拋出OutOfMemoryError Android

Question

我的情景是，我有一些數據在數據庫SQLite。我能得到數據的正確的，

Cursor c0 = OCTDBHelper.myDataBase.rawQuery("SELECT DISTINCT ALIAS FROM ICT32 where ALIAS NOT NULL", null); 
Log.i("IC-Count", "IC-Count : " + c0.getCount()); 
String arr[] =new String[c0.getCount()]; 

    c0.moveToFirst(); 
     for(int i = 0; i < c0.getCount(); i++) 
     { 
      arr[i] = c0.getString(0); 
      c0.moveToNext(); 

     } 

在這裏，我得到了所有數據的正確arr一樣，

ARR [0]：ABCB，hjhj，jkshdf，hdjf，GHSG，aghgh，

arr [1]：klkl，sdjk，jkji，iui，jiji，jij，

。 。 。

ARR [N]：QW，rwer，重，TR，YTY，烏尤，RTR，叔，ETR，YRT，YTR

ie，每個位置具有10-30的數據與comma(,)。 total arr.length is 1322

獲取數據後，我需要做一些操作與數據遵循，

• 我需要根據comma(,)split(",")並加入到單List直到陣列達到n'th位置。

• 最後我的輸出應該是，

  列表[0]：ABCB

  列表[1]：hjhj

  名單[2]：jkshdf

  ...

  list [n-1]：yrt

  列表[N]：YTR

我認爲已經正確做到了。但它給像Throwing OutOfMemoryError

我的代碼錯誤，

Cursor c0 = OCTDBHelper.myDataBase.rawQuery("SELECT DISTINCT ALIAS FROM ICT32 where ALIAS NOT NULL", null); 

Log.i("IC-Count", "IC-Count : " + c0.getCount()); 
ArrayList<String> tmp = new ArrayList<>(); 
c0.moveToFirst(); 
     for(int i = 0; i < c0.getCount(); i++) 
      { 
       String arr[] = c0.getString(0).split(","); 
        for(int j= 0; j< arr.length;i++) 
          { 
           if(!arr[j].equals(",")) 
            { 
             tmp.add(arr[j]); 
            } 
          } 
        c0.moveToNext(); 

      } 

Log.i("Alias" , "count : " +tmp.size()); 

這個代碼給出Throwing OutOfMemoryError

logcat的

FATAL EXCEPTION: main 
Process: estec.android.mvi32, PID: 11005 
java.lang.OutOfMemoryError: Failed to allocate a 103059952 byte allocation with 16777120 free bytes and 58MB until OOM 
at java.util.ArrayList.add(ArrayList.java:118) 
at estec.android.mvi32.OCTActivity.onOptionsItemSelected(OCTActivity.java:294) 
at android.app.Activity.onMenuItemSelected(Activity.java:2882) 
at android.support.v4.app.FragmentActivity.onMenuItemSelected(FragmentActivity.java:353) 
at android.support.v7.app.AppCompatActivity.onMenuItemSelected(AppCompatActivity.java:144) 
at android.support.v7.internal.view.WindowCallbackWrapper.onMenuItemSelected(WindowCallbackWrapper.java:99) 
at android.support.v7.app.AppCompatDelegateImplV7.onMenuItemSelected(AppCompatDelegateImplV7.java:541) 
at android.support.v7.internal.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:811) 
at android.support.v7.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:153) 
at android.support.v7.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:958) 
at android.support.v7.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:948) 
at android.support.v7.internal.view.menu.MenuPopupHelper.onItemClick(MenuPopupHelper.java:187) 
at android.widget.AdapterView.performItemClick(AdapterView.java:300) 
at android.widget.AbsListView.performItemClick(AbsListView.java:1143) 
at android.widget.AbsListView$PerformClick.run(AbsListView.java:3044) 
at android.widget.AbsListView.onTouchUp(AbsListView.java:3872) 
at android.widget.AbsListView.onTouchEvent(AbsListView.java:3627) 
at android.view.View.dispatchTouchEvent(View.java:8388) 
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2424) 
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2158) 
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2430) 
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2172) 
at android.widget.PopupWindow$PopupViewContainer.dispatchTouchEvent(PopupWindow.java:1682) 
at android.view.View.dispatchPointerEvent(View.java:8578) 
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4021) 
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:3887) 
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3449) 
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3502) 
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3468) 
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3578) 
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3476) 
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3635) 
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3449) 
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3502) 
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3468) 
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3476) 
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3449) 
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5701) 
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5675) 
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5646) 
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:5791) 
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185) 
at android.os.MessageQueue.nativePollOnce(Native Method) 
at android.os.MessageQueue.next(MessageQueue.java:143) 
at android.os.Looper.loop(Looper.java:122) 
at android.app.ActivityThread.main(ActivityThread.java:5253) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 

如何解決這個問題？。

Answer 1

for循環永遠不會終止，在最後一部分看起來接近：

for(int j= 0; j< arr.length;i++) 

更改i++到j++來修復這個bug。