PhoneGap实例
来源：互联网 发布：足球游戏源码 编辑：程序博客网 时间：2024/06/11 11:50
<!DOCTYPE HTML> <html> <head> <meta name="viewport" content="width=320; user-scalable=no" /> <meta http-equiv="Content-type" content="text/html; charset=utf-8"> <title>Minimal AppLaud App</title> <script type="text/javascript" charset="utf-8" src="phonegap-1.4.1.js"></script> <script type="text/javascript" charset="utf-8"> var fileSystem; //generic getById function getById(id) { return document.querySelector(id); } //generic content logger function logit(s) { getById("#content").innerHTML += s; } //generic error handler function onError(e) { getById("#content").innerHTML = "<h2>Error</h2>"+e.toString(); } function doDeleteFile(e) { fileSystem.root.getFile("test.txt", {create:true}, function(f) { f.remove(function() { logit("File removed<p/>"); }); }, onError); } function metadataFile(m) { logit("File was last modified "+m.modificationTime+"<p/>"); } function doMetadataFile(e) { fileSystem.root.getFile("test.txt", {create:true}, function(f) { f.getMetadata(metadataFile,onError); }, onError); } function readFile(f) { reader = new FileReader(); reader.onloadend = function(e) { console.log("go to end"); logit("<pre>" + e.target.result + "</pre><p/>"); } reader.readAsText(f); } function doReadFile(e) { fileSystem.root.getFile("test.txt", {create:true}, readFile, onError); } function appendFile(f) { f.createWriter(function(writerOb) { writerOb.onwrite=function() { logit("Done writing to file.<p/>"); } //go to the end of the file... writerOb.seek(writerOb.length); writerOb.write("Test at "+new Date().toString() + "\n"); }) } function doAppendFile(e) { fileSystem.root.getFile("test.txt", {create:true}, appendFile, onError); } function gotFiles(entries) { var s = ""; for(var i=0,len=entries.length; i<len; i++) { //entry objects include: isFile, isDirectory, name, fullPath s+= entries[i].fullPath; if (entries[i].isFile) { s += " [F]"; } else { s += " [D]"; } s += "<br/>"; } s+="<p/>"; logit(s); } function doDirectoryListing(e) { //get a directory reader from our FS var dirReader = fileSystem.root.createReader(); dirReader.readEntries(gotFiles,onError); } function onFSSuccess(fs) { fileSystem = fs; getById("#dirListingButton").addEventListener("touchstart",doDirectoryListing); getById("#addFileButton").addEventListener("touchstart",doAppendFile); getById("#readFileButton").addEventListener("touchstart",doReadFile); getById("#metadataFileButton").addEventListener("touchstart",doMetadataFile); getById("#deleteFileButton").addEventListener("touchstart",doDeleteFile); logit( "Got the file system: "+fileSystem.name +"<br/>" + "root entry name is "+fileSystem.root.name + "<p/>") doDirectoryListing(); } function onDeviceReady() { //request the persistent file system window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFSSuccess, onError); } function init() { document.addEventListener("deviceready", onDeviceReady, true); } </script> <style> button { width: 100%; padding: 5px; } </style> </head> <body onload="init();" id="stage" class="theme"> <button id="addFileButton">Create/Append to Test File</button> <button id="readFileButton">Read Test File</button> <button id="metadataFileButton">Get Test File Metadata</button> <button id="deleteFileButton">Delete Test File</button> <button id="dirListingButton">Show Directory Contents</button> <div id="content"></div> </body> </html>
