微信小程序使用WEBVIEW不占全屏显示

微信小程序中使用WEBVIEW组件，如果需要显示全屏内容，需要在小程序的wxml文件中添加``标签。以下是一个简单的示例：

1. 在项目的`app.json`文件中，添加`"web-view": true`配置项：

```json

{

"pages": [

"pages/index/index",

"pages/detail/detail"

],

"window": {

"backgroundTextStyle": "light",

"navigationBarBackgroundColor": "#fff",

"navigationBarTitleText": "微信小程序",

"navigationBarTextStyle": "black"

},

"tabBar": {

"list": [

{

"pagePath": "pages/index/index",

"text": "首页",

"iconPath": "images/home.png",

"selectedIconPath": "images/home-active.png"

},

{

"pagePath": "pages/detail/detail",

"text": "详情页",

"iconPath": "images/detail.png",

"selectedIconPath": "images/detail-active.png"

}

]

},

"web-view": {

"style": "fullscreen",

"backgroundColor": "#fff",

"backgroundAttachment": "scroll",

"backgroundPosition": "center",

"backgroundRepeat": "no-repeat",

"backgroundSize": "cover",

"width": "100%",

"height": "100%",

"frame": "fullscreen",

"skin": "light",

"lazy-load": false,

"show-navigator-when-loading": true,

"onload": (res) => {

if (res.customRequestData.isFullscreen) {

this.setData({

isFullscreen: res.customRequestData.isFullscreen

});

} else {

this.setData({

isFullscreen: false

});

}

}

}

}

```

2. 在`app.js`文件中，初始化页面时设置`isFullscreen`属性为`false`，以便在页面加载时不显示全屏效果：

```javascript

App({

onLaunch: function () {

// ...

this.setData({

isFullscreen: false

});

},

// ...

});

```

3. 在需要显示全屏内容的页面中，监听`isFullscreen`属性的变化，根据其值来显示或隐藏全屏内容：

```html

```

这样，当页面加载时，`isFullscreen`属性被设置为`false`，页面不会显示全屏效果。当用户点击页面中的按钮或其他元素时，`onShow`、`onHide`和`onUnload`方法会被调用，根据它们的返回值更新`isFullscreen`属性的值，从而控制页面是否显示全屏效果。