Question

我的活动已在LANDSCAPE上锁定。但我仍然需要知道设备的方向。所以我选择使用传感器。我有以下代码

var dlg=$('#createTeam').dialog({
     title: 'Create a Team',
     resizable: true,
     autoOpen:false,
     modal: true,
     hide: 'fade',
     width:600,
     height:285,
     close: function() {
         window.location.reload();
     }
});

我的代码无法可靠地工作，事实上，永远不会达到sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE); sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION), SensorManager.SENSOR_DELAY_NORMAL); ... @Override public void onSensorChanged(SensorEvent event) { float[] values = event.values; // Movement float azimuth = values[0]; float pitch = values[1]; float roll = values[2]; if ((-110 <= pitch && pitch <= -70) || (70 <= pitch && pitch <= 110)) { //PORTRAIT MODE portraitPitch = true; landscapePitch = false; Log.d(TAG, "portrait mode: pitch = " + pitch); } else if ((-20 <= pitch && pitch <= 20) || (-200 <= pitch && pitch <= -160) || (160 <= pitch && pitch <= 200)) { //LANDSCAPE MODE portraitPitch = false; landscapePitch = true; Log.d(TAG, "landscape mode : pitch = " + pitch); } if ((-20 <= roll && roll <= 20)) { //PORTRAIT MODE portraitRoll = true; landscapePitch = false; Log.d(TAG, "portrait mode: roll = " + roll); } else if ((-110 <= roll && roll <= -70) || (70 <= roll && roll <= 110)) { //LANDSCAPE MODE portraitRoll = false; landscapePitch = true; Log.d(TAG, "landscape mode : roll = " + roll); } if (portraitPitch && portraitRoll && !portrait) { portrait = true; landscape = false; rotateIconsToPortraitMode(); Log.d(TAG, "portrait mode for icons: pitch = " + pitch + ", roll = " + roll); } if (landscapePitch && landscapeRoll && !landscape) { landscape = true; portrait = false; rotateIconsToLandscapeMode(); Log.d(TAG, "landscape mode for icons: pitch = " + pitch + ", roll = " + roll); } }。

如何使用有关otateIconsToLandscapeMode()，azimuth和pitch的信息来确定设备的PORTRAIT或LANDSCAPE方向？我希望我的问题具体到足以保证具体答案。感谢。

Answer 1

在oncreate实例化OrientationEventListener

OrientationEventListener orientationEventListener = new OrientationEventListener(this)
    {
        @Override
        public void onOrientationChanged(int orientation)
        {
            Log.d(TAG, "orientation = " + orientation);
        }
    }; 

    orientationEventListener.enable();

使用方向值可以确定设备是纵向还是横向。

Answer 2

如果您只需要LANDSCAPE与PORTRAIT方向，则音高值应该足够。根据您的具体需求，它可能并不完美。但根据我的理解，你可以简单地使用音调。所以就像你拥有它一样，只需忽略roll。

如何从传感器确定设备方向

2 个答案: