【发布时间】：2013-07-04 21:37:23
【问题描述】：
我在派生到 AsyncTask 类和 onPostExecute 方法的应用程序中存在内存泄漏。 onPostExcecute 方法接收 9 个按比例缩小的位图并将它们放入滚动视图中。滚动视图又被放入警报对话框中。
有什么建议可以阻止这种内存泄漏吗？我试图对所有 9 个位图进行弱引用，但没有成功。
cahcing 是替代品吗？
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();
}
【问题讨论】：
标签： android memory-leaks android-asynctask weak-references