我正在开发一个带有碎片抽屉布局的应用程序。 还有一个文本视图，说明了抽屉里的注销。
问题是注销最初效果很好。但是当我切换到不同的活动并返回到之前的活动然后打开抽屉时，注销变得无法点击，因为抽屉下面的内容被点击而不是注销。
抽屉布局的基本代码是
public class MainActivity extends ActionBarActivity {
private DrawerLayout mDrawerLayout;
private LinearLayout drawer_linear;
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;
public static final String TAG = "FeedTag";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
drawer_linear = (LinearLayout) findViewById(R.id.drawer_linear);
findViewById(R.id.sign_out_button).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//Do Something
}
});
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>();
// adding nav drawer items to array
navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1), true, String.valueOf(unreadCount)));
navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1)));
navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));
navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(5, -1)));
navDrawerItems.add(new NavDrawerItem(navMenuTitles[6], navMenuIcons.getResourceId(6, -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);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
getSupportActionBar().setIcon(R.drawable.ic_launcher);
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);
invalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
// on first time display view for first nav item
displayView(0);
mDrawerLayout.openDrawer(drawer_linear);
}
getSupportActionBar().setTitle(mDrawerTitle);
}
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.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// toggle nav drawer on selecting action bar app icon/title
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle action bar actions click
switch (item.getItemId()) {
case R.id.action_settings:
return true;
default:
return super.onOptionsItemSelected(item);
}
}
/* *
* Called when invalidateOptionsMenu() is triggered
*/
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
// if nav drawer is opened, hide the action items
boolean drawerOpen = mDrawerLayout.isDrawerOpen(drawer_linear);
menu.findItem(R.id.action_settings).setVisible(!drawerOpen);
try {
if(((Fragment)getSupportFragmentManager().findFragmentByTag("TimeTableFragment")).isVisible() && !drawerOpen) {
menu.setGroupVisible(R.id.group_action_refresh, true);
menu.findItem(R.id.action_remind).setVisible(true);
}
}
catch (Exception e) {
}
return super.onPrepareOptionsMenu(menu);
}
/**
* Diplaying fragment view for selected nav drawer list item
* */
private void displayView(int position) {
// update the main content by replacing fragments
Fragment fragment = null;
String tag = "";
switch (position) {
case 0:
fragment = new Fragment1();
tag = "Fragment1";
break;
case 1:
fragment = new Fragment2();
tag = "Fragment2";
break;
case 2:
fragment = new Fragment3();
tag = "Fragment3";
break;
case 3:
fragment = new Fragment4();
tag = "Fragment4";
break;
case 4:
fragment = new Fragment5();
tag = "Fragment5";
break;
case 5:
fragment = new Fragment6();
tag = "Fragment6";
break;
case 6:
fragment = new Fragment7();
tag = "Fragment7";
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.replace(R.id.frame_container, fragment, tag);
transaction.commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
//mDrawerLayout.closeDrawer(mDrawerList);
mDrawerLayout.closeDrawer(drawer_linear);
} else {
// error in creating fragment
Log.e("MainActivity", "Error in creating fragment");
}
}
@Override
public void setTitle(CharSequence title) {
mTitle = title;
}
/**
* 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);
}
xml是
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="match_parent"
android:layout_width="match_parent">
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- Framelayout to display Fragments -->
<FrameLayout
android:id="@+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- Listview to display slider menu -->
<LinearLayout
android:layout_width="220dp"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/drawer_linear"
android:layout_gravity="start"
android:background="@color/list_background">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="150dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:id="@+id/userEmail"
android:textColor="#ffffff"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"
android:layout_marginBottom="5dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/userEmail"
android:id="@+id/userName"
android:textColor="#ffffff"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/abc_ic_clear_mtrl_alpha"
android:id="@+id/sign_out_button"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"/>
</RelativeLayout>
<ListView
android:id="@+id/list_slidermenu"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:divider="@null"
android:dividerHeight="0dp"
android:listSelector="@drawable/list_selector"/>
</LinearLayout>
</android.support.v4.widget.DrawerLayout>