how to change the Android-camera to portrait in surfaceview?

android, android-camera, java, surfaceview

Solution

You will probably want to use the `setDisplayOrientation` function as follows:

public void surfaceCreated(SurfaceHolder holder) {
    if (Build.VERSION.SDK_INT >= 8) mCamera.setDisplayOrientation(90);
}

Using the camera `params.set("orientation"...` stuff is not consistent across devices and is really pre-SDK 8 language.

Problem

I am coding for an android tablet and i want my app to use the portrait view of the `surfaceView` camera preview. It is landscape by default, and I tried the following code to rotate to portrait view: ``` public void surfaceCreated(SurfaceHolder holder){ // The Surface has been created, acquire the camera and tell it where to draw. mCamera = Camera.open(); Parameters params = mCamera.getParameters(); // If we aren't landscape (the default), tell the camera we want portrait mode if (this.getResources().getConfiguration().orientation != Configuration.ORIENTATION_LANDSCAPE){ params.set("orientation", "portrait"); // "landscape" // And Rotate the final picture if possible // This works on 2.0 and higher only //params.setRotation(90); // Use reflection to see if it exists and to call it so you can support older versions try { Method rotateSet = Camera.Parameters.class.getMethod("setRotation", new Class[] { Integer.TYPE } ); Object arguments[] = new Object[] { new Integer(270) }; rotateSet.invoke(params, arguments); } catch (NoSuchMethodException nsme) { // Older Device Log.v("CameraView","No Set Rotation"); } catch (IllegalArgumentException e) { Log.v("CameraView","Exception IllegalArgument"); } catch (IllegalAccessException e) { Log.v("CameraView","Illegal Access Exception"); } catch (InvocationTargetException e) { Log.v("CameraView","Invocation Target Exception"); } } mCamera.setParameters(params); try{ mCamera.setPreviewDisplay(holder); } catch (IOException exception) { mCamera.release(); mCamera = null; } } ``` But it doesn't work. Could anybody fix it please?

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