【Android】关于touch设备TOOL_TYPE_STYLUS
这里通过log来查看触控笔的motionEvent，
@Override
public boolean onTouchEvent(MotionEvent event) {
Log.i(tag, "event=" + event);
return true;
}
@Override
public boolean onGenericMotionEvent(MotionEvent event) {
Log.i(tag, "G event=" + event);
return true;
}在靠近屏幕时，调用到onGenericMotionEvent
在触碰到屏幕时，调用onTouchEvent,
toolType[0]=TOOL_TYPE_STYLUS
一次点击的完整log
10-14 12:25:30.040 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_ENTER, actionButton=0, id[0]=0, x[0]=2142.9934, y[0]=1068.1862, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=142798665, downTime=0, deviceId=7, source=0x5002, displayId=0, eventId=16461402 }
10-14 12:25:30.067 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2146.1409, y[0]=1059.1779, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=13, eventTime=142798692, downTime=0, deviceId=7, source=0x5002, displayId=0, eventId=983447964 }
10-14 12:25:30.083 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2148.7458, y[0]=1056.4645, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=7, eventTime=142798710, downTime=0, deviceId=7, source=0x5002, displayId=0, eventId=645840300 }
10-14 12:25:30.092 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2149.6143, y[0]=1055.9219, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=1, eventTime=142798713, downTime=0, deviceId=7, source=0x5002, displayId=0, eventId=62681315 }
10-14 12:25:30.099 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2152.1106, y[0]=1054.4023, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=5, eventTime=142798726, downTime=0, deviceId=7, source=0x5002, displayId=0, eventId=1026885681 }
10-14 12:25:30.108 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2155.041, y[0]=1053.5342, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=142798734, downTime=0, deviceId=7, source=0x5002, displayId=0, eventId=738838838 }
10-14 12:25:30.116 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2157.9717, y[0]=1052.9915, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=142798742, downTime=0, deviceId=7, source=0x5002, displayId=0, eventId=945623392 }
10-14 12:25:30.125 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2160.034, y[0]=1052.9915, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=142798750, downTime=0, deviceId=7, source=0x5002, displayId=0, eventId=209887185 }
10-14 12:25:30.133 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2163.1816, y[0]=1053.4255, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=142798759, downTime=0, deviceId=7, source=0x5002, displayId=0, eventId=372229236 }
10-14 12:25:30.141 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2165.678, y[0]=1054.0768, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=142798767, downTime=0, deviceId=7, source=0x5002, displayId=0, eventId=216054123 }
10-14 12:25:30.150 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2168.3914, y[0]=1054.728, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=142798775, downTime=0, deviceId=7, source=0x5002, displayId=0, eventId=101492618 }
10-14 12:25:30.153 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2171.756, y[0]=1054.9451, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=1, eventTime=142798780, downTime=0, deviceId=7, source=0x5002, displayId=0, eventId=861304425 }
10-14 12:25:30.153 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_EXIT, actionButton=0, id[0]=0, x[0]=2171.756, y[0]=1054.9451, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=142798782, downTime=0, deviceId=7, source=0x5002, displayId=0, eventId=866096615 }
10-14 12:25:30.155 6190 6190 I test9 : event=MotionEvent { action=ACTION_DOWN, actionButton=0, id[0]=0, x[0]=2171.756, y[0]=1054.9451, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=142798782, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=406230247 }
10-14 12:25:30.158 6190 6190 I test9 : event=MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=2171.539, y[0]=1054.9451, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=2, eventTime=142798785, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=120979047 }
10-14 12:25:30.166 6190 6190 I test9 : event=MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=2170.3452, y[0]=1054.728, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=4, eventTime=142798794, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=72378347 }
10-14 12:25:30.174 6190 6190 I test9 : event=MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=2169.6938, y[0]=1053.9683, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=4, eventTime=142798802, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=72421242 }
10-14 12:25:30.183 6190 6190 I test9 : event=MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=2168.8257, y[0]=1053.2085, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=4, eventTime=142798810, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=507279949 }
10-14 12:25:30.191 6190 6190 I test9 : event=MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=2168.3914, y[0]=1052.7744, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=4, eventTime=142798819, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=103703126 }
