堆栈内存溢出
  简体   繁体   English

通过gluon CharmDown服务从指南针和加速度计传感器获取值

[英]Get values from compass and accelerometer sensors, with gluon CharmDown services

 原文  2017-02-01 18:06:30  2   1    android/ javafx/ accelerometer/ compass-geolocation/ gluon

问题描述

I have a phone ARCHOS DIAMOND S with Android 5.1 Lollipop, that includes accelerometer and compass sensors. 我有一部配备Android 5.1 Lollipop的ARCHOS DIAMOND S手机，其中包括加速度计和指南针传感器。 I have checked them with some freeware. 我已经用一些免费软件检查了它们。

Moreover, DisplayService, OrientationService work fine. 而且，DisplayService，OrientationService可以正常工作。 But not the compass and accelerometer services. 但不是指南针和加速度计服务。

Have I forgotten something in the Java code? 我忘记了Java代码中的某些内容吗？

Thanks for your help 谢谢你的帮助

Accelerometer: "acceleration.getX()" does not work. 加速度计：“ acceleration.getX（）”不起作用。 In the console, ""Test accelero 2a"" is written and, then, a shutdown message appears 在控制台中，写入““ Test accelero 2a””，然后显示关闭消息 

Label labelVarAafficherAccelX = new Label();
Label labelVarAafficherAccelY = new Label();
System.out.println("Test accelero 1");
Services.get(AccelerometerService.class).ifPresent(service -> {
    Acceleration acceleration = service.getCurrentAcceleration();  
    System.out.println("Test accelero 2a");
    double getX = acceleration.getX();  // that does not work
    System.out.println("**Test accelero 2b**");
    String varAafficherAccelX = Double.toString(acceleration.getX());
    String varAafficherAccelY = Double.toString(acceleration.getY());
    labelVarAafficherAccelX.setText(varAafficherAccelX);
    labelVarAafficherAccelY.setText(varAafficherAccelY);
    System.out.printf("Acceleration field: %.2f, %.2f, %.2f ", acceleration.getX(), acceleration.getY(), acceleration.getZ());
});

Compass: The return value from the heading service is always 0.0 (whereas I had successfully tested this phone sensor with a freeware). 指南针：标题服务的返回值始终为0.0（而我已经使用免费软件成功测试了此手机传感器）。 

Label labelGluonHeading = new Label();
Services.get(CompassService.class).ifPresent(service -> {
    double heading = service.getHeading(); // heading (cap): from 0 to 359.99
    System.out.println("**Heading:** " +heading);
    labelGluonHeading.setText("GLUON_Cap: " + Double.toString(heading));
});

In the build.gradle, the downconfig works fine because, when I add a service, it is loaded once before building the application 在build.gradle中，downconfig可以正常工作，因为当我添加服务时，在构建应用程序之前将其加载一次

The build.gradle: build.gradle： 

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'org.javafxports:jfxmobile-plugin:1.3.2'
    }
}

apply plugin: 'org.javafxports.jfxmobile'

repositories {
    jcenter()
    maven {
        url 'http://nexus.gluonhq.com/nexus/content/repositories/releases'
    }
}

mainClassName = 'com.gluonapplication.GluonApplication'

dependencies {
    compile 'com.gluonhq:charm:4.3.0'
}

jfxmobile {
     downConfig {
        version '3.2.0'
        plugins 'accelerometer', 'compass', 'device', 'orientation', 'storage', 'vibration', 'display', 'magnetometer', 'lifecycle', 'statusbar', 'position'
    }

    android {
        applicationPackage = 'com.gluonapplication'
        manifest = 'src/android/AndroidManifest.xml'
        androidSdk = 'C:/Users/pascal/AppData/Local/Android/sdk'
        resDirectory = 'src/android/res'
        compileSdkVersion = '23'
        buildToolsVersion = '25.0.1'
    }
    ios {
         infoPList = file('src/ios/Default-Info.plist')
        forceLinkClasses = [
                'com.gluonhq.**.*',
                'javax.annotations.**.*',
                'javax.inject.**.*',
                'javax.json.**.*',
                'org.glassfish.json.**.*'
        ]
    }
}

