如何在Android Q上将照片广播到画廊 [英] How to broadcast photo to gallery on Android Q
问题描述
我使用这些代码拍摄照片并将照片广播到画廊，它可以正常工作。
I use these code to take a photo and broadcast the photo to gallery, it works.
我发现我的广播功能使用 MediaStore .Images.ImageColumns.DATA 和 Intent.ACTION_MEDIA_SCANNER_SCAN_FILE ，这些已弃用！
I found that my broadcast function use MediaStore.Images.ImageColumns.DATA and Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, and these are deprecated!
如何在不使用 MediaStore.Images.ImageColumns.DATA 和 Intent.ACTION_MEDIA_SCANNER_SCAN_FILE 的情况下替换这些功能。
How can I replace these function without use MediaStore.Images.ImageColumns.DATA and Intent.ACTION_MEDIA_SCANNER_SCAN_FILE.
谢谢。
// set open camera button.
private void setCameraButton() {
cameraBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ActivityCompat.requestPermissions(PostActivity.this, mPermissionList, CAMERA_REQUEST_PERMISSION);
}
});
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode){
case 100: // camera.
if(grantResults.length > 0){
if (grantResults[0] == PackageManager.PERMISSION_GRANTED)
openCameraIntent();
else
Toast.makeText(this, "Please set permissions.", Toast.LENGTH_SHORT).show();
}
break;
...
}
}
private void openCameraIntent() {
Intent pictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (pictureIntent.resolveActivity(getPackageManager()) != null) {
String time = MyUtility.getSystemTaiwanDateAndTime();
photoFileName = "IMG_" + time;
File storageDir = new File(this.getExternalFilesDir(null).getAbsolutePath(), "myapp");
MyUtility.createAppFolder(storageDir); // create app folder.
photoFile = new File(this.getExternalFilesDir(null).getAbsolutePath(), "/myapp/" + photoFileName + ".jpg");
Uri photoUri = FileProvider.getUriForFile(this, getPackageName() + ".provider", photoFile);
pictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);
startActivityForResult(pictureIntent, IMAGE_CAPTURE_REQUEST_CODE);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == IMAGE_CAPTURE_REQUEST_CODE && resultCode == Activity.RESULT_OK) {
photoFilePath = photoFile.getAbsolutePath();
broadcastAddPhotoToGallery(photoFile, photoFileName, photoFilePath); // Want to use this function to broadcast photo to gallery.
...
}
...
}
private void broadcastAddPhotoToGallery(File _file, String _fileName, String _filePath) {
int sdkVersion = Build.VERSION.SDK_INT;
if(sdkVersion >= 28)
galleryAddPhotoAboveApi28(_fileName, _filePath);
else
galleryAddPhotoBelowApi28(String.valueOf(_file));
}
private void galleryAddPhotoAboveApi28(String _fileName, final String _filePath) {
OutputStream out = null;
try {
ContentValues values = new ContentValues();
ContentResolver resolver = this.getContentResolver();
values.put(MediaStore.Images.ImageColumns.DATA, _filePath); // MediaStore.Images.ImageColumns.DATA is deprecated!
values.put(MediaStore.Images.ImageColumns.DISPLAY_NAME, _fileName);
values.put(MediaStore.Images.ImageColumns.MIME_TYPE, "image/jpg");
values.put(MediaStore.Images.ImageColumns.DATE_TAKEN, System.currentTimeMillis() + "");
Uri uri = resolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
if (uri != null) {
Bitmap bitmap = BitmapFactory.decodeFile(_filePath);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, out);
out.flush();
out.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
private void galleryAddPhotoBelowApi28(String _file) {
File f = new File(_file);
Uri contentUri = Uri.fromFile(f);
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, contentUri); // Intent.ACTION_MEDIA_SCANNER_SCAN_FILE is deprecated!
sendBroadcast(mediaScanIntent);
}
推荐答案
没有必要先将图片文件保存在某个位置，然后尝试将其插入MediaStore。您可以从MediaStore中获取一个uri（就像现在从FileProvder中获取的一样），然后让Camera应用程序使用它。不需要清单和运行时代码中的WRITE权限。
There is no need to first save a picture file somewhere and then trying to insert it in the MediaStore. You can get an uri form the MediaStore (like you get it now from a FileProvder) and let that be used by the Camera app. No need for WRITE permissions in manifest and runtime code.
if ( Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q)
{
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
ContentValues values = new ContentValues(3);
String displayName = "FromTakepicture." + System.currentTimeMillis() + ".jpg";
values.put(MediaStore.Images.Media.DISPLAY_NAME, displayName);
values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
//values.put(MediaStore.Images.Media.RELATIVE_PATH, "DCIM/playground");
//values.put(MediaStore.Images.Media.RELATIVE_PATH, "Pictures/playground");
insertDisplayName = displayName;
insertUri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
intent.putExtra(MediaStore.EXTRA_OUTPUT, insertUri);
startActivityForResult(intent, PICK_PHOTO_CODE_URI);
return;
}
在其中使用 insertUri 通过onActivityResult（）处理图片。
Use insertUri in onActivityResult() to handle the picture.
图片位于图片目录中。取消注释RELATIVE_PATH行之一以将它们放置在其他位置。将创建子目录。
The pictures land in the Pictures directory. Uncomment one of the RELATIVE_PATH lines to put them somewhere else. The subdirectory will be created.
适用于低于Q的版本。
这篇关于如何在Android Q上将照片广播到画廊的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
