Nativescript doInBackground拋出並導致OutOfMemory錯誤

我是nativescript的新手，開發幾個月的程序。我得到了同樣的錯誤，我正在使用radList視圖和Web圖像緩存插件。我們獲得了發送產品及其圖像和圖像大約500kb的api。我正在從他們的類別製作標籤，並在類別中爲每個類別製作列表視圖，並在其中列出產品。我的代碼就是這樣;Nativescript doInBackground拋出並導致OutOfMemory錯誤

和XML等;

<drawer:rad-side-drawer id="drawer"> <drawer:rad-side-drawer.mainContent>  <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>

任何想法是什麼造成的？我正在使用ımagecache但每次都得到這個。而我的堆棧TRACE1之一：

      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)

這一個是另一個和不這個eror的類型，但我得到這個太：

      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)

而且任何想法關於如何捕獲這種類型的錯誤？

謝謝你的幫助。

來源

2016-09-02 Mete Alanlı

也許這個問題已經引起來裝載裏面的圖片列表視圖。作爲Android的解決方案，您可以使用nativescript-fresco -https：//github.com/NativeScript/nativescript-fresco插件在列表視圖中顯示圖像。你可以在這裏找到示例 - https://github.com/telerik/nativescript-ui-samples/blob/release/sdk/app/listview/item-layouts/item-layouts-grid.android.xml –

謝謝你的幫助和我已經使用IC WebCache圖像，包括Fresco和另一個插件İOS。我意識到這個錯誤來自一個名爲https://www.npmjs.com/package/nativescript-slides的插件，並且當我不使用這個插件時，即使是大圖片也沒有錯誤。只有錯誤導致大圖像例如4mb甚至更多:)你知道任何其他插件滑塊？ –

我無法找到另一個類似'nativescript-slides'的插件。我不確定這是否適用於您的項目，但是您可以使用「TabView」，它也支持在頁面之間滑動。 –

下面附加的例子顯示，你怎麼可以從TabView的在NativeScirpt刪除選項卡兩種iOS和Android。

主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>

主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; 
     } 
    }

主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;

來源

2016-09-10 10:03:00

我試過這個，它的工作良好，但有時我會再次得到錯誤doInBackground（）在android.os.AsyncTask $ 3.done（AsyncTask.java:309）像這樣和我無法解決:( –

Nativescript doInBackground拋出並導致OutOfMemory錯誤

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