我正在尝试在我的应用程序中添加导航抽屉..一切正常但现在我仍然有箭头图标,虽然我用Android的ic_drawer替换它?这是我的代码:
private ActionBarDrawerToggle mDrawerToggle;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
DrawerLayout mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
ExpandableListView mDrawerList = (ExpandableListView) findViewById(R.id.left_drawer);
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow,
GravityCompat.START);
mDrawerList.setAdapter(new DrawerListAdapter(this));
mDrawerList.setOnChildClickListener(new DrawerItemClickListener());
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_launcher, R.string.drawer_open,
R.string.drawer_close);
Log.d("Mudit",
"mDrawerToggle" + mDrawerToggle.isDrawerIndicatorEnabled()); // returns true
mDrawerLayout.setDrawerListener(mDrawerToggle);
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
getActionBar().setDisplayShowHomeEnabled(false);
}
/**
* When using the ActionBarDrawerToggle, you must call it during
* onPostCreate() and onConfigurationChanged()...
*/
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
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" >
<ScrollView
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
<ExpandableListView
android:id="@+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#ffffff"
android:dividerHeight="0dp" />
</android.support.v4.widget.DrawerLayout>
我在网上查看了各种代码示例,但所有代码都在做同样的事情。我不知道为什么它不适合我。
请帮忙。
答案 0 :(得分:22)
你必须使用
getActionBar().setDisplayShowHomeEnabled(true);
而不是
getActionBar().setDisplayShowHomeEnabled(false);
干杯,
菲利克斯
编辑:以下是如何通过XML隐藏图标:
将它添加到你的styles.xml :(如果你使用黑暗的动作栏,用android替换android:Widget.Holo.Light.ActionBar.Solid:Widget.Holo.ActionBar.Solid。)
<style name="ActionBarStyle" parent="android:Widget.Holo.Light.ActionBar.Solid">
<item name="android:icon">@android:color/transparent</item>
</style>
然后将其添加到您在AndroidManifest.xml中定义的主题(标准是/res/values-v11/styles.xml中的AppBaseTheme - AppBaseTheme:
<item name="android:actionBarStyle">@style/ActionBarStyle</item>
希望这有帮助!
答案 1 :(得分:22)
试试这段代码
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
actbardrawertoggle.syncState();
}
答案 2 :(得分:1)
只需在showGlobalContextActionBar()方法中添加以下行(NavigationDrawerFragment.java类)
actionBar.setHomeAsUpIndicator(R.drawable.ic_action_menu);
代码段:
private void showGlobalContextActionBar() {
ActionBar actionBar = getActionBar();
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setHomeAsUpIndicator(R.drawable.ic_action_menu);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
actionBar.setTitle(R.string.app_name);
}
答案 3 :(得分:1)
当我想从后箭头取回菜单图标时,这对我有用
*