首页 > 代码库 > android 通过广播监听网络连接状况
android 通过广播监听网络连接状况
首先添加以下权限
<uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" /> <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
new一个广播NetStateChangeBroadcast
package aviationboss.broadcast; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.net.ConnectivityManager; import android.net.NetworkInfo.State; import android.util.Log; import android.widget.Toast; import aviationboss.data.SystemData; public class NetStateChangeBroadcast extends BroadcastReceiver { private ConnectivityManager connectivity; private boolean isConnect = false; @Override public void onReceive(Context arg0, Intent arg1) { // TODO Auto-generated method stub connectivity = (ConnectivityManager) arg0 .getSystemService(arg0.CONNECTIVITY_SERVICE); State wifiState = connectivity.getNetworkInfo( ConnectivityManager.TYPE_WIFI).getState(); if (State.CONNECTED == wifiState) { isConnect = true; } if(connectivity.getNetworkInfo(ConnectivityManager.TYPE_MOBILE)!=null){ State mobileState = connectivity.getNetworkInfo( ConnectivityManager.TYPE_MOBILE).getState(); if (State.CONNECTED == mobileState) { isConnect = true; } } Intent intent = new Intent(); intent.setAction("netConnect"); if (isConnect) { if (!SystemData.NetState) { Toast.makeText(arg0, "网络已连接", Toast.LENGTH_SHORT).show(); SystemData.NetState = true; intent.putExtra("netActions", "网络已连接"); arg0.sendBroadcast(intent); } } else { if (SystemData.NetState) { Toast.makeText(arg0, "网络已断开", Toast.LENGTH_SHORT).show(); SystemData.NetState = false; intent.putExtra("netActions", "网络已断开"); arg0.sendBroadcast(intent); } } } }
判断wifi的连接状态
connectivity.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState()
判断移动网的连接状态
connectivity.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState()
在配置文件中添加该广播,并设置监听的动作
<receiver android:name="aviationboss.broadcast.NetStateChangeBroadcast" > <intent-filter> <action android:name="android.net.conn.CONNECTIVITY_CHANGE" /> </intent-filter> </receiver>
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