我使用这些代码拍照并将照片广播到画廊,它有效。
我发现我的广播功能使用了 MediaStore.Images.ImageColumns.DATA
和 Intent.ACTION_MEDIA_SCANNER_SCAN_FILE
,这些已被弃用!
如何在不使用 MediaStore.Images.ImageColumns.DATA
和 Intent.ACTION_MEDIA_SCANNER_SCAN_FILE
的情况下替换这些函数。
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);
}
最佳答案
无需先将图片文件保存在某处,然后再尝试将其插入 MediaStore。您可以从 MediaStore 获取一个 uri(就像您现在从 FileProvder 获取它一样)并让相机应用程序使用它。 list 和运行时代码中无需 WRITE 权限。
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onActivityResult()中使用insertUri
来处理图片。
图片位于图片目录中。取消注释其中一条 RELATIVE_PATH 行以将它们放在其他地方。将创建子目录。
适配Q以下版本
关于android - 如何在 Android Q 上将照片广播到图库,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/59187727/