Android 中用Intent提取缩略图和原始图像

提取图像的Thumbnail:

Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null); 　　intent.setType("image/*"); 　　intent.putExtra("return-data", true); 　　startActivityForResult(intent, REQUEST_CODE_PHOTO_PICKED); protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode != RESULT_OK) { 　　return; } Bitmap bitmap = null; ContentResolver resolver = getContentResolver(); if (requestCode == REQUEST_CODE_PHOTO_PICKED) { 　　final Bundle extras = data.getExtras(); 　　if (extras != null) 　　bitmap = extras.getParcelable("data"); } } //此方法返回的data 必须小于100k
获取原图：

Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null); 　　intent.setType("image/*"); 　　startActivityForResult(intent, REQUEST_CODE_PHOTO_PICKED); protected void onActivityResult(int requestCode, int resultCode, Intent data) { 　　if (resultCode != RESULT_OK) { return; 　　} 　　Bitmap bitmap = null; 　　ContentResolver resolver = getContentResolver(); 　　if (requestCode == REQUEST_CODE_PHOTO_PICKED) { 　　try { 　　Uri originalUri = data.getData(); 　　Uri thumb = Uri.withAppendedPath(MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI, originalUri.getLastPathSegment()); 　　bitmap = MediaStore.Images.Media.getBitmap(resolver, thumb); 　　} catch (IOException e) { 　　 } 　　} }