HarmonyOS 鸿蒙Next 申请ohos.permission.READ_WRITE_DOWNLOAD_DIRECTORY权限没有弹窗

let atManager: abilityAccessCtrl.AtManager = abilityAccessCtrl.createAtManager();
let state: boolean = false;
// requestPermissionsFromUser会判断权限的授权状态来决定是否唤起弹窗
atManager.requestPermissionsFromUser(context, ‘ohos.permission.READ_WRITE_DOWNLOAD_DIRECTORY’).then((data) => {
let grantStatus: Array<number> = data.authResults;
let length: number = grantStatus.length;
for (let i = 0; i < length; i++) {
if (grantStatus[i] == 0) {
state = true;
} else {
// 用户拒绝授权，提示用户必须授权才能访问当前页面的功能，并引导用户到系统设置中打开相应的权限 
state = false;
return;
}
}
}).catch((err: BusinessError) => {
state = false;
console.error(requestPermissionsFromUser failed, code is <span class="hljs-subst">${err.code}</span>, message is <span class="hljs-subst">${err.message}</span>);
})