Saya ingin mengatur orientasi kamera sesuai dengan orientasi perangkat di Android tetapi sepertinya tidak ada yang berfungsi. Saya mencoba memutar Permukaan serta parameter kamera tetapi pratinjau kamera dalam mode potret selalu terbalik. Saya perlu memutarnya 90 derajat searah jarum jam agar benar. Berikut adalah kode yang saya gunakan sekarang yang hanya berfungsi dalam mode lanskap.
SurfaceHolder.Callback surfaceCallback = new SurfaceHolder.Callback() {
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
camera.stopPreview();
camera.release();
camera = null;
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
initCamera();
}
private Size getOptimalPreviewSize(List<Size> sizes, int w, int h) {
final double ASPECT_TOLERANCE = 0.2;
double targetRatio = (double) w / h;
if (sizes == null)
return null;
Size optimalSize = null;
double minDiff = Double.MAX_VALUE;
int targetHeight = h;
// Try to find an size match aspect ratio and size
for (Size size : sizes) {
Log.d(TAG, "Checking size " + size.width + "w " + size.height
+ "h");
double ratio = (double) size.width / size.height;
if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE)
continue;
if (Math.abs(size.height - targetHeight) < minDiff) {
optimalSize = size;
minDiff = Math.abs(size.height - targetHeight);
}
}
// Cannot find the one match the aspect ratio, ignore the
// requirement
if (optimalSize == null) {
minDiff = Double.MAX_VALUE;
for (Size size : sizes) {
if (Math.abs(size.height - targetHeight) < minDiff) {
optimalSize = size;
minDiff = Math.abs(size.height - targetHeight);
}
}
}
return optimalSize;
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
Camera.Parameters parameters = camera.getParameters();
List<Size> sizes = parameters.getSupportedPreviewSizes();
Size optimalSize = getOptimalPreviewSize(sizes, width, height);
Log.d(TAG, "Surface size is " + width + "w " + height + "h");
Log.d(TAG, "Optimal size is " + optimalSize.width + "w " + optimalSize.height + "h");
parameters.setPreviewSize(optimalSize.width, optimalSize.height);
// parameters.setPreviewSize(width, height);
camera.setParameters(parameters);
camera.startPreview();
}
};