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Appcompatv7 - v21导航抽屉不显示汉堡图标

androidandroid-layoutandroid-support-libraryandroid-navigation
102

我正在使用最新的AppCompat支持库实现棒棒糖风格的导航抽屉，但问题是汉堡图标从未显示。只显示返回图标。

这是我的活动代码

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); 

 }
}

这是我的样式文件

 <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>

布局文件

<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>

导航抽屉显示返回按钮

导航抽屉显示返回按钮

两种情况下都只显示了返回箭头，我已经阅读了许多帖子，但似乎没有什么区别。表示感谢的任何帮助。

13个回答
2
你可以在Activity的onPostCreate中调用syncState()方法，以便在onRestoreInstanceState之后将指示器与链接的DrawerLayout的状态同步。
@Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        // Sync the toggle state after onRestoreInstanceState has occurred.
        mDrawerToggle.syncState();
    }

此外，ActionBarDrawerToggle也可以直接用作 DrawerLayout.DrawerListener。如果您已经提供了自己的监听器，请从自己的监听器调用每个监听器方法。
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
  .
  .
  .
  .
mDrawerLayout.setDrawerListener(mDrawerToggle);

    mDrawerLayout.post(new Runnable() {
        @Override
        public void run() {
            mDrawerToggle.syncState();
        }
    });
1
这对我有用。我扩展了AppCompatActivity而不是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();

    }
};
1

当点击操作栏菜单时，导航抽屉未显示。这对我有用。

   @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }
      //add your switch statement


        return super.onOptionsItemSelected(item);
    }
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