import android.support.v7.media.MediaRouteProvider; //导入依赖的package包/类
public static SubjectFactory<MediaRouteProviderProviderMetadataSubject, MediaRouteProvider.ProviderMetadata> type() {
  return new SubjectFactory<MediaRouteProviderProviderMetadataSubject, MediaRouteProvider.ProviderMetadata>() {
    @Override
    public MediaRouteProviderProviderMetadataSubject getSubject(FailureStrategy fs, MediaRouteProvider.ProviderMetadata that) {
      return new MediaRouteProviderProviderMetadataSubject(fs, that);
    }
  };
}
 

import android.support.v7.media.MediaRouteProvider; //导入依赖的package包/类
@Override
public MediaRouteProvider onCreateMediaRouteProvider() {
	if (mProvider == null) {
		mProvider = new Provider(this);
	}
	return mProvider;
}
 

import android.support.v7.media.MediaRouteProvider; //导入依赖的package包/类
protected MediaRouteProviderProviderMetadataSubject(FailureStrategy failureStrategy, MediaRouteProvider.ProviderMetadata subject) {
  super(failureStrategy, subject);
}
 

import android.support.v7.media.MediaRouteProvider; //导入依赖的package包/类
@Override
public MediaRouteProvider.RouteController onCreateRouteController(String routeId) {
	return new JukeboxRouteController(downloadService);
}
 

import android.support.v7.media.MediaRouteProvider; //导入依赖的package包/类
public void destroy() {
	for(MediaRouteProvider provider: providers) {
		router.removeProvider(provider);
	}
}
 

import android.support.v7.media.MediaRouteProvider; //导入依赖的package包/类
public void removeOnlineProviders() {
	for(MediaRouteProvider provider: onlineProviders) {
		router.removeProvider(provider);
	}
}
 

import android.support.v7.media.MediaRouteProvider; //导入依赖的package包/类
@Override
public MediaRouteProvider onCreateMediaRouteProvider() {
    return new SampleMediaRouteProvider(this);
}
 

import android.support.v7.media.MediaRouteProvider; //导入依赖的package包/类
public MediaRouteProviderProviderMetadataAssert(MediaRouteProvider.ProviderMetadata actual) {
  super(actual, MediaRouteProviderProviderMetadataAssert.class);
}