android - 如何在 AlertDialog 中显示来自 GridView 的图像？

Question

mGridView.setOnItemClickListener(new OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> gridView, View view,
            int pos, long id) {

        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        builder.setView(view);
        builder.create().show();        

    }
});

当我尝试运行这段代码时，在我点击一个项目后，我得到一个异常:

我不想从其父项中删除 View 。我只想在 AlertDialog 中显示图像。有人可以提示我该怎么做吗？

Answer 1

试试这个...

    mGridView.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> gridView, View view,
                int pos, long id) {
            AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
            ImageView imageView = new ImageView(gridView.getContext());
            imageView.setScaleType(ImageView.ScaleType.CENTER);
            view.setDrawingCacheEnabled(true);
            view.buildDrawingCache();
            Bitmap bitmap = view.getDrawingCache();
            imageView.setImageBitmap(bitmap);
            builder.setView(imageView);
            builder.create().show();
        }
    });