public void stopCamera() {
if (mCamera != null) {
mPreviewFrame.removeView(mPreview);
}
Log.d(TAG, "stopping camera");
mCameraHandler.sendEmptyMessage(STOP_PREVIEW);
mCameraHandler.sendEmptyMessage(RELEASE);
mHandler.removeCallbacks(cameraFocusRunner);
mPreviewing = false;
}
public void setFlashOn(boolean on) {
// You have camera in your device
if (hasCameraFlash()) {
if (on) {
mFlashOn = true;
mCameraHandler.sendEmptyMessage(FLASH_ON);
} else {
mFlashOn = false;
mCameraHandler.sendEmptyMessage(FLASH_OFF);
}
}
}
@Override
public CameraManager.CameraProxy cameraOpen(
Handler handler, int cameraId, CameraOpenErrorCallback callback) {
mCameraHandler
.obtainMessage(
OPEN_CAMERA,
cameraId,
0,
CameraOpenErrorCallbackForward.getNewInstance(handler, callback))
.sendToTarget();
mCameraHandler.waitDone();
if (mCamera != null) {
return new AndroidCameraProxyImpl();
} else {
return null;
}
}
private void finishOpenCamera() {
mPreview = new CameraSurfacePreview(mFragment.getActivity(), mCamera);
mCameraHandler.sendEmptyMessage(SETUP);
mPreviewing = true;
mHandler.post(
new Runnable() {
public void run() {
mPreviewFrame.addView(mPreview);
}
});
}
private void startupTheCamera() {
if (mFragment.getActivity() == null) {
return;
}
final int cameraIndex = pickCamera();
if (cameraIndex < 0) {
return;
}
mCameraHandler.post(
new Runnable() {
public void run() {
try {
Log.d(TAG, "Opening Camera");
mCamera = Camera.open(cameraIndex);
finishOpenCamera();
} catch (Exception e) {
Log.e(TAG, "Camera Does Not exist", e);
mHandler.postDelayed(mCameraStartRunner, 500);
}
}
});
}
@Override
public void run() {
mCameraHandler.sendEmptyMessage(AUTO_FOCUS);
mHandler.postDelayed(cameraFocusRunner, FOCUS_MILLIS);
}
public void stopScanning() {
mCameraHandler.sendEmptyMessage(PREVIEW_OFF);
}
public void startScanning() {
mCameraHandler.sendEmptyMessage(PREVIEW_ON);
}
@Override
protected void onDestroy() {
Log.d(TAG, "onDestroy");
super.onDestroy();
mCameraHandler.invalidateHandler(); // paranoia
}