我正在开发在线应用程序. [问题]当互联网停机或不可用时,它给我错误[强制关闭],我试图使用broadCast接收器处理但不满足精确解决方案,寻找更好的解决方案.
public class MyBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(final Context context,final Intent intent) {
NetworkInfo info = intent
.getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO);
if (null != info) {
String state = info.getState().toString();
if (state.equalsIgnoreCase("CONNECTED")) {
SplashScreen.isWiFiConnected = true;
Log.i("isWifiConnected","=================TRUE");
} else {
SplashScreen.isWiFiConnected = false;
Log.i("isWifiConnected","=================FALSE");
}
}
}
}
谢谢.
解决方法
static String data = null;
private static HttpPost httppost;
private static HttpParams httpParameters;
private static int timeoutConnection = 30000;
private static HttpClient httpclient = null;
private static HttpResponse response = null;
private static int responseCode=0;
public static ConnectivityManager mConnectivityManager;
public static NetworkInfo mNetworkInfo;
public static boolean isNetError=false;
/** Post Http data and returns final string and status on network */
public static void postHttp(String Url,Activity mActivity) {
try {
isNetError=false;
mConnectivityManager= (ConnectivityManager) mActivity.getSystemService(Context.CONNECTIVITY_SERVICE);
mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();
if (mNetworkInfo != null && mNetworkInfo.isConnectedOrConnecting())
{
httppost = new HttpPost(Url);
httpParameters = new BasicHttpParams();
HttpConnectionParams.setSoTimeout(httpParameters,timeoutConnection);
httpclient = new DefaultHttpClient(httpParameters);
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("text","some Text"));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs,HTTP.UTF_8));
// Execute HTTP Post Request
response = httpclient.execute(httppost);
data = EntityUtils.toString(response.getEntity());
}
else
isNetError=true;
} catch (Exception e) {
e.printStackTrace();
isNetError=true;
}
if (responseCode == 200)
{
isNetError=false;
System.out.println("final..." + data);
}
else
isNetError=true;
}
在asyntask的doInBackground()中调用此方法,并在onPostExecute()中检查isNetError值,并在添加权限的其他答案中提及< uses-permission android：name =“android.permission.ACCESS_NETWORK_STATE”/>
if(isNetError) //No internet else //do your stuff
