android连接到互联网事件 [英] android connect to internet event

问题描述

有没有一个事件告诉我，设备已经连接到INTERNET（3G或WiFi）？只有在设备连接到INTERNET后才需要启动一些请求。代码需要支持Android 2.1。感谢

解决方案

您可以使用广播接收器等待操作 ConnectivityManager.CONNECTIVITY_ACTION

这里 doc

例如：

  broadcastReceiver = new BroadcastReceiver（）{
 
 @Override 
 public void onReceive（Context context，Intent intent）{
 
 ConnectivityManager连接=（ConnectivityManager）上下文
 .getSystemService（Context.CONNECTIVITY_SERVICE）; 
 
 
 NetworkInfo [] info = connectivity.getAllNetworkInfo（）; 
 //播放有关当前网络状态的信息
 
 
} 
 
} 
}; 
 
 intentFilter = new IntentFilter（）; 
 intentFilter.addAction（ConnectivityManager.CONNECTIVITY_ACTION）; 
 registerReceiver（broadcastReceiver，intentFilter）; 
  

Is there a event which tells me that the device has connected to INTERNET (3G or wifi)? I need to start some request only after device connects to INTERNET. The code needs to support Android 2.1. Thanks

解决方案

You can use a Broadcast receiver and wait for the action ConnectivityManager.CONNECTIVITY_ACTION

Here the doc

Ex:

broadcastReceiver = new BroadcastReceiver() {

                @Override
                public void onReceive(Context context, Intent intent) {

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


                        NetworkInfo[] info = connectivity.getAllNetworkInfo();
                        //Play with the info about current network state


                    }

                }
            };

            intentFilter = new IntentFilter();
            intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
            registerReceiver(broadcastReceiver, intentFilter);

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