android滑动解锁震动效果的开启和取消

else if (mUnlockWidget instanceof MultiWaveView) {
            MultiWaveView multiWaveView = (MultiWaveView) mUnlockWidget;

            multiWaveView.setVibrateEnabled(Settings.System.getInt(mContext.getContentResolver(),//通过判断是否设置了触摸震动效果来设置解锁的震动。
                            Settings.System.HAPTIC_FEEDBACK_ENABLED, 1) != 0);

            MultiWaveViewMethods multiWaveViewMethods = new MultiWaveViewMethods(multiWaveView);
            multiWaveView.setOnTriggerListener(multiWaveViewMethods);
            mUnlockWidgetMethods = multiWaveViewMethods;

 class MultiWaveViewMethods implements MultiWaveView.OnTriggerListener,
            UnlockWidgetCommonMethods {

        private final MultiWaveView mMultiWaveView;
        private boolean mCameraDisabled;

        MultiWaveViewMethods(MultiWaveView multiWaveView) {
            mMultiWaveView = multiWaveView;

            multiWaveView.setVibrateEnabled(Settings.System.getInt(mContext.getContentResolver(),
                            Settings.System.HAPTIC_FEEDBACK_ENABLED, 1) != 0);

            final boolean cameraDisabled = mLockPatternUtils.getDevicePolicyManager()
                    .getCameraDisabled(null);