我正在为我的应用使用通用图片加载器。我想将ViewPager显示的当前图像保存到SD卡，但是我下面的代码将错误的图像保存到SD卡。它只是随机保存图像。我需要知道如何检索图像的当前位图并保存它。我不知道获取当前图像的位图并将其保存到SD卡的任何其他替代方法。我目前获取位图的方式是通过＆＃34; Bitmap bitmap = loadedImage＆＃34;。非常感谢您的帮助。 Cheeers。
public class ImagePagerFragment extends BaseFragment implements View.OnClickListener {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fr_image_pager, container, false);
ViewPager pager = (ViewPager) rootView.findViewById(R.id.pager);
pager.setAdapter(new ImageAdapter());
pager.setCurrentItem(getArguments().getInt(Constants.Extra.IMAGE_POSITION, 0));
return rootView;
}
private class ImageAdapter extends PagerAdapter {
@Override
public Object instantiateItem(ViewGroup view, int position) {
final View imageLayout = inflater.inflate(R.layout.item_pager_image, view, false);
assert imageLayout != null;
final christ.triumphant.TouchImageView imageView = (christ.triumphant.TouchImageView) imageLayout.findViewById(R.id.imagei);
final ProgressBar spinner = (ProgressBar) imageLayout.findViewById(R.id.loading);
ImageLoader.getInstance().displayImage(imageUrls[position], imageView, options, new SimpleImageLoadingListener() {
..
@Override
public void onLoadingComplete(String imageUri, View view, final Bitmap loadedImage) {
spinner.setVisibility(View.GONE);
isave = (Button) getView().findViewById(R.id.save);
isave.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(final View view) {
Bitmap bitmap = loadedImage;
File folder = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Pictures/HD GOSPEL LOCKSCREENS");
File f = new File(folder, String.valueOf(System.currentTimeMillis()) + "HDGL.PNG");
try {
FileOutputStream out = new FileOutputStream(f);
bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
out.flush();
out.close();
Toast.makeText(getActivity(), "Image Successfully Saved", Toast.LENGTH_LONG).show();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
{
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
File ff = new File("file://"+ Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES));
Uri contentUri = Uri.fromFile(ff);
mediaScanIntent.setData(contentUri);
getActivity().sendBroadcast(mediaScanIntent);
}
else
{
getActivity().sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + Environment.getExternalStorageDirectory())));
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
ishare = (Button) getView().findViewById(R.id.share);
ishare.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(final View view) {
Bitmap icon = loadedImage;
Intent share = new Intent(Intent.ACTION_SEND);
share.setType("image/jpeg");
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
icon.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
File f = new File(Environment.getExternalStorageDirectory() + File.separator + "temporary_file.jpg");
try {
f.createNewFile();
FileOutputStream fo = new FileOutputStream(f);
fo.write(bytes.toByteArray());
} catch (IOException e) {
e.printStackTrace();
}
share.putExtra(Intent.EXTRA_STREAM, Uri.parse("file:///sdcard/temporary_file.jpg"));
startActivity(Intent.createChooser(share, "Share Image"));
Toast.makeText(getActivity(), "Image Successfully Shared", Toast.LENGTH_LONG).show();
}
});
}
});
view.addView(imageLayout, 0);
return imageLayout;
}
... ... ... }