/**
 * 获取导航栏高度
 */
export const getNavBarHeight = () =>{
    return new Promise((resolve, reject) => {
         // 在 App.vue  中初始化
         uni.getSystemInfo({
            success: (res) => {
            const statusBarHeight = res.statusBarHeight
            const navBarHeight =
                res.platform === 'android' ? 48 : 44 + res.statusBarHeight;
                resolve( { statusBarHeight, navBarHeight })
            },
            fail: (err) => {
                reject(err)
            }
        })
    })
}