我已经看到了很多在这里对这个问题的帖子，但还是没能找到这个问题的一个完美的答案。
所以我有一个tableview中，每个细胞内部具有播放按钮。 当用户点击播放按钮，我一个添加UIWebView到该小区，并播放YouTube视频。
static NSString *youTubeVideoHTML = @"<html>\
<body style=\"margin:0;\">\
<iframe class=\"youtube-player\" type=\"text/html\" width=\"%0.0f\" height=\"%0.0f\" src=\"http://www.youtube.com/embed/%@\" frameborder=\"0\">\
</iframe>\
</body>\
</html>";
- (void)playVideoWithId:(NSString *)videoId {
NSString *html = [NSString stringWithFormat:youTubeVideoHTML, self.frame.size.width, self.frame.size.height, videoId];
[self loadHTMLString:html baseURL:nil];
}
问题：
此代码实际上并没有播放视频像我想，它只是启动YouTube播放器并与YouTube红色播放按钮显示它。 只有当用户点击红色按钮，视频开始播放。
因此，用户必须点击这两个按钮，直至视频开始 - 不是最好的用户体验？
就像我说的，我看到很多帖子这个问题，有些不是在所有的工作，和一些作品，但有一些问题，我的错误。
其中一个可行的解决方案，我发现是在这个帖子由@ilias，他展示了如何得到这从一个文件加载HTML（而不是字符串像我这样做）的工作，与此approche问题是，对于每一个视频我玩我需要：
加载htm文件 - >嵌入视频ID会 - >文件写入到磁盘 - >只是现在我可以播放视频。
奇怪的是，当你从一个文件中加载网页浏览请求此解决方案仅工作，如果我尝试加载从等于文件内容的字符串的要求，这是行不通的。
显然，问题是用零基URL，当我改成了resourceURL自动播放工作。
[self loadHTMLString:html baseURL:[[NSBundle mainBundle] resourceURL]];
自动播放YouTube视频的完整代码（再次验证码大多是基于这个帖子我只是改变它从一个字符串，而不是一个文件加载）：
static NSString *youTubeVideoHTML = @"<!DOCTYPE html><html><head><style>body{margin:0px 0px 0px 0px;}</style></head> <body> <div id=\"player\"></div> <script> var tag = document.createElement('script'); tag.src = \"http://www.youtube.com/player_api\"; var firstScriptTag = document.getElementsByTagName('script')[0]; firstScriptTag.parentNode.insertBefore(tag, firstScriptTag); var player; function onYouTubePlayerAPIReady() { player = new YT.Player('player', { width:'%0.0f', height:'%0.0f', videoId:'%@', events: { 'onReady': onPlayerReady, } }); } function onPlayerReady(event) { event.target.playVideo(); } </script> </body> </html>";
- (void)playVideoWithId:(NSString *)videoId {
NSString *html = [NSString stringWithFormat:youTubeVideoHTML, self.frame.size.width, self.frame.size.height, videoId];
[self loadHTMLString:html baseURL:[[NSBundle mainBundle] resourceURL]];
}
这里的关键是设置playsinline=1在您的iFrame播放器，并allowsInlineMediaPlayback = true和mediaPlaybackRequiresUserAction = false您UIWebView 。 这是我在斯威夫特实现：
// Set up your UIWebView
let webView = UIWebView(frame: self.view.frame) // or pass in your own custom frame rect
self.view.addSubview(webView)
self.view.bringSubviewToFront(webView)
// Set properties
webView.allowsInlineMediaPlayback = true
webView.mediaPlaybackRequiresUserAction = false
// get the ID of the video you want to play
let videoID = "zN-GGeNPQEg" // https://www.youtube.com/watch?v=zN-GGeNPQEg
// Set up your HTML. The key URL parameters here are playsinline=1 and autoplay=1
// Replace the height and width of the player here to match your UIWebView's frame rect
let embededHTML = "<html><body style='margin:0px;padding:0px;'><script type='text/javascript' src='http://www.youtube.com/iframe_api'></script><script type='text/javascript'>function onYouTubeIframeAPIReady(){ytplayer=new YT.Player('playerId',{events:{onReady:onPlayerReady}})}function onPlayerReady(a){a.target.playVideo();}</script><iframe id='playerId' type='text/html' width='\(self.view.frame.size.width)' height='\(self.view.frame.size.height)' src='http://www.youtube.com/embed/\(videoID)?enablejsapi=1&rel=0&playsinline=1&autoplay=1' frameborder='0'></body></html>"
// Load your webView with the HTML we just set up
webView.loadHTMLString(embededHTML, baseURL: NSBundle.mainBundle().bundleURL)
下面是完整的解决方案：
//
// S6ViewController.m
//
//
// Created by Ökkeş Emin BALÇİÇEK on 11/30/13.
