我正在尝试下载视频，然后使用 apache Cordova 3.4.0 播放它，但我不知道是否可以使用视频标签。有一些插件可用于使用视频标签，例如
Html5Video但它需要视频文件存在于应用程序文件夹中。还有其他插件使用其他播放器并使用文件路径加载文件，但由于文件下载现在使用 Html5 url，并且 fullPath 给了我文件系统的真实路径，所以真的不可能知道文件保存在哪里，或提供给视频播放器的路径。有没有办法访问应用程序文件夹位置并将视频以 cordova 可以找到并播放的方式放置？
这是我目前所拥有的，但我不知道如何找到视频。
<!DOCTYPE html>
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<html>
<head>
<meta charset="utf-8" />
<meta name="format-detection" content="telephone=no" />
<!-- WARNING: for iOS 7, remove the width=device-width and height=device-height attributes. See https://issues.apache.org/jira/browse/CB-4323 -->
<meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, height=device-height, target-densitydpi=device-dpi" />
<link rel="stylesheet" type="text/css" href="css/index.css" />
<title>Hello World</title>
</head>
<body>
<div class="app">
<h1>Apache Cordova</h1>
<div id="deviceready" class="blink">
<p class="event listening">Connecting to Device</p>
<p class="event received">Device is Ready</p>
</div>
<div id="video_container">
Loading Video...
</div>
</div>
<script type="text/javascript" src="cordova.js"></script>
<script type="text/javascript" src="js/index.js"></script>
<script type="text/javascript">
app.initialize();
document.addEventListener("deviceready", onDeviceReady, false);
// device APIs are available
//
function onDeviceReady() {
console.log('Requesting file system');
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, gotFS, fail);
}
function gotFS(fileSystem) {
fileSystem.root.getDirectory("vids", {create: true}, gotDir);
}
function gotDir(dirEntry) {
dirEntry.getFile("some_video.mp4", {create: true, exclusive: false}, gotFile);
}
function gotFile(fileEntry) {
var localPath = fileEntry.fullPath;
var localUrl = fileEntry.toURL();
console.log('Loaded local path: ' + localPath);
console.log('Loaded local url: ' + localUrl);
var fileTransfer = new FileTransfer();
var uri = encodeURI('http//site/with/video.mp4');
console.log('Downloading ' + uri + ' to ' + localPath);
fileTransfer.download(
uri,
localUrl,
function(entry) {
console.log('download complete (path): ' + entry.fullPath); // Returns '/vids/some_video.mp4'
console.log('download complete (url): ' + entry.toURL()); // Returns 'cdvfile://localhost/persistent/vids/some_video.mp4'
document.getElementById('video_container').innerHTML =
'Downloaded Video path: ' + entry.fullPath + '<br />'
+ 'Downloaded Video url: ' + entry.toURL() + '<br />'
+ '<video width="100%" height="300" controls>'
+ '<source src="' + entry.toURL() + '" type="video/mp4">'
+ '</video>';
console.log('Wrote video player');
},
function(error) {
console.log('download error source ' + error.source);
console.log('download error target ' + error.target);
}
);
}
function fail(error) {
console.log('Error creating file [' + error.name + ']: ' + error.message);
}
</script>
</body>
</html>
文件正在正确下载，但下载后如何获得完整路径？或者将其移动到我的 cordova 文件夹以将 url 放入视频标签中？
!!!我找到了解决方案 !!!!
我按照说明在开发分支上使用了它 here .
最佳答案
如您所见(几乎是在提交代码之后:))File 的 dev 分支向 FileEntry 对象添加了一个方法 .toNativeURL()。您可以使用它来获取适合标记源的 URL。
最简单的代码是这样的:
requestFileSystem(TEMPORARY, 0, function(fileSystem) {
var ft = new FileTransfer();
ft.download(uri, fileSystem.root.toURL() + "/" + filename, function(entry) {
document.getElementById('video_container').innerHTML =
'Downloaded Video path: ' + entry.fullPath + '<br />'
+ 'Downloaded Video url: ' + entry.toURL() + '<br />'
+ '<video width="100%" height="300" controls>'
+ '<source src="' + entry.toNativeURL() + '" type="video/mp4">'
+ '</video>';
});
});
更新:截至 3 月 4 日，已发布的文件插件版本 (1.0.1) 包含此功能。不再需要 Dev 分支。
关于android - 视频标签本地文件下载 Cordova Android，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/22083023/