YouTubePlayerSupportFragment无法在播放器顶部添加视图
我与YouTubePlayerSupportFragment进行了为期3天的努力，试图让它在一个滑动片段中运行。 它现在显示这个错误，我尝试了其他方法并得到NullPointerException 。 有没有可能将YouTubePlayerSupportFragment放入滑动片段？
java.lang.UnsupportedOperationException：无法在com.google.android.youtube.player.YouTubePlayerView.a（未知源代码）播放器的顶部添加视图com.google.android.youtube.player.YouTubePlayerView.addView（未知源）在android.support.v4.app.FragmentManagerImpl.moveToState（FragmentManager.java:1083）在android.support.v4.app.FragmentManagerImpl.moveToState（FragmentManager.java:1252）在android.support.v4.app.BackStackRecord .RUN（BackStackRecord.java:742）在android.support.v4.app.FragmentManagerImpl.execPendingActions（FragmentManager.java:1617）在android.support.v4.app.FragmentManagerImpl.executePendingTransactions（FragmentManager.java:570）在机器人。 support.v4.app.FragmentStatePagerAdapter.finishUpdate（FragmentStatePagerAdapter.java:164）at android.support.v4.view.ViewPager.populate（ViewPager.java:1177）at android.support.v4.view.ViewPager.populate（ViewPager。 java：1025）at android.support.v4.view.ViewPager.onMeasure（ViewPager.java:1545）at android.view.View.measure （View.java）在android.view.ViewGroup.measureChildWithMargins（ViewGroup.java）在android.widget.LinearLayout.measureChildBeforeLayout（LinearLayout.java）在android.widget.LinearLayout.measureVertical（LinearLayout.java）在android.widget.LinearLayout .onMeasure（LinearLayout.java）在android.view.ViewGroup.measureChildWithMargins（ViewGroup。）的android.view.View.measure（View.java）上的android.support.design.widget.AppBarLayout.onMeasure（AppBarLayout.java:199） java）在android.support.design.widget.CoordinatorLayout.onMeasureChild（CoordinatorLayout.java:668）在android.support.design.widget.CoordinatorLayout.onMeasure（CoordinatorLayout.java:735）在android.view.View.measure（查看.java）在android.view.View.measure（ViewGroup.java）上的android.view.View.measure（View.java）上的android.support.v4.widget.DrawerLayout.onMeasure（DrawerLayout.java:1075） .widget.FrameLayout.onMeasure（FrameLayout.java）at android.support.v7.widget.ContentFrameLayout.onMeasure（ContentFrameLay out.java:135）在android.view.View.measure（View.java）在android.view.ViewGroup.measureChildWithMargins（ViewGroup.java）在android.widget.LinearLayout.measureChildBeforeLayout（LinearLayout.java）在android.widget。 LinearLayout.measureVertical（LinearLayout.java）位于android.view.View.Group.measureChildWithMargins（ViewGroup.java）的android.view.View.measure（View.java）上的android.widget.LinearLayout.onMeasure（LinearLayout.java）。 widget.FrameLayout.onMeasure（FrameLayout.java）在android.view.View.measure（View.java）在android.view.ViewGroup.measureChildWithMargins（ViewGroup.java）在android.widget.LinearLayout.measureChildBeforeLayout（LinearLayout.java）在android.widget.LinearLayout.measureVertical（LinearLayout.java）在android.widget.LinearLayout.onMeasure（LinearLayout.java）在android.view.View.measure（View.java）在android.view.ViewGroup.measureChildWithMargins（ViewGroup.java ）at android.widget.FrameLayout.onMeasure（FrameLayout.java）at com.android.internal.policy.PhoneWindow $ D 在android.view.View.RootImpl.measureHierarchy（ViewRootImpl.java）上的android.view.ViewRootImpl.performMeasure（ViewRootImpl.java）android.view.View.measure（View.java）处的ecorView.onMeasure（PhoneWindow.java）。 view.ViewRootImpl.performTraversals（ViewRootImpl.java）在android.view.ViewRootImpl.doTraversal（ViewRootImpl.java）在android.view.ViewRootImpl $ TraversalRunnable.run（ViewRootImpl.java）在android.view.Choreographer $ CallbackRecord.run（编导.java）在android.view.Choreographer.doCallbacks（Choreographer.java）在android.view.Choreographer.doFrame（Choreographer.java）在android.view.Choreographer $ FrameDisplayEventReceiver.run（Choreographer.java）在android.os.Handler在android.os.Handler.dispatchMessage（Handler.java）上的android.os.Looper.loop（Looper.java）上android.app.ActivityThread.main（ActivityThread.java）上的.handleCallback（Handler.java） .reflect.Method.invoke（本地方法）
MainActivity.java：
import android.os.Bundle;
import android.support.design.widget.NavigationView;
import android.support.design.widget.TabLayout;
import android.support.v4.view.GravityCompat;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tab_layout);
tabLayout.addTab(tabLayout.newTab().setText("Tab 1"));
tabLayout.addTab(tabLayout.newTab().setText("Tab 2"));
tabLayout.addTab(tabLayout.newTab().setText("Tab 3"));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
final ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
final PagerAdapter adapter = new PagerAdapter
(getSupportFragmentManager(), tabLayout.getTabCount());
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
PagerAdapter.java：
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
public class PagerAdapter extends FragmentStatePagerAdapter {
int mNumOfTabs;
public PagerAdapter(FragmentManager fm, int NumOfTabs) {
super(fm);
this.mNumOfTabs = NumOfTabs;
}
@Override
public Fragment getItem(int position) {
switch (position) {
case 0:
TabFragment1 tab1 = new TabFragment1();
return tab1;
case 1:
TabFragment2 tab2 = new TabFragment2();
return tab2;
case 2:
TabFragment3 tab3 = new TabFragment3();
return tab3;
default:
return null;
}
}
@Override
public int getCount() {
return mNumOfTabs;
}
}
TabFragment1.java：
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.google.android.youtube.player.YouTubeInitializationResult;
import com.google.android.youtube.player.YouTubePlayer;
import com.google.android.youtube.player.YouTubePlayerSupportFragment;
public class TabFragment1 extends Fragment {
private String currentVideoID = "nCgQDjiotG0";
public static final String API_KEY = "XXX";
private YouTubePlayer YPlayer;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.tab_fragment_1, container, false);
YouTubePlayerSupportFragment youTubePlayerFragment = YouTubePlayerSupportFragment.newInstance();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.add(R.id.youTubePlayer, youTubePlayerFragment).commit();
youTubePlayerFragment.initialize(API_KEY, new YouTubePlayer.OnInitializedListener() {
@Override
public void onInitializationSuccess(YouTubePlayer.Provider arg0, YouTubePlayer youTubePlayer, boolean b) {
if (!b) {
YPlayer = youTubePlayer;
YPlayer.setFullscreen(true);
YPlayer.loadVideo("2zNSgSzhBfM");
YPlayer.play();
}
}
@Override
public void onInitializationFailure(YouTubePlayer.Provider arg0, YouTubeInitializationResult arg1) {
// TODO Auto-generated method stub
}
});
return rootView;
}
tab_fragment_1.xml：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<fragment
android:name="com.google.android.youtube.player.YouTubePlayerSupportFragment"
android:id="@+id/youTubePlayer"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</RelativeLayout>
尝试
transaction.replace(R.id.youTubePlayer, youTubePlayerFragment).commit();
在你的onCreateView或直接检索片段（你在你的布局中）使用
YouTubePlayerSupportFragment youTubePlayerFragment = getFragmentManager().findFragmentById(R.id.youTubePlayer);
首先，而不是
<fragment
android:name="com.google.android.youtube.player.YouTubePlayerSupportFragment"
android:id="@+id/youTubePlayer"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
使用FrameLayout
<FrameLayout
android:id="@+id/frame_fragment"
android:layout_width="match_parent"
android:layout_height="200dp"></FrameLayout>
然后在初始化之后使用
FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.replace(R.id.frame_fragment, youTubePlayerFragment);
transaction.commit();
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