无法获取PhoneGaps FileWriter工作 [英] Can't get Phonegaps FileWriter to work
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问题描述
刚刚接触Phonegap，很难理解 FileWriter 功能。我试图让这个例子在iOS6上工作，但我坚持的错误消息
< script type =text / javascriptcharset =utf-8src =cordova-2.3.0.js>< / script&
< script type =text / javascriptcharset =utf-8>
var fileWriter;
function onNotesLoad（）{
window.requestFileSystem（LocalFileSystem.PERSISTENT，0，onFSComplete，fail）;
}
function onFSComplete（fileSystem）{
//加载notes.txt文件，如果它不存在则创建
fileSystem.root.getFile（notes.txt ，{create：true}，onFileEntryComplete，fail）;
}
function onFileEntryComplete（fileEntry）{
//设置fileWriter
fileEntry.createWriter（onFileWriterComplete，fail）;
}
function onFileWriterComplete（fileWriter）{
//将文件存储在
//全局变量中，因此我们有
//当用户按下save
fileWriter = fileWriter;
}
function saveNotes（）{
//确保fileWriter已设置
if（fileWriter！= null）{
//创建一个不完整的写函数
//将重定向用户
fileWriter.onwrite = function（evt）{
alert（Saved successfully）;
$ .mobile.changePage（index.html）;
};
var form = document.getElementsByTagName（'form'）[0] .elements;
var notes = form.notes.value;
//保存注释
fileWriter.write（notes）;
} else {
alert（尝试保存文件时出错）;
}
return false;
}
function fail（error）{
alert（error.code）;
}
< / script>
HTML：
< body>
< div data-role =pageid =notes-page>
< div data-role =headerdata-position =inline>
< a href =index.htmldata-icon =delete>取消< / a>
< h1>您的想法？< / h1>
< a onClick =return saveNotes（）href =＃
data-icon =checkdata-theme =b> Save< / a>
< / div>
< form action =index.htmlmethod =post>
< textarea name =notesrows =30cols =10>< / textarea>
< / form>
< / div>
< / body>
解决方案>
onwrite处理程序被称为进度事件。我相信你会想钩到onwriteend处理程序。
New to Phonegap and having a hard time understanding the FileWriter function. I am trying to get this example to work on iOS6 but I'm stuck with the error message
<script type="text/javascript" charset="utf-8" src="cordova-2.3.0.js"></script>
<script type="text/javascript" charset="utf-8">
var fileWriter;
function onNotesLoad() {
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFSComplete, fail);
}
function onFSComplete(fileSystem) {
// Load the notes.txt file, create it if it doesn't exist
fileSystem.root.getFile("notes.txt", {create: true}, onFileEntryComplete, fail);
}
function onFileEntryComplete(fileEntry) {
// set up the fileWriter
fileEntry.createWriter(onFileWriterComplete, fail);
}
function onFileWriterComplete(fileWriter) {
// store the fileWriter in a
// global variable so we have it
// when the user presses save
fileWriter = fileWriter;
}
function saveNotes() {
// make sure the fileWriter is set
if (fileWriter != null) {
// create an oncomplete write function
// that will redirect the user
fileWriter.onwrite = function(evt) {
alert("Saved successfully");
$.mobile.changePage("index.html");
};
var form = document.getElementsByTagName('form')[0].elements;
var notes = form.notes.value;
// save the notes
fileWriter.write(notes);
} else {
alert("There was an error trying to save the file");
}
return false;
}
function fail(error) {
alert(error.code);
}
</script>
HTML:
<body>
<div data-role="page" id="notes-page">
<div data-role="header" data-position="inline">
<a href="index.html" data-icon="delete">Cancel</a>
<h1>Your Thoughts?</h1>
<a onClick="return saveNotes()" href="#"
data-icon="check" data-theme="b">Save</a>
</div>
<form action="index.html" method="post">
<textarea name="notes" rows="30" cols="10"></textarea>
</form>
</div>
</body>
解决方案
The onwrite handler is called as a progress event. I believe you will want to hook to the onwriteend handler.
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