Android手表-Wear Develop 、华为Watch开发旋转按钮的坑

Wear 上的旋转输入

某些 Wear OS 设备支持旋转输入，如侧面旋钮 (RSB)。当用户旋转旋钮时，应用的当前视图应向上或向下滚动。

如果您在应用中使用 ScrollView、ListView、HorizontalScrollView 或 WearableRecyclerView，那么您的应用视图将默认支持旋转输入。如果您使用上述视图以外的自定义视图，或者您想手动处理旋转输入事件，请参阅添加自定义旋转输入滚动。

请参阅以下相关资源：

Wear OS 设计原则

焦点最佳做法

为响应旋转输入事件，您的滚动视图必须获得焦点。大多数情况下，滚动视图会自动获得焦点。在您创建 Activity 后，您的滚动视图会立即获得焦点。但是，在某些情况下，您需要手动处理应用视图的焦点，例如：

如果您的可滚动视图附加在 Activity.onCreate() 之后（例如，如果您在构建界面之前等待网络请求完成），您必须在附加该视图之后调用 requestFocus。
如果您的可滚动视图最初为 INVISIBLE 或 GONE，在将其设置为 VISIBLE 时必须调用 requestFocus。
如果您的 Activity 包含多个可滚动视图（例如，如果您使用的是嵌套滚动），您需要从中选择一个要获得焦点的视图（通常通过 <requestFocus /> 标记进行设置）。RSB 滚动目前不支持嵌套滚动。
如果您的界面包含其他某种在用户与它交互时会窃取焦点的视图（这种情况很少见；最常见的示例为 InputText），则您需要为用户提供某种方式，让他们能够在可滚动视图失去焦点后使其重新获得焦点。这通常可通过侦听可滚动视图上的点按操作并在响应中调用 requestFocus 实现。

添加自定义旋转输入滚动

如果您的可滚动视图本身不支持旋转输入滚动，或者您想要执行一些不同于滚动的操作以响应旋转输入事件（例如放大/缩小、旋转表盘等），您可以使用穿戴式设备支持库中的 RotaryEncoder 方法。

以下代码段说明了如何使用 RotaryEncoder 在应用视图中添加自定义滚动：

    myView.setOnGenericMotionListener(View.OnGenericMotionListener { v, ev ->
        if (ev.action == MotionEvent.ACTION_SCROLL && RotaryEncoder.isFromRotaryEncoder(ev)) {
            // Don't forget the negation here
            val delta = -RotaryEncoder.getRotaryAxisValue(ev) *
                    RotaryEncoder.getScaledScrollFactor(context)

            // Swap these axes if you want to do horizontal scrolling instead
            v.scrollBy(0, Math.round(delta))

            return@OnGenericMotionListener true
        }

        false
    })

在模拟器上测试旋转输入按钮

您可以使用 Android 模拟器模拟 Wear 设备上的旋转输入滚动。您可以在运行项目时在模拟器上启动 Wear 应用，也可以将 APK 文件拖动到模拟器上以安装 APK。

如需在模拟器上测试旋转输入，请执行以下操作：

在 SDK 管理器中，使用 SDK 工具标签获取 Android 模拟器 26.0.3 或更高版本。
使用 API 25 创建一个 AVD（Android 虚拟设备）。

在 Studio 中，依次选择 Tools > Android > AVD Manager。使用 API 25 创建一个新的 Wear 设备。
在 Android Studio 中运行模拟器。
尝试执行旋转输入滚动。

点击溢出按钮（模拟器工具栏底部的三个点）。点击新窗口中的 Rotary input 标签页以打开旋转输入界面。

以下视频展示了模拟器中的旋转输入。

焦点行为提示

从 Android 9（API 级别 28）开始，视图不再隐式获得焦点，而是必须显式获得焦点。
应使用 android:focusable="true" 和 android:focusableInTouchMode="true" 将可滚动视图注册为可聚焦。
默认情况下，启动 Activity 甚至点按某个视图不会使其聚焦（即使该视图可聚焦）。为了实现此行为，视图必须使用 <requestFocus /> 标记或手动调用 View.requestFocus()。
系统只会将旋转输入事件发送到聚焦的视图。这些事件不会在视图层次结构中向上传递。当且仅当没有聚焦的视图或聚焦的视图从 View.onGenericMotionEvent 返回 false 时，系统才会将事件发送到 Activity.onGenericMotionEvent。

