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初探oVirt-体验sdk-python

down:            print( Stop VM.)             = down:                print(., end=)                sleep(1)            print(VM {0} is down!. format(vm_name))        else:            print( VM already down: {0}.format(vm_name))    except Exception = down:            print(., end=)            sleep(1)        print(VM {0} is down!. , action=store, type=string, dest=action,                 help=list|init|start|stop|delete|create)

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View事件分发、滑动冲突 详解

事件序列,从Down开始,到多个Move,再到Up结束,就是一个事件序列。 = ev.getAction(); final int actionMasked = action & MotionEvent.ACTION_MASK; Handle an initial down 事件DOWN时会清除 子view的 不允许父view拦截的flag。因为Down事件是事件序列的开始,一定会询问本身是否拦截。 { There are no touch targets and this action is not an initial down so this view group continues to 不是Down且子view没有处理,就是说本身拦截了DOWN,那后续的MOVE、UP就不再调用onInterceptTouchEvent询问,直接拦截。

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    探究 css touch-action 属性

    由此找了其他的属性值 发现还挺强大的touch-action: auto;touch-action: none;touch-action: pan-x;touch-action: pan-left;touch-action : pan-right;touch-action: pan-y;touch-action: pan-up;touch-action: pan-down;touch-action: pinch-zoom; 可以与 pan-y 、pan-up、pan-down 和/或 pinch-zoom 组合使用 pan-y 启用单指垂直平移手势。 pan-left, pan-right,pan-up,pan-down 启用以指定方向滚动开始的单指手势。 一旦滚动开始,方向可能仍然相反。 多个方向可以组合,除非有更简单的表示(例如,“pan-left pan-right”无效,因为“pan-x”更简单,而“pan-left pan-down”有效)。

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    Android PC投屏简单尝试—最终章2

    创建KeyEventpublic class KeyEventFactory { * 创建一个KeyEvent * public static KeyEvent keyEvent(int action, A repeat count for down events (> 0 if this is after the initial down) or event count for multiple events ; if (type == 1) { lastMouseDown = now; action = MotionEvent.ACTION_DOWN; } else { action = MotionEvent.ACTION_UP type = %dn, keycode, event->type); printf(b = %d, action type = %dn, SDLK_b, event->type); if (event 它发送时定义的长度是6 if (type < 2 && read == 6) {action down 1 down 0 up System.out.println(enter key event);

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    按键事件处理

    尤其被用在虚拟触屏按键FLAG_LONG_PRESS:长按事件...............................在明白了这些之后,在分析按键之前首先要是弄清楚按键按下时的action,标志等等来段程序测试下 长按是down--down--up然后释放时会有个up。 所以有了按键的action的log之后,就可以自己设计在什么情况下去做一些按键的处理,比如我如果想要在长按按键时做一个操作那么可以有三次查询到该按键的机会第一次,down,重复次数0 ,非长按第二次,down 不同的按键也许有不同的action,比如上下键左右键,如果长按的话会一直down,所以在处理之前先要明白按键在长按或者短按情况下到底是怎么响应的。 等等,你需要保证你拦截了事件的最后一个action,这样才能真真正正的把事件给拦截掉。这是我工作中遇到的问题,幸而有师傅指点,非常感谢~~

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    android viewgroup事件分发机制

    = null) {    this is weird, we got a pen down, but we thought it was  already down!   (MotionEvent.ACTION_DOWN);    We know we want to dispatch the event down, find a child  who can handle boolean isUpOrCancel = (action == MotionEvent.ACTION_UP) ||                 (action == MotionEvent.ACTION_CANCEL 赋值的mMotionTarget置为null,都UP了,当然置为null,下一次DOWN还会再赋值的~最后,修改坐标系统,然后调用target.dispatchTouchEvent(ev);正常情况下, retrun true ,则DOWN,MOVE,UP子View都不会捕获事件;如果你在MOVE return true , 则子View在MOVE和UP都不会捕获事件。

