如何使用iscroll和Android WebView将焦点字段引入视图
Niz*_*zzy 13 javascript android webview iscroll
当我将焦点放在iScroll视图底部的表单域时,它不会向上/向上移动/将焦点字段带到softkeyboad上方.任何的想法？谢谢!
这是Android项目. https://dl.dropboxusercontent.com/u/75818136/webkitdemo.zip
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0, minimum-scale=1.0, maximum-scale=1.0">
<title>iScroll demo: simple</title>
<style type="text/css" media="all">
body,ul,li {
padding:0;
margin:0;
border:0;
}
body {
font-size:12px;
-webkit-user-select:none;
-webkit-text-size-adjust:none;
font-family:helvetica;
}
#header {
position:absolute; z-index:2;
top:0; left:0;
width:100%;
height:45px;
line-height:45px;
background-color:#d51875;
background-image:-webkit-gradient(linear, 0 0, 0 100%, color-stop(0, #fe96c9), color-stop(0.05, #d51875), color-stop(1, #7b0a2e));
background-image:-moz-linear-gradient(top, #fe96c9, #d51875 5%, #7b0a2e);
background-image:-o-linear-gradient(top, #fe96c9, #d51875 5%, #7b0a2e);
padding:0;
color:#eee;
font-size:20px;
text-align:center;
}
#header a {
color:#f3f3f3;
text-decoration:none;
font-weight:bold;
text-shadow:0 -1px 0 rgba(0,0,0,0.5);
}
#footer {
position:absolute; z-index:2;
bottom:0; left:0;
width:100%;
height:48px;
background-color:#222;
background-image:-webkit-gradient(linear, 0 0, 0 100%, color-stop(0, #999), color-stop(0.02, #666), color-stop(1, #222));
background-image:-moz-linear-gradient(top, #999, #666 2%, #222);
background-image:-o-linear-gradient(top, #999, #666 2%, #222);
padding:0;
border-top:1px solid #444;
}
#wrapper {
position:absolute; z-index:1;
top:45px; bottom:48px; left:0;
width:100%;
background:#aaa;
overflow:auto;
}
#scroller {
position:absolute; z-index:1;
/* -webkit-touch-callout:none;*/
-webkit-tap-highlight-color:rgba(0,0,0,0);
width:100%;
padding:0;
}
#scroller ul {
list-style:none;
padding:0;
margin:0;
width:100%;
text-align:left;
}
#scroller li {
padding:0 10px;
height:40px;
line-height:40px;
border-bottom:1px solid #ccc;
border-top:1px solid #fff;
background-color:#fafafa;
font-size:14px;
}
</style>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="iscroll.js"></script>
</head>
<body>
<div id="header"><a href="http://cubiq.org/iscroll">iScroll</a></div>
<div id="wrapper">
<div id="scroller">
<ul id="thelist">
<li>Pretty row 1</li>
<li>Pretty row 2</li>
<li>Pretty row 3</li>
<li>Pretty row 4</li>
<li>Pretty row 5</li>
<li>Pretty row 6</li>
<li>Pretty row 7</li>
<li>Pretty row 8</li>
<li>Pretty row 9</li>
<li>Pretty row 10</li>
<li>Pretty row 11</li>
<li>Pretty row 12</li>
<li>Pretty row 13</li>
<li>Pretty row 14</li>
<li>Pretty row 15</li>
<li>Pretty row 16</li>
<li>Pretty row 17</li>
<li>Pretty row 18</li>
<li>Pretty row 19</li>
<li>Pretty row 20</li>
<li>Pretty row 21</li>
<li>Pretty row 22</li>
<li>Pretty row 23</li>
<li>Pretty row 24</li>
<li>Pretty row 25</li>
<li>Pretty row 26</li>
<li>Pretty row 27</li>
<li>Pretty row 28</li>
<li>Pretty row 29</li>
<li>Pretty row 30</li>
<li>Pretty row 31</li>
<li>Pretty row 32</li>
<li>Pretty row 33</li>
<li>Pretty row 34</li>
<li>Pretty row 35</li>
<li>Pretty row 36</li>
<li>Pretty row 37</li>
<li>Pretty row 38</li>
<li>Pretty row 39</li>
<li><form><input type="text" value="hey" spellcheck="false"></form></li>
</ul>
</div>
</div>
<div id="footer"></div>
<script>
var myScroll;
function loaded() {
myScroll = new iScroll('wrapper');
}
document.addEventListener('touchmove', function (e) { e.preventDefault(); }, false);
document.addEventListener('DOMContentLoaded', function () { setTimeout(loaded, 200); }, false);
window.addEventListener("resize", function() {
console.error("=------======-=-=-==");
}, false);
</script>
</body>
</html>
我终于找到了我的问题的解决方案.顺便说一下,这个解决方案将出现在我的书中,该书将很快出版.我只是想与开发者社区分享这个.
首先,iscroll应该为我们处理这个问题,但不知何故它不会.
另外,我认为Android API中存在一个错误.当我使用全屏模式(在清单或编程中)时,"调整大小"事件不会在WebView中被触发.不知道为什么.我已经向Android团队报告了这个错误.如果你知道为什么会这样,请在这里告诉我们.谢谢.
android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
// or
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
这是解决方案:
我删除了全屏模式.相反,我使用了res/values/style.xml, requestWindowFeature(android.view.Window.FEATURE_NO_TITLE);并android:theme="@style/Theme"在应用程序中删除应用程序本机标题.此方案在定向发生时也有效.
然后,使用"焦点"事件,我捕获了哪个元素具有焦点.
var $elm;
$('input, textarea').bind('focus', function(e) {
console.error("onFocus");
$elm = $(this);
});
然后,使用"resize"事件,我刷新了iscroll对象,然后滚动到$ elm.
$(window).bind('resize', function() {
console.error("onResize");
if (myScroll !== undefined) {
setTimeout(function() {
myScroll.refresh();
myScroll.scrollToElement($elm[0], 200);
}, 100);
}
});
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