【东哥抛砖】应用资源升级及显示下载进度功能

分类：HTML5+

下载进度资源升级

var wgtWaiting = null;  

function downloadWgt() {  
    wgtWaiting = plus.nativeUI.showWaiting("开始下载");  
    var wgtUrl = "http://192.168.51.103/release/download/wgt/v1.0.11.wgt";  
    var wgtOption = { filename: "_doc/update/", retry: 1 };  
    var task = plus.downloader.createDownload(wgtUrl, wgtOption, function (download, status) {  
        if (status == 200) {  
            wgtWaiting.setTitle("开始安装");  
            installWgt(download.filename);  
        } else {  
            mui.alert("应用升级失败！");  
            wgtWaiting.close();  
        }  
    });  
    task.addEventListener("statechanged", function (download, status) {  
        switch (download.state) {  
            case 2:  
                wgtWaiting.setTitle("已连接到服务器");  
                break;  
            case 3:  
                var percent = download.downloadedSize / download.totalSize * 100;  
                wgtWaiting.setTitle("已下载 " + parseInt(percent) + "%");  
                break;  
            case 4:  
                wgtWaiting.setTitle("下载完成");  
                break;  
        }  
    });  
    task.start();  
};  

function installWgt(wgtpath) {  
    plus.runtime.install(wgtpath, {}, function (wgtinfo) {  
        wgtWaiting.close();  
        mui.alert("更新完成，须重启应用！", function () {  
            plus.runtime.restart();  
        });  
    }, function (error) {  
        wgtWaiting.close();  
        mui.alert("应用更新失败！\n" + error.message);  
    });  
};

2015-11-26 16:59 1 条评论负责人:无分享