ABOUT THE ACCELEROMETER , the trace is: 关于加速计 ，跟踪为： 

02-01 19:59:39.349 17994 18039 I System.out: Test accelero 2b

02-01 19:59:39.350 17994 18039 W System.err: Exception in Application start method

02-01 19:59:39.352   317 18045 W OMXCodec: FILL_BUFFER_DONE(buffer: 4072872736, size: 46080, flags: 0x00000000, timestamp: 1920000 us (1.92 secs))

02-01 19:59:39.352   317 18045 W OMXCodec: EMPTY_BUFFER_DONE(buffer: 4072870816)

02-01 19:59:39.353   317 18045 D OMXCodec: [OMX.MTK.AUDIO.DECODER.MP3] Calling emptyBuffer on buffer 0xf2c313a0 (length 9600), timestamp 6720000 us (6.72 secs)

02-01 19:59:39.355 17994 18039 I System.out: QuantumRenderer: shutdown

02-01 19:59:39.356 17994 18034 W System.err: java.lang.reflect.InvocationTargetException

02-01 19:59:39.356 17994 18034 W System.err:    at java.lang.reflect.Method.invoke(Native Method)

02-01 19:59:39.356 17994 18034 W System.err:    at java.lang.reflect.Method.invoke(Method.java:372)

02-01 19:59:39.356 17994 18034 W System.err:    at javafxports.android.DalvikLauncher$1.run(DalvikLauncher.java:188)

02-01 19:59:39.356 17994 18034 W System.err:    at java.lang.Thread.run(Thread.java:818)

02-01 19:59:39.356 17994 18034 W System.err: Caused by: java.lang.RuntimeException: Exception in Application start method

02-01 19:59:39.356 17994 18034 W System.err:    at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)

02-01 19:59:39.356 17994 18034 W System.err:    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$138(LauncherImpl.java:182)

02-01 19:59:39.356 17994 18034 W System.err:    at com.sun.javafx.application.LauncherImpl.access$lambda$1(LauncherImpl.java)

02-01 19:59:39.356 17994 18034 W System.err:    at com.sun.javafx.application.LauncherImpl$$Lambda$2.run(Unknown Source)

02-01 19:59:39.356 17994 18034 W System.err:    ... 1 more

02-01 19:59:39.356 17994 18034 W System.err: Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'double com.gluonhq.charm.down.plugins.Acceleration.getX()' on a null object reference

02-01 19:59:39.356 17994 18037 D Surface : Surface::setBuffersDimensions(this=0xf49e5500,w=720,h=1152)

02-01 19:59:39.356   288   960 I BufferQueueProducer: [SurfaceView](this:0x7f72779000,id:231,api:1,p:17994,c:288) new GraphicBuffer needed

02-01 19:59:39.356   288   960 I [MALI][Gralloc]: Usage: 0xb00, format: 0x1 stride: 720 vertical_stride: 1152 size: 3317760

02-01 19:59:39.357   317 18045 W OMXCodec: FILL_BUFFER_DONE(buffer: 4072872832, size: 46080, flags: 0x00000000, timestamp: 2160000 us (2.16 secs))

02-01 19:59:39.357   288   960 D GraphicBuffer: alloc, handle(0x7f7277d7a0) (w:720 h:1152 s:720 f:0x1 u:0x000b00) err(0)

02-01 19:59:39.357   317 18045 W OMXCodec: EMPTY_BUFFER_DONE(buffer: 4072870912)

02-01 19:59:39.357   317 18045 D OMXCodec: [OMX.MTK.AUDIO.DECODER.MP3] Calling emptyBuffer on buffer 0xf2c31400 (length 9600), timestamp 6960000 us (6.96 secs)

02-01 19:59:39.358 17994 18034 W System.err:    at com.gluonapplication.GluonApplication.lambda$start$0(GluonApplication.java:287)

02-01 19:59:39.358 17994 18034 W System.err:    at com.gluonapplication.GluonApplication$$Lambda$1.accept(Unknown Source)

02-01 19:59:39.358 17994 18034 W System.err:    at java.util.Optional.ifPresent(Optional.java:154)

