>获取设备

获取您的

device whitelisted(您将需要设备序列号#和您的HTML5接收器的URL)

>你将被发送两个APPID(开发/生产)

>在您的开发环境中,请确保更新到Android支持库v18

>你将使用

MediaRouter

>初始化

import com.google.cast.CastContext;

Context applicationContext = …; CastContext castContext = new

CastContext(applicationContext);

>你需要一个MediaRouteButton

< android.support.v7.app.MediaRouteButton

android:id="@+id/media_route_button"

android:mediaRouteTypes="user"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:visibility="visible" />

import com.google.cast.CastContext;

import com.google.cast.CastDevice;

import com.google.cast.MediaRouteAdapter;

import com.google.cast.MediaRouteHelper;

import com.google.cast.MediaRouteStateChangeListener;

import android.support.v4.app.FragmentActivity;

import android.support.v7.app.MediaRouteButton;

import android.support.v7.media.MediaRouteSelector;

import android.support.v7.media.MediaRouter;

import android.support.v7.media.MediaRouter.RouteInfo;

public class MyCastActivity extends FragmentActivity implements MediaRouteAdapter {

private MediaRouteButton mMediaRouteButton;

private MediaRouter mMediaRouter;

private MediaRouteSelector mMediaRouteSelector;

private MediaRouter.Callback mMediaRouterCallback;

private CastDevice mSelectedDevice;

private MediaRouteStateChangeListener mRouteStateListener;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.my_cast_activity);

mMediaRouteButton = (MediaRouteButton) findViewById(R.id.media_route_button);

>构造一个CastContext.

mCastContext = new CastContext(getApplicationContext());

– 通过调用注册MinimalCastMediaRouteProvider

MediaRouteHelper.registerMinimalMediaRouteProvider(),传递

实现MediaRouteAdapter接口的对象.

MediaRouteHelper.registerMinimalMediaRouteProvider(mCastContext, this);

mMediaRouter = MediaRouter.getInstance(getApplicationContext());

通过调用构建MediaRouteSelector

MediaRouteHelper.buildMediaRouteSelector().有两种形式

这个方法：第一个没有参数,第二个需要一个

接收机应用程序名称和/或消息协议列表.这个

后一种形式用于执行与之相当的设备过滤

由SDK的ApplicationSupportFilterListener完成.

mMediaRouteSelector = MediaRouteHelper.buildMediaRouteSelector( MediaRouteHelper.CATEGORY_CAST);

>将MediaRouteSelector分配给MediaRouteButton.

mMediaRouteButton.setRouteSelector(mMediaRouteSelector);

>实现MediaRouter.Callback并将其添加到MediaRouter中,

将CALLBACK_FLAG_REQUEST_DISCOVERY传递给MediaRouter

发起发现当用户选择或取消选择路由时

GUI选择器,这个回调接口上的相应方法会

被调用.

06007

>在MediaRouter.Callback的onRouteSelected()回调中,进行调用

到MediaRouteHelper.requestCastDeviceForRoute()获取一个

所选媒体路由的CastDevice对象,以及

MediaRouteStateChangeListener,每当需要收到通知

路线体积或连接状态变化.

06008

}