尝试使用onClick更改相机的闪光速率

时间:2012-12-27 22:41:11

标签: android onclick android-camera

我希望当我按下按钮时,相机闪光灯会慢慢闪烁,因为我做了这些变量:

int counter = 1;
int deloy = 2000;
int poriod = 2000;
int deloy1 = 1000;
int poriod1 = 2000;

这是带代码的按钮:

case R.id.btlento:

        do{
            cameraOn();
            Timer timer = new Timer();
            timer.scheduleAtFixedRate(new TimerTask() {

                @Override
                public void run() {
                    // TODO Auto-generated method stub
                    cameraOff();
                    counter = counter+1;
                }
            },deloy1,poriod1);

            Timer timer2 = new Timer();
            timer2.scheduleAtFixedRate(new TimerTask() {

                @Override
                public void run() {
                    // TODO Auto-generated method stub
                    cameraOn();
                }
            },deloy,poriod);

                }while(counter>=60);
        break;

另一个按钮必须更快地闪烁,所以我做了其他变量:

int j = 1;
int delay = 600;
int period = 600;
int delay1 = 300;
int period1 = 600;

这些是带方法的按钮:

case R.id.btrapid:

        do{
            cameraOn();
            Timer timer = new Timer();
            timer.scheduleAtFixedRate(new TimerTask() {

                @Override
                public void run() {
                    // TODO Auto-generated method stub
                    cameraOff();
                    j = j+1;
                }
            },delay1,period1);

            Timer timer2 = new Timer();
            timer2.scheduleAtFixedRate(new TimerTask() {

                @Override
                public void run() {
                    // TODO Auto-generated method stub
                    cameraOn();
                }
            },delay,period);

                }while(j>=5);

        break;

现在他们眨眼他们永远不会停止,为什么???? 方法cameraOn是:

private void cameraOn() {
            // TODO Auto-generated method stub
             camera = Camera.open();
             parameters = camera.getParameters();
             parameters.setFlashMode(Parameters.FLASH_MODE_TORCH);
             camera.setParameters(parameters);
        }

并且cameraOff是:

private void cameraOff() {
            // TODO Auto-generated method stub
             parameters.setFlashMode(Parameters.FLASH_MODE_OFF);
             camera.setParameters(parameters);
             camera.release();
             camera = null;
        }

1 个答案:

答案 0 :(得分:0)

假设counterj未在其他地方修改,您永远不会输入while块,它应该是:

while(counter<=60)

while(j<60)