Question

我的场景是，我在数据库SQLite中有一些数据。我可以正确地获取数据，

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();

        }

这里我在arr喜欢，

中正确获取了所有数据

arr [0]：abcb，hjhj，jkshdf，hdjf，ghsg，aghgh，

arr [1]：klkl，sdjk，jkji，iui，jiji，jij，

。   。

arr [n]：qw，rwer，re，tr，yty，uyu，rtr，ter，etr，yrt，ytr

ie，每个位置都有10到30个数据comma(,)。 total arr.length is 1322

获取该数据后，我需要对这些数据进行一些操作，如下所示，

我需要split(",")基于comma(,)并添加到单List，直到数组达到n'th位置。
最后我的输出应该是，


list [0]：abcb

list [1]：hjhj

list [2]：jkshdf

...

list [n-1]：yrt

list [n]：ytr

我认为已经做得正确了。但它会出现Throwing OutOfMemoryError

之类的错误

我的代码是，

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());

此代码提供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)

如何解决这个问题??。

Answer 1

这个for循环永远不会终止，仔细看看最后一部分：

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

将i++更改为j++以修复此错误。

抛出OutOfMemoryError Android

1 个答案: