小编Pie*_*oli的帖子

我在 Safari 上遇到了 SVG 的 foreignObjects 元素的问题。我正在使用 SVG 元素以及我正在使用的 d3.js 库。

我所做的是在画布上附加一个 foreignObject 元素，因为与 rect 或其他 SVG 元素不同，不允许将 html 元素放入其中。现在，经过几天的开发，我注意到 Safari 似乎不允许将 html 元素放在 foreignObject 中。更好的是，它允许做并且所有似乎都根据检查员工作，但是我放在 foreignObject 里面有一个背景设置。

结果是我可以在画布内正确拖动foreignObject和div，但与Chrome或Firefox不同，div的背景留在画布左上角而不是div。

在下面，我粘贴了我附加到画布的样式和外部对象代码的部分

SVG

<foreignObject transform="translate(304,215)rotate(-174.86597769360367)" height="180" width="40" class="dragging">
<div class="new-rect" style="background-image: url(data:image/png;base64,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); left:-45px;">
</div>
</foreignObject>

风格

foreignObject{
    cursor:pointer;
    position:relative;
}
foreignObject div.new-rect{
    position: absolute;
    top: -8px;
    background-repeat: no-repeat;
    background-size: auto;
    height: 180px;
    width: 130px;
}

就这样。我想我正在做一些 Safari 不喜欢的事情。但问题是.. 什么？

我是D3的初学者,我试图用鼠标拖动一个矩形,但实际上我遇到了一些麻烦.

如果我在调用它之前定义var drag会得到这个错误:无法读取undefined的属性'drag'

如果我在调用它之后定义var drag,我会得到一个不同的错误:无法读取属性'apply'of undefined但实际上,在stackoverflow上搜索我读到了解决这个问题我需要在调用它之前定义var drag我是在一个循环.

您可以在下面看到我的代码.提前致谢.

$(document).ready(function() {
var width = 500;
var height = 500;
var fullAngle = 2 * Math.PI;
var arc2 = d3.arc()
            .innerRadius(195)
            .outerRadius(200)
            .startAngle(0.18)
            .endAngle(fullAngle / 1.02);

var svgContainer = d3.select("#container")
    .append("svg")
    .attr("width", width)
    .attr("height", height)
    .style("border", "1px solid");

var group1 = svgContainer.append("g");
var group2 = svgContainer.append("g");
group2.append("path")
    .attr("d", arc2())
    .attr("fill", "blue")

group1.attr("transform", "translate(" + 200 + "," + 200 + ")");
group2.attr("transform", "translate(" + 250 + "," + 250 + ")");

var …

嗨,大家好我有同样的问题:3.2 sdk平台安装问题."完成.没有安装任何东西"

但是所有类似的问题都已通过 - >右键单击/以管理员身份运行来解决.好吧,当我尝试这样做时,Windows会给我一个cmd窗口,上面写着:

"无法执行tools\android.bat:,错误2无法找到该文件"

和一个带有相同消息的弹出窗口

我怎么解决？

我已经在具有特定尺寸的 div 中使用 youtube apis 初始化了一个 youtube 视频。是否可以显示视频，因为它是设置为 div 背景大小封面的图像？我的意思是没有任何黑色空间。

在下面您可以找到实际结果和我使用的代码。

代码：

var player123;

if(jQuery('#player123')){
    bindVideo();
}



function bindVideo(){

    var playerHeight = "500px";
    if(jQuery(window).width() < 1023){
        playerHeight = "100%";
    }else{
        playerHeight = "400px";
    }
    jQuery(window).resize(function(){
        if(jQuery(window).width() < 1023){
            playerHeight = "100%";
        }else{
            playerHeight = "400px";
        }
    });
    player123 = new YT.Player('player123', {
        height: playerHeight,
        width: '100%',
        videoId: 'video-id-here',
        events: {
            'onReady': onPlayerReady(event),
            'onStateChange': onPlayerStateChange
        },
        playerVars:{
            rel:0,
            loop:1,
            showinfo:0,
            controls:0,
            disablekb:1
        }
    });
}

// 4. The API will call …