Android中判斷網路

 

直接給代碼好啦，程式員都懂得！

if (!isConnectInternet(getContext())) {
         Toast.makeText(getContext(), "暫時沒有可用的網路,請檢查網路", Toast.LENGTH_SHORT).show();
     }else{
      Toast.makeText(getContext(), R.string.userorpass_wrong, Toast.LENGTH_LONG).show();

     }  

public boolean isConnectInternet(Context context)  {
        ConnectivityManager connectivityManager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
        if (activeNetInfo != null && activeNetInfo.isAvailable()) {
              return true;
        }else{

              return false;
       }

}