检查整个应用程序的互联网连接

发布于 2024-12-15 07:40:50 字数 489 浏览 2 评论 0原文

我正在开发基于互联网的应用程序，所以我需要监控互联网连接。链接

我在创建时使用了此代码mainActivity 来检查我的互联网连接，它工作正常。

public boolean isOnline() 
{  
ConnectivityManager cm = (ConnectivityManager) 
getSystemService(Context.CONNECTIVITY_SERVICE);  return 
cm.getActiveNetworkInfo().isConnectedOrConnecting();
}

但我需要这种监控应该通过应用程序来完成。我应该在哪里使用这个？需要任何 AsyncTask 吗？

原文

I'm working on Internet based app,so i need to monitor Internet Connection. link

I used this code in on create of mainActivity to check my internet connection it works fine.

public boolean isOnline() 
{  
ConnectivityManager cm = (ConnectivityManager) 
getSystemService(Context.CONNECTIVITY_SERVICE);  return 
cm.getActiveNetworkInfo().isConnectedOrConnecting();
}

But i need this monitoring should be done through out application.
Where should i use this ? Any AsyncTask needed?

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路还长，别太狂 2024-12-22 07:40:50

创建一个 BroadcastReceiver 来检测连接状态的变化。请参阅此处 Eric 的回答

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复古式 2024-12-22 07:40:50

使用广播接收器，如下所示：

private BroadcastReceiver mConnReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            boolean noConnectivity = intent.getBooleanExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, false);
            String reason = intent.getStringExtra(ConnectivityManager.EXTRA_REASON);
                        boolean isFailover = intent.getBooleanExtra(ConnectivityManager.EXTRA_IS_FAILOVER, false);

            NetworkInfo currentNetworkInfo = (NetworkInfo) intent.getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO);
            NetworkInfo otherNetworkInfo = (NetworkInfo) intent.getParcelableExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO);

            // do application-specific task(s) based on the current network state, such 
            // as enabling queuing of HTTP requests when currentNetworkInfo is connected etc.
        }
    };

 private void registerReceivers() {    
       registerReceiver(mConnReceiver, 
           new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
   }

Use a BroadCast Receiver, like so :

private BroadcastReceiver mConnReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            boolean noConnectivity = intent.getBooleanExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, false);
            String reason = intent.getStringExtra(ConnectivityManager.EXTRA_REASON);
                        boolean isFailover = intent.getBooleanExtra(ConnectivityManager.EXTRA_IS_FAILOVER, false);

            NetworkInfo currentNetworkInfo = (NetworkInfo) intent.getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO);
            NetworkInfo otherNetworkInfo = (NetworkInfo) intent.getParcelableExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO);

            // do application-specific task(s) based on the current network state, such 
            // as enabling queuing of HTTP requests when currentNetworkInfo is connected etc.
        }
    };

 private void registerReceivers() {    
       registerReceiver(mConnReceiver, 
           new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
   }

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