@Override
public void surfaceChanged(SurfaceHolder surfaceHolder, int i, int i2, int i3) {
Log.e("ok", "surfaceChanged => w=" + i2 + ", h=" + i3);
// before changing the application orientation, you need to stop the preview, rotate and then
// start it again
if (surfaceHolder.getSurface() == null) // check if the surface is ready to receive camera data
return;
try {
mCamera.stopPreview();
} catch (Exception e) {
// this will happen when you are trying the camera if it's not running
}
// now, recreate the camera preview
try {
Camera.Parameters parameters = mCamera.getParameters();
List<String> focusModes = parameters.getSupportedFocusModes();
if (focusModes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)) {
parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO);
}
parameters.setPreviewSize(mPreviewSize.width, mPreviewSize.height);
mCamera.setParameters(parameters);
mCamera.setDisplayOrientation(90);
mCamera.startPreview(mHolder);
} catch (IOException e) {
Log.d("ERROR", "Camera error on surfaceChanged " + e.getMessage());
}
}
@Override
public void surfaceCreated(SurfaceHolder surfaceHolder) {
try {
// when the surface is created, we can set the camera to draw images in this surfaceholder
actions = mCamera.startPreview(mHolder);
} catch (IOException e) {
Log.d("ERROR", "Camera error on surfaceCreated " + e.getMessage());
}
}
/**
* Initialize preview with good ratio.
*
* @param surfaceTexture
*/
private void initializePreview(final SurfaceTexture surfaceTexture) {
try {
// - Retrieve camera ratio then fit preview and cropper.
final float ratio = getCameraPreviewRatio();
updatePreviewRatio(ratio);
fitCropImageView(ratio);
// - If snap button is still enable, start preview.
if (mSnapButton.isEnabled()) {
mEasyCamera.startPreview(surfaceTexture);
}
} catch (final Throwable cause) {
// - An exception may be thrown when camera is unavailable.
displayCameraError(cause);
}
}