出于某种原因,我的网络更改接收器不工作,并在我的Android应用程序中向我的NetworkStateReceiver类广播CONNECTIVITY_CHANGE。我已经检查过,看看它是否仅仅是我的对话框的问题,但是应该打印出来的Log.d不是。互联网连接更改广播没有发生
这里是AndroidManifest.xml中的代码:
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<receiver android:name="com.main.main.NetworkStateReceiver">
<intent-filter>
<action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
</intent-filter>
</receiver>
这里是NetworkStateReceiver.java代码:
package com.main.main;
import android.app.AlertDialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.Log;
public class NetworkStateReceiver extends BroadcastReceiver {
@Override
public void onReceive(final Context context, final Intent intent) {
final AlertDialog dialog = new AlertDialog.Builder(context)
.setTitle("Connection Failed")
.setMessage("Please Check Your Internet Connection")
.setPositiveButton("Try Again", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
//Code for try again
}
})
.setNegativeButton("Exit", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
}
}).create();
if (intent.getExtras() != null) {
final ConnectivityManager connectivityManager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
final NetworkInfo ni = connectivityManager.getActiveNetworkInfo();
if (ni != null && ni.isConnectedOrConnecting()) {
Log.d("INTERNET_MESSAGE", "Connected to internet");
dialog.dismiss();
} else if (intent.getBooleanExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, Boolean.FALSE)) {
Log.d("INTERNET_MESSAGE", "Disconnected from internet");
}
}
}
}
其中是dialog.show(); ??日志没有显示,因为这两个条件都不是真的,所以在结束时再多加一些,再次检查。 –
@DhawalSodhaParmar好的,我在最后加了一个else和一个日志,并且日志正在打印。你能粘贴一个修改后的if和else if块来确定是否有互联网连接吗? – fedorp1
检查我的答案之一http://stackoverflow.com/a/15546897/1168654 –