關RingtoneManager歌Android

Question

我已經嘗試了這麼多的解決方案原樣

RingtoneManager.stopPreviousRingtone();

但它自帶了一個錯誤 -
Cannot make a static reference to the non-static method stopPreviousRingtone() from the type RingtoneManager

MyAlarmService.java

package com.example.getbettersoon; 

import android.app.Service; 
import android.content.Intent; 
import android.media.Ringtone; 
import android.media.RingtoneManager; 
import android.net.Uri; 
import android.os.IBinder; 
import android.widget.Toast; 

public class MyAlarmService extends Service { 

    static Ringtone ringtone; 

    @Override 
    public void onDestroy() { 
     super.onDestroy(); 
     //Toast.makeText(this, "MyAlarmService.onDestroy()", Toast.LENGTH_LONG).show(); 
     //RingtoneManager.stopPreviousRingtone(); 
     ringtone.stop(); // THIS DOES NOT STOP THE RINGTONE 
    } 

    @SuppressWarnings("deprecation") 
    public void onStart(Intent intent, int startId) { 
     super.onStart(intent, startId); 
     Toast.makeText(this, "MyAlarmService.onStart()", Toast.LENGTH_LONG).show(); 
     Uri alarm = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM); 
     ringtone = RingtoneManager.getRingtone(getApplicationContext(), alarm); 
     ringtone.play(); 
    } 


} 

Alarm.java

package com.example.getbettersoon; 

import java.util.Calendar; 

import android.app.Activity; 
import android.app.AlarmManager; 
import android.app.PendingIntent; 
import android.content.Intent; 
import android.media.Ringtone; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.Button; 
import android.widget.TextView; 
import android.widget.Toast; 

public class Alarm extends Activity { 

    String gethours; 
    int myNum; 
    private PendingIntent pendingIntent; 


      public void SetAlarm(View arg0) { 

       Intent myIntent = new Intent(Alarm.this, MyAlarmService.class); 
       pendingIntent = PendingIntent.getService(Alarm.this, 0, myIntent, 0); 
       AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE); 
       Calendar calendar = Calendar.getInstance(); 
       calendar.setTimeInMillis(System.currentTimeMillis()); 
       calendar.add(Calendar.SECOND, 10);   // test 

       //TextView tv = (TextView) findViewById(R.id.bthrs); 
       //tv.setText(myNum); 

       alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent); 
       Toast.makeText(Alarm.this, "Start Alarm", Toast.LENGTH_LONG).show(); 

      }; 


      public void OffAlarm(View arg0) { 
       Intent myIntent = new Intent(Alarm.this, MyAlarmService.class); 
       pendingIntent = PendingIntent.getService(Alarm.this, 0, myIntent, 0); 
       AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE); 
       alarmManager.cancel(pendingIntent); 

       // Tell the user about what we did. 
       Toast.makeText(Alarm.this, "Cancel!", Toast.LENGTH_LONG).show(); 

      }; 

    } 

當按下我的按鈕，鈴聲10秒後啓動，但是當我按下停止按鈕音樂不會停止。任何人都可以幫助我嗎？

Answer 1

我假設您依靠您的服務被停止以停止鈴聲播放。行：

alarmManager.cancel(pendingIntent); 

僅僅從由AlarmManager被部署在未來移除該服務並不停止活動服務。

要停止你需要使用Context.stopService()

例如正在運行的服務：

public void OffAlarm(View arg0){ 
    Intent myIntent = new Intent(Alarm.this, MyAlarmService.class); 
    pendingIntent = PendingIntent.getService(Alarm.this, 0, myIntent, 0); 
    AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE); 
    alarmManager.cancel(pendingIntent); 

    // Stops an existing running service 

    stopService(myIntent); 

    // Tell the user about what we did. 
    Toast.makeText(Alarm.this, "Cancel!", Toast.LENGTH_LONG).show(); 
} 

只有這樣，onDestroy()方法由Android系統調用，您的鈴聲停止。