Android的PagerAdapter ::获取当前项为位图 [英] Android PagerAdapter :: Get Current Item into bitmap
问题描述
我使用UniversalImageLoader我的应用程序。我的 ImageAdapte
研究延伸 PagerAdapter
。我需要currentImage为位图。通过回调methood 公共无效onLoadingComplete(位图loadedImage)
我收到的位图。但是,这并不是目前显示出位图图像。无论它是下一个图像或previous图像(取决于swaping)。这里是全code:
I am using UniversalImageLoader for my application. My ImageAdapte
r extends PagerAdapter
. I need currentImage as Bitmap. By callback methood public void onLoadingComplete(Bitmap loadedImage)
i am getting bitmap. But that is not that bitmap image currently showing. Either it is the next image or previous image (depending upon swaping). Here is the full code:
private class ImagePagerAdapter extends PagerAdapter {
private String[] images;
private LayoutInflater inflater;
ImagePagerAdapter(String[] images) {
this.images = images;
inflater = getLayoutInflater();
}
@Override
public void destroyItem(View container, int position, Object object) {
((ViewPager) container).removeView((View) object);
}
@Override
public void finishUpdate(View container) {
}
@Override
public int getCount() {
return images.length;
}
@Override
public Object instantiateItem(View view, int position) {
if (view != null) {
final View imageLayout = inflater.inflate(
R.layout.item_pager_image, null);
final ImageView imageView = (ImageView) imageLayout
.findViewById(R.id.image_item_pager);
imageLoader.displayImage(images[position], imageView, options,
new ImageLoadingListener() {
@Override
public void onLoadingStarted() {
}
@Override
public void onLoadingFailed(FailReason failReason) {
//On Loading Failed Logic
}
@Override
public void onLoadingComplete(Bitmap loadedImage) {
bitmap = loadedImage;
imgViewSetAsWp.setImageBitmap(bitmap);
}
@Override
public void onLoadingCancelled() {
// Do nothing
}
});
((ViewPager) view).addView(imageLayout, 0);
return imageLayout;
} else
return view;
}
@Override
//Other override methood of ImagePager
}
有没有办法得到适当的位图。
Is there any way to get the proper bitmap.
推荐答案
如何获得当前视图 - http://stackoverflow.com /一/九十一万三千七百六十二分之八百六十三万八千七百七十二
How to get current view - http://stackoverflow.com/a/8638772/913762
然后:
View currentView = ...
ImageView currentImageView = (ImageView) currentView.findViewById(...);
BitmapDrawable bd = (BitmapDrawable) currentImageView.getDrawable();
Bitmap bmp = bd.getBitmap();
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