var nvMask, nvImageMenu; class NvImageMenu { constructor(arg) { this.isShow = false } show({ list, cancelText }, callback) { if (!list) { list = [{ "img": "/static/sharemenu/wechatfriend.png", "text": "图标文字" }] } //以下为计算菜单的nview绘制布局,为固定算法,使用者无关关心 var screenWidth = plus.screen.resolutionWidth //以360px宽度屏幕为例,上下左右边距及2排按钮边距留25像素,图标宽度55像素,同行图标间的间距在360宽的屏幕是30px,但需要动态计算,以此原则计算4列图标分别的left位置 //图标下的按钮文字距离图标5像素,文字大小12像素 //底部取消按钮高度固定为44px //TODO 未处理横屏和pad,这些情况6个图标应该一排即可 var margin = 20, iconWidth = 60, icontextSpace = 5, textHeight = 12 var left1 = margin / 360 * screenWidth var iconSpace = (screenWidth - (left1 * 2) - (iconWidth * 4)) / 3 //屏幕宽度减去左右留白间距,再减去4个图标的宽度,就是3个同行图标的间距 if (iconSpace <= 5) { //屏幕过窄时,缩小边距和图标大小,再算一次 margin = 15 iconWidth = 40 left1 = margin / 360 * screenWidth iconSpace = (screenWidth - (left1 * 2) - (iconWidth * 4)) / 3 //屏幕宽度减去左右留白间距,再减去4个图标的宽度,就是3个同行图标的间距 } var left2 = left1 + iconWidth + iconSpace var left3 = left1 + (iconWidth + iconSpace) * 2 var left4 = left1 + (iconWidth + iconSpace) * 3 var top1 = left1 var top2 = top1 + iconWidth + icontextSpace + textHeight + left1 const TOP = { top1, top2 }, LEFT = { left1, left2, left3, left4 }; nvMask = new plus.nativeObj.View("nvMask", { //先创建遮罩层 top: '0px', left: '0px', height: '100%', width: '100%', backgroundColor: 'rgba(0,0,0,0.2)' }); nvImageMenu = new plus.nativeObj.View("nvImageMenu", { //创建底部图标菜单 bottom: '0px', left: '0px', height: (iconWidth + textHeight + 2 * margin) * Math.ceil(list.length / 4) + 44 + 'px', //'264px', width: '100%', backgroundColor: 'rgb(255,255,255)' }); nvMask.addEventListener("click", () => { //处理遮罩层点击 // console.log('处理遮罩层点击'); this.hide() callback({ event: "clickMask" }) }) let myList = [] list.forEach((item, i) => { myList.push({ tag: 'img', src: item.img, position: { top: TOP['top' + (parseInt(i / 4) + 1)], left: LEFT['left' + (1 + i % 4)], width: iconWidth, height: iconWidth } }) myList.push({ tag: 'font', text: item.text, textStyles: { size: textHeight }, position: { top: TOP['top' + (parseInt(i / 4) + 1)] + iconWidth + icontextSpace, left: LEFT['left' + (1 + i % 4)], width: iconWidth, height: textHeight } }) }) //绘制底部图标菜单的内容 nvImageMenu.draw([{ tag: 'rect', //菜单顶部的分割灰线 color: '#e7e7e7', position: { top: '0px', height: '1px' } }, { tag: 'font', text: cancelText, //底部取消按钮的文字 textStyles: { size: '14px' }, position: { bottom: '0px', height: '44px' } }, { tag: 'rect', //底部取消按钮的顶部边线 color: '#e7e7e7', position: { bottom: '45px', height: '1px' } }, ...myList ]) nvMask.show() nvImageMenu.show() // 开始动画 /* plus.nativeObj.View.startAnimation({ type: 'slide-in-bottom', duration: 300 }, nvImageMenu, {}, function() { console.log('plus.nativeObj.View.startAnimation动画结束'); // 关闭原生动画 plus.nativeObj.View.clearAnimation(); nvImageMenu.show() }); */ this.isShow = true nvImageMenu.addEventListener("click", e => { //处理底部图标菜单的点击事件,根据点击位置触发不同的逻辑 // console.log("click menu"+JSON.stringify(e)); if (e.screenY > plus.screen.resolutionHeight - 44) { //点击了底部取消按钮 // callback({event:"clickCancelButton"}) this.hide() } else if (e.clientX < 5 || e.clientX > screenWidth - 5 || e.clientY < 5) { //屏幕左右边缘5像素及菜单顶部5像素不处理点击 } else { //点击了图标按钮 var iClickIndex = -1 //点击的图标按钮序号,第一个图标按钮的index为0 var iRow = e.clientY < (top2 - (left1 / 2)) ? 0 : 1 var iCol = -1 if (e.clientX < (left2 - (iconSpace / 2))) { iCol = 0 } else if (e.clientX < (left3 - (iconSpace / 2))) { iCol = 1 } else if (e.clientX < (left4 - (iconSpace / 2))) { iCol = 2 } else { iCol = 3 } if (iRow == 0) { iClickIndex = iCol } else { iClickIndex = iCol + 4 } // console.log("点击按钮的序号: " + iClickIndex); // if (iClickIndex >= 0 && iClickIndex <= 5) { //处理具体的点击逻辑,此处也可以自行定义逻辑。如果增减了按钮,此处也需要跟着修改 // } callback({ event: "clickMenu", index: iClickIndex }) } }) /* nvImageMenu.addEventListener("touchstart", function(e) { if (e.screenY > (plus.screen.resolutionHeight - 44)) { //TODO 这里可以处理按下背景变灰的效果 } }) nvImageMenu.addEventListener("touchmove", function(e) { //TODO 这里可以处理按下背景变灰的效果 if (e.screenY > plus.screen.resolutionHeight - 44) {} }) nvImageMenu.addEventListener("touchend", function(e) { //TODO 这里可以处理释放背景恢复的效果 }) */ } hide() { if (this.isShow) { nvMask.hide() nvImageMenu.hide() this.isShow = false } } } export default NvImageMenu