Make a SurfaceView larger than the screen (Fitting a camera preview to a SurfaceView larger than the display)

by

First, remove source of crashes: startPreviewCamera called in onResume.
Camera preview shall be started in SurfaceHolder.Callback methods.

Then you should know that you can set preview size only to sizes reported by Camera.Parameters.getSupportedPreviewSizes. And these sizes will most likely be smaller or equal to device’s screen size.

Then you simply call

Camera.Parameters p = camera.getParameters();
p.setPreviewSize(w, h); // one of supported sizes
camera.setParameters(p);

Then Surface of preview will have that size (possibly rotated and w/h swapped). And this surface will be rescaled by Android to size of your CameraPreview view when being drawn, so it’s also important how you set size of your CameraPreview.

You can set fixed size of your CameraPreview simply by calling

previewCamera.setLayoutParams(new FrameLayout.LayoutParams(w, h));

So in short, you set requested preview size in Camera.setParameters, and you size your preview view as desired, possibly to same size as preview, as is your requirement. Your preview view then may be equal to screen size or be smaller (assuming camera doesn’t provide preview bigger than screen). If camera provides bigger preview than screen, you can still call preview.setX, preview.setY to move it around.

More Related Contents:

  1. Android Camera Preview Stretched
  2. How to capture image from custom CameraView in Android?
  3. Custom camera android
  4. Fitting a camera preview to a SurfaceView larger than the display
  5. Android Camera : data intent returns null
  6. Android Camera will not work. startPreview fails
  7. How to get camera result as a uri in data folder?
  8. Use camera flashlight in Android
  9. Android M Camera Intent + permission bug?
  10. How to have a transparent ImageButton: Android
  11. Take Screenshot of SurfaceView
  12. Overlay images onto Camera preview SurfaceView
  13. Camera display / preview in full screen does not maintain aspect ratio – image is skewed, stretched in order to fit on the screen
  14. How to ask runtime permissions for Camera in Android , Runtime storage permissions
  15. Enable rear camera with HTML5
  16. Taking screenshot programmatically doesnt capture the contents of surfaceVIew
  17. How to capture and save an image using custom camera in Android?
  18. Encoding H.264 from camera with Android MediaCodec
  19. Can you launch the native Camera App from an Html 5 Web App?
  20. setRotation(90) to take picture in portrait mode does not work on samsung devices
  21. Nexus 5x reverse landscape sensor fix in a android camera preview app
  22. Force a camera to always open in portrait mode in android [duplicate]
  23. Permission Denial: not allowed to send broadcast in android
  24. Android MediaRecorder – “start failed: -19”
  25. About the Full Screen And No Titlebar from manifest
  26. Minimize Android GLSurfaceView lag
  27. switch back/front camera on fly
  28. How to get uri of captured photo?
  29. Picture distorted with Camera and getOptimalPreviewSize
  30. camera app not working?

Leave a Comment