/**
* Helper method to allow child classes to opt-out of having the
* hamburger menu.
* #return
*/
protected boolean useDrawerToggle()
{
return true;
}
#Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
fullLayout.closeDrawer(GravityCompat.START);
selectedNavItemId = menuItem.getItemId();
return onOptionsItemSelected(menuItem);
}
#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.nav_settings){
startActivity(new Intent(this,SettingsActivity.class));
finish();
}
}
then in any activity i want to use toolbar and nav view i just extend BaseActivity
I apologize in beforehand for my bad code and bad knowledge. I have just recently started coding in Android and Java
My problem is that I have Navigation Drawer and Tabs. Although if I choose something from the navigation drawer which loads up in a Fragment it doesn't show. Only the tabs are showing.
My plan is that one navigation drawer tab shall have 3 tabs inside and the rest just normal pages without tabs.
MainActivity.java
http://pastebin.com/TV7aWy9c
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<FrameLayout
android:id="#+id/fragment_layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:background="#000000" />
<include
layout="#layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
app_bar_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="se.themeister.hello.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/toolbar"
android:background="?attr/colorPrimary"
android:elevation="6dp"
android:minHeight="?attr/actionBarSize"
android:theme="#style/AppTheme.AppBarOverlay"/>
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:background="#009900"
android:layout_below="#id/tab_layout"/>
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_main"/>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
android:src="#android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>
I don't know if that's enough or if more information or code is needed
The problem with your code is that your ViewPager with TabLayout should be part of the Fragment, not part of the Activity. And NavigationDrawer should just replace one fragment by another in the viewport (i.e. in the container). Now, in your code, you're trying to somehow insert your new Fragment into the ViewPager.
Here's a very basic app with Navigation Drawer, one Fragment with Tabs and rest fragments without tabs, which you can use as an example:
Activity.xml:
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/fragmentContainer"
android:layout_marginTop="?attr/actionBarSize"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
The code in the activity:
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
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);
getSupportFragmentManager().beginTransaction().replace(R.id.fragmentContainer, new FragmentWithTabs()).commit();
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.fragment_1) {
getSupportFragmentManager().beginTransaction().replace(R.id.fragmentContainer, new FragmentWithTabs()).commit();
} else if (id == R.id.fragment_2) {
getSupportFragmentManager().beginTransaction().replace(R.id.fragmentContainer, new FragmentWithoutTabs()).commit();
} else if (id == R.id.fragment_3) {
getSupportFragmentManager().beginTransaction().replace(R.id.fragmentContainer, new Fragment()).commit();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
I.e., as you see, I'm replacing fragments in the FrameLayout with id fragmentContainer.
All logic related to the fragment with tabs, incapsulated in FragmentWithTabs:
public class FragmentWithTabs extends Fragment {
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_with_tabs, container, false);
ViewPager viewPager = (ViewPager)rootView.findViewById(R.id.viewPager);
TabLayout tabLayout = (TabLayout)rootView.findViewById(R.id.tabLayout);
viewPager.setAdapter(new FragmentPagerAdapter(getChildFragmentManager()) {
#Override
public Fragment getItem(int position) {
return new SubFragment(position == 0? Color.BLUE : position == 1? Color.WHITE : Color.RED);
}
#Override
public CharSequence getPageTitle(int position) {
return position+"";
}
#Override
public int getCount() {
return 3;
}
});
tabLayout.setupWithViewPager(viewPager);
return rootView;
}
}
I hope, it helps
So I have an old application.
I wanted to add it a navigation drawer.
So I want the navigation drawer to work with my current activity and to show ONLY on the currecnt activity
public class WebViewActivity extends Activity {
So the main activity is a webView.
<?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">
<!--
main content
-->
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff" >
<WebView
android:id="#+id/webView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff" />
</RelativeLayout>
<!--
navigation list item
-->
<FrameLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<ListView
android:id="#+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="left"
android:background="#2A323D"
android:cacheColorHint="#00000000"
android:choiceMode="singleChoice" />
</android.support.v4.widget.DrawerLayout>
So I expect my drawer to appear when I click the menu button or my webView detect the gesture left to right
mTitle = mDrawerTitle = getTitle();
mPlanetTitles = getResources().getStringArray(R.array.planets_array);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
drawerView = (View)findViewById(R.id.left_drawer);
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);
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(mDrawerTitle);
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
mDrawerList.setAdapter(new ArrayAdapter<String>(this,
R.layout.drawer_list_item, mPlanetTitles));
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
// enable ActionBar app icon to behave as action to toggle nav drawer
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
AND
webView.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
x1 = event.getX();
break;
case MotionEvent.ACTION_UP:
x2 = event.getX();
float deltaX = x2 - x1;
if (Math.abs(deltaX) > MIN_DISTANCE) {
mDrawerLayout.openDrawer(GravityCompat.START);
return false;
} else {
// consider as something else - a screen tap for example
}
break;
}
return true;
}
});
I really don't know what am I missing, but mDrawerLayout.openDrawer(GravityCompat.START); is not doing anything.
There are no errors in the log.
The suppossed drawer does not show up, nothing happens.
I followed the official guide and more online. No luck.
I don't want to use Fragments!
UPDATE
The issue is that in my 'onCreate' I have something like:setContentView(webView);
So if I remove it, my navigation drawer works!
BUT my webView does not.
What am I missing?
Remove FrameLayout from your main_activity then try
<?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">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff" >
<WebView
android:id="#+id/webView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff" />
</RelativeLayout>
<ListView
android:id="#+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#2A323D"
android:cacheColorHint="#00000000"
android:choiceMode="singleChoice" />
</android.support.v4.widget.DrawerLayout>
Just copy and paste it
Your onCreate() must have setContentView(R.layout.drawer_layout);
where drawer_layout is the xml which has a DrawerLayout as its root view
Follow the documentation
Download sample code and see which xml is passed to setContentView()
If you follow it carefully you will notice activity_main.xml contains Drawerlayout and not the main content's xml.
Also keep in mind that DrawerLayout must contain exactly two child ViewGroups, where the first can be a fragment or FrameLayout that populates a fragment at runtime AND the second must be NavigationView
If you are still confused you can follow this guide which has step-by-step instructions. Its worth a visit.