02-01 19:59:39.358 17994 18034 W System.err:    at com.gluonapplication.GluonApplication.start(GluonApplication.java:282)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$145(LauncherImpl.java:863)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.javafx.application.LauncherImpl.access$lambda$8(LauncherImpl.java)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.javafx.application.LauncherImpl$$Lambda$9.run(Unknown Source)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$158(PlatformImpl.java:326)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.javafx.application.PlatformImpl.access$lambda$6(PlatformImpl.java)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.javafx.application.PlatformImpl$$Lambda$7.run(Unknown Source)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.javafx.application.PlatformImpl.lambda$null$156(PlatformImpl.java:295)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.javafx.application.PlatformImpl.access$lambda$18(PlatformImpl.java)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.javafx.application.PlatformImpl$$Lambda$19.run(Unknown Source)

02-01 19:59:39.358 17994 18034 W System.err:    at java.security.AccessController.doPrivileged(AccessController.java:52)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.javafx.application.PlatformImpl.lambda$runLater$157(PlatformImpl.java:294)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.javafx.application.PlatformImpl.access$lambda$5(PlatformImpl.java)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.javafx.application.PlatformImpl$$Lambda$6.run(Unknown Source)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.glass.ui.monocle.RunnableProcessor.runLoop(RunnableProcessor.java:92)

02-01 19:59:39.358 17994 18034 W System.err:    at com.sun.glass.ui.monocle.RunnableProcessor.run(RunnableProcessor.java:51)

02-01 19:59:39.358 17994 18034 W System.err:    ... 1 more

02-01 19:59:39.358 17994 18037 D GraphicBuffer: register, handle(0xf00b17a0) (w:720 h:1152 s:720 f:0x1 u:0x000b00)

02-01 19:59:39.360   371   371 D QMCX983D: waitting for enable m or o sensor

02-01 19:59:39.360   371   371 D QMCX983D: QMC_IOCTL_GET_OPEN_STATUS failed

02-01 19:59:39.360   371   371 D QMCX983D: QMC_IOCTL_GET_DELAY failed

02-01 19:59:39.360   371   371 D QMCX983D: QMC_IOCTL_SET_YPR failed!

02-01 19:59:39.361   317 18045 W OMXCodec: FILL_BUFFER_DONE(buffer: 4072872928, size: 46080, flags: 0x00000000, timestamp: 2400000 us (2.40 secs))

02-01 19:59:39.361   317 18045 W OMXCodec: EMPTY_BUFFER_DONE(buffer: 4072871008)

02-01 19:59:39.361   317 18045 D OMXCodec: [OMX.MTK.AUDIO.DECODER.MP3] Calling emptyBuffer on buffer 0xf2c31460 (length 9600), timestamp 7200000 us (7.20 secs)

02-01 19:59:39.365 17994 18037 D Surface : Surface::setBuffersDimensions(this=0xf49e5500,w=720,h=1152)

02-01 19:59:39.366   317 18045 W OMXCodec: FILL_BUFFER_DONE(buffer: 4072873024, size: 46080, flags: 0x00000000, timestamp: 2640000 us (2.64 secs))

02-01 19:59:39.366   288   474 I BufferQueueProducer: [SurfaceView](this:0x7f72779000,id:231,api:1,p:17994,c:288) new GraphicBuffer needed

Note: the trace is the same with or with the "New Acceleration" Acceleration acceleration = new Acceleration(0, 0, 0, LocalDateTime.now()); 注意：跟踪与“ New Acceleration”相同或与之相同。Acceleration加速度= new Acceleration（0，0，0，LocalDateTime.now（））; acceleration = service.getCurrentAcceleration(); 加速度= service.getCurrentAcceleration（）;

ABOUT THE HEADING SENSOR , the trace is: 关于航向传感器 ，跟踪为： 

02-01 20:20:24.870 19093 19137 I System.out: **Deb test compass**

02-01 20:20:24.870   371   371 D QMCX983D: QMC_IOCTL_SET_YPR failed!

