Application Crash when using CAMERA - Android

Question

I've written an application which should take a picture and then show it on the screen for modifications. When trying it on the eclipse emulator the camera won't work, so I'm trying it on my Galaxy Nexus Smart Phone.

Nevertheless when running it on my SP the application will crash saying that it unfortunally stopped working.

When executing the app this is what exactly happens:

I click on the camera button and the camera interface gets opened
After taking the picture it gives me the choice to discard it or open it
If I click on discard the application returns to normal usage
If I click on open the application crashes as mentioned above

I googled a little and found out that you need permissions to use hardware devices check here, so I created the file /etc/udev/rules.d/51-android.rules and this is its content:

SUBSYSTEM=="USB", ATTR{IDVENDOR}=="18d1", MODE="0666, "GROUP="plugdev" SUBSYSTEM=="USB", ATTR{IDVENDOR}=="04e8", MODE="0666, "GROUP="plugdev" SUBSYSTEM=="USB", ATTR{IDVENDOR}=="0bb4", MODE="0666, "GROUP="plugdev"

But still I won't be able to use camera.

Here are the permissions I declared in my manifest file:

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />

Here is the code I use to launch the camera intent:

//create new Intent     
Intent cameraIntent = new Intent( android.provider.MediaStore.ACTION_IMAGE_CAPTURE );

//get something back from the activity we are starting
startActivityForResult( cameraIntent, CAMERA_PICTURE_REQUEST );

And this is the code for processing the result:

public void onActivityResult( int requestCode, int resultCode, Intent imageReturnedIntent ) 
{

    if( resultCode == RESULT_OK ) 
    {
        if( requestCode == GALLERY_PICTURE_REQUEST ) 
        {


            selectedImageUri = imageReturnedIntent.getData();

            Log.d( TAG, selectedImageUri );

            Intent intent = new Intent( DVAHLUI_SuperviseActivity.this, DVAHLUI_SelectImageContentActivity.class );


            intent.setData( selectedImageUri );
            startActivity( intent );


        }

        if( requestCode == CAMERA_PICTURE_REQUEST ) 
        {


            selectedImageUri = imageReturnedIntent.getData();
            Log.d( TAG, selectedImageUri );

            Intent intent = new Intent( DVAHLUI_SuperviseActivity.this, DVAHLUI_SelectImageContentActivity.class );


            intent.setData( selectedImageUri );
            startActivity( intent );


        }
    }
}

This is the getPath() function causing the Java Null pointer exception:

public String getPath( Uri uri ) 
{
    String[] filePathColumn = { android.provider.MediaStore.Images.Media.DATA };

LINE 343 -->    Cursor cursor = getContentResolver().query( uri, filePathColumn, null, null, null );
    cursor.moveToFirst();

    int columnIndex = cursor.getColumnIndexOrThrow( filePathColumn[0] );
    String filePath = cursor.getString( columnIndex );

    cursor.close();

    return filePath;

}

Can you please tell me what's going wrong?

FOGOT TO POST LOGCAT:

E/AndroidRuntime(27859): FATAL EXCEPTION: main
E/AndroidRuntime(27859): java.lang.RuntimeException: Failure delivering result ResultInfo{who=supervise, request=1, result=-1, data=Intent { act=inline-data (has extras) }} to activity {com.DVA_HLUI/com.DVA_HLUI.DVAHLUI_TabModeActivity}: java.lang.NullPointerException 
E/AndroidRuntime(27859):    at android.app.ActivityThread.deliverResults(ActivityThread.java:3141)
E/AndroidRuntime(27859):    at android.app.ActivityThread.handleSendResult(ActivityThread.java:3184)
E/AndroidRuntime(27859):    at android.app.ActivityThread.access$1100(ActivityThread.java:130)
E/AndroidRuntime(27859):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1243)
E/AndroidRuntime(27859):    at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(27859):    at android.os.Looper.loop(Looper.java:137) E/AndroidRuntime(27859):     at android.app.ActivityThread.main(ActivityThread.java:4745)
E/AndroidRuntime(27859):    at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(27859):    at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime(27859):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
E/AndroidRuntime(27859):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
E/AndroidRuntime(27859):    at dalvik.system.NativeStart.main(Native Method) 
E/AndroidRuntime(27859): Caused by: java.lang.NullPointerException 
E/AndroidRuntime(27859):    at android.content.ContentResolver.acquireUnstableProvider(ContentResolver.java:1094)
E/AndroidRuntime(27859):    at android.content.ContentResolver.query(ContentResolver.java:354)
E/AndroidRuntime(27859):    at android.content.ContentResolver.query(ContentResolver.java:313)
E/AndroidRuntime(27859):    at com.DVA_HLUI.DVAHLUI_SuperviseActivity.getPath(DVAHLUI_SuperviseActivity.java:343)
E/AndroidRuntime(27859):    at com.DVA_HLUI.DVAHLUI_SuperviseActivity.onActivityResult(DVAHLUI_SuperviseActivity.java:312)
E/AndroidRuntime(27859):    at android.app.ActivityGroup.dispatchActivityResult(ActivityGroup.java:122)
E/AndroidRuntime(27859):    at android.app.ActivityThread.deliverResults(ActivityThread.java:3137)
E/AndroidRuntime(27859):    ... 11 more

@SharathG - found something interesting, it seems as if it is the function getPath() that is causing the java null pointer exception...can you help me?thks in advance — Matteo, Sep 24 '12 at 19:40
once check out whether the uri is having the value or not. I think uri doesnot have the path which is causing nullpointer — G_S, Sep 24 '12 at 19:44
no its not the one i am saying. Where did you call getpath(uri) ? — G_S, Sep 24 '12 at 19:47
Your logcat seems to indicate that this has nothing to do with the camera, but rather that there is a null pointer floating around somewhere. I would recommend editing your post (title and all) to accurately reflect the actual problem and eliminate extraneous information. — Bryan Herbst, Sep 24 '12 at 19:47
@Tanis.7x - I printed the ImageUri returned by the camera intent and it is null, this is the problem in my opinion, butI do not know why. Can you help? selectedImageUri = imageReturnedIntent.getData(); Log.d( TAG, selectedImageUri ); — Matteo, Sep 24 '12 at 19:54
D/DVA_HLUISuperviseActivity(32722): null, as I said in some comment above it is the camera content provider that will not work, I just do not understand why... — Matteo, Sep 24 '12 at 20:04
once have a look at http://stackoverflow.com/questions/11927710/get-image-from-capture-and-show-image-in-another-layout-using-another-activity-i/11927947#11927947 discussion. It may be helpful to you — G_S, Sep 24 '12 at 20:08

score 2 · Answer 1 · answered Sep 24 '12 at 19:48

It sounds and looks like your not allowing the system to update itself that a new media file has been created. Thats why your method is failing. You can either manully create the image file path so you have the images location on the file tree or you can call for the media service to run an update. I always create my own filepath as older phones take longer to update using the media service and so your method in that case would fail.

score 2 · Accepted Answer · edited May 23 '17 at 12:26

2

Apparently this crash is due to a known Samsung problem: it seems like you need to create a Uri before calling the camera intent, in this way when running the onActivityResult method the content provider will allready have allocated the place where to save the resource.

For further information check the following:

and many more by googling...

P.S. as soon as possible I'll post the solution that worked for me.

edited May 23 '17 at 12:26

Community

1
1

answered Sep 25 '12 at 07:07

Matteo

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I am getting the same issue on My Nexus 4 while capturing video on camera. – Ajith M A Mar 04 '14 at 11:23
@Matteo thanks a lot for grouping these issues together it was really helpful. IF possible please provide your answer. +1 a million if i could – Aniruddha K.M Apr 05 '15 at 07:15

score 0 · Answer 3 · answered Dec 07 '15 at 04:17

I know it is late to answer it but asap i found the answer i replied for it so please atleast review it .

AndroidCameraUtil could be nice and easy solution for each and every device below is the code snippet you can use with the library

 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);
}
}

Application Crash when using CAMERA - Android

3 Answers3