我的代码适用于较小的文件。当我尝试使用具有较大文件大小的高分辨率图像时，它无法保存问题
Helper类有助于将图像保存在设备中，但有时不会将图像保存在给定的文件夹中，图像会转到Pictures文件夹，而其他情况是当我使用3 Mb图像时无法保存。
public class SaveImageHelper implements Target {
private Context context;
private WeakReference<AlertDialog> alertDialogWeakReference;
private WeakReference<ContentResolver> contentResolverWeakReference;
private String name, desc, file_path;
public SaveImageHelper(Context context, AlertDialog alertDialog, ContentResolver contentResolver, String name, String desc) {
this.context = context;
this.alertDialogWeakReference = new WeakReference<AlertDialog>(alertDialog);
this.contentResolverWeakReference = new WeakReference<ContentResolver>(contentResolver);
this.name = name;
this.desc = desc;
}
@Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
ContentResolver r = contentResolverWeakReference.get();
AlertDialog alertDialog = alertDialogWeakReference.get();
if (r != null)
file_path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/CG";
File dir = new File(file_path);
if (!dir.exists()) {
dir.mkdir();
}
File file = new File(dir, name);
FileOutputStream fOut;
try {
MediaStore.Images.Media.insertImage(r, bitmap, name, desc);
fOut = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.PNG, 100, fOut);
fOut.flush();
fOut.close();
} catch (Exception e) {
e.printStackTrace();
}
alertDialog.dismiss();
Toast.makeText(context, "Download succeed ", Toast.LENGTH_SHORT).show();
}
@Override
public void onBitmapFailed(Drawable errorDrawable) {
}
@Override
public void onPrepareLoad(Drawable placeHolderDrawable) {
}
}