PROXIMITY_SCREEN_OFF_WAKE_LOCK不与三星合作

Question

我正在使用接近感应器，而安卓中的webRtc调用则使用设备感应器来打开/关闭屏幕。它在大多数设备上都能完美工作，但在三星上就不行了。当传感器关闭屏幕时，将调用活动的onStop()。下面是我使用的代码：

@Override
    public void onSensorChanged(SensorEvent sensorEvent) {
        if (sensorEvent.sensor.getType() == Sensor.TYPE_PROXIMITY) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                if (mWakeLock != null) {
                    mWakeLock.release(1);
                    mWakeLock = null;
                }
                if (sensorEvent.values[0] >= -SENSOR_SENSITIVITY && sensorEvent.values[0] <= SENSOR_SENSITIVITY) {
                    mWakeLock = mPowerManager.newWakeLock(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, "tag");
                    mWakeLock.acquire();
                } else {
                    //far
                    mWakeLock = mPowerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP, "tag");
                    mWakeLock.acquire();
                }
            }
        }
    }

Answer 1

尽量不要直接使用SensorManager。这对我使用三星S10e很有帮助。

class ProximityMgr(context: Context) {
    private val powerManager: PowerManager = context.getSystemService()!!
    private val wakeLock: PowerManager.WakeLock

    init {
        wakeLock = powerManager.newWakeLock(
                PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, 
                "lock:proximity_screen_off")
    }

    fun acquire() {
        if (powerManager.isWakeLockLevelSupported(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK)) {
            if (wakeLock.isHeld) {
                wakeLock.release()
            }
            wakeLock.acquire(WAKE_LOCK_TIMEOUT_MS)
        } else {
            Log.w(TAG, "not supported")
        }
    }

    fun release() {
        if (wakeLock.isHeld)
            wakeLock.release()
    }

    companion object {
        private const val TAG = "ProximitySensor"
        private const val WAKE_LOCK_TIMEOUT_MS: Long = 2 * 3600 * 1000
    }
}