02-01 20:20:24.871   317   897 E AudioALSAPlaybackHandlerBase: openPcmDriver(), pcm_start(0xf2c7c7c0) fail due to cannot start channel: Broken pipe

02-01 20:20:24.871   317   897 D AudioALSAPlaybackHandlerBase: -openPcmDriver(), mPcm = 0xf2c7c7c0

02-01 20:20:24.871   317   897 D AudioALSAHardwareResourceManager: +startOutputDevice(), new_devices = 0x2, mStartOutputDevicesCount = 0 SampleRate = 44100

02-01 20:20:24.871   317   897 D AudioALSADriverUtility: GetPropertyValue key = af.resouce.extdac_support value = 0

02-01 20:20:24.871   317   897 D AudioALSADeviceConfigManager: GetDeviceDescriptorbyname

02-01 20:20:24.871   317   897 D AudioALSADeviceConfigManager: CheckDeviceExist exist devicename = headphone_output

02-01 20:20:24.871   317   897 D AudioALSADeviceConfigManager: ApplyDeviceTurnonSequenceByName() DeviceName = headphone_output descriptor->DeviceStatusCounte = 0

02-01 20:20:24.871   317   897 D AudioALSADeviceConfigManager: cltname = Audio_Amp_R_Switch cltvalue = On

02-01 20:20:24.872   317 19143 W OMXCodec: FILL_BUFFER_DONE(buffer: 4072872640, size: 46080, flags: 0x00000000, timestamp: 1680000 us (1.68 secs))

02-01 20:20:24.872   317 19143 W OMXCodec: EMPTY_BUFFER_DONE(buffer: 4072870720)

02-01 20:20:24.873   317 19143 D OMXCodec: [OMX.MTK.AUDIO.DECODER.MP3] Calling emptyBuffer on buffer 0xf2c31340 (length 9600), timestamp 6480000 us (6.48 secs)

02-01 20:20:24.873   317   897 D AudioALSADeviceConfigManager: cltname = Audio_Amp_L_Switch cltvalue = On

02-01 20:20:24.873   317   897 D AudioALSADeviceConfigManager: GetDeviceDescriptorbyname

02-01 20:20:24.873   317   897 D AudioALSADeviceConfigManager: CheckDeviceExist exist devicename = ext_speaker_output

02-01 20:20:24.873   317   897 D AudioALSADeviceConfigManager: ApplyDeviceTurnonSequenceByName() DeviceName = ext_speaker_output descriptor->DeviceStatusCounte = 0

02-01 20:20:24.873   317   897 D AudioALSADeviceConfigManager: cltname = Ext_Speaker_Amp_Switch cltvalue = On

02-01 20:20:24.875   849  3163 D SensorService: Calling batch handle==1 flags=0rate=10000000 timeout== 0

02-01 20:20:24.875   849  3163 D SensorService: SensorDevice::batch: ident=0x7f61119cc0, handle=0x00000001, flags=0, period_ns=10000000 timeout=0

02-01 20:20:24.875   849  3163 D SensorService:     >>> curr_period=66667000 min_period=10000000 curr_timeout=0 min_timeout=0

02-01 20:20:24.875   849  3163 D SensorService: Calling activate on 1

02-01 20:20:24.875   849  3163 D SensorService: SensorDevice::activate: ident=0x7f61119cc0, handle=0x00000001, enabled=1, count=2

02-01 20:20:24.875   849  3163 D SensorService: enable index=0

02-01 20:20:24.875   849  3163 D SensorService:     >>> actuating h/w setDelay 1 10000000

02-01 20:20:24.875   849  3163 E Sensors : handleToDriver handle(0)

02-01 20:20:24.875   849  3163 D Accel   : setDelay: (handle=0, ns=10000000)

02-01 20:20:24.875   849  3163 D Accel   : no ACC setDelay control attr 


02-01 20:20:24.875   849  3163 E Sensors : new setDelay handle(0),ns(10000000)m, error(-1), index(2)

02-01 20:20:24.875   849  3163 E Sensors : new setDelay handle(0),ns(10000000) err! go to hwmsen

02-01 20:20:24.875   849  3163 D Hwmsen_sensors: setDelay: (handle=0, ns=10000000)

