问题
I have changed my dependencies to import com.android.support:appcompat-v7:23.0.1 and com.android.support:design:23.0.1 but it's not fix the error. The youtube Fragment show: "an Error occured while initializing the Youtube player"
E/YouTubeAndroidPlayerAPI: Error creating YouTubePlayerView com.google.android.youtube.player.internal.w$a: Exception thrown by invoked constructor in com.google.android.youtube.api.jar.client.RemoteEmbeddedPlayer at com.google.android.youtube.player.internal.w.a(Unknown Source) at com.google.android.youtube.player.internal.w.a(Unknown Source) at com.google.android.youtube.player.internal.w.a(Unknown Source) at com.google.android.youtube.player.internal.ac.a(Unknown Source) at com.google.android.youtube.player.YouTubePlayerView.a(Unknown Source) at com.google.android.youtube.player.YouTubePlayerView$1.a(Unknown Source) at com.google.android.youtube.player.internal.r.g(Unknown Source) at com.google.android.youtube.player.internal.r$c.a(Unknown Source) at com.google.android.youtube.player.internal.r$b.a(Unknown Source) at com.google.android.youtube.player.internal.r$a.handleMessage(Unknown Source) at android.os.Handler.dispatchMessage(Handler.java) at android.os.Looper.loop(Looper.java) at android.app.ActivityThread.main(ActivityThread.java) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java) Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Constructor.newInstance(Native Method) at com.google.android.youtube.player.internal.w.a(Unknown Source) at com.google.android.youtube.player.internal.w.a(Unknown Source) at com.google.android.youtube.player.internal.w.a(Unknown Source) at com.google.android.youtube.player.internal.ac.a(Unknown Source) at com.google.android.youtube.player.YouTubePlayerView.a(Unknown Source) at com.google.android.youtube.player.YouTubePlayerView$1.a(Unknown Source) at com.google.android.youtube.player.internal.r.g(Unknown Source) at com.google.android.youtube.player.internal.r$c.a(Unknown Source) at com.google.android.youtube.player.internal.r$b.a(Unknown Source) at com.google.android.youtube.player.internal.r$a.handleMessage(Unknown Source) at android.os.Handler.dispatchMessage(Handler.java) at android.os.Looper.loop(Looper.java) at android.app.ActivityThread.main(ActivityThread.java) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java) Caused by: java.lang.IllegalArgumentException: The concrete class implementing IObjectWrapper must have exactly one declared private field for the wrapped object. Preferably, this is an instance of the ObjectWrapper class. at vmh.a(SourceFile:76) at com.google.android.youtube.api.jar.client.RemoteEmbeddedPlayer.(SourceFile:147) at java.lang.reflect.Constructor.newInstance(Native Method) at com.google.android.youtube.player.internal.w.a(Unknown Source) at com.google.android.youtube.player.internal.w.a(Unknown Source) at com.google.android.youtube.player.internal.w.a(Unknown Source) at com.google.android.youtube.player.internal.ac.a(Unknown Source) at com.google.android.youtube.player.YouTubePlayerView.a(Unknown Source) at com.google.android.youtube.player.YouTubePlayerView$1.a(Unknown Source) at com.google.android.youtube.player.internal.r.g(Unknown Source) at com.google.android.youtube.player.internal.r$c.a(Unknown Source) at com.google.android.youtube.player.internal.r$b.a(Unknown Source) at com.google.android.youtube.player.internal.r$a.handleMessage(Unknown Source) at android.os.Handler.dispatchMessage(Handler.java) at android.os.Looper.loop(Looper.java) at android.app.ActivityThread.main(ActivityThread.java) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java)
Here is my build gradle:
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.1"
defaultConfig {
applicationId "vinchecks.wifi.info.karaokeviet2017"
minSdkVersion 14
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.0.1'
compile 'com.android.support:design:23.0.1'
compile project(':YouTubeAndroidPlayerApi')
}
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.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;
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 fragmentYoutubeView = inflater.inflate(R.layout.tab_fragment_1, container, false);
YouTubePlayerSupportFragment mYoutubePlayerFragment = new YouTubePlayerSupportFragment();
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.youTubePlayer, mYoutubePlayerFragment);
fragmentTransaction.commit();
mYoutubePlayerFragment.initialize(API_KEY, new YouTubePlayer.OnInitializedListener() {
@Override
public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer player, boolean wasRestored) {
if(!wasRestored){
player.cueVideo("2zNSgSzhBfM");
}
}
@Override
public void onInitializationFailure(YouTubePlayer.Provider provider, YouTubeInitializationResult youTubeInitializationResult) {
Toast.makeText(getContext(),"Error",Toast.LENGTH_LONG).show();
}
});
return fragmentYoutubeView;
}
}
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">
<FrameLayout
android:id="@+id/youTubePlayer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:visibility="visible" />
</RelativeLayout>
回答1:
In your build.gradle file, instead of
compile project(':YouTubeAndroidPlayerApi')
[replace it with] compile files('libs/YouTubeAndroidPlayerApi.jar')
Make sure you have copied the jar file in to the libs folder.
回答2:
Try using
mYoutubePlayerFragment = YouTubePlayerSupportFragment.newInstance();
instead of
mYoutubePlayerFragment = new YouTubePlayerSupportFragment();
来源：https://stackoverflow.com/questions/37604918/exception-thrown-by-invoked-constructor-in-com-google-android-youtube-api-jar-cl