图像处理：＆QUOT; dalvikvm：外部分配太大，此过程＆QUOT;错误 [英] Image Processing: "dalvikvm: external allocation too large for this process" error

问题描述

我有一个照片编辑应用程序。当我导入图像，它工作正常，但是，开辟编辑导致其崩溃的形象。

I have a photo editing app. When I import an image, it works fine but, opening up the image for editing causes it to crash.

这是logcat的输出：

This is the logcat output:

08-04 20:56:16.973: E/dalvikvm-heap(336): 810000-byte external allocation too large for this process.
08-04 20:56:17.073: I/dalvikvm-heap(336): Clamp target GC heap from 25.289MB to 24.000MB
08-04 20:56:17.073: E/GraphicsJNI(336): VM won't let us allocate 810000 bytes

更新::

    @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK
            && null != data) {
        Uri selectedImage = data.getData();
        String[] filePathColumn = { MediaStore.Images.Media.DATA };

        Cursor cursor = getContentResolver().query(selectedImage,
                filePathColumn, null, null, null);
        cursor.moveToFirst();

        int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
        String picturePath = cursor.getString(columnIndex);
        cursor.close();

        ImageView imageView = (ImageView) findViewById(R.id.ivPhoto);
        chosenBitmap = superDecodeFile(new File(picturePath));
        imageView.setBackgroundColor(0);
        Bitmap bMap =   Bitmap.createScaledBitmap(chosenBitmap, 500, 500, true);
        imageView.setImageBitmap(bMap);
    }

}

这是我的onResult code ..等等的ImageView的choosenBitmap显示器（ivPhoto） 我需要使用.recycle（）; 所以我腾出通过回收已经ImageView的一些内存.. 我在哪里使用.recycle（）; ？ 我试图改变.setBackgroundColor（0）;回收（）;但它不工作

this is my onResult code .. so the choosenBitmap displays on the imageView ( ivPhoto ) I need to use .recycle(); so i free up some memory by recycling the already imageView .. where do I use the .recycle(); ? I tried to change the .setBackgroundColor(0); to .recycle(); but it doesn't work

推荐答案

这是一个内存泄漏错误。

This is a memory leak error.

您的应用程序分配的大小〜24MB的堆。但是，您要编辑的图像比堆大小。

Your app is allocated a heap of size ~24MB. But the image you are trying to edit is larger than the heap size.

这是发生，因为你没有释放内存。 Android的Dalvik虚拟机不小心 GC 的-ing使用的应用程序的本地内存。所以，当在Android的图像时，则需要明确使用循环（）。这样就减少了本机内存。

This is happening because you are not freeing up the memory. Android's Dalvik VM does not take care of GC-ing the native memory used by the app. So, when dealing with images in Android, you need to explicitly use recycle(). This frees up the native memory.

有关更多deatils：<一href="http://stackoverflow.com/questions/2191407/changing-imageview-content-causes-outofmemoryerror">Changing ImageView的内容导致的OutOfMemoryError

For more deatils: Changing ImageView content causes OutOfMemoryError

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