Nativescript doInBackground投げ捨てられてOutOfMemoryエラーが発生する

Question

私はnativescriptと開発プログラムで数ヶ月の新機能です。同じエラーが発生し、radListビューとWeb画像キャッシュプラグインを使用しています。私たちは500kbほどの製品とその画像と画像を送るためのAPIを手に入れました。そして私は彼らのカテゴリーからタブを作っています。カテゴリーIでは、それぞれのカテゴリーのリストビューを作成し、そのカテゴリー内の商品をリストしています。そのような私のコード。

var tabView = page.getViewById("tabViewContainer"); var meal_list = config.meal_list; meal_list.forEach(function (item) { var items = new observable_array_1.ObservableArray(); item.meal_list.forEach(function (item2) { items.push(new DataItemWithImage(item2.meal_id, item2.meal_name, item2.meal_cost,"http://sezginserpen.com.tr/test_image/" + item2.meal_id + ".jpg")); // items.push(new DataItemWithImage(item2.meal_id, item2.meal_name, item2.meal_cost,"http://pngimg.com/upload/pizza_PNG7132.png")); }); var wrapLayout = new wrapLayoutModule.WrapLayout(); var radListView = new listViewModule.RadListView(); var layoutBase = new listViewModule.ListViewGridLayout(); layoutBase.scrollDirection = "Vertical"; layoutBase.spanCount = 2; wrapLayout.className = "item"; wrapLayout.orientation = "horizontal"; radListView.listViewLayout = layoutBase; radListView.items = items;//<IC:WebImage stretch="fill" height="250" class="my-image-1" src="{{ image }}></IC:WebImage> radListView.itemTemplate = '<Border xmlns:IC="nativescript-web-image-cache" borderWidth="0.5" borderColor="lightgray"><stack-layout orientation="vertical" height="250" ><IC:WebImage horizontalAlignment="center" src="{{ image }}"></IC:WebImage><stack-layout width="100%" height="50%"> <label id="product_id_label" text="{{ id }}" style="visibility: collapsed" /><label class="align_center product_label" textWrap="true" text="{{ itemName }}" /> <label class="align_center product_label" textWrap="true" style="color:lightgray" text="{{ itemDescription }}" /> <Border borderWidth="1" borderColor="green" borderRadius="2" style="height:22%;width:95%"> <label tap="add_to_basket" class="align_center" style="background-color:white;color:green;" text="Sepete Ekle" /> </Border> </stack-layout> </stack-layout> </Border>'; wrapLayout.addChild(radListView); var tabViewItem = new tabViewModule.TabViewItem(); tabViewItem.title = item.category.category_name, tabViewItem.view = wrapLayout; var tabView = page.getViewById("tabViewContainer"); tabView.items.push(tabViewItem); });

やXML等。

<drawer:rad-side-drawer id="drawer"> <drawer:rad-side-drawer.mainContent> <!-- Home page contents --> <stack-layout loaded="contentLoaded"> <TabView id="tabViewContainer" selectedIndex="{{ index }}" selectedColor="#d43b2b" selectedIndexChanged="change" tabsBackgroundColor="#ffffff" > <TabView.items> </TabView.items> </TabView> </stack-layout> </drawer:rad-side-drawer.mainContent> <drawer:rad-side-drawer.drawerContent> <widgets:drawer-content /> </drawer:rad-side-drawer.drawerContent> </drawer:rad-side-drawer>

これを引き起こして何のための任意のアイデア？私はımagecacheを使用していますが、毎回これがあります。そして、私のスタックTRACE1の1：

      java.lang.RuntimeException: An error occurred while executing doInBackground() 
at android.os.AsyncTask$3.done(AsyncTask.java:309) 
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354) 
at java.util.concurrent.FutureTask.setException(FutureTask.java:223) 
at java.util.concurrent.FutureTask.run(FutureTask.java:242) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
at java.lang.Thread.run(Thread.java:818)Caused by: java.lang.OutOfMemoryError: Failed to allocate a 14745612 byte allocation with 12939040 free bytes and 12MB until OOM 
at dalvik.system.VMRuntime.newNonMovableArray(Native Method) 
at android.graphics.BitmapFactory.nativeDecodeByteArray(Native Method) 
at android.graphics.BitmapFactory.decodeByteArray(BitmapFactory.java:763) 
at org.nativescript.widgets.Async$Http$RequestResult.readResponseStream(Async.java:225) 
at org.nativescript.widgets.Async$Http$HttpRequestTask.doInBackground(Async.java:303) 
at org.nativescript.widgets.Async$Http$HttpRequestTask.doInBackground(Async.java:253) 
at android.os.AsyncTask$2.call(AsyncTask.java:295) 
at java.util.concurrent.FutureTask.run(FutureTask.java:237) 
... 3 more 

