2012-05-06 18 views
3

私のアンドロイドアプリが私にこのエラーを与え続けています。 The application has stopped working unexpectedly. Please try again。私は自分のコードで何が間違っているのか分かりません。私はこのアプリを何時間も働いていて、今は頭が吹き飛んでいます。私のコードで何が間違っていますか?アプリケーションがアンドロイドで予期せず停止しました

xmlファイル

<?xml version="1.0" encoding="utf-8"?> 
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" > 

<CheckBoxPreference 
    android:title="Enable/Disable Alarm" 
    android:defaultValue="true" 
    android:key="cbAlarm" 
    android:summary="Enable or disable alarm for full charged battery" /> 

<RingtonePreference 
    android:title="Choose Alarm" 
    android:key="ringtone" 
    android:summary="Choose ringtone as alarm for battery charged complete" 
    ></RingtonePreference> 

</PreferenceScreen> 

ここでの主なクラスファイル

package com.zafar.batteryalarm; 


import android.content.Intent; 
import android.os.Bundle; 
import android.preference.CheckBoxPreference; 
import android.preference.Preference; 
import android.preference.PreferenceActivity; 

public class BatteryAlarm extends PreferenceActivity { 

/** Called when the activity is first created. */ 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    addPreferencesFromResource(R.xml.alarm); 

    final CheckBoxPreference checkboxPref = (CheckBoxPreference) getPreferenceManager().findPreference("cbAlarm"); 

     checkboxPref.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {    
      public boolean onPreferenceChange(Preference preference, Object newValue) { 
       if (newValue.toString().equals("true")) { 
        startService(new Intent(getBaseContext(), BatteryService.class)); 

       } else if(newValue.toString().equals("false")) { 
        stopService(new Intent(getBaseContext(), BatteryService.class)); 

       } 
       return true; 
      } 
     }); 
} 
} 

は私のサービスクラスである

package com.zafar.batteryalarm; 

import java.io.IOException; 

import android.app.Notification; 
import android.app.NotificationManager; 
import android.app.PendingIntent; 
import android.app.Service; 
import android.content.BroadcastReceiver; 
import android.content.Context; 
import android.content.Intent; 
import android.content.IntentFilter; 
import android.content.SharedPreferences; 
import android.media.AudioManager; 
import android.media.MediaPlayer; 
import android.net.Uri; 
import android.os.BatteryManager; 
import android.os.IBinder; 
import android.preference.PreferenceManager; 
import android.widget.Toast; 

public class BatteryService extends Service { 

// protected static final Bundle Bundle = null; 
private MediaPlayer mMediaPlayer; 
private static final int NOTIFICATION_ID = 1; 

@Override 
public IBinder onBind(Intent intent) { 
    // TODO Auto-generated method stub 
    return null; 
} 

@Override 
public int onStartCommand(Intent intent, int flags, int startId) { 
    initNotification(); 
    Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show(); 
    this.registerReceiver(this.batteryInfoReceiver, new IntentFilter(
      Intent.ACTION_BATTERY_CHANGED)); 
    return START_STICKY; 
} 

private BroadcastReceiver batteryInfoReceiver = new BroadcastReceiver() { 
    private BroadcastReceiver batteryInfoReceiver; 

    @Override 
    public void onReceive(Context context, Intent intent) { 
     Toast.makeText(context, "Battery alarm is enabled", Toast.LENGTH_LONG).show(); 
     int level = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0); 
     int plugged = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, 0); 

     if (plugged == 2) { 

      if (level == 100) { 
       Toast.makeText(context, "Battery charge is completed. Unplug charger!", Toast.LENGTH_LONG).show(); 
       SharedPreferences getAlarms = PreferenceManager 
         .getDefaultSharedPreferences(getBaseContext()); 
       String alarms = getAlarms.getString("ringtone", 
         "default ringtone"); 
       // getting uri from MediaStore via filepath i.e. 
       // content://media/internal/audio/media/29 
       Uri uri = Uri.parse(alarms); 

       mMediaPlayer = new MediaPlayer(); 
       try { 
        mMediaPlayer.setDataSource(context, uri); 
        final AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); 
        if (audioManager.getStreamVolume(AudioManager.STREAM_ALARM) != 0) { 
         mMediaPlayer.setAudioStreamType(AudioManager.STREAM_ALARM); 
         mMediaPlayer.prepare(); 
         mMediaPlayer.start(); 
        } 
       } catch (IOException e) { 
        // System.out.println("OOPS"); 
        e.getStackTrace(); 
       } 
      } 
     } else if (plugged == 0) { 
      mMediaPlayer.stop(); 
      unregisterReceiver(this.batteryInfoReceiver); 
      // onDestroy(); 
     } 
    } 
}; 

public void onDestroy() { 
    super.onDestroy(); 
    Toast.makeText(this, "Battery alarm is disabled", Toast.LENGTH_LONG).show(); 
    cancelNotification(); 
    // unregisterReceiver(this.batteryInfoReceiver); 
} 

private void initNotification() { 
    String ns = Context.NOTIFICATION_SERVICE; 
    NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns); 
    int icon = R.drawable.ic_launcher; 
    CharSequence tickerText = "Battery Service"; 
    long when = System.currentTimeMillis(); 
    Notification notification = new Notification(icon, tickerText, when); 
    notification.flags = Notification.FLAG_ONGOING_EVENT; 
    Context context = getApplicationContext(); 
    CharSequence contentTitle = "Content Title"; 
    CharSequence contentText = "Content Text"; 
    Intent notificationIntent = new Intent(this, BatteryAlarm.class); 
    PendingIntent contentIntent = PendingIntent.getActivity(context, 0, 
      notificationIntent, 0); 
    notification.setLatestEventInfo(context, contentTitle, contentText, 
      contentIntent); 
    mNotificationManager.notify(NOTIFICATION_ID, notification); 
} 

private void cancelNotification() { 
    String ns = Context.NOTIFICATION_SERVICE; 
    NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns); 
    mNotificationManager.cancel(NOTIFICATION_ID); 
} 

} 

編集

ここでIこれは、if(mMediaPlayer != null) { mMediaPlay.stop() }しかし、それはまだdoesntの仕事の後に、最新のlogcatをである

debugging image

Logcat

05-06 19:25:03.425: I/System.out(861): Sending WAIT chunk 
05-06 19:25:03.425: W/ActivityThread(861): Application com.zafar.batteryalarm is waiting for the debugger on port 8100... 
05-06 19:25:03.470: I/dalvikvm(861): Debugger is active 
05-06 19:25:03.625: I/System.out(861): Debugger has connected 
05-06 19:25:03.625: I/System.out(861): waiting for debugger to settle... 
05-06 19:25:03.825: I/System.out(861): waiting for debugger to settle... 
05-06 19:25:04.025: I/System.out(861): waiting for debugger to settle... 
05-06 19:25:04.225: I/System.out(861): waiting for debugger to settle... 
05-06 19:25:04.425: I/System.out(861): waiting for debugger to settle... 
05-06 19:25:04.625: I/System.out(861): waiting for debugger to settle... 
05-06 19:25:04.825: I/System.out(861): waiting for debugger to settle... 
05-06 19:25:05.030: I/System.out(861): debugger has settled (1358) 
05-06 19:25:05.250: D/dalvikvm(861): GC_EXTERNAL_ALLOC freed 46K, 50% free 2726K/5379K, external 0K/0K, paused 74ms 
05-06 19:25:05.400: D/dalvikvm(861): GC_EXTERNAL_ALLOC freed 48K, 49% free 2775K/5379K, external 504K/518K, paused 16ms 
05-06 19:25:05.510: D/CLIPBOARD(861): Hide Clipboard dialog at Starting input: finished by someone else... ! 
05-06 19:25:16.280: W/KeyCharacterMap(861): No keyboard for id 0 
05-06 19:25:16.280: W/KeyCharacterMap(861): Using default keymap: /system/usr/keychars/qwerty.kcm.bin 
05-06 19:25:16.535: D/CLIPBOARD(861): Hide Clipboard dialog at Starting input: finished by someone else... ! 
05-06 19:30:12.350: E/MediaPlayer-JNI(861): setDataSource: outside path in JNI is [email protected] 
05-06 19:30:12.370: W/MediaPlayer(861): info/warning (1, 26) 
05-06 19:30:12.370: E/MediaPlayer(861): error (-4, -4) 
05-06 19:31:07.360: D/AndroidRuntime(861): Shutting down VM 
05-06 19:31:07.360: W/dalvikvm(861): threadid=1: thread exiting with uncaught exception (group=0x4001e578) 
05-06 19:31:07.420: E/AndroidRuntime(861): FATAL EXCEPTION: main 
05-06 19:31:07.420: E/AndroidRuntime(861): java.lang.RuntimeException: Error receiving broadcast Intent { act=android.intent.action.BATTERY_CHANGED flg=0x60000000 (has extras) } in [email protected] 
05-06 19:31:07.420: E/AndroidRuntime(861): at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:722) 
05-06 19:31:07.420: E/AndroidRuntime(861): at android.os.Handler.handleCallback(Handler.java:587) 
05-06 19:31:07.420: E/AndroidRuntime(861): at android.os.Handler.dispatchMessage(Handler.java:92) 
05-06 19:31:07.420: E/AndroidRuntime(861): at android.os.Looper.loop(Looper.java:130) 
05-06 19:31:07.420: E/AndroidRuntime(861): at android.app.ActivityThread.main(ActivityThread.java:3691) 
05-06 19:31:07.420: E/AndroidRuntime(861): at java.lang.reflect.Method.invokeNative(Native Method) 
05-06 19:31:07.420: E/AndroidRuntime(861): at java.lang.reflect.Method.invoke(Method.java:507) 
05-06 19:31:07.420: E/AndroidRuntime(861): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:907) 
05-06 19:31:07.420: E/AndroidRuntime(861): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665) 
05-06 19:31:07.420: E/AndroidRuntime(861): at dalvik.system.NativeStart.main(Native Method) 
05-06 19:31:07.420: E/AndroidRuntime(861): Caused by: java.lang.NullPointerException 
05-06 19:31:07.420: E/AndroidRuntime(861): at com.zafar.batteryalarm.BatteryService$1.onReceive(BatteryService.java:74) 
05-06 19:31:07.420: E/AndroidRuntime(861): at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:709) 
05-06 19:31:07.420: E/AndroidRuntime(861): ... 9 more 

編集私のlogcatよ。

05-07 18:35:10.000: W/ActivityThread(28850): Application com.zafar.batteryalarm is waiting for the debugger on port 8100... 
05-07 18:35:10.010: I/System.out(28850): Sending WAIT chunk 
05-07 18:35:10.090: I/dalvikvm(28850): Debugger is active 
05-07 18:35:10.210: I/System.out(28850): Debugger has connected 
05-07 18:35:10.210: I/System.out(28850): waiting for debugger to settle... 
05-07 18:35:10.410: I/System.out(28850): waiting for debugger to settle... 
05-07 18:35:10.605: I/System.out(28850): waiting for debugger to settle... 
05-07 18:35:10.805: I/System.out(28850): waiting for debugger to settle... 
05-07 18:35:11.005: I/System.out(28850): waiting for debugger to settle... 
05-07 18:35:11.210: I/System.out(28850): waiting for debugger to settle... 
05-07 18:35:11.415: I/System.out(28850): waiting for debugger to settle... 
05-07 18:35:11.614: I/System.out(28850): waiting for debugger to settle... 
05-07 18:35:11.814: I/System.out(28850): debugger has settled (1489) 
05-07 18:35:11.970: D/dalvikvm(28850): GC_EXTERNAL_ALLOC freed 51K, 50% free 2726K/5379K, external 0K/0K, paused 31ms 
05-07 18:35:12.105: D/dalvikvm(28850): GC_EXTERNAL_ALLOC freed 21K, 49% free 2780K/5379K, external 504K/518K, paused 16ms 
05-07 18:35:12.215: D/CLIPBOARD(28850): Hide Clipboard dialog at Starting input: finished by someone else... ! 
05-07 18:36:11.614: E/MediaPlayer-JNI(28850): setDataSource: outside path in JNI is [email protected] 
+1

ログをコピーしてログをコピーして貼り付けます。 –

+0

上記の更新を参照 – 2619

+0

私のアプリは最初は正常に動作しますが、充電器を抜くと「アプリケーションが予期せず停止しました。再試行してください」というエラーが表示されます – 2619

答えて

1

あなたはlogCatのこのラインをご覧ください:

05-06 19:31:07.420: E/AndroidRuntime(861): Caused by: java.lang.NullPointerException 
05-06 19:31:07.420: E/AndroidRuntime(861): at com.zafar.batteryalarm.BatteryService$1.onReceive(BatteryService.java:74) 

あなたはBatteryService.java

のonReceive方法で行74で発生する、NullPointerを持っているすべての変数があることを確認します初期化または適切に処理されます。

編集:コードをもう少し見た後、それはおそらく、mMediaPlayerはそうNullPointerExceptionが戻って初期化されないことが起こりでき

mMediaPlayer.stop(); 

で問題となっています。

編集2: これにより、NullPointerExceptionが修正されます。

if(mMediaPlayer != null) { 
    mMediaPlayer.stop(); 
} 
+0

このNullPointerを取得するにはどうすればよいですか?私は上記の私の例でどのように扱うことができますか?私はアンドロイドには新しく、まだ学びます。 – 2619

+0

回答を編集2を参照してください... – BrainCrash

+0

BrainBashこれは私がそれをやった私の問題を解決していません。それでも同じエラー。私は74行目にNullPointerがあると思います。それで74行目でどのように対処できますか? – 2619

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