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Quiero agregar mi aplicación a la barra de notificaciones para que siempre se muestre, como algunas aplicaciones en la tienda de Google Play.Mostrar siempre el servicio en la barra de notificación
Quiero que sea como esta captura de pantalla:
Quiero que mi notificación no se borrará, y para mi aplicación para ser abierta cuando se hace clic en la notificación.
Aquí está mi código de clase de servicio:
package com.demo;
import java.util.Random;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.widget.Toast;
public class ServiceExample extends Service {
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
Toast.makeText(this,"Service Created",300).show();
}
@Override
public void onDestroy() {
super.onDestroy();
Toast.makeText(this,"Service Destroy",300).show();
}
@Override
public void onLowMemory() {
super.onLowMemory();
Toast.makeText(this,"Service LowMemory",300).show();
}
@Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
Toast.makeText(this,"Service start",300).show();
Notification notification = new Notification(R.drawable.ic_launcher,
"Rolling text on statusbar", System.currentTimeMillis());
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, ServiceDemoActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
notification.setLatestEventInfo(this,
"Notification title", "Notification description", contentIntent);
startForeground(1, notification);
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Toast.makeText(this,"task perform in service",300).show();
/*ThreadDemo td=new ThreadDemo();
td.start();*/
Notification notification = new Notification(R.drawable.ic_launcher,
"Rolling text on statusbar", System.currentTimeMillis());
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, ServiceDemoActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
notification.setLatestEventInfo(this,
"Notification title", "Notification description", contentIntent);
startForeground(1, notification);
return super.onStartCommand(intent, flags, startId);
}
private class ThreadDemo extends Thread{
@Override
public void run() {
super.run();
try{
sleep(70*1000);
handler.sendEmptyMessage(0);
}catch(Exception e){
e.getMessage();
}
}
}
private Handler handler=new Handler(){
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
showAppNotification();
}
};
void showAppNotification() {
try{
NotificationManager nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
// The PendingIntent to launch our activity if the user selects this
// notification. Note the use of FLAG_CANCEL_CURRENT so that, if there
// is already an active matching pending intent, cancel it and replace
// it with the new array of Intents.
// PendingIntent contentIntent = PendingIntent.getActivities(this, 0,
// "My service completed", PendingIntent.FLAG_CANCEL_CURRENT);
// The ticker text, this uses a formatted string so our message could be localized
String tickerText ="djdjsdjkd";
// construct the Notification object.
Notification notif = new Notification(R.drawable.ic_launcher, tickerText,
System.currentTimeMillis());
// Set the info for the views that show in the notification panel.
// notif.setLatestEventInfo(this, from, message, contentIntent);
// We'll have this notification do the default sound, vibration, and led.
// Note that if you want any of these behaviors, you should always have
// a preference for the user to turn them off.
notif.defaults = Notification.DEFAULT_ALL;
// Note that we use R.layout.incoming_message_panel as the ID for
// the notification. It could be any integer you want, but we use
// the convention of using a resource id for a string related to
// the notification. It will always be a unique number within your
// application.
nm.notify(0, notif);
}catch(Exception e){
e.getMessage();
}
}
}
y declaro mi servicio en mi proyecto de archivo de manifiesto:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.demo"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".ServiceDemoActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".ServiceExample"></service>
</application>
</manifest>
Ésta es mi clase para iniciar y detener el servicio:
package com.demo;
import android.app.Activity;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.ReceiverCallNotAllowedException;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
public class ServiceDemoActivity extends Activity implements OnClickListener {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
findViewById(R.id.start).setOnClickListener(this);
findViewById(R.id.stop).setOnClickListener(this);
}
private Intent inetnt;
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.start:
inetnt=new Intent(this,ServiceExample.class);
startService(inetnt);
break;
case R.id.stop:
inetnt=new Intent(this,ServiceExample.class);
stopService(inetnt);
break;
}
}
@Override
protected void onResume() {
super.onResume();
}
@Override
protected void onDestroy() {
super.onDestroy();
//
}
}
Aquí está mi código de diseño:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="StartService"
android:id="@+id/start"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="StopService"
android:id="@+id/stop" />
</LinearLayout>
favor formatear correctamente su respuesta –
@paradx dice error El método está definido – Dinesh
El método startForeground (...) es un miembro de la clase de servicio startForeground (int, de notificación). Si desea mantener una notificación en la barra de estado, debe implementar un servicio, no puede llamarlo desde una actividad. –