Nvue动态更改titleNView的值onNavigationBarButtonTap监听不生效问题

onNavigationBarButtonTap(e) {

        const index = e.index  
        if (index == 0) {  

            console.log("点击了")  

        }   
    },  

setStyle(index, text) {
console.log(index, text)
let pages = getCurrentPages();
let page = pages[pages.length - 1];
// // // 添加文字过长截取为3个字符，请根据自己业务需求更改
if (text.length > 3) {
text = text.substr(0, 3) + '...';
}
console.log(index, text)
let currentWebview = page.$getAppWebview();
currentWebview.setTitleNViewButtonStyle(0, {
text: text,
redDot: false
});

        },