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    识别Android按键的短按和长按以及长按时长的判断

    mDown) { throw new IllegalStateException(key cant go up without being down); } mDuration = SystemClock.elapsedRealtime boolean isLongPress() { if (mDown) { throw new IllegalStateException(cant query press length during key down boolean isThreePress() { if (mDown) { throw new IllegalStateException(cant query press length during key down private void handleEnterKey(KeyEvent event) { int action = event.getAction(); if (action == KeyEvent.ACTION_DOWN ) { mEnterPressTimer.keyDown(); } else if (action == KeyEvent.ACTION_UP) { mEnterPressTimer.keyUp();

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    ViewGroup 事件分发

    boolean handled = false;判断当前view是否被覆盖    if (onFilterTouchEventForSecurity(ev)) {        final int action = ev.getAction();        final int actionMasked = action & MotionEvent.ACTION_MASK;          Handle ); restore action in case it was changed            } else {                intercepted = false;             }        } else {             There are no touch targets and this action is not an initial down             The important part is the action, not the contents.

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    Centos 配置eth0 提示Device does not seem to be present

    一.故障现象:# service network restartShutting down loopback insterface: Bringing up loopback insterface: Bringing 解决办法:# rm -rf etcudevrules.d70-persistent-net.rules# reboot ………………# service network restartShutting down em2,由于工作需要做了槽位调整,并启动了刀片故障现象:启动后网络不通,通过iDRAC登录后route查看缺省路由正常;重启网络服务:# service network restartShutting down line, and change only the value of the NAME= key.# PCI device 0x14e4:0x163a (bnx2) SUBSYSTEM==net, ACTION fd:ab:76:1e, ATTR{type}==1, KERNEL==eth*, NAME=em2# PCI device 0x14e4:0x163a (bnx2) SUBSYSTEM==net, ACTION

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    Android必知必会--事件分发机制

    --> Up滑动的事件组成就是:Down --> Move --> Move .... --> Up事件分发使用到的函数dispatchTouchEvent():用于事件分发onTouchEvent( disallowIntercept) { intercepted = onInterceptTouchEvent(ev); ev.setAction(action); restore action in final float x = event.getX(); final float y = event.getY(); final int viewFlags = mViewFlags; final int action CONTEXT_CLICKABLE) == CONTEXT_CLICKABLE; ····· if (clickable || (viewFlags & TOOLTIP) == TOOLTIP) { switch (action 判断这个方法的事件的方法就是通过做出Up动作时的时间和做出Down动作时的时间间隔。如果Down和Up两个动作之间的时间间隔小于500ms,就是点击事件。总结?

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    Android ViewGroup事件分发

    dispatchTouchEvent(MotionEvent ev) { ... boolean handled = false; ... 1.取消之前的手势 Handle an initial down disallowIntercept) { intercepted = onInterceptTouchEvent(ev); ev.setAction(action); restore action in case it was changed } else { intercepted = false; } } else { There are no touch targets and this action is not an initial down so this view group continues to intercept touches. intercepted = true; } ... coordinate space of a particular child view, * filters out irrelevant pointer ids, and overrides its action

    52020

    Android View的事件分发详解

    result = child.dispatchTouchEvent(ev); } return result;}4.原理论述1.同一个事件序列是指从手指接触屏幕开始到离开屏幕那一刻产生的一系列事件,其中以down 2.同一个事件序列,只能被一个view拦截处理,如果它不消耗down事件,那么其他的事件也不会交给它处理,而且一旦它处理了down事件,以后的事件便不会调用onInterceptTouchEvent此方法判断是否拦截 3.如果view不消耗除down以外的其他事件,那么这个点击事件会消失,此时父元素的onTouchEvent并不会被调用,并且当前view可以持续接收后续事件,最终这些消失的点击事件将交由activity disallowIntercept) { intercepted = onInterceptTouchEvent(ev); ev.setAction(action); restore action in case it was changed } else { intercepted = false; } } else { There are no touch targets and this action

