Gallery and fullscreen ImageView, problem in putting them together

我会尽量说清楚。

Here What I am trying to do

For this purspose and for a better user experience, I thought of a Gallery. Untill there everything is OK!

问题

问题是,在适配器的getview函数中,它只使用我在库中的第一个图像的gallery.layoutParams。也就是说,如果第一张图片是一幅风景画,而第二张图片是一幅肖像画,那么第二张图片将显示为风景画,与第一张图片的尺寸相同。我确实重置了gallery.layoutParams,但这并不重要,它仍然具有第一个ImageView的layoutParams。

代码

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

        ImageView im = new ImageView(mContext);

        Bitmap bm = BitmapFactory.decodeByteArray(gallery.get(position).mContent, 0, gallery.get(position).mContent.length);
        im.setImageBitmap(bm);

        int width = 0;
        int height = 0;

        if (bm.getHeight() < bm.getWidth()) {
            width = getWindowManager().getDefaultDisplay().getWidth();
            height = bm.getHeight() * width / bm.getWidth();
        }
        else {
            height = getWindowManager().getDefaultDisplay().getHeight();
            width = bm.getWidth() * height/ bm.getHeight();
                }

        Gallery.LayoutParams lp = new Gallery.LayoutParams(width, height);
        im.setLayoutParams(lp);

        return im;
}

If any of you see why I would be really please to know the answer,