Android的天然传感器定位帮助 [英] Android natural sensor orientation help

问题描述

我试图完成雷托•迈耶的推荐方式进行更改保持屏幕的方向。从在谷歌IO他谈话的幻灯片（见＃23）可以在的 Android的Protips：凡下载幻灯片和code片段 的

我已经经历了code踩并将其设置的值，但屏幕方向仍改变。仅供参考，我在申请注册该监听器。

下面是我的code：

 最后的SensorManager SM =（的SensorManager）getSystemService（Context.SENSOR_SERVICE）;
    sm.registerListener（
        新SensorEventListener（）{
            @覆盖
            公共无效onSensorChanged（SensorEvent sensorEvent）{
                如果（sensorEvent.sensor.getType（）== Sensor.TYPE_ORIENTATION）{
                    最后的窗口管理器，WM =（窗口管理器）getApplicationContext（）
                            .getSystemService（Context.WINDOW_SERVICE）;
                    最终显示显示= wm.getDefaultDisplay（）;

                    INT X = SensorManager.AXIS_X;
                    INT Y = SensorManager.AXIS_Y;

                    开关（display.getRotation（））{
                    案例Surface.ROTATION_90：
                        X = SensorManager.AXIS_Y;
                        Y = SensorManager.AXIS_MINUS_X;

                        打破;
                    案例Surface.ROTATION_180：
                        Y = SensorManager.AXIS_MINUS_Y;

                        打破;
                    案例Surface.ROTATION_270：
                        X = SensorManager.AXIS_MINUS_Y;
                        Y = SensorManager.AXIS_MINUS_X;

                        打破;
                    案例Surface.ROTATION_0：
                    默认：
                        打破;
                    }

                    SensorManager.remapCoordinateSystem（sensorEvent.values​​，X，Y，新的浮动[] {}）;
                }
            }

            @覆盖
            公共无效onAccuracyChanged（传感器传感器，诠释精度）{

            }
        }，sm.getDefaultSensor（Sensor.TYPE_ORIENTATION）
        SensorManager.SENSOR_DELAY_NORMAL）;
 

解决方案

所有30+线code，目前没有工作可以与某些XML值来代替你的的Andr​​oidManifest.xml 文件。

我们都看到

 ＆LT;活动机器人：名称=机器人YourActivity。：screenOrientation =画像和GT;＆LT; /活性GT;
 

和我们都知道，不会有景观的默认方向片很好地工作。但是，你们有多少人看到了这？

 ＆LT;活动机器人：名称=机器人YourActivity。：screenOrientation =nosensor＆GT;＆LT; /活性GT;
 

基本上，它使得它使得该装置的方向不会对传感器作出反应。所以，如果您的默认设置为横向或纵向不会改变。我已经在我的的Droid＆NBSP对其进行了测试，X 并在的 Xoom的和它的作品就像我早就预料到。

我希望这可以帮助别人。

I am trying to accomplish Reto Meier's recommended way for keeping the screen orientation from changing. The slides from his talk during Google IO (see #23) can be found in Android Protips: Where to Download the Slides and Code Snippets.

I have stepped through the code and it setting the values, but the screen orientation still changes. FYI, I register this listener in the Application.

Here is my code:

final SensorManager sm = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
    sm.registerListener(
        new SensorEventListener() {
            @Override
            public void onSensorChanged(SensorEvent sensorEvent) {
                if (sensorEvent.sensor.getType() == Sensor.TYPE_ORIENTATION) {
                    final WindowManager wm = (WindowManager) getApplicationContext()
                            .getSystemService(Context.WINDOW_SERVICE);
                    final Display display = wm.getDefaultDisplay();

                    int x = SensorManager.AXIS_X;
                    int y = SensorManager.AXIS_Y;

                    switch (display.getRotation()) {
                    case Surface.ROTATION_90:
                        x = SensorManager.AXIS_Y;
                        y = SensorManager.AXIS_MINUS_X;

                        break;
                    case Surface.ROTATION_180:
                        y = SensorManager.AXIS_MINUS_Y;

                        break;
                    case Surface.ROTATION_270:
                        x = SensorManager.AXIS_MINUS_Y;
                        y = SensorManager.AXIS_MINUS_X;

                        break;
                    case Surface.ROTATION_0:
                    default:
                        break;
                    }

                    SensorManager.remapCoordinateSystem(sensorEvent.values, x, y, new float[] {});
                }
            }

            @Override
            public void onAccuracyChanged(Sensor sensor, int accuracy) {

            }
        }, sm.getDefaultSensor(Sensor.TYPE_ORIENTATION),
        SensorManager.SENSOR_DELAY_NORMAL);

解决方案

All 30+ lines of code that currently are not working can be replaced with some XML values in your AndroidManifest.xml file.

We have all seen

<activity android:name=".YourActivity" android:screenOrientation="portrait" ></activity>

and we all know that doesn't work well with tablets that have a default orientation of landscape. But how many of you have seen this?

<activity android:name=".YourActivity" android:screenOrientation="nosensor" ></activity>

Basically it makes it so that the device's orientation doesn't respond to the sensor. So if your default is landscape or portrait it won't change. I have tested it on my Droid X and on a Xoom and it works like I would have expected it to.

I hope this helps others.

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