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我面临这个问题，其中MainActivity内有3个Tabs，每个Tab包含一个片段。当我点击抽屉下的一个项目来开始一个新的片段时，它会在MainActivity的Tabs视图中重叠。下面是我的代码：Android：在MainActivity下包含Tabs的多个片段的重叠问题
Fragment currentFragment;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
@Nullable Bundle savedInstanceState) {
viewInflate = inflater.inflate(R.layout.fragment_city, container, false);
return viewInflate;
}
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
Intent i;
int id = item.getItemId();
if (id == R.id.nav_home) {
TabLayout tl = (TabLayout) findViewById(R.id.main_tabs);
tl.setVisibility(View.VISIBLE);
showFragment(new HomeFragment());
setTitle(R.string.app_name);
}
if (id == R.id.nav_about_us) {
TabLayout tl = (TabLayout) findViewById(R.id.main_tabs);
tl.setVisibility(View.GONE);
showFragment(new AboutUsFragment());
setTitle(R.string.about_us);
}
if (id == R.id.nav_favorites) {
TabLayout tl = (TabLayout) findViewById(R.id.main_tabs);
tl.setVisibility(View.GONE);
showFragment(new FavoritesFragment());
setTitle(R.string.favorites);
}
if (id == R.id.nav_settings) {
i = new Intent(this, SettingsActivity.class);
startActivity(i);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
public void showFragment(Fragment fragment) {
if (currentFragment != null && fragment.getClass().equals(currentFragment.getClass()))
return;
currentFragment = fragment;
FragmentManager fragmentManager = this.getSupportFragmentManager();
if (fragmentManager == null)
return;
FragmentTransaction ft = fragmentManager.beginTransaction();
if (ft == null)
return;
ft.replace(R.id.content_frame, fragment).commitAllowingStateLoss();
}
下面是fragment_city.xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/content_background"
tools:context="com.creationjunkies.fragments.CityFragment">
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/swipe_refresh"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<android.support.v7.widget.RecyclerView
android:id="@+id/cityBargainsRecyclerView"
android:scrollbars="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</android.support.v4.widget.SwipeRefreshLayout>
</RelativeLayout>
</FrameLayout>
的XML代码和activity_main.xml中的代码是：
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
android:background="@color/content_background"
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:fitsSystemWindows="true"
tools:openDrawer="start"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.creationjunkies.cities.MainActivity">
<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">
<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"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay">
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="@+id/main_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.design.widget.AppBarLayout>
<LinearLayout
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"
app:layout_behavior="android.support.design.widget.AppBarLayout$ScrollingViewBehavior"
android:orientation="vertical">
<FrameLayout
android:id="@+id/frameTopAds"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</FrameLayout>
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1">
<android.support.v4.view.ViewPager
android:id="@+id/tab_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="android.support.design.widget.AppBarLayout$ScrollingViewBehavior" />
</FrameLayout>
<FrameLayout
android:id="@+id/frameAds"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</FrameLayout>
</LinearLayout>
</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>
你的帮助深表感谢！
您可以加入您的活动XML布局？ –
@MuthukrishnanRajendran我已经添加了XML布局代码。谢谢！ –