能够等待传感器监听器执行一次之后继续执行吗？

Question

 countDownLatch = new CountDownLatch(1);
        mManager2 = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE);
        Sensor mSensor2 = mManager2.getDefaultSensor(Sensor.TYPE_PROXIMITY);
        SensorEventListener mListener2 = new SensorEventListener() {
            public void onAccuracyChanged(Sensor sensor, int accuracy) {}
            public void onSensorChanged(SensorEvent event) {
                p = event.values[0];
                mManager2.unregisterListener(this);
                countDownLatch.countDown();
            }
        };
        mManager2.registerListener(mListener2, mSensor2, SensorManager.SENSOR_DELAY_GAME);
        try {
            countDownLatch.await();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        boolean isProximate = p < 0.5;

大概就是这样，跟我之前写的可能不一样，我修改之前没有保存。onSensorChange 里面的好像根本就不会执行。

Answer 1

http://www.it1352.com/159086.html