Android crashing after camera Intent

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半阙折子戏
半阙折子戏 2020-12-04 15:13

I have an app published and one of the fundamental features is to allow the user to take a picture, and then save that photo in a specific folder on their External Storage.

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8条回答
  • 2020-12-04 15:15

    Follow the steps given on this link. Hope this is useful for you.

    OR

    Fetching Your Image Without Crashing

    Write the below code in MainActivity

    // Storage for camera image URI components 
    private final static String CAPTURED_PHOTO_PATH_KEY = "mCurrentPhotoPath";      
    private final static String CAPTURED_PHOTO_URI_KEY = "mCapturedImageURI"; 
    
    // Required for camera operations in order to save the image file on resume.    
    private String mCurrentPhotoPath = null; 
    private Uri mCapturedImageURI = null; 
    
    @Override 
    public void onSaveInstanceState(Bundle savedInstanceState) { 
       if (mCurrentPhotoPath != null) {            
         savedInstanceState.putString(CAPTURED_PHOTO_PATH_KEY, mCurrentPhotoPath); 
       } 
      if (mCapturedImageURI != null) {  
         savedInstanceState.putString(CAPTURED_PHOTO_URI_KEY, mCapturedImageURI.toString()); 
      } 
      super.onSaveInstanceState(savedInstanceState); 
    } 
    
    @Override 
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
    
       if (savedInstanceState.containsKey(CAPTURED_PHOTO_PATH_KEY)) {
           mCurrentPhotoPath = savedInstanceState.getString(CAPTURED_PHOTO_PATH_KEY); 
       } 
       if (savedInstanceState.containsKey(CAPTURED_PHOTO_URI_KEY)) {
       mCapturedImageURI = Uri.parse(savedInstanceState.getString(CAPTURED_PHOTO_URI_KEY)); 
       } 
       super.onRestoreInstanceState(savedInstanceState); 
    }
    
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  • 2020-12-04 15:25

    For Samsung devices add below one line in your AndroidManifest.xml File

    android:configChanges="orientation|screenSize"

    i hope this will work for you

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  • 2020-12-04 15:25

    Hello all i know answer has been given but as this is also one of the easiest solution solution i have ever found

    Here is an example, which is itself bothering about the device!

    AndroidCameraUtils - Download the project and from library project by including it below is the code snippet you can use !

    private void setupCameraIntentHelper() {
    mCameraIntentHelper = new CameraIntentHelper(this, new CameraIntentHelperCallback() {
        @Override
        public void onPhotoUriFound(Date dateCameraIntentStarted, Uri photoUri, int rotateXDegrees) {
            messageView.setText(getString(R.string.activity_camera_intent_photo_uri_found) + photoUri.toString());
    
            Bitmap photo = BitmapHelper.readBitmap(CameraIntentActivity.this, photoUri);
            if (photo != null) {
                photo = BitmapHelper.shrinkBitmap(photo, 300, rotateXDegrees);
                ImageView imageView = (ImageView) findViewById(de.ecotastic.android.camerautil.sample.R.id.activity_camera_intent_image_view);
                imageView.setImageBitmap(photo);
            }
        }
    
        @Override
        public void deletePhotoWithUri(Uri photoUri) {
            BitmapHelper.deleteImageWithUriIfExists(photoUri, CameraIntentActivity.this);
        }
    
        @Override
        public void onSdCardNotMounted() {
            Toast.makeText(getApplicationContext(), getString(R.string.error_sd_card_not_mounted), Toast.LENGTH_LONG).show();
        }
    
        @Override
        public void onCanceled() {
            Toast.makeText(getApplicationContext(), getString(R.string.warning_camera_intent_canceled), Toast.LENGTH_LONG).show();
        }
    
        @Override
        public void onCouldNotTakePhoto() {
            Toast.makeText(getApplicationContext(), getString(R.string.error_could_not_take_photo), Toast.LENGTH_LONG).show();
        }
    
        @Override
        public void onPhotoUriNotFound() {
            messageView.setText(getString(R.string.activity_camera_intent_photo_uri_not_found));
        }
    
        @Override
        public void logException(Exception e) {
            Toast.makeText(getApplicationContext(), getString(R.string.error_sth_went_wrong), Toast.LENGTH_LONG).show();
            Log.d(getClass().getName(), e.getMessage());
        }
    });
    }
    
    @Override
    protected void onSaveInstanceState(Bundle savedInstanceState) {
        super.onSaveInstanceState(savedInstanceState);
        mCameraIntentHelper.onSaveInstanceState(savedInstanceState);
    }
    
    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);
        mCameraIntentHelper.onRestoreInstanceState(savedInstanceState);
    }
    
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
        super.onActivityResult(requestCode, resultCode, intent);
        mCameraIntentHelper.onActivityResult(requestCode, resultCode, intent);
    }
    }
    

    NOTE:- I tried many examples for camera utils and ofcourse there are another ways to handle it but for beginners and person who are not too much familier with the core concepts would be more comfort with this project. THanks!

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  • 2020-12-04 15:31

    First lets make it clear - we have two options to take image data in onActivityResult from Camera:

    1. Start Camera by passing the exact location Uri of image where you want to save.

    2. Just Start Camera don't pass any Loaction Uri.


    1 . IN FIRST CASE :

    Start Camera by passing image Uri where you want to save:

    String imageFilePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/picture.jpg";  
    File imageFile = new File(imageFilePath); 
    Uri imageFileUri = Uri.fromFile(imageFile); // convert path to Uri
    
    Intent it = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
    it.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, imageFileUri); 
    startActivityForResult(it, CAMERA_RESULT);
    

    In onActivityResult receive the image as:

    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
        super.onActivityResult(requestCode, resultCode, data); 
    
        if (RESULT_OK == resultCode) { 
            iv = (ImageView) findViewById(R.id.ReturnedImageView); 
    
            // Decode it for real 
            BitmapFactory.Options bmpFactoryOptions = new BitmapFactory.Options();
            bmpFactoryOptions.inJustDecodeBounds = false; 
    
            //imageFilePath image path which you pass with intent 
            Bitmap bmp = BitmapFactory.decodeFile(imageFilePath, bmpFactoryOptions); 
    
            // Display it 
            iv.setImageBitmap(bmp); 
        }    
    } 
    

    2 . IN SECOND CASE:

    Start Camera without passing image Uri, if you want to receive image in Intent(data) :

    Intent it = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
    startActivityForResult(it, CAMERA_RESULT); 
    

    In onActivityResult recive image as:

    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
        super.onActivityResult(requestCode, resultCode, data); 
    
        if (RESULT_OK == resultCode) { 
            // Get Extra from the intent 
            Bundle extras = data.getExtras(); 
            // Get the returned image from extra 
            Bitmap bmp = (Bitmap) extras.get("data"); 
    
            iv = (ImageView) findViewById(R.id.ReturnedImageView); 
            iv.setImageBitmap(bmp); 
        } 
    } 
    


    *****Happy Coding!!!!*****

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  • 2020-12-04 15:39

    I suspect 3 posible problems may have created your issue:

    1. Some devices return null when you call extras.get("data"); in onActivityResult method so your problem may be a NullPointerException. To solve this, you need to pass the exact URI location to tell the camera app where you want it to store and use it in onActivityResult to retrieve the image as a Bitmap.

    2. Some other devices return a full size Bitmap when extras.get("data"); in onActivityResult. If the bitmap is too large that can result in an OutOfMemmoryError, so maybe you need to decode your image in a smaller size to not take so much memmory heap. This two links can help you in this situation:

      http://developer.android.com/training/displaying-bitmaps/load-bitmap.html

      BitmapFactory OOM driving me nuts

    3. Maybe your activity is destroyed by the GC so you have to use onSavedInstanceState and onRestoreInstanceState to save your Activity's data. See the answer of this previous post for more information.

    I don't know if you already have dealt with these issues.

    Hope that helps:)

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  • 2020-12-04 15:39

    First, make sure to check request code, you might be catching someone else's result there. Second, don't use the intent's data Bitmap - if anything, it's small, but since you provide the path to store captured image, it shouldn't even be there (see here). So, store the url you provided as output file path and read Bitmap from there when you've received RESULT_OK for your request:

        ...
        // save your file uri, not necessarily static
        mUriSavedImage = Uri.fromFile(output);
        startActivityForResult(camera, MY_REQUEST_CODE);
        /* Make a String like "com.myname.MY_REQUEST_CODE" and hash it into int to give it
        a bit of uniqueness */
    }
    
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == MY_REQUEST_CODE) {
            if (resultCode == RESULT_OK) {
                 Bitmap bmp = BitmapFactory.decodeFile(mUriSavedImage);
                 if (bmp != null) {
                     image.setImageBitmap(bmp); // Set imageview to image that was
                                    // captured
                     image.setScaleType(ScaleType.FIT_XY);
                 } else {
                     Toast.makeText(this, "Something went wrong", Toast.LENGTH_SHORT).show();
                 }
            }
        } else {
            super.onActivityResult(requestCode, resultCode, data);
        }
    }
    
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