Android 监听网络状态更改的广播(静态注册)

1、定义一个类，假设为StateBroadcastReceiver继承BroadcastReceiver，然后重写onReceive方法：

@Override

public voidonReceive(Context context, Intent intent) {

ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);

State wifiState = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState();//获取wifi网络状态

State mobileState = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState();//获取移动数据网络状态

//没有执行return,则说明当前无网络连接

if(wifiState != State.CONNECTED&& mobileState != State.CONNECTED) {

System.out.println("------------> Network is validate");

intent.setClass(context, NetWorkErrorActivity.class);

intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP| Intent.FLAG_ACTIVITY_NEW_TASK);

context.startActivity(intent);

return;

}

//判断网络是否已经连接

System.out.println("------------> Network is ok");

}

2、在Manifest文件中注册广播

<receiver android:name=".StateBroadcastReceiver" >

      <intent-filter>

            android:name="android.net.conn.CONNECTIVITY_CHANGE" />

      </intent-filter>

</receiver>

3、别忘了加权限