内存泄漏android

Question

我的应用程序有一个很大的问题，因为它经常崩溃，但从来没有在同一个地方。

它工作正常之前，但我有检查语言的每个应用程序中重复的方法。我决定把方法放在一个名为Utils的静态类中，也许这就是问题所在？

这里是我所有的活动是如何开始：

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); 

}

这是否做内存泄漏？我应该避免使用这个静态类吗？我怎么能不重复相同的代码20次？

的错误，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 

它是在谈论一个位图，但这里的唯一一句位图可以是背景图片是所有的活动一样，但我怎么能解决？

谢谢

Answer 1

我应该避免使用这个静态类吗？

我认为使用静态类是可以的，但是您必须记住，您使用的上下文只能在应用程序或活动对象的生命周期内使用。这意味着，如果您访问上下文对象并且它所连接的原始对象已被销毁，您可能会得到空例外。

我怎么不不重复相同的代码20次？

这样做的一种方法是创建一个基本的Activity类，它包含所有活动中需要完成的所有常见事项。然后，让每个独特的活动扩展这个常见的Activity类。

例如，在您共同活动类：

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); 

    } 
    ... 
} 

而在你的活动课：

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

后审查日志，我想有一些问题与您tyring膨胀的XML文件。