I am implementing the lollipop style navigation drawer with latest appcompat support library but the problem is the hamburger icon is never displayed . Only back icon is shown.
This is my activity code
import android.os.Bundle;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.widget.Toolbar;
import android.view.View;
public class Home extends ActionBarActivity {
private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle mDrawerToggle;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
initViews();
}
private void initViews(){
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
toolbar.setTitleTextColor(getResources().getColor(android.R.color.white));
setSupportActionBar(toolbar);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,toolbar , R.string.drawer_open, R.string.drawer_close) {
/** Called when a drawer has settled in a completely closed state. */
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
//getActionBar().setTitle(mTitle);
//invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
/** Called when a drawer has settled in a completely open state. */
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
//getActionBar().setTitle(mDrawerTitle);
//invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
};
// Set the drawer toggle as the DrawerListener
mDrawerLayout.setDrawerListener(mDrawerToggle);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
}
}
This is my styles file
<resources>
<!-- Application theme. -->
<style name="Theme.Test" parent="@style/Theme.AppCompat.Light">
<!-- customize the color palette -->
<item name="colorPrimary">@color/primary</item>
<item name="colorPrimaryDark">@color/primary_dark</item>
<item name="colorAccent">@color/accent</item>
<item name="windowActionBar">false</item>
<item name="drawerArrowStyle">@style/Theme.Test.DrawerArrowStyle</item>
</style>
<style name="Theme.Test.DrawerArrowStyle" parent="@style/Widget.AppCompat.DrawerArrowToggle">
<item name="spinBars">true</item>
<item name="color">@android:color/white</item>
</style>
The layout file
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:theme="@style/ThemeOverlay.AppCompat.ActionBar" />
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/toolbar">
<!-- The main content view -->
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- The navigation drawer -->
<ListView
android:id="@+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#111"
android:choiceMode="singleChoice"
android:divider="@android:color/transparent"
android:dividerHeight="0dp" />
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>
In both cases only back arrow is shown , i have read many posts but nothing seems to make a difference . Any help would be appreciated.
You need to call
mDrawerToggle.syncState();
Make sure that you're importing the correct drawer toggle.
When I imported the v4 version I had the arrow (below).
import android.support.v4.app.ActionBarDrawerToggle;
Changing it to this (below, v7) fixed my issue.
import android.support.v7.app.ActionBarDrawerToggle;
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 toggls
mDrawerToggle.onConfigurationChanged(newConfig);
}
Make sure that you call
mDrawerToggle.syncState();
AFTER calling
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
Since my NavigationDrawer was extending a Fragment not an Activity I was not able to override postCreate. The below is what I did.
ActionBar actionBar = getActionBar();
actionBar.setDisplayHomeAsUpEnabled(true); // this sets the button to the back icon
actionBar.setHomeButtonEnabled(true); // makes it clickable
actionBar.setHomeAsUpIndicator(R.drawable.ic_drawer);// set your own icon
Hope it helps!
Dont forget to override onOptionsItemSelected method and check if ctionBarDrawerToggle was clicked, in this case return true otherwise the activity will be finished.
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (actionBarDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
You can simply use this:
// Defer code dependent on restoration of previous instance state.
mDrawerLayout.post(new Runnable() {
@Override
public void run() {
mDrawerToggle.syncState();
getActionBar().setHomeAsUpIndicator(R.drawable.ic_drawer);
}
});
mDrawerToggle.syncState() did not work for me, but I eventually got it to work with:
getSupportActionBar().setHomeAsUpIndicator(R.drawable.hamburger_icon);
I was, however, not using a Toolbar.
While including ActionBarDrawerToggle, make sure to use the post method:
mDrawerLayout.post(new Runnable() {
@Override
public void run() {
mDrawerToggle.syncState();
}
});
I also got similar problem, in my case problem was, when initiating actionbartoggle, I was not passing valid toolbar argument (toolbar was initialized later), without a proper, non-null toolbar, ActionBarToggle will fail to create a hamburger icon.
actionBarToggle = ActionBarDrawerToggle(this, mDrawer, toolbar,
R.string.drawer_open, R.string.drawer_close);
you can call syncState() from your Activity's onPostCreate to synchronize the indicator with the state of the linked DrawerLayout after onRestoreInstanceState has occurred.
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
Also ActionBarDrawerToggle can be used directly as a DrawerLayout.DrawerListener, or if you are already providing your own listener, call through to each of the listener methods from your own.
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
.
.
.
.
mDrawerLayout.setDrawerListener(mDrawerToggle);
mDrawerLayout.post(new Runnable() {
@Override
public void run() {
mDrawerToggle.syncState();
}
});
Navigation drawer was not showing when clicking action bar menu. This fixed it for me.
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
//add your switch statement
return super.onOptionsItemSelected(item);
}
This works for me. I have extended AppCompatActivity instead of ActionBarActivity.
mActionBarDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,null, R.string.drawer_opened, R.string.drawer_closed) {
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
if( getSupportActionBar()!= null)
getSupportActionBar().setTitle(R.string.drawer_opened);
mActionBarDrawerToggle.syncState();
}
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
if(getSupportActionBar() != null)
getSupportActionBar().setTitle(R.string.drawer_closed);
mActionBarDrawerToggle.syncState();
}
};
来源：https://stackoverflow.com/questions/26754940/appcompatv7-v21-navigation-drawer-not-showing-hamburger-icon