如何使用android和SensorSimulator获取传感器值并将其存储在数据库中_Android_Android Emulator_Android Sensors

如何使用android和SensorSimulator获取传感器值并将其存储在数据库中

android android-emulator

如何使用android和SensorSimulator获取传感器值并将其存储在数据库中,android,android-emulator,android-sensors,Android,Android Emulator,Android Sensors,我正在开发一个android应用程序，它从android手机获取传感器值，以便通过一个将这些值存储在数据库中的web服务使用这些值。我没有测试传感器值的真正设备，所以我使用了传感器模拟器[http://code.google.com/p/openintents/wiki/SensorSimulator][1] 现在的问题是，每次我运行“活动”时都会出现错误，下面是“活动”的代码（我使用的是API 15 Google API平台：4.0.3）下面是错误消息 11-14 18:49:57.123

我正在开发一个android应用程序，它从android手机获取传感器值，以便通过一个将这些值存储在数据库中的web服务使用这些值。我没有测试传感器值的真正设备，所以我使用了传感器模拟器[http://code.google.com/p/openintents/wiki/SensorSimulator][1] 现在的问题是，每次我运行“活动”时都会出现错误，下面是“活动”的代码（我使用的是API 15 Google API平台：4.0.3）

下面是错误消息

11-14 18:49:57.123: E/AndroidRuntime(4351): FATAL EXCEPTION: main
11-14 18:49:57.123: E/AndroidRuntime(4351): java.lang.RuntimeException: Unable to instantiate      activity ComponentInfo{com.tunisietelecom.android/com.tunisietelecom.android.SimulationActivity}: java.lang.ClassNotFoundException: com.tunisietelecom.android.SimulationActivity
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1880)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.ActivityThread.access$600(ActivityThread.java:123)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.os.Handler.dispatchMessage(Handler.java:99)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.os.Looper.loop(Looper.java:137)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.ActivityThread.main(ActivityThread.java:4424)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at java.lang.reflect.Method.invokeNative(Native Method)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at java.lang.reflect.Method.invoke(Method.java:511)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at dalvik.system.NativeStart.main(Native Method)
11-14 18:49:57.123: E/AndroidRuntime(4351): Caused by: java.lang.ClassNotFoundException: com.tunisietelecom.android.SimulationActivity
11-14 18:49:57.123: E/AndroidRuntime(4351):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.Instrumentation.newActivity(Instrumentation.java:1023)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1871)
11-14 18:49:57.123: E/AndroidRuntime(4351):     ... 11 more

原因：java.lang.ClassNotFoundException:com.tuniietelecom.android.SimulationActivity

您是否在清单文件中声明了您的活动

原因：java.lang.ClassNotFoundException:com.tuniietelecom.android.SimulationActivity

您是否在清单文件中声明了您的活动？

我解决了这个问题。将库添加到类路径时，库不会导出到手机。您需要进入Proyect属性->Java构建路径->订购并导出，然后“勾选”需要导出到手机的库。如果你不这样做，图书馆就不会在电话上，Android也不会找到它

@Ridicully:是的，它被宣布为主要的activity@Ridicully：是的，我做了，它被宣布为主要活动

11-14 18:49:57.123: E/AndroidRuntime(4351): FATAL EXCEPTION: main
11-14 18:49:57.123: E/AndroidRuntime(4351): java.lang.RuntimeException: Unable to instantiate      activity ComponentInfo{com.tunisietelecom.android/com.tunisietelecom.android.SimulationActivity}: java.lang.ClassNotFoundException: com.tunisietelecom.android.SimulationActivity
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1880)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.ActivityThread.access$600(ActivityThread.java:123)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.os.Handler.dispatchMessage(Handler.java:99)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.os.Looper.loop(Looper.java:137)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.ActivityThread.main(ActivityThread.java:4424)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at java.lang.reflect.Method.invokeNative(Native Method)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at java.lang.reflect.Method.invoke(Method.java:511)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at dalvik.system.NativeStart.main(Native Method)
11-14 18:49:57.123: E/AndroidRuntime(4351): Caused by: java.lang.ClassNotFoundException: com.tunisietelecom.android.SimulationActivity
11-14 18:49:57.123: E/AndroidRuntime(4351):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.Instrumentation.newActivity(Instrumentation.java:1023)
11-14 18:49:57.123: E/AndroidRuntime(4351):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1871)
11-14 18:49:57.123: E/AndroidRuntime(4351):     ... 11 more