// Copyright (c) 2013 Ökkeş Emin BALÇİÇEK. All rights reserved.
//
#import "S6ViewController.h"
@interface S6ViewController ()
@end
@implementation S6ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
[self playVideoWithId:@"sLVGweQU7rQ"];
}
- (void)playVideoWithId:(NSString *)videoId {
NSString *youTubeVideoHTML = @"<html><head><style>body{margin:0px 0px 0px 0px;}</style></head> <body> <div id=\"player\"></div> <script> var tag = document.createElement('script'); tag.src = 'http://www.youtube.com/player_api'; var firstScriptTag = document.getElementsByTagName('script')[0]; firstScriptTag.parentNode.insertBefore(tag, firstScriptTag); var player; function onYouTubePlayerAPIReady() { player = new YT.Player('player', { width:'768', height:'1024', videoId:'sLVGweQU7rQ', events: { 'onReady': onPlayerReady } }); } function onPlayerReady(event) { event.target.playVideo(); } </script> </body> </html>";
NSString *html = [NSString stringWithFormat:youTubeVideoHTML, videoId];
UIWebView *videoView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 768, 1024)];
videoView.backgroundColor = [UIColor clearColor];
videoView.opaque = NO;
//videoView.delegate = self;
[self.view addSubview:videoView];
videoView.mediaPlaybackRequiresUserAction = NO;
[videoView loadHTMLString:youTubeVideoHTML baseURL:[[NSBundle mainBundle] resourceURL]];
}
@end
- (void)playVideoWithId:(NSString *)videoId {
NSString *youTubeVideoHTML = @"<html><head><style>body{margin:0px 0px 0px 0px;}</style></head> <body> <div id=\"player\"></div> <script> var tag = document.createElement('script'); tag.src = 'http://www.youtube.com/player_api'; var firstScriptTag = document.getElementsByTagName('script')[0]; firstScriptTag.parentNode.insertBefore(tag, firstScriptTag); var player; function onYouTubePlayerAPIReady() { player = new YT.Player('player', { width:'768', height:'1024', videoId:'%@', events: { 'onReady': onPlayerReady } }); } function onPlayerReady(event) { event.target.playVideo(); } </script> </body> </html>";
NSString *html = [NSString stringWithFormat:youTubeVideoHTML, videoId];
UIWebView *videoView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 300)];
videoView.backgroundColor = [UIColor clearColor];
videoView.opaque = NO;
//videoView.delegate = self;
[self.view addSubview:videoView];
videoView.mediaPlaybackRequiresUserAction = NO;
[videoView loadHTMLString:html baseURL:[[NSBundle mainBundle] resourceURL]];
}
我做了一些修正，以上面的代码。
Use following code to play a youtube video in the UIWebView
Here we required "embed link" :
- Just open your youtube link in browser
- Right click on video
- Select option "Get embed code"
You'll get output like -
<iframe width="640" height="390" src="https://www.youtube.com/embed/xtNXZA4XMBY" frameborder="0" allowfullscreen></iframe>
copy the link in "src" field, this is your embed link
Now just put this embed link on the place of "YOU_TUBE LINK" in the following code:
NSString *htmlString = [NSString stringWithFormat:@"<html><head><meta name = \"viewport\" content = \"initial-scale = 1.0, user-scalable = yes, width = 320\"/></head><body style=\"background:#00;margin-top:0px;margin-left:0px\"><div><object width=\"320\" height=\"480\"><param name=\"movie\" value=\"YOUTUBE_LINK\"></param><param name=\"wmode\" value=\"transparent\"></param><embed src=\"YOUTUBE_LINK\"type=\"application/x-shockwave-flash\" wmode=\"transparent\" width=\"320\" height=\"480\"></embed></object></div></body></html>"];
[self.webView_youTube loadHTMLString:htmlString baseURL:nil];