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    React中如何不使用插件实现组件出现或消失动画

    from{ transform: translate(0, 100%); opacity: 0; } to{ transform: translate(0, 0); opacity: 1; }} 离开动画.down-out , down-out); 如果为离开,则触发action toggleContent,设置contentIsShow为false,隐藏content if(dWrap.classLIst.contains (down-out)){ this.props.toggleContent(! this.props.contentIsShow); } } clickHandler() { 触发离开,先添加动画class down-out,并在动画结束后调用想用的action let dWrap = ReactDOM.findDOMNode(this.refs.animateWrap); dWrap.classList.add(down-out); }}onAnimationEnd2016-09

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    React中如何不使用插件实现组件出现或消失动画

    from{ transform: translate(0, 100%); opacity: 0; } to{ transform: translate(0, 0); opacity: 1; }} 离开动画.down-out , down-out); 如果为离开,则触发action toggleContent,设置contentIsShow为false,隐藏content if(dWrap.classLIst.contains (down-out)){ this.props.toggleContent(! this.props.contentIsShow); } } clickHandler() { 触发离开,先添加动画class down-out,并在动画结束后调用想用的action let dWrap = ReactDOM.findDOMNode(this.refs.animateWrap); dWrap.classList.add(down-out); }}onAnimationEnd2016-09

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    android view事件分发机制

    super(context, attrs);      }   @Override public boolean onTouchEvent(MotionEvent event)      {   int action  = event.getAction();   switch (action)          {   case MotionEvent.ACTION_DOWN:              Log.e super.onTouchEvent(event);      }   @Override public boolean dispatchTouchEvent(MotionEvent event)      {   int action  = event.getAction();   switch (action)          {   case MotionEvent.ACTION_DOWN:              Log.e  = event.getAction();   switch (action)                  {   case MotionEvent.ACTION_DOWN:

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    Android--事件分发机制(二)

    = ev.getAction(); final int actionMasked = action & MotionEvent.ACTION_MASK; 前面的代码和View的差不多 Handle an initial down. if (actionMasked == MotionEvent.ACTION_DOWN) { Throw away all previous state when starting mFirstTouchTarget为null(一般不会出现这种情况),intercepted为true There are no touch targets and this action is not an initial down so this view group continues to intercept touches. intercepted = true; } If intercepted actionMasked == MotionEvent.ACTION_HOVER_MOVE) { final int actionIndex = ev.getActionIndex(); always 0 for down

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    GestureDetector源码解析

    final int action = ev.getAction();     ...      float focusX = sumX div;     final float focusY = sumY div;     boolean handled = false;     switch (action 接着进入到各个action处理中。 DOWN事件点和第二次点击的DOWN事件点的距离要小于doubleTapSlop。 是第二次点击时的DOWN事件。

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    项目实践 | 行人跟踪与摔倒检测报警

    本项目主要检测识别的行为有7类:Standing, Walking, Sitting, Lying Down, Stand up, Sit down, Fall Down。 resnet50, help=Backbone model for SPPE FastPose model.) par.add_argument(--show_detected, default=False, action store_true, help=Show all bounding box from detection.) par.add_argument(--show_skeleton, default=True, action track_id = track.track_id bbox = track.to_tlbr().astype(int) center = track.get_center().astype(int) action = {}: {:.2f}%.format(action_name, out.max() * 100) if action_name == Fall Down: clr = (255, 0, 0) elif

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    细说Android事件传递

    下面通过代码来说明,自定义一个TestButton继承自Button,重写它的dispath***和onTouchEvent方法,为了简单只关注down和up事件。 , 1);           }   boolean handled = false;   if (onFilterTouchEventForSecurity(ev)) {   final int action  = ev.getAction();   final int actionMasked = action & MotionEvent.ACTION_MASK;    Handle an initial  );  restore action in case it was changed                 } else {                       intercepted  = false;                   }               } else {    There are no touch targets and this action is

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    android绘制触点轨迹的代码

    and pointer index. * @return The action, such as {@link #ACTION_DOWN} or * the combination of {@link getPressure(int)}, * and {@link #getSize(int)} to get information about the pointer that has * gone down 注意这里的触摸点的index,指的是Action中的,而不是event中的,这是两个概念。 actual pointer * number associated with the data, accounting for individual pointers * going up and down Value may be from 0 * (the first pointer that is down) to {@link #getPointerCount()}-1. * public final

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