我的应用程序中有一个内存泄漏,我派生到AsyncTask-class和onPostExecute-method中。onPostExcecute方法接收9个按比例缩小的位图,并将这些位图放入滚动视图中。滚动视图又被放入一个警告对话框中。
有什么建议可以阻止这种内存泄漏吗?我已经尝试对所有9个位图进行弱引用,但都没有成功。
cahcing是另一种选择吗?
protected void onPostExecute(Bitmap[] bitmap) {
if (view == null) {
view = factory.inflate(R.layout.alertviews4, null);
alertadd = new AlertDialog.Builder(context);
}
WeakReference <Bitmap> weakBitmap0 = new WeakReference <Bitmap> (bitmap[0]);
WeakReference <Bitmap> weakBitmap1 = new WeakReference <Bitmap> (bitmap[1]);
WeakReference <Bitmap> weakBitmap2 = new WeakReference <Bitmap> (bitmap[2]);
WeakReference <Bitmap> weakBitmap3 = new WeakReference <Bitmap> (bitmap[3]);
WeakReference <Bitmap> weakBitmap4 = new WeakReference <Bitmap> (bitmap[4]);
WeakReference <Bitmap> weakBitmap5 = new WeakReference <Bitmap> (bitmap[5]);
WeakReference <Bitmap> weakBitmap6 = new WeakReference <Bitmap> (bitmap[6]);
WeakReference <Bitmap> weakBitmap7 = new WeakReference <Bitmap> (bitmap[7]);
WeakReference <Bitmap> weakBitmap8 = new WeakReference <Bitmap> (bitmap[8]);
mImage = (ImageView) view.findViewById(R.id.img1);
mImage.setImageBitmap(weakBitmap0.get());
mImage = (ImageView) view.findViewById(R.id.img2);
mImage.setImageBitmap(weakBitmap1.get());
mImage = (ImageView) view.findViewById(R.id.img3);
mImage.setImageBitmap(weakBitmap2.get());
mImage = (ImageView) view.findViewById(R.id.img4);
mImage.setImageBitmap(weakBitmap3.get());
mImage = (ImageView) view.findViewById(R.id.img5);
mImage.setImageBitmap(weakBitmap4.get());
mImage = (ImageView) view.findViewById(R.id.img6);
mImage.setImageBitmap(weakBitmap5.get());
mImage = (ImageView) view.findViewById(R.id.img7);
mImage.setImageBitmap(weakBitmap6.get());
mImage = (ImageView) view.findViewById(R.id.img8);
mImage.setImageBitmap(weakBitmap7.get());
mImage = (ImageView) view.findViewById(R.id.img9);
mImage.setImageBitmap(weakBitmap8.get());
alertadd.setView(view);
alertadd.setNeutralButton("Here!", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dlg, int sumthin) {
}
});
alertadd.show();}
发布于 2013-07-05 06:02:22
对于API级别低于11的应用程序接口,位图是一个困难的主题。它们被计算到应用程序的堆限制,而不是简单地由GC收集。最佳实践是调用bitmap.recycle()并将指针设为空,以允许GC收集引用。
https://stackoverflow.com/questions/17478380
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