我正在尝试在警报触发时创建通知。但是警报没有触发,也没有显示通知。这是MainActivity.java文件 -
params
这是AlarmReciever类 -
package com.kaushal28.kaushal1
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;
import java.util.Calendar;
import java.util.GregorianCalendar;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
scheduleAlarm();
}
public void scheduleAlarm()
{
Long time = new GregorianCalendar().getTimeInMillis()+10000;
Intent intentAlarm = new Intent(this, AlarmReciever.class);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP,time, PendingIntent.getBroadcast(this,1, intentAlarm, PendingIntent.FLAG_UPDATE_CURRENT));
Toast.makeText(this, "Alarm Scheduled", Toast.LENGTH_LONG).show();
}
}
这是我的package com.kaushal28.kaushal1;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.media.RingtoneManager;
import android.net.Uri;
public class AlarmReciever extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent1)
{
System.out.println("Notification setup");
Uri sound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Intent intent=new Intent(context,MainActivity.class);
PendingIntent pendingIntent=PendingIntent.getActivity(context,1,intent,0);
Notification notification=new Notification.Builder(context)
.setContentText("TESTING NOTIFIACTION")
.setContentTitle("Notification")
.setContentIntent(pendingIntent)
.setSmallIcon(android.R.drawable.sym_def_app_icon)
.setSound(sound)
.build();
NotificationManager notificationManager= (NotificationManager)context.getSystemService(context.NOTIFICATION_SERVICE) ;
notificationManager.notify(1,notification);
}
}
文件:
menifest.xml
我在这里缺少什么?任何帮助将不胜感激。
答案 0 :(得分:0)