android-camera - w3toppers.com

How to get camera result as a uri in data folder?

There are two ways to solve this problem. 1. Save bitmap which you received from onActivityResult method You can start camera through intent to capture photo using below code Intent cameraIntent=new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(cameraIntent, CAMERA_REQUEST); After capture photo, you will get bitmap in onActivityResult method if (requestCode == CAMERA_REQUEST) { Bitmap photo = (Bitmap) data.getExtras().get(“data”); } … Read more

Android Camera will not work. startPreview fails

I took your code and got the same error as you. However, on debugging it appears to me that the preview might be failing because it seemed like the width and height dimensions were round the wrong way but its not just a case of switching them around as I think the orientation also plays … Read more

Android Camera Preview Stretched

I’m using this method -> based on API Demos to get my Preview Size: private Camera.Size getOptimalPreviewSize(List<Camera.Size> sizes, int w, int h) { final double ASPECT_TOLERANCE = 0.1; double targetRatio=(double)h / w; if (sizes == null) return null; Camera.Size optimalSize = null; double minDiff = Double.MAX_VALUE; int targetHeight = h; for (Camera.Size size : sizes) … Read more

Using both front and back cameras simultaneously android

It’s possible on the HTC m8, the OnePlusOne and the Motorola Nexus 6, as far as I have tested. Many more phones might support it, but you just have to test on the phones and see if the app crashes or not. You create a camera object for each available camera and have each attach … Read more

Allow user to select camera or gallery for image

How to launch a single Intent to select images from either the Gallery or the Camera, or any application registered to browse the filesystem. Rather than creating a Dialog with a list of Intent options, it is much better to use Intent.createChooser in order to get access to the graphical icons and short names of … Read more

Android Camera : data intent returns null

The default Android camera application returns a non-null intent only when passing back a thumbnail in the returned Intent. If you pass EXTRA_OUTPUT with a URI to write to, it will return a null intent and the picture is in the URI that you passed in. You can verify this by looking at the camera … Read more

How do I open the “front camera” on the Android platform?

private Camera openFrontFacingCameraGingerbread() { int cameraCount = 0; Camera cam = null; Camera.CameraInfo cameraInfo = new Camera.CameraInfo(); cameraCount = Camera.getNumberOfCameras(); for (int camIdx = 0; camIdx < cameraCount; camIdx++) { Camera.getCameraInfo(camIdx, cameraInfo); if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { try { cam = Camera.open(camIdx); } catch (RuntimeException e) { Log.e(TAG, “Camera failed to open: ” + e.getLocalizedMessage()); … Read more

Android camera intent

private static final int TAKE_PICTURE = 1; private Uri imageUri; public void takePhoto(View view) { Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); File photo = new File(Environment.getExternalStorageDirectory(), “Pic.jpg”); intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photo)); imageUri = Uri.fromFile(photo); startActivityForResult(intent, TAKE_PICTURE); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); switch (requestCode) { case TAKE_PICTURE: if (resultCode == … Read more

Taking picture from camera without preview

it is really weird that camera on android platform can’t stream video until it given valid preview surface. it seems that the architects of the platform was not thinking about 3rd party video streaming applications at all. even for augmented reality case the picture can be presented as some kind of visual substitution, not real … Read more

How to turn on front flash light programmatically in Android?

For 2021, with CameraX, it is now dead easy: https://stackoverflow.com/a/66585201/294884 For this problem you should: Check whether the flashlight is available or not? If so then Turn Off/On If not then you can do whatever, according to your app needs. For Checking availability of flash in the device: You can use the following: context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH); which … Read more