02-01 20:20:24.875   849  3163 D Hwmsen_sensors: setDelay: (what=0, ms=10)

02-01 20:20:24.875   849  3163 D Hwmsen_sensors: really setDelay: (what=0, ms=10)

02-01 20:20:24.875   849  1694 D SensorService: Calling batch handle==2 flags=0rate=100000000 timeout== 0

02-01 20:20:24.875   849  1694 D SensorService: SensorDevice::batch: ident=0x7f61119cc0, handle=0x00000002, flags=0, period_ns=100000000 timeout=0

02-01 20:20:24.875   849  1694 D SensorService:     >>> curr_period=-1 min_period=100000000 curr_timeout=-1 min_timeout=0

02-01 20:20:24.875   849  1694 D SensorService: Calling activate on 2

02-01 20:20:24.875   849  1694 D SensorService: SensorDevice::activate: ident=0x7f61119cc0, handle=0x00000002, enabled=1, count=1

02-01 20:20:24.875   849  1694 D SensorService: enable index=0

02-01 20:20:24.875   849  1694 D SensorService:     >>> actuating h/w activate handle=2 enabled=1

02-01 20:20:24.875   849  1694 D Sensors : activate handle =1, enable = 1

02-01 20:20:24.875   849  1694 E Sensors : handleToDriver handle(1)

02-01 20:20:24.875   849  1694 D Sensors : use new sensor index=3, mSensors[index](7089b000)

02-01 20:20:24.875   849  1694 D Magnetic: fwq enable: handle:1, en:1 


02-01 20:20:24.875   849  1694 D Magnetic: handle(1),path:magactive 


02-01 20:20:24.875   849  1694 D Magnetic: no magntic enable attr 


02-01 20:20:24.875   849  1694 D Sensors : use old sensor err(-1),index(3) go to old hwmsen

02-01 20:20:24.875   849  1694 D Hwmsen_sensors: Hwmsen_Enable: handle:1, en:1 


02-01 20:20:24.876   849  1694 D Hwmsen_sensors: virtual int Hwmsen::enable(int32_t, int): handle 1, enable or disable 1!

02-01 20:20:24.877   317 19143 W OMXCodec: FILL_BUFFER_DONE(buffer: 4072872736, size: 46080, flags: 0x00000000, timestamp: 1920000 us (1.92 secs))

02-01 20:20:24.877   317 19143 W OMXCodec: EMPTY_BUFFER_DONE(buffer: 4072870816)

02-01 20:20:24.877   317 19143 D OMXCodec: [OMX.MTK.AUDIO.DECODER.MP3] Calling emptyBuffer on buffer 0xf2c313a0 (length 9600), timestamp 6720000 us (6.72 secs)

02-01 20:20:24.881   317 19143 W OMXCodec: FILL_BUFFER_DONE(buffer: 4072872832, size: 46080, flags: 0x00000000, timestamp: 2160000 us (2.16 secs))

02-01 20:20:24.881   317 19143 W OMXCodec: EMPTY_BUFFER_DONE(buffer: 4072870912)

02-01 20:20:24.881   317 19143 D OMXCodec: [OMX.MTK.AUDIO.DECODER.MP3] Calling emptyBuffer on buffer 0xf2c31400 (length 9600), timestamp 6960000 us (6.96 secs)

02-01 20:20:24.882   849  1694 D Hwmsen_sensors: active_sensors =13


02-01 20:20:24.882   849  1694 D SensorService:     >>> actuating h/w setDelay 2 100000000

02-01 20:20:24.882   849  1694 E Sensors : handleToDriver handle(1)

02-01 20:20:24.882   849  1694 D Magnetic: no MAG setDelay control attr


02-01 20:20:24.882   849  1694 E Sensors : new setDelay handle(1),ns(100000000)m, error(-1), index(3)

02-01 20:20:24.882   849  1694 E Sensors : new setDelay handle(1),ns(100000000) err! go to hwmsen

02-01 20:20:24.882   849  1694 D Hwmsen_sensors: setDelay: (handle=1, ns=100000000)

02-01 20:20:24.882   849  1694 D Hwmsen_sensors: setDelay: (what=1, ms=100)

