下面是报错信息和权限申请的信息
struct Index {const permissions: Array<Permissions> = ['ohos.permission.GET_INSTALLED_BUNDLE_LIST'];
function reqPermissionsFromUser(permissions: Array<Permissions>, context: common.UIAbilityContext): void {
let appFlags :number = bundleManager.ApplicationFlag.GET_APPLICATION_INFO_DEFAULT;
let atManager: abilityAccessCtrl.AtManager = abilityAccessCtrl.createAtManager();
// requestPermissionsFromUser会判断权限的授权状态来决定是否唤起弹窗
atManager.requestPermissionsFromUser(context, permissions).then((data) => {
let grantStatus: Array<number> = data.authResults;
let length: number = grantStatus.length;
for (let i = 0; i < length; i++) {
if (grantStatus[i] === 0) {
// 用户授权，可以继续访问目标操作
console.info("data:" + JSON.stringify(data));
console.info("data permissions:" + data.permissions);
console.info("data authResults:" + data.authResults);
bundleManager.getAllApplicationInfo(appFlags, (err, data) => {
if (err) {
hilog.error(0x0000, 'testTag', 'getAllApplicationInfo failed: %{public}s', err.message);
} else {
hilog.info(0x0000, 'testTag', 'getAllApplicationInfo successfully: %{public}s', JSON.stringify(data));
}
});
} 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
return;
}
}
// 授权成功
}).catch((err: BusinessError) => {
console.error(`Failed to request permissions from user. Code is ${err.code}, message is ${err.message}`);
})
}
@Entry
@Component
struct Index {
aboutToAppear() {
const context: common.UIAbilityContext = getContext(this) as common.UIAbilityContext;
reqPermissionsFromUser(permissions, context);
}
...
}
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