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profiles: resolve null pointer if service is down
If the service helper, not the service itself, has no reference we would end up in a null pointer. Since its actually okay if the helper class is not instantiated we don't need to try-catch it. Also adding a warning boolean which fixes strange overlay issues if the same fragment is created several times. Signed-off-by: Blechd0se <alex.christ@hotmail.de>
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168 changes: 83 additions & 85 deletions
168
AeroControl/src/com/aero/control/service/PerAppServiceHelper.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,85 +1,83 @@ | ||
| package com.aero.control.service; | ||
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| import android.app.AlarmManager; | ||
| import android.app.PendingIntent; | ||
| import android.content.Context; | ||
| import android.content.Intent; | ||
| import android.content.SharedPreferences; | ||
| import android.preference.PreferenceManager; | ||
| import android.util.Log; | ||
|
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| import java.util.Calendar; | ||
|
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| /** | ||
| * Created by Alexander Christ on 29.05.14. | ||
| */ | ||
| public class PerAppServiceHelper { | ||
|
|
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| private Intent mBackgroundIntent = null; | ||
| private AlarmManager mTimer = null; | ||
| private PendingIntent mPendingIntent = null; | ||
| private SharedPreferences mPrefs; | ||
| private Context mContext; | ||
| private boolean mState; | ||
|
|
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| public PerAppServiceHelper(Context context) { | ||
| this.mContext = context; | ||
| mBackgroundIntent = new Intent(mContext, PerAppService.class); | ||
| mPrefs = PreferenceManager.getDefaultSharedPreferences(mContext); | ||
| } | ||
|
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| public final void setState(boolean state) { mState = state; } | ||
|
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| public final boolean getState() { | ||
| return mState; | ||
| } | ||
|
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| public final boolean shouldBeStarted() { | ||
|
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| final boolean tmp = mPrefs.getBoolean("per_app_service", false); | ||
|
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| if (!tmp) | ||
| setState(false); | ||
| else if (tmp) | ||
| setState(true); | ||
|
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| return getState(); | ||
| } | ||
|
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| public final void startService() { | ||
|
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| /* Start Service */ | ||
| final Calendar cal = Calendar.getInstance(); | ||
| Log.e("Aero", "Service should be started now!"); | ||
| mBackgroundIntent = new Intent(mContext, PerAppService.class); | ||
| mContext.startService(mBackgroundIntent); | ||
| mPendingIntent = PendingIntent.getService(mContext, 0, mBackgroundIntent, 0); | ||
|
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| mTimer = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE); | ||
| mTimer.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), 7 * 1000, mPendingIntent); | ||
|
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| mState = true; | ||
| } | ||
|
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| public final void stopService() { | ||
|
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| if (mBackgroundIntent == null || mTimer == null || mPendingIntent == null) { | ||
| // Nothing is running | ||
| mState = false; | ||
| Log.e("Aero", "Service wasn't even running!"); | ||
| return; | ||
| } else { | ||
|
|
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| // Cleanup; | ||
| mContext.stopService(mBackgroundIntent); | ||
| mTimer.cancel(mPendingIntent); | ||
|
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| mTimer = null; | ||
| mBackgroundIntent = null; | ||
| mPendingIntent = null; | ||
| mState = false; | ||
| } | ||
| Log.e("Aero", "Service should be stopped now!"); | ||
| } | ||
|
|
||
| } | ||
| package com.aero.control.service; | ||
|
|
||
| import android.app.AlarmManager; | ||
| import android.app.PendingIntent; | ||
| import android.content.Context; | ||
| import android.content.Intent; | ||
| import android.content.SharedPreferences; | ||
| import android.preference.PreferenceManager; | ||
| import android.util.Log; | ||
|
|
||
| import java.util.Calendar; | ||
|
|
||
| /** | ||
| * Created by Alexander Christ on 29.05.14. | ||
| */ | ||
| public class PerAppServiceHelper { | ||
|
|
||
| private Intent mBackgroundIntent = null; | ||
| private AlarmManager mTimer = null; | ||
| private PendingIntent mPendingIntent = null; | ||
| private SharedPreferences mPrefs; | ||
| private Context mContext; | ||
| private boolean mState; | ||
|
|
||
| public PerAppServiceHelper(Context context) { | ||
| this.mContext = context; | ||
| mBackgroundIntent = new Intent(mContext, PerAppService.class); | ||
| mPrefs = PreferenceManager.getDefaultSharedPreferences(mContext); | ||
| } | ||
|
|
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| public final void setState(boolean state) { mState = state; } | ||
|
|
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| public final boolean getState() { | ||
| return mState; | ||
| } | ||
|
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| public final boolean shouldBeStarted() { | ||
|
|
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| final boolean tmp = mPrefs.getBoolean("per_app_service", false); | ||
|
|
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| if (!tmp) | ||
| setState(false); | ||
| else if (tmp) | ||
| setState(true); | ||
|
|
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| return getState(); | ||
| } | ||
|
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| public final void startService() { | ||
|
|
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| /* Start Service */ | ||
| final Calendar cal = Calendar.getInstance(); | ||
| Log.e("Aero", "Service should be started now!"); | ||
| mBackgroundIntent = new Intent(mContext, PerAppService.class); | ||
| mContext.startService(mBackgroundIntent); | ||
| mPendingIntent = PendingIntent.getService(mContext, 0, mBackgroundIntent, 0); | ||
|
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| mTimer = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE); | ||
| mTimer.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), 7 * 1000, mPendingIntent); | ||
|
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| setState(true); | ||
| } | ||
|
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| public final void stopService() { | ||
|
|
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| if (mBackgroundIntent == null || mTimer == null || mPendingIntent == null) { | ||
| // Nothing is running | ||
| Log.e("Aero", "Service wasn't even running!"); | ||
| return; | ||
| } else { | ||
|
|
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| // Cleanup; | ||
| mContext.stopService(mBackgroundIntent); | ||
| mTimer.cancel(mPendingIntent); | ||
|
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| mTimer = null; | ||
| mBackgroundIntent = null; | ||
| mPendingIntent = null; | ||
| } | ||
| setState(false); | ||
| Log.e("Aero", "Service should be stopped now!"); | ||
| } | ||
| } |