我有一个<?php
include 'config.php';
?>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script
src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js">
</script>
<script type="text/javascript" src="https://www.youtube.com/player_api">
</script>
</head>
<body>
<center style="margin-left:0px">
<label style="font-size:2em;color:tomato"><b>Today's Video</b></label>
<table>
<tr>
<td>
<?php
$sql="SELECT `video_path` FROM `videos` WHERE `category`='Films'
and postedby='Admin' and id in (select max(id) as id FROM `videos`
WHERE `category`='Films')";
$res=mysqli_query($db,$sql);
if($row=mysqli_fetch_array($res))
{
$vid=$row['video_path']."?
rel=0&wmode=Opaque&enablejsapi=1;showinfo=1;controls=1";
echo '<iframe src='.$vid.' class="yt_players" height="150" width="150"
id="player" frameborder="0" allowfullscreen="allowfullscreen" ></iframe>
<br/>';
}
?>
</td>
<td>
<?php
$sql="SELECT `video_path` FROM `videos` WHERE
`category`='Political' and postedby='Admin' and id in (select max(id) as
id FROM `videos` WHERE `category`='Political')";
$res=mysqli_query($db,$sql);
if($row=mysqli_fetch_array($res))
{
$vid=$row['video_path']."?
rel=0&wmode=Opaque&enablejsapi=1;showinfo=1;controls=1";
echo '<iframe src='.$vid.' class="yt_players" height="150" width="150"
id="player1" frameborder="0" allowfullscreen="allowfullscreen" >
</iframe><br/>';
}
?>
</td>
</tr>
<tr><td><br/></td><td><br/></td></tr>
<tr>
<td>
<?php
$sql="SELECT `video_path` FROM `videos` WHERE
`category`='Shopping' and postedby='Admin' and id in (select max(id) as
id FROM `videos` WHERE `category`='Shopping')";
$res=mysqli_query($db,$sql);
if($row=mysqli_fetch_array($res))
{
$vid=$row['video_path']."?
rel=0&wmode=Opaque&enablejsapi=1;showinfo=1;controls=1";
echo '<iframe src='.$vid.' height="150" class="yt_players" width="150"
id="player2" frameborder="0" allowfullscreen="allowfullscreen" >
</iframe><br/>';
}
?>
</td>
<td>
<?php
$sql="SELECT `video_path` FROM `videos` WHERE `category`='Services' and
postedby='Admin' and id in (select max(id) as id FROM `lookon_videos`
WHERE `category`='Services')";
$res=mysqli_query($db,$sql);
if($row=mysqli_fetch_array($res))
{
$vid=$row['video_path']."?
rel=0&wmode=Opaque&enablejsapi=1;showinfo=1;controls=1";
echo '<iframe src='.$vid.' class="yt_players" height="150" width="150"
id="player3" frameborder="0" allowfullscreen="allowfullscreen" ></iframe>
<br/>';
}
?>
</td>
</tr>
</table><br/>
<script type="text/javascript">
var players = new Array();
function onYouTubeIframeAPIReady() {
var temp = $("iframe.yt_players");
for (var i = 0; i < temp.length; i++) {
var t = new YT.Player($(temp[i]).attr('id'), {
events: {
'onStateChange': onPlayerStateChange
}
});
players.push(t);
}
}
onYouTubeIframeAPIReady();
function onPlayerStateChange(event) {
if (event.data == YT.PlayerState.PLAYING) {
var temp = event.target.a.src;
// var tempPlayers = $("iframe.yt_players");
for (var i = 0; i < players.length; i++) {
if (players[i].a.src != temp)
players[i].stopVideo();
}
}
}
</script>
</center>
</body>
</html>
，我需要知道它何时滚动，所以我将其滚动视图的委托绑定到我的控制器，以便使用WKWebView委托方法：
UIScrollView它适用于几乎所有网页，但当用户进行谷歌搜索时，选择一个AMP页面，然后向上或向下滚动，我无法检测到滚动。
有没有办法知道AMP页面是否滚动？
答案 0 :(得分：0)
我希望这有效（它适用于我），存储lastContentOffset的Y位置并将其与当前进行比较。
private var lastContentOffset: CGFloat = 0
func scrollViewDidScroll(_ scrollView: UIScrollView) {
if (self.lastContentOffset > scrollView.contentOffset.y) {
print("move up")
}
else if (self.lastContentOffset < scrollView.contentOffset.y) {
print("move down")
}
self.lastContentOffset = scrollView.contentOffset.y
}
答案 1 :(得分：0)
class ViewController: WKNavigationDelegate, UIScrollViewDelegate
var webView: WKWebView!
override func loadView() {
super.loadView()
webView = WKWebView()
webView.navigationDelegate = self
webView.scrollView.delegate = self
view = webView
}
func scrollViewDidScroll(_ scrollView: UIScrollView) {
print(scrollView.contentOffset.y)
}