ZTE手机的如下代码被挡住了

//退出操作******************  
document.getElementById('exit').addEventListener('tap', function() {  
var btnArray = [{title: "注销当前账号"}, {title: "直接关闭应用"}];  
plus.nativeUI.actionSheet({cancel: "取消",buttons: btnArray}, function(event) {  
    var index = event.index;  
    switch (index) {  
        case 1:  
           store.delete('uid');  
           openWVs("login.html","login.html","index.html");  
           break;  
        case 2:  
           plus.runtime.quit();  
           break;  
   }  
});  
}, false);

点击按钮后，看不到上面预设的三个按钮选项。