android input命令支持多指触摸成果展示-千里马framework实战开发

hi

input命令扩展提示部分

generic_x86_64:/ # input -h                                                                                                      
Error: Unknown command: -h
Usage: input [<source>] <command> [<arg>...]The sources are: dpadkeyboardmousetouchpadgamepadtouchnavigationjoysticktouchscreenstylustrackballThe commands and default sources are:text <string> (Default: touchscreen)keyevent [--longpress] <key code number or name> ... (Default: keyboard)tap <x> <y> (Default: touchscreen)mutiple-tap pointId <x> <y> .....(Default: touchscreen)mutiple-touch action pointId <x> <y> ...... (action should be one of down,move,up;Default: touchscreen)swipe <x1> <y1> <x2> <y2> [duration(ms)] (Default: touchscreen)draganddrop <x1> <y1> <x2> <y2> [duration(ms)] (Default: touchscreen)press (Default: trackball)roll <dx> <dy> (Default: trackball)

input帮助文案中额外添加了2个命令： mutiple-tap 和 mutiple-touch

mutiple-tap

mutiple-tap pointId …(Default: touchscreen)
代表多个手指的点击事件，其实就是motionevent有down和up两个事件成对，即类似click，有一个按下和抬起
使用规则参数多了一个pointId代表手指，一般从0开始。

mutiple-tap 操作如下：

日志打印如下：

dispatchTouchEvent ev = MotionEvent { action=ACTION_DOWN, actionButton=0, id[0]=0, x[0]=200.0, y[0]=200.0, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=14469497, downTime=14469497, deviceId=0, source=0x1002 }
dispatchTouchEvent ev = MotionEvent { action=ACTION_POINTER_DOWN(1), actionButton=0, id[0]=0, x[0]=200.0, y[0]=200.0, toolType[0]=TOOL_TYPE_FINGER, id[1]=1, x[1]=210.0, y[1]=210.0, toolType[1]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=2, historySize=0, eventTime=14469498, downTime=14469498, deviceId=0, source=0x1002 }
dispatchTouchEvent ev = MotionEvent { action=ACTION_POINTER_UP(0), actionButton=0, id[0]=0, x[0]=200.0, y[0]=200.0, toolType[0]=TOOL_TYPE_FINGER, id[1]=1, x[1]=210.0, y[1]=210.0, toolType[1]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=2, historySize=0, eventTime=14469498, downTime=14469498, deviceId=0, source=0x1002 }
dispatchTouchEvent ev = MotionEvent { action=ACTION_UP, actionButton=0, id[0]=1, x[0]=210.0, y[0]=210.0, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=14469499, downTime=14469499, deviceId=0, source=0x1002 }

看可以看到app接受到的多指事件也是正常的
第一个手指 down
– 》第二个手指 ACTION_POINTER_DOWN(1)
–》第一个手指抬起ACTION_POINTER_UP(0)
–》第二个手指抬起ACTION_UP

mutiple-touch

mutiple-touch action pointId … (action should be one of down,move,up;Default: touchscreen)

仅仅代表触摸事件，它没有和tap一样有一个down和up成对，它只有一个action，而且这个action还是需要用户指定的，是down，move，up中的一个，一般都需要严格按照规则：
事件先有down，再有move，最后有up的顺序。
使用规则参数相比上面tap额外多了一个action，它来指定当前触摸具体action类型
命令如下：
input mutiple-touch down 0 200 200 1 210 210
按下后其实一直是down状态，会等待up
输入down：
generic_x86_64:/ # input mutiple-touch down 0 200 200 1 210 210

输入move：
generic_x86_64:/ # input mutiple-touch move 0 220 220 1 230 230

输入up：
generic_x86_64:/ # input mutiple-touch up 0 220 220 1 230 230

相关日志：

dispatchTouchEvent ev = MotionEvent { action=ACTION_DOWN, actionButton=0, id[0]=0, x[0]=200.0, y[0]=200.0, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=19712743, downTime=19712743, deviceId=0, source=0x1002 }
dispatchTouchEvent ev = MotionEvent { action=ACTION_POINTER_DOWN(1), actionButton=0, id[0]=0, x[0]=200.0, y[0]=200.0, toolType[0]=TOOL_TYPE_FINGER, id[1]=1, x[1]=210.0, y[1]=210.0, toolType[1]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=2, historySize=0, eventTime=19712745, downTime=19712745, deviceId=0, source=0x1002 }
dispatchTouchEvent ev = MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=220.0, y[0]=220.0, toolType[0]=TOOL_TYPE_FINGER, id[1]=1, x[1]=230.0, y[1]=230.0, toolType[1]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=2, historySize=0, eventTime=19720967, downTime=19720967, deviceId=0, source=0x1002 }dispatchTouchEvent ev = MotionEvent { action=ACTION_POINTER_UP(0), actionButton=0, id[0]=0, x[0]=220.0, y[0]=220.0, toolType[0]=TOOL_TYPE_FINGER, id[1]=1, x[1]=230.0, y[1]=230.0, toolType[1]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=2, historySize=0, eventTime=19724517, downTime=19724517, deviceId=0, source=0x1002 }
dispatchTouchEvent ev = MotionEvent { action=ACTION_UP, actionButton=0, id[0]=1, x[0]=230.0, y[0]=230.0, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=19724518, downTime=19724518, deviceId=0, source=0x1002 }

日志也展示多指的Down --》 Move—》UP
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