lua corona - 如何禁用触摸事件 widget.newScrollView

Question

我有一个 widget.newScrollView 组件和一个 widget.newButton 在它前面。不幸的是，当我单击我的按钮时，它还会调用我的 ScrollView "tap" 处理程序。如何阻止我的 ScrollView 获取此事件？这是我正在使用的一些代码：

local function handleButtonEvent( event )
    if ( "ended" == event.phase ) then
        print( "Button was pressed and released" )
    end
    return true; **I tried this - but it had no effect**
end

已添加

local button1 = widget.newButton(
{
    label = "button",
    onEvent = handleButtonEvent,
    emboss = false,
    shape = "roundedRect",
    width = 400,
    height = 100,
    cornerRadius = 32,
    fillColor = { default={1,0,0,1}, over={1,0.1,0.7,1} },
    strokeColor = { default={1,0.4,0,1}, over={0.8,0.8,1,1} },
    strokeWidth = 4,
    fontSize=100;
}

我有一个 display.NewImages 数组（行星）和我的处理程序 - 像这样：

local planets = {};
planets[1] = display.newImage( "planetHexs/001.png", _topLeft_x, _topLeft_y);
planets[2] = display.newImage( "planetHexs/002.png", _topLeft_x, _topLeft_y + _planet_height2 );
....

local scrollView = widget.newScrollView(
{
    top = 0,
    left = 0,
    width = display.actualContentWidth,
    height = display.actualContentHeight,
    scrollWidth = 0,
    scrollHeight = 0,
    backgroundColor = { 0, 0, 0, 0.5},
    verticalScrollDisabled=true;
}

for i = 1, #planets do
    local k = planets[i];
    scrollView:insert( k )
end

function PlanetTapped( num )
    print( "You touched the object!"..num );
end

for i = 1, #planets do
    local k = planets[i];
    k:addEventListener( "tap", function() PlanetTapped(i) end )
end

我得到这个打印日志：

Button was pressed and released

You touched the object2

Answer 1

您必须 return true 您的事件函数以防止传播。这实质上告诉 Corona 事件已正确处理，并且不应触发该事件的更多事件侦听器。 You can read more about event propagation here in the docs。

"tap" 和 "touch" 事件由不同的侦听器处理，因此如果您希望在触摸按钮时停止点击，您需要向按钮添加一个 "tap" 侦听器同样，这基本上只是 returns true 来防止或阻止对其背后的任何点击事件。

button1:addEventListener("tap", function() return true end)

由于按钮没有点击事件，点击事件只需通过按钮，到达按钮后面确实有"tap"事件的任何对象。

lua corona - 如何禁用触摸事件 widget.newScrollView

lua corona - how to disable touch events widget.newScrollView

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