第一坑

2021-05-25 10:09:44.860 31038-31038/com.newolf.watchinput E/MessageQueue-JNI: java.lang.IllegalStateException: Could not find wearable shared library classes. Please add <uses-library android:name="com.google.android.wearable" android:required="false" /> to the application manifest
        at android.support.wearable.internal.SharedLibraryVersion.verifySharedLibraryPresent(SharedLibraryVersion.java:39)
        at android.support.wearable.internal.SharedLibraryVersion.version(SharedLibraryVersion.java:25)
        at android.support.wearable.input.RotaryEncoder.isLibAvailable(RotaryEncoder.java:53)
        at android.support.wearable.input.RotaryEncoder.isFromRotaryEncoder(RotaryEncoder.java:68)
        at com.newolf.watchinput.MainActivity$initListener$3.onGenericMotion(MainActivity.kt:75)
        at android.view.View.dispatchGenericMotionEventInternal(View.java:13798)
        at android.view.View.dispatchGenericMotionEvent(View.java:13783)
        at android.widget.ScrollView.dispatchGenericMotionEvent(ScrollView.java:2280)
        at android.view.ViewGroup.dispatchGenericFocusedEvent(ViewGroup.java:2669)
        at android.view.View.dispatchGenericMotionEvent(View.java:13779)
        at android.view.ViewGroup.dispatchGenericFocusedEvent(ViewGroup.java:2669)
        at android.view.View.dispatchGenericMotionEvent(View.java:13779)
        at android.view.ViewGroup.dispatchGenericFocusedEvent(ViewGroup.java:2669)
        at android.view.View.dispatchGenericMotionEvent(View.java:13779)
        at com.android.internal.policy.DecorView.superDispatchGenericMotionEvent(DecorView.java:723)
        at com.android.internal.policy.PhoneWindow.superDispatchGenericMotionEvent(PhoneWindow.java:2041)
        at android.app.Activity.dispatchGenericMotionEvent(Activity.java:4183)
        at com.android.internal.policy.DecorView.dispatchGenericMotionEvent(DecorView.java:682)
        at android.view.ViewRootImpl$ViewPostImeInputStage.processGenericMotionEvent(ViewRootImpl.java:6318)
        at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:6050)
        at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:5462)
        at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:5515)
        at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:5481)
        at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:5639)
        at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:5489)
        at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:5696)
        at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:5462)
        at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:5515)
        at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:5481)
        at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:5489)
        at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:5462)
        at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:8519)
        at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:8439)
        at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:8392)
        at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:8764)
        at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:239)
        at android.os.MessageQueue.nativePollOnce(Native Method)
        at android.os.MessageQueue.next(MessageQueue.java:363)
        at android.os.Looper.loop(Looper.java:176)
        at android.app.ActivityThread.main(ActivityThread.java:8453)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1088)

java.lang.IllegalStateException: Could not find wearable shared library classes. Please add <uses-library android:name="com.google.android.wearable" android:required="false" /> to the application manifest

然而，在manifest中是有配置的，如下：

<uses-library
            android:name="com.google.android.wearable"
            android:required="false" />

结论：

也就是说，华为的Watch中是没有com.google.android.wearable这个library的。

第二坑

修改代码如下：

val scrollView = findViewById<ScrollView>(R.id.scrollView)
        scrollView.requestFocus()
        scrollView.setOnGenericMotionListener(View.OnGenericMotionListener { v, ev ->
            Log.e(TAG, "initListener: ev = $ev" )
            if (ev.action == MotionEvent.ACTION_SCROLL ) {
                // Don't forget the negation here
               val delta = 0.toDouble()

                // Swap these axes if you want to do horizontal scrolling instead
                Log.e(TAG, "initListener: delta = $delta" )
                v.scrollBy(0, Math.round(delta).toInt())

                return@OnGenericMotionListener true
            }

            false
        })

打印内容如下：

2021-05-25 10:16:04.548 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832196, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.557 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832214, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.641 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832297, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.661 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832318, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.678 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832335, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.693 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832350, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.713 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832370, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.734 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832389, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.758 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832413, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.779 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832434, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.799 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832454, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.816 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832470, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.835 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832486, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.847 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832501, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.861 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832517, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.879 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832534, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.897 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832553, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.918 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832573, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:04.940 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832594, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.117 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832772, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.134 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832789, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.150 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70832806, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.467 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833122, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.483 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833141, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.500 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833156, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.515 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833172, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.531 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833188, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.547 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833205, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.563 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833220, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.588 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833245, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.603 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833261, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.619 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833276, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.635 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833292, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.657 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833314, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.693 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833351, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.709 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833367, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.723 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833380, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.739 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833396, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.755 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833413, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.770 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833428, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.787 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833444, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.805 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833461, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.822 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833477, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.836 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833492, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.857 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833513, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.877 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833532, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.898 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833553, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.914 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833569, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.929 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833584, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.946 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833602, downTime=0, deviceId=6, source=0x400000, displayId=-1 }
2021-05-25 10:16:05.961 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833616, downTime=0, deviceId=6, source=0x400000, displayId=-1 }

WTF！！！

2021-05-25 10:16:06.283 31328-31328/com.newolf.watchinput E/MainActivity: initListener: ev = MotionEvent { action=ACTION_SCROLL, actionButton=0, id[0]=0, x[0]=0.0, y[0]=0.0, toolType[0]=TOOL_TYPE_UNKNOWN, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=70833940, downTime=0, deviceId=6, source=0x400000, displayId=-1 }

可以看到，除了事件的action是对的，其它的x值和y值都是0，这还怎么玩？？？

结论：

华为Watch对Google 的API进行很多的改动，目前暂时无法适配Watch的旋转按钮事件让列表滑动起来。

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