Android开发实时监听前台应用的变化 android监听app启动

<!-- 监听网络状态的广播接收者 -->

    <receiver android:name=".receiver.NetworkBroadcastReceiver" >

        <intent-filter>

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

        </intent-filter>

    </receiver>



</application>

广播接收者

-----

package ……;
import ……;
/**
• Created by kongqw on 2015/11/23.
*/
public class NetworkBroadcastReceiver extends BroadcastReceiver {

@Override

public void onReceive(Context context, Intent intent) {

    try {

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

        NetworkInfo mobileInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);

        NetworkInfo wifiInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);

        //如果无网络连接activeInfo为null

        NetworkInfo activeInfo = manager.getActiveNetworkInfo();



        if (wifiInfo.isConnected()) {

            // wifi 网络

            Log.i("Network", "wifi 网络");

        } else if (mobileInfo.isConnected()) {

            // 手机网络

            Log.i("Network", "手机网络");

        } else if (null == activeInfo) {

            // 没有网络

            Log.i("Network", "没有网络");

        }

    } catch (Exception e) {

        e.printStackTrace();

    }

}