Trace2：

java.lang.OutOfMemoryError: Failed to allocate a 1508364 byte allocation with 301952 free bytes and 294KB until OOM 
at dalvik.system.VMRuntime.newNonMovableArray(Native Method) 
at android.graphics.Bitmap.nativeCreate(Native Method) 
at android.graphics.Bitmap.createBitmap(Bitmap.java:975) 
at android.graphics.Bitmap.createBitmap(Bitmap.java:946) 
at android.graphics.Bitmap.createBitmap(Bitmap.java:913) 
at com.facebook.imagepipeline.memory.BitmapPool.alloc(BitmapPool.java:55) 
at com.facebook.imagepipeline.memory.BitmapPool.alloc(BitmapPool.java:30) 
at com.facebook.imagepipeline.memory.BasePool.get(BasePool.java:259) 
at com.facebook.imagepipeline.platform.ArtDecoder.decodeStaticImageFromStream(ArtDecoder.java:137) 
at com.facebook.imagepipeline.platform.ArtDecoder.decodeFromEncodedImage(ArtDecoder.java:81) 
at com.facebook.imagepipeline.decoder.ImageDecoder.decodeStaticImage(ImageDecoder.java:128) 
at com.facebook.imagepipeline.decoder.ImageDecoder.decodeImage(ImageDecoder.java:94) 
at com.facebook.imagepipeline.producers.DecodeProducer$ProgressiveDecoder.doDecode(DecodeProducer.java:194) 
at com.facebook.imagepipeline.producers.DecodeProducer$ProgressiveDecoder.access$200(DecodeProducer.java:97) 
at com.facebook.imagepipeline.producers.DecodeProducer$ProgressiveDecoder$1.run(DecodeProducer.java:129) 
at com.facebook.imagepipeline.producers.JobScheduler.doJob(JobScheduler.java:207) 
at com.facebook.imagepipeline.producers.JobScheduler.access$000(JobScheduler.java:27) 
at com.facebook.imagepipeline.producers.JobScheduler$1.run(JobScheduler.java:78) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
at com.facebook.imagepipeline.core.PriorityThreadFactory$1.run(PriorityThreadFactory.java:43) 
at java.lang.Thread.run(Thread.java:818) 

は、この1つは別であり、このERORタイプについてませんが、私はあまりにもこれを得た：

      java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.bringToFront()' on a null object reference 
at com.telerik.android.primitives.widget.sidedrawer.transitions.DrawerTransitionBase.setProgress(DrawerTransitionBase.java:77) 
at com.telerik.android.primitives.widget.sidedrawer.transitions.DrawerTransitionBase.onEnded(DrawerTransitionBase.java:226) 
at com.telerik.android.primitives.widget.sidedrawer.transitions.DrawerTransitionBase.run(DrawerTransitionBase.java:221) 
at android.view.ViewPropertyAnimator$AnimatorEventListener.onAnimationEnd(ViewPropertyAnimator.java:1119) 
at android.animation.ValueAnimator.endAnimation(ValueAnimator.java:1239) 
at android.animation.ValueAnimator$AnimationHandler.doAnimationFrame(ValueAnimator.java:766) 
at android.animation.ValueAnimator$AnimationHandler$1.run(ValueAnimator.java:801) 
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:920) 
at android.view.Choreographer.doCallbacks(Choreographer.java:695) 
at android.view.Choreographer.doFrame(Choreographer.java:628) 
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:906) 
at android.os.Handler.handleCallback(Handler.java:739) 
at android.os.Handler.dispatchMessage(Handler.java:95) 
at android.os.Looper.loop(Looper.java:158) 
at android.app.ActivityThread.main(ActivityThread.java:7229) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120) 

と任意のアイデアどのように私はこのタイプのエラーをキャッチできますか？

ありがとうございます。

Answer 1

以下の添付の例は、iOSとAndroidの両方でNativeScirptのタブビューからタブを削除する方法を示しています。

メインpage.xml

<Page xmlns="http://schemas.nativescript.org/tns.xsd" navigatingTo="navigatingTo"> 
    <TabView id="tabViewContainer" loaded="tabviewLoaded"> 
     <TabView.items> 
      <TabViewItem title=""> 
       <TabViewItem.view> 
        <Label text="This is Label in Tab 1" /> 
       </TabViewItem.view> 
      </TabViewItem> 
      <TabViewItem title=""> 
       <TabViewItem.view> 
        <Label text="This is Label in Tab 2" /> 
       </TabViewItem.view> 
      </TabViewItem> 
     </TabView.items> 
    </TabView> 
</Page> 

メインpage.ts

import { EventData } from "data/observable"; 
    import { Page } from "ui/page"; 
    import {TabView} from "ui/tab-view"; 
    import {isAndroid, isIOS} from "platform" 



    export function tabviewLoaded(args:EventData){ 

     var tabview =<any> args.object; 

     if(isAndroid){ 
      var tabViewgrid = tabview._grid; 
      console.dump(tabViewgrid.removeViewAt(0)); 
     } 

     if(isIOS){ 
      tabview._ios.tabBar.hidden = true; 
     } 
    } 

メインpage.js

var platform_1 = require("platform"); 
function tabviewLoaded(args) { 
    var tabview = args.object; 
    if (platform_1.isAndroid) { 
     var tabViewgrid = tabview._grid; 
     console.dump(tabViewgrid.removeViewAt(0)); 
    } 
    if (platform_1.isIOS) { 
     tabview._ios.tabBar.hidden = true; 
    } 
} 
exports.tabviewLoaded = tabviewLoaded;