Question

如何检查Android中的互联网连接是否已启用？就像LOCATION SERVICE被禁用一样，我们使用技术

Location myLocation = locationmanager.getLastKnownLocation(provider);
if(myLocation == null){
      Show the AlertDialog.
}else{
do this.
}

像这样，我如何检查互联网连接是否已启用/已禁用。

Answer 1

对于wifi：

ConnectivityManager mgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = mgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
connected = networkInfo != null && networkInfo.isConnected();

对于手机：

ConnectivityManager mgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = mgr.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
connected = networkInfo != null && networkInfo.isConnected();

Answer 2

您可以使用以下方法：

ConnectivityManager conectivtyManager = (ConnectivityManager) ctx.getSystemService(Context.CONNECTIVITY_SERVICE);  
if (conectivtyManager.getActiveNetworkInfo() != null  
    && conectivtyManager.getActiveNetworkInfo().isAvailable()  
    && conectivtyManager.getActiveNetworkInfo().isConnected()) {  
    isConnected = true;  
} else {  
    isConnected= false;  
}

希望它有所帮助！

如何检查互联网连接（Wifi /移动数据）是否已启用？

2 个答案: