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由ContentProvider给出IMAGE_ID,我如何获取它的缩略图路径?检索图像缩略图
Cursor c = this.managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, null, selection, null, null);
while (c.moveToNext()){
String title = c.getString(c.getColumnIndex(MediaStore.Images.ImageColumns.TITLE));
String description = c.getString(c.getColumnIndex(MediaStore.Images.ImageColumns.DESCRIPTION));
long imgId = c.getLong(c.getColumnIndex(MediaStore.Images.ImageColumns._ID));
... }