由网友(结局是灰色的)分享简介：我要检查，当手机在Android的网络熄灭。我可以捕捉事件？我没有得到适当的API或任何例子可以解释相同。如果有人做了或者例如链接将是非常有益的。先谢谢了。I want to check when the network of phone in Android goes off. Can I capture th...

我要检查，当手机在Android的网络熄灭。我可以捕捉事件？ 我没有得到适当的API或任何例子可以解释相同。如果有人做了或者例如链接将是非常有益的。 先谢谢了。

I want to check when the network of phone in Android goes off. Can I capture that event? I am not getting the proper API or any example which would explain the same. If anyone had done or any example links would be really helpful. Thanks in advance.

推荐答案

新的Java类：

public class ConnectionChangeReceiver extends BroadcastReceiver
{
  @Override
  public void onReceive( Context context, Intent intent )
  {
    ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService( Context.CONNECTIVITY_SERVICE );
    NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
    NetworkInfo mobNetInfo = connectivityManager.getNetworkInfo(     ConnectivityManager.TYPE_MOBILE );
    if ( activeNetInfo != null )
    {
      Toast.makeText( context, "Active Network Type : " + activeNetInfo.getTypeName(), Toast.LENGTH_SHORT ).show();
    }
    if( mobNetInfo != null )
    {
      Toast.makeText( context, "Mobile Network Type : " + mobNetInfo.getTypeName(), Toast.LENGTH_SHORT ).show();
    }
  }
}

在你的Andr​​oidManifest.xml中新的XML下的清单的元素：

New xml in your AndroidManifest.xml under the "manifest" element:

<!-- Needed to check when the network connection changes -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

在你的Andr​​oidManifest.xml中新的XML下的应用程序的元素：

New xml in your AndroidManifest.xml under the "application" element:

<receiver android:name="com.blackboard.androidtest.receiver.ConnectionChangeReceiver"
          android:label="NetworkConnection">
  <intent-filter>
    <action android:name="android.net.conn.CONNECTIVITY_CHANGE"/>
  </intent-filter>
</receiver>