I'm using TabLayout
with two nested Fragments and I have noticed that when user clicks the other Tab, while the content changes immediately, the indicator move from the first Tab to the second takes literally 3-4 seconds.
I have the same behavior in any device I have so far tried the app (not only genymotion). Nexus 4 and Nexus 5X are some of the testing devices.
The layout is :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:EMVideoView="http://schemas.android.com/apk/res-auto"
android:background="@color/white"
android:clickable="true"
android:layout_width="match_parent" android:layout_height="match_parent">
<com.devbrackets.android.exomedia.EMVideoView
android:id="@+id/video_play_activity_video_view"
android:layout_width="match_parent" android:layout_height="360dp"
EMVideoView:defaultControlsEnabled="true"/>
<android.support.design.widget.TabLayout
android:id="@+id/nested_tabs" android:layout_below="@+id/video_play_activity_video_view"
android:layout_width="match_parent" android:layout_height="?attr/actionBarSize"
app:tabMode="fixed" app:tabGravity="fill"/>
<FrameLayout android:id="@+id/fl_nested_tabs_container" android:layout_below="@+id/nested_tabs"
android:layout_width="match_parent" android:layout_height="wrap_content"/>
and the code where I change tabs :
@Override
public void onTabSelected(TabLayout.Tab tab) {
if (isCommentsFragmentSelected) {
isCommentsFragmentSelected = false;
getChildFragmentManager()
.beginTransaction()
.replace(R.id.fl_nested_tabs_container, PollsFragment.newInstance())
.commit();
} else {
isCommentsFragmentSelected = true;
getChildFragmentManager()
.beginTransaction()
.replace(R.id.fl_nested_tabs_container, CommentsFragment.newInstance())
.commit();
}
}
在清单文件中的应用程序标签下使用此属性。
android:hardwareAccelerated="true"
I was also using nested fragments in a three tab layout with a ViewPager. Setting the offscreen page limit solved the slow loading problem for me.
viewPager.setOffscreenPageLimit(2);
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