我该如何解决这个 java.outOfMemoryError答案

【问题标题】：How do I solve this java.outOfMemoryError我该如何解决这个 java.outOfMemoryError
【发布时间】：2014-04-19 04:30:41
【问题描述】：

我正在尝试滚动列表活动，但它很迟钝然后崩溃，这是我的自定义适配器代码：

public class CustomSearch extends ArrayAdapter<SearchFItem> {
    private List<SearchFItem> data;
    Context context;




    private static class ViewHolder {
        ImageView imageView1;
        TextView Name;
    }



    public CustomSearch(Context context, int textViewResourceId,
            List<SearchFItem> data) {
        super(context, textViewResourceId, data);


        this.data = data;
        this.context = context;

    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        SearchFItem item = data.get(position);
        ViewHolder holder = null;

        View v = convertView;
        if (v == null) {
            v = LayoutInflater.from(getContext()).inflate(
                    R.layout.friends_view, null);
            holder = new ViewHolder();
            holder.imageView1 = (ImageView) v.findViewById(R.id.proView1);
            holder.Name = (TextView) v.findViewById(R.id.nameView1);
        } else {
            holder = new ViewHolder();
            holder.imageView1 = (ImageView) v.findViewById(R.id.proView1);
            holder.Name = (TextView) v.findViewById(R.id.nameView1);
        }
        final byte[] encodeByte = Base64.decode(item.getProfPic(),
                Base64.DEFAULT);

        final Bitmap profpic = BitmapFactory.decodeByteArray(encodeByte, 0,
                encodeByte.length);
        holder.imageView1.setImageBitmap(profpic);
        final String name = item.getName();
        holder.Name.setText(name);

        return v;
    }


}

这是我的错误代码：

04-19 00:16:24.540: E/AndroidRuntime(1709): FATAL EXCEPTION: main
04-19 00:16:24.540: E/AndroidRuntime(1709): Process: com.example.whiteboard, PID: 1709
04-19 00:16:24.540: E/AndroidRuntime(1709): java.lang.OutOfMemoryError
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.graphics.BitmapFactory.nativeDecodeByteArray(Native Method)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.graphics.BitmapFactory.decodeByteArray(BitmapFactory.java:500)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.graphics.BitmapFactory.decodeByteArray(BitmapFactory.java:523)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at com.example.whiteboard.CustomSearch.getView(CustomSearch.java:91)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.widget.AbsListView.obtainView(AbsListView.java:2240)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.widget.ListView.makeAndAddView(ListView.java:1790)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.widget.ListView.fillUp(ListView.java:725)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.widget.ListView.fillGap(ListView.java:664)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.widget.AbsListView.trackMotionScroll(AbsListView.java:5136)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.widget.AbsListView.scrollIfNeeded(AbsListView.java:3236)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.widget.AbsListView.onTouchMove(AbsListView.java:3580)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.widget.AbsListView.onTouchEvent(AbsListView.java:3424)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.View.dispatchTouchEvent(View.java:7706)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2210)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1945)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2068)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1515)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.app.Activity.dispatchTouchEvent(Activity.java:2458)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2016)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.View.dispatchPointerEvent(View.java:7886)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:3954)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:3833)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3399)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3449)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3418)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3525)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3426)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3582)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3399)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3449)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3418)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3426)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3399)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5602)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5582)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5553)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:5682)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.os.MessageQueue.nativePollOnce(Native Method)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.os.MessageQueue.next(MessageQueue.java:138)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.os.Looper.loop(Looper.java:123)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at android.app.ActivityThread.main(ActivityThread.java:5017)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at java.lang.reflect.Method.invokeNative(Native Method)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at java.lang.reflect.Method.invoke(Method.java:515)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
04-19 00:16:24.540: E/AndroidRuntime(1709):     at dalvik.system.NativeStart.main(Native Method)

感谢您的帮助。我一直在这个问题上停留了一段时间。但这是试图加载配置文件列表。

【问题讨论】：

压缩你的图片..因为你得到这个错误。
在您的情况下，您正在尝试加载高分辨率图像..我建议 Loading Large Bitmaps Efficiently 或者您可以使用 Picasso 或 Uil 库来避免您的负担

标签： java android

【解决方案1】：

如果您有高分辨率图像，您应该根据不同的设备缩小它们以加载图像，而不会遇到内存问题。

在您的情况下，某些手机在第一次运行时可能不会表现出相同的行为，但最终（这是它变得“滞后”的部分），如果不处理优化的图像加载解决方案，应用程序将崩溃.

检查更多关于“内存问题”：

Load a Scaled Down Version into Memory 下的主题。
Android developer optimize bitmaps help
Out of memory error on Android

关于如何避免它们：
How to avoid an out of memory error while using bitmaps in Android

概览：
Best practices listed on a blog
More of memory leaks - overall

在为您的图像视图设置位图之前，即：

holder.imageView1.setImageBitmap(profpic);

获取缩放位图或尝试其他选项，例如 inSampleSizeref: inSampleSize，请检查您的解决方案如何影响图像质量。
Reference: inSampleSize

【讨论】：