10-14 12:25:30.200 6190 6190 I test9 : event=MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=2167.5232, y[0]=1052.6659, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=4, eventTime=142798827, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=385426269 }
10-14 12:25:30.208 6190 6190 I test9 : event=MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=2167.0889, y[0]=1052.2317, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=4, eventTime=142798835, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=752640004 }
10-14 12:25:30.216 6190 6190 I test9 : event=MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=2166.4377, y[0]=1052.1232, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=4, eventTime=142798844, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=42588775 }
10-14 12:25:30.225 6190 6190 I test9 : event=MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=2166.2207, y[0]=1052.1232, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=142798852, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=1020026684 }
10-14 12:25:30.226 6190 6190 I test9 : event=MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=2166.0037, y[0]=1052.1232, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x2000000, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=142798852, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=191886775 }
10-14 12:25:30.232 6190 6190 I test9 : event=MotionEvent { action=ACTION_UP, actionButton=0, id[0]=0, x[0]=2166.0037, y[0]=1052.1232, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=142798854, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=1059956846 }
10-14 12:25:30.234 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_ENTER, actionButton=0, id[0]=0, x[0]=2165.7866, y[0]=1052.3402, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=142798854, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=156568735 }
10-14 12:25:30.235 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2165.3523, y[0]=1052.5574, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=2, eventTime=142798858, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=277665343 }
10-14 12:25:30.241 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2164.2668, y[0]=1054.0768, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=142798867, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=98280364 }
10-14 12:25:30.249 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2161.4448, y[0]=1056.4645, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=142798875, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=421868677 }
10-14 12:25:30.257 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2157.9717, y[0]=1059.0693, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=142798883, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=485500730 }
10-14 12:25:30.266 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2154.4985, y[0]=1061.3485, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=142798891, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=152502290 }
10-14 12:25:30.274 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2147.8774, y[0]=1063.5192, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=142798900, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=926486184 }
10-14 12:25:30.283 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2139.086, y[0]=1066.0155, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=142798908, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=338019200 }
10-14 12:25:30.291 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2128.7747, y[0]=1070.3568, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=4, eventTime=142798918, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=1058054799 }
10-14 12:25:30.300 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_MOVE, actionButton=0, id[0]=0, x[0]=2126.9294, y[0]=1071.9849, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=2, eventTime=142798924, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=497747189 }
10-14 12:25:30.300 6190 6190 I test9 : G event=MotionEvent { action=ACTION_HOVER_EXIT, actionButton=0, id[0]=0, x[0]=2126.9294, y[0]=1071.9849, toolType[0]=TOOL_TYPE_STYLUS, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=142798928, downTime=142798782, deviceId=7, source=0x5002, displayId=0, eventId=588130330 }在 Android 中，触控笔（Stylus）是一种特殊的输入设备，它可以提供更精确和细致的输入方式。Android 提供了相应的触控笔事件处理机制，以支持触控笔的使用。
触控笔事件与触摸事件略有不同，因为触控笔通常提供了更多的信息，如压力、倾斜角度等。在处理触控笔事件时，你可以使用以下方法和属性：
-
onTouchEvent(): 在View或Activity中重写onTouchEvent()方法，可以接收触控笔事件。你可以根据事件的类型和属性来处理触控笔事件。 -
MotionEvent: 触控笔事件使用MotionEvent类表示，它提供了许多有用的方法来获取触控笔事件的信息。例如，使用event.getToolType()方法可以检测事件的工具类型，通过event.getPressure()方法可以获取触压力度，使用event.getOrientation()方法可以获取触控笔的倾斜角度等。
在 Android 中，onGenericMotionEvent() 是一个回调方法，用于处理通用输入事件（Generic Motion Event）。它是 View 类的一个方法，用于接收并处理与输入设备相关的通用事件。
通用输入事件可以包括鼠标、轨迹球、游戏手柄等多种输入设备的事件。这些事件与触摸事件略有不同，因为它们提供了更丰富的输入信息，如鼠标滚轮的滚动、轨迹球的移动、游戏手柄的摇杆操作等。