android 将图片保存到内部存储器 > 我做错了什么（找不到文件）

Question

6 小时以来，我一直在尝试将图片简单地保存到我设备的内部存储器中（在新文件夹中）。我已经阅读了很多解决方案，但由于某种原因我无法让它工作（找不到文件）.. 如果您需要更多代码，请告诉我，但这应该是与问题相关的所有内容

//OnActivityResult
if (requestCode == CAMERA_TAKE_PICTURE && resultCode == RESULT_OK) {

         
            picureView.setImageURI(lastMedia);
          

        }


//TakePictureIntent
private void cameraTakePictureIntent() {

        Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        lastMedia = Uri.fromFile(getOutPutMediaFile());
        takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT,lastMedia);
        if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
            startActivityForResult(takePictureIntent, CAMERA_TAKE_PICTURE);
        }
        Log.d("cameraTakePictureIntent", "Kamera geöffnet");
    }
    
    
//Output media file
private File getOutPutMediaFile(){
        String fileName ="ANFRAGE_"+auftragsNummer+"_"+getAmout(auftragsNummer)+".jpg";
        File mediaStorageDir = new File(getFilesDir().getAbsolutePath()+File.separator+"unsent"+File.separator);
        if(!mediaStorageDir.exists())
            mediaStorageDir.mkdirs();

        return new File(getFilesDir().getAbsolutePath()+File.separator+"unsent"+File.separator+fileName) ;

    }

Answer 1

你试过了吗：

File file = new File(context.getFilesDir(), filename);

?

Saving Files | Android Developers

Answer 2

请尝试此代码。它对我有用。

// Activity request codes
    private static final int CAMERA_CAPTURE_IMAGE_REQUEST_CODE = 100;
    public static final int MEDIA_TYPE_IMAGE = 1;

// directory name to store captured images and videos
    private static final String IMAGE_DIRECTORY_NAME = "Hello Camera";

    private Uri fileUri; // file url to store image/video

这是为了用相机拍照。

    /*
     * Capturing Camera Image will lauch camera app requrest image capture
     */
    private void captureImage() {
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

        fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);

        intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);

        // start the image capture Intent
        startActivityForResult(intent, CAMERA_CAPTURE_IMAGE_REQUEST_CODE);
    }

这是你的getOutputMediaFileUri()方法。

    /*
     * Creating file uri to store image
     */
    public Uri getOutputMediaFileUri(int type) {
        return Uri.fromFile(getOutputMediaFile(type));
    }

这是你的getOutputMediaFile()方法。

    /*
     * returning image
     */
    private static File getOutputMediaFile(int type) {

        // External sdcard location
        File mediaStorageDir = new File(
                Environment
                        .getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
                IMAGE_DIRECTORY_NAME);

        // Create the storage directory if it does not exist
        if (!mediaStorageDir.exists()) {
            if (!mediaStorageDir.mkdirs()) {
                Log.d(IMAGE_DIRECTORY_NAME, "Oops! Failed create "
                        + IMAGE_DIRECTORY_NAME + " directory");
                return null;
            }
        }

        // Create a media file name
        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss",
                Locale.getDefault()).format(new Date());
        File mediaFile;
        if (type == MEDIA_TYPE_IMAGE) {
            mediaFile = new File(mediaStorageDir.getPath() + File.separator
                    + "IMG_" + timeStamp + ".jpg");
        } else {
            return null;
        }

        return mediaFile;
    }

详细check本教程。

android 将图片保存到内部存储器 > 我做错了什么（找不到文件）

android save picture in internal storage > What am I doing wrong(file not found)

android

file-not-found

save-image