調用Android手機內建的閃光燈

關鍵代碼：

@Overrideprotected void onNewIntent(Intent intent) {Logger.i("onNewIntent");super.onNewIntent(intent);if (opened) {// 關閉// parameters = mCamera.getParameters();parameters.setFlashMode(Parameters.FLASH_MODE_OFF);mCamera.setParameters(parameters);// mCamera.stopPreview();mCamera.release();mCamera = null;} else {// 開啟mCamera = Camera.open();// mCamera.setPreviewDisplay(null);parameters = mCamera.getParameters();parameters.setFlashMode(Parameters.FLASH_MODE_TORCH);mCamera.setParameters(parameters);// mCamera.startPreview();}opened = !opened;}

<activity            android:launchMode="singleInstance"            android:theme="@android:style/Theme.NoDisplay"