02-01 20:20:24.882   849  1694 D Hwmsen_sensors: really setDelay: (what=1, ms=100)

02-01 20:20:24.883 19093 19137 I System.out: **Heading: 0.0**

02-01 20:20:24.884 19093 19137 I System.out: Fin test compass

02-01 20:20:24.884 19093 19137 I System.out: Deb test orientation

02-01 20:20:24.885   317 19143 W OMXCodec: FILL_BUFFER_DONE(buffer: 4072872928, size: 46080, flags: 0x00000000, timestamp: 2400000 us (2.40 secs))

02-01 20:20:24.885   317 19143 W OMXCodec: EMPTY_BUFFER_DONE(buffer: 4072871008)

02-01 20:20:24.885   317 19143 D OMXCodec: [OMX.MTK.AUDIO.DECODER.MP3] Calling emptyBuffer on buffer 0xf2c31460 (length 9600), timestamp 7200000 us (7.20 secs)

02-01 20:20:24.889 19093 19137 I System.out: Fin test orientation

02-01 20:20:24.889 19093 19137 I System.out: Hello World! Debug avec adb - fin d'initialisation

02-01 20:20:24.889   317 19143 W OMXCodec: FILL_BUFFER_DONE(buffer: 4072873024, size: 46080, flags: 0x00000000, timestamp: 2640000 us (2.64 secs))

02-01 20:20:24.889   317 19143 W OMXCodec: EMPTY_BUFFER_DONE(buffer: 4072871104)

02-01 20:20:24.889   317 19143 D OMXCodec: [OMX.MTK.AUDIO.DECODER.MP3] Calling emptyBuffer on buffer 0xf2c314c0 (length 9600), timestamp 7440000 us (7.44 secs)

1 个解决方案

解决方案1
 0  2017-02-01 19:38:15

Given that both acceleration and heading change quickly over time, you should listen to changes in the properties AccelerometerService::accelerationProperty and CompassService::headingProperty , instead of getting a single value in a given instant (as it will be probably 0 or null) since the sensors might not be ready yet. 鉴于加速度和航向都随时间快速变化，因此您应该侦听AccelerometerService::accelerationProperty和CompassService::headingProperty属性的变化，而不是在给定的瞬间获得单个值（因为它可能为0或null），因为传感器可能尚未准备好。

This is how you can listen to heading variations: 这是您可以听取标题变化的方法： 

Services.get(CompassService.class)
    .ifPresent(s -> s.headingProperty()
          .addListener((obs, ov, nv) -> 
               labelGluonHeading.setText(String.format("Heading: %.2f\u00b0", 
                     nv.doubleValue()))));

And to the accelerometer sensor: 对于加速度传感器： 

Services.get(AccelerometerService.class)
    .ifPresent(s -> s.accelerationProperty()
        .addListener((obs, ov, nv) -> 
            labelGluonAcceleration.setText(String.format("%.1f %.1f %.1f", 
                    nv.getX(), nv.getY(), nv.getZ()))));

暂无
暂无

声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

相关问题 为什么使用加速度计和磁力计来获得罗盘值 - why use accelerometer and magnetometer to get compass values 如何提高加速度计和罗盘传感器的精度？ - How to improve accuracy of accelerometer and compass sensors? Android，使用指南针从加速度计中移除重力 - Android, remove gravity from the accelerometer using the compass 过滤掉来自Android倾斜（加速度计和磁场）传感器的噪声？ - Filtering out noise from Android tilt (accelerometer and magnetic field) sensors? 及时获取加速度计值 - Get accelerometer values in time Android传感器：指南针 - Android Sensors: Compass 是否可以将加速度计和数字罗盘组合在一起以得到精美的陀螺仪？ - Is it possible to combine an Accelerometer and Digital Compass to get a fine Gyroscope? 指南针和加速度计精度 - Compass and Accelerometer precision 如何从onSensorChanged到ThreatForLoopA类获取加速度计值？ - How can i get accelerometer values from onSensorChanged to class ThreatForLoopA? 通过加速度计获取方向值 - get orientation values through accelerometer
相关标签
 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM