[英]calling a method in an activity from a broadcast receiver android
this is my broadcast receiver class and i want to call a method ( reconnect(); ) in my MainActivity along with showing the "Conection Lost! trying to reconnect.." toast这是我的广播接收器类,我想在我的MainActivity 中调用一个方法( reconnect(); ),同时显示“连接丢失!试图重新连接..”吐司
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.widget.Toast;
public class ConnectionStablizerReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
if(isConnected(context)) Toast.makeText(context, "Connection Established!", Toast.LENGTH_SHORT).show();
else Toast.makeText(context, "Conection Lost! trying to reconnect..", Toast.LENGTH_LONG).show();
}
public boolean isConnected(Context context) {
ConnectivityManager cm =
(ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
boolean isConnected = activeNetwork != null &&
activeNetwork.isConnected();
return isConnected;
}
}
<receiver android:name="com.example.broadcastreceiversample.MyReceiver" >
<intent-filter>
<action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
</intent-filter>
</receiver>
create ConnectionStablizerReceiver class as inner class of your activity.;创建 ConnectionStabilizerReceiver 类作为活动的内部类。 It will work
它会工作
public class Splash_screen extends Activity {
private static int SPLASH_TIME_OUT = 4000;
Global global;
SharedPreferences pref;
String base_url_final="";
private static String checkurlonetag ="sdfasdf";
private static String checkurltwotag ="sdfasdfgsdfhsfdhasdf";
// Dbhelper dbhelper;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash_screen);
global= (Global) getApplicationContext();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.splash_screen, menu);
return true;
}
class ConnectionStablizerReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
//dont forget to register reciver permision
if(intent.getAction().equals("android.net.conn.CONNECTIVITY_CHANGE")){
//do your onreceive action
}
}
}
}
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