我试着用EyeGestureLib检查玻璃上的Wink。
我创建了一个新项目,就像这个家伙对示例项目这里所做的那样。
我的代码的问题部分如下:
private EyeGestureManager mEyeGestureManager;
private EyeGestureListener mEyeGestureListener;
private EyeGesture target1 = EyeGesture.WINK;
private EyeGesture target2 = EyeGesture.DOUBLE_BLINK;在onCreate内部,我有:
mEyeGestureManager = EyeGestureManager.from(this);
mEyeGestureListener = new EyeGestureListener();
// print out each eye gesture is supported or not
for (EyeGesture eg : EyeGesture.values()) {
boolean supported = mEyeGestureManager.isSupported(eg);
Log.d(TAG, eg.name() + ":" + supported);
}我的程序在打开后立即崩溃。我意识到问题在于当它试图访问mEyeGestureManager时。在代码中使用mEyeGestureManager的任何地方都会使程序crash.According与我所观察到的一样,即使在mEyeGestureManager = EyeGestureManager.from(this);之后,mEyeGestureManager也是空的。
当我改变
mEyeGestureManager = EyeGestureManager.from(this);
至
mEyeGestureManager = new EyeGestureManager();它停止崩溃,mEyeGestureManager不再为null,但不会检测眨眼或双眨眼。
我的眼镜运行的是XE21,但我将其降级为XE18.3,因为我的研究表明,EyeGestureLib在glass > XE18.3上不能正常工作。
https://github.com/thorikawa/EyeGestureLib/issues/2
现在我有了XE18.3,但它不起作用。当我有mEyeGestureManager =新的EyeGestureManager()时,Wink就不能工作了;我得到:
Supported:﹕ BLINK:false
Supported:﹕ DOFF:false
Supported:﹕ DON:false
Supported:﹕ DOUBLE_BLINK:false
Supported:﹕ DOUBLE_WINK:false
Supported:﹕ LOOK_AT_SCREEN:false
Supported:﹕ LOOK_AWAY_FROM_SCREEN:false
Supported:﹕ WINK:false但当我有:
mEyeGestureManager = EyeGestureManager.from(this);它马上就坠毁了。
我去安装了已编译的示例“EyeGestureDemo-调试-1.1.apk”,的工作得很好,但我的没有。
我做错了什么?我已经尝试了三天了。谷歌没有官方的API,但我不想等到他们发布一个。我需要这个作为我的学校项目尽快。有人知道问题出在哪里吗?
编辑:崩溃日志
12-02 09:39:54.347 3758-3758/com.inno.inno.glassplugin D/AndroidRuntime﹕ Shutting down VM
12-02 09:39:54.347 3758-3758/com.inno.inno.glassplugin W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x41f78bd8)
12-02 09:39:54.363 3758-3758/com.inno.inno.glassplugin E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.inno.inno.glassplugin, PID: 3758
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.inno.inno.glassplugin/com.inno.inno.glassplugin.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2235)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2285)
at android.app.ActivityThread.access$800(ActivityThread.java:138)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1236)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:149)
at android.app.ActivityThread.main(ActivityThread.java:5061)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.inno.inno.glassplugin.MainActivity.onCreate(MainActivity.java:92)
at android.app.Activity.performCreate(Activity.java:5236)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1089)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2199)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2285)
at android.app.ActivityThread.access$800(ActivityThread.java:138)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1236)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:149)
at android.app.ActivityThread.main(ActivityThread.java:5061)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)
at dalvik.system.NativeStart.main(Native Method)发布于 2014-12-02 17:51:32
API很久以前就已经改变了(我认为大约在XE 20左右)。
为了找出EyeGestureManager的工作原理,我不得不用反射进行大量的挖掘。
下面是我的更新版本,以及一些演示用法的示例代码:https://gist.github.com/victorkp/9094a6aea9db236a97f3
https://stackoverflow.com/questions/27214236
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