內存泄漏android

Question

我的應用程序有一個很大的問題，因爲它經常崩潰，但從來沒有在同一個地方。

它工作正常之前，但我有檢查語言的每個應用程序中重複的方法。我決定把方法放在一個名爲Utils的靜態類中，也許這就是問題所在？

這裏是我所有的活動是如何開始：

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    //set up idioma 
    sharedPrefs =PreferenceManager.getDefaultSharedPreferences(getApplicationContext()); 
    idioma = sharedPrefs.getString("listPref2", "catala"); 
    idioma=Utils.updateLanguage(getApplicationContext(), idioma); 

    setContentView(R.layout.list_event); 

}

這是否做內存泄漏？我應該避免使用這個靜態類嗎？我怎麼能不重複相同的代碼20次？

的錯誤，我得到：

06-28 15:24:31.411: INFO/ActivityManager(52): Starting activity: Intent { act=android.intent.action.VIEW cmp=com.tresipunt.butxaca.com/com.tresipunt.butxaca.AllEventsDetailsTabs (has extras) } 
06-28 15:24:31.551: ERROR/dalvikvm-heap(341): 2160000-byte external allocation too large for this process. 
06-28 15:24:31.551: ERROR/(341): VM won't let us allocate 2160000 bytes 
06-28 15:24:31.551: DEBUG/AndroidRuntime(341): Shutting down VM 
06-28 15:24:31.551: WARN/dalvikvm(341): threadid=3: thread exiting with uncaught exception (group=0x4001aa28) 
06-28 15:24:31.561: ERROR/AndroidRuntime(341): Uncaught handler: thread main exiting due to uncaught exception 
06-28 15:24:31.592: ERROR/AndroidRuntime(341): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tresipunt.butxaca.com/com.tresipunt.butxaca.AllEventsDetailsTabs}: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tresipunt.butxaca.com/com.tresipunt.butxaca.AllEventsDetailsTabList}: android.view.InflateException: Binary XML file line #21: Error inflating class java.lang.reflect.Constructor 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.ActivityThread.access$2100(ActivityThread.java:116) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.os.Handler.dispatchMessage(Handler.java:99) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.os.Looper.loop(Looper.java:123) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.ActivityThread.main(ActivityThread.java:4203) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at java.lang.reflect.Method.invokeNative(Native Method) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at java.lang.reflect.Method.invoke(Method.java:521) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at dalvik.system.NativeStart.main(Native Method) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341): Caused by: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tresipunt.butxaca.com/com.tresipunt.butxaca.AllEventsDetailsTabList}: android.view.InflateException: Binary XML file line #21: Error inflating class java.lang.reflect.Constructor 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.ActivityThread.startActivityNow(ActivityThread.java:2242) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.LocalActivityManager.moveToState(LocalActivityManager.java:127) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.LocalActivityManager.startActivity(LocalActivityManager.java:339) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.widget.TabHost$IntentContentStrategy.getContentView(TabHost.java:631) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.widget.TabHost.setCurrentTab(TabHost.java:317) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.widget.TabHost.addTab(TabHost.java:210) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at com.tresipunt.butxaca.AllEventsDetailsTabs.onCreate(AllEventsDetailsTabs.java:101) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  ... 11 more 
06-28 15:24:31.592: ERROR/AndroidRuntime(341): Caused by: android.view.InflateException: Binary XML file line #21: Error inflating class java.lang.reflect.Constructor 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.view.LayoutInflater.createView(LayoutInflater.java:512) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:562) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.view.LayoutInflater.rInflate(LayoutInflater.java:617) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.view.LayoutInflater.inflate(LayoutInflater.java:407) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.view.LayoutInflater.inflate(LayoutInflater.java:320) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.view.LayoutInflater.inflate(LayoutInflater.java:276) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:313) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.Activity.setContentView(Activity.java:1620) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at com.tresipunt.butxaca.AllEventsDetailsTabList.onCreate(AllEventsDetailsTabList.java:117) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  ... 20 more 
06-28 15:24:31.592: ERROR/AndroidRuntime(341): Caused by: java.lang.reflect.InvocationTargetException 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.widget.ListView.<init>(ListView.java:148) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at java.lang.reflect.Constructor.constructNative(Native Method) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at java.lang.reflect.Constructor.newInstance(Constructor.java:446) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.view.LayoutInflater.createView(LayoutInflater.java:499) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  ... 31 more 
06-28 15:24:31.592: ERROR/AndroidRuntime(341): Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.graphics.Bitmap.nativeCreate(Native Method) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.graphics.Bitmap.createBitmap(Bitmap.java:468) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.graphics.Bitmap.createBitmap(Bitmap.java:435) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.graphics.Bitmap.createScaledBitmap(Bitmap.java:340) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:476) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:322) 
06-28 15:24:31.592: ERROR/AndroidRuntime(341):  at android.graphics.drawable.Drawable.createFromResourceStr 

它是在談論一個位圖，但這裏的唯一一句位圖可以是背景圖片是所有的活動一樣，但我怎麼能解決？

謝謝

Answer 1

我應該避免使用這個靜態類嗎？

我認爲使用靜態類是可以的，但是您必須記住，您使用的上下文只能在應用程序或活動對象的生命週期內使用。這意味着，如果您訪問上下文對象並且它所連接的原始對象已被銷燬，您可能會得到空例外。

我怎麼不不重複相同的代碼20次？

這樣做的一種方法是創建一個基本的Activity類，它包含所有活動中需要完成的所有常見事項。然後，讓每個獨特的活動擴展這個常見的Activity類。

例如，在您共同活動類：

public CommonActivityBase extends Activity { 
    public onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    //set up idioma 
    sharedPrefs =PreferenceManager.getDefaultSharedPreferences(getApplicationContext()); 
    idioma = sharedPrefs.getString("listPref2", "catala"); 
    idioma=Utils.updateLanguage(getApplicationContext(), idioma); 

    } 
    ... 
} 

而在你的活動課：

public ActivityA extends CommonActivityBase { 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstance); 
     .... // do other stuff specific to this activity 
     setContentView(R.layout.list_event); 
    } 
    .... 
} 

public ActivityB extends CommonActivityBase { 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstance); 
     .... // do other stuff specific to this activity 
     setContentView(R.layout.list_for_activity_b); 
    } 
    .... 
} 

Answer 2

後審查日誌，我想有一些問題與您tyring膨脹的XML文件。