Back button not working after taking picture

Question

I am trying to implement a solution that I found HERE but after I hit capture, the back button doesn't finish the activity. Is there a way to call

finish();

when the back button is pressed within the function

private void capture() {
    mCamera.takePicture(null, null, null, new Camera.PictureCallback() {
        final float bearing = degree;

        @Override
        public void onPictureTaken(byte[] data, Camera camera) {
            latitude = mGpsLocationTracker.getLatitude();
            longitude = mGpsLocationTracker.getLongitude();

            Toast.makeText(getApplicationContext(), "Picture Taken",
                    Toast.LENGTH_SHORT).show();

            Toast.makeText(getApplicationContext(), "" +
                    latitude + ", " + longitude, Toast.LENGTH_SHORT).show();

            Toast.makeText(getApplicationContext(), "" + bearing, Toast.LENGTH_SHORT).show();

            Intent intent = new Intent();
            intent.putExtra("image_arr", data);
            setResult(RESULT_OK, intent);
            camera.stopPreview();
            if (camera != null) {
                camera.release();
                mCamera = null;
            }
            finish();
        }
    });
}

@Override
public void onBackPressed() {
    super.onBackPressed();  
    finish();
}

I override that function outside the function. I edited the question to include that code — Ryan Newman, Sep 15 '15 at 17:35

Fakher · Accepted Answer · 2015-09-16T09:09:49.527

1

Ok instead of doying finish(); try to make an intent to the desired activity:

@Override
public void onBackPressed() {
    super.onBackPressed();
    startActivity(new Intent(YourActivity, DesiredActivity));
    finish();
}

edited Sep 16 '15 at 09:09

answered Sep 15 '15 at 17:53

Fakher

2,098
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That worked! Do you happen to know why the regular back button wasn't working? I'm just curious – Ryan Newman Sep 15 '15 at 17:59
sorry i don't have an explanation about that, but may be because you must specifie an activity to go before you kill the current activity. – Fakher Sep 16 '15 at 07:55

score 0 · Answer 2 · answered Sep 15 '15 at 17:40

0

Try Overriding onKey method in your activity class

@Override
public boolean onKey(View v, int keyCode, KeyEvent event) 
{   if (event.getAction() == KeyEvent.ACTION_UP) 
    {   finish();
    }
    return false;
};

answered Sep 15 '15 at 17:40

Angad Singh

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Isn't have the `onBackPressed()` function override the same thing? When I add that code I get an error that it doesn't override method from the super class – Ryan Newman Sep 15 '15 at 17:45
Add this inside your onBackPressed method: super.onBackPressed(); – Angad Singh Sep 15 '15 at 17:49
And before finish(); method – Angad Singh Sep 15 '15 at 17:51
I added that and it still makes no difference – Ryan Newman Sep 15 '15 at 17:52
Try to put a toast message or log in onBackPressed() method to check if its actually working. – Angad Singh Sep 15 '15 at 17:55

Back button not working after taking picture

2 Answers2