onMessage (event) {
let pages = getCurrentPages()
let page = pages[pages.length - 1];
let currentPages = page.$getAppWebview()
let children = currentPages.children()
// uni.navigateBack()
if (children.length === 0) {
uni.navigateBack()
} else {
children[0].close()
setTimeout(() => {
uni.navigateBack()
}, 80)
}
console.log('web-view的---ai----：', event)
return true;
}