显示pdf

//获取地址   
mui('#openFile')[0].addEventListener('tap',function(){
	openFile("http://192.168.1.98/test.doc");   
});       
//文件下载及打开第三方软件预览
function openFile(url){ 
    var wait = plus.nativeUI.showWaiting("正在打开文件...");    
    var dtask = plus.downloader.createDownload(url, {method: "GET"}, function(d, status) {
        if (status == 200) {        
            plus.runtime.openFile(d.filename, {}, function(e){
                wait.close();
                mui.toast('无法打开文件！');
            }); 
            wait.close();  
        } else {
            wait.close();
            mui.toast('打开文件失败！'); 
        }
    });
    dtask.start();     
}