未验证 提交 91f7b492 编写于 作者: W Wangkai 提交者: Gitee

update zh-cn/application-dev/database/database-mdds-guidelines.md.

Signed-off-by: NWangkai <wangkai424@huawei.com>
......@@ -50,6 +50,7 @@
这个权限还需要在应用首次启动的时候弹窗获取用户授权,可以通过如下代码实现:
```js
// FA模型
import featureAbility from '@ohos.ability.featureAbility';
function grantPermission() {
......@@ -63,6 +64,47 @@
}
grantPermission();
// Stage模型
import AbilityStage from '@ohos.application.Ability';
import accessControl from '@ohos.abilityAccessCtrl';
import bundle from '@ohos.bundle';
let appId = "appId";
async function requestPermissions () {
let permissions: Array<string> = [
"ohos.permission.DISTRIBUTED_DATASYNC"
];
let needGrantPermission = false
let accessManger = accessControl.createAtManager()
console.info("[JSDemo]: app permission get bundle info")
let bundleInfo = bundle.getApplicationInfo(appId, 0, 100)
console.info(`[JSDemo]: app permission query permission ${bundleInfo.accessTokenId.toString()}`)
for (const permission of permissions) {
console.info(`[JSDemo]: app permission query grant status ${permission}`)
try {
let grantStatus = accessManger.verifyAccessToken(bundleInfo.accessTokenId, permission)
if (grantStatus === accessControl.GrantStatus.PERMISSION_DENIED) {
needGrantPermission = true
break;
}
} catch (err) {
console.error(`[JSDemo]: app permission query grant status error ${permission} ${JSON.stringify(err)}`)
needGrantPermission = true
break;
}
}
if (needGrantPermission) {
console.info("[JSDemo]: app permission needGrantPermission")
try {
globalThis.abilityContext.requestPermissionsFromUser(permissions)
} catch (err) {
console.error(`[JSDemo]: app permission ${JSON.stringify(err)}`)
}
} else {
console.info("[JSDemo]: app permission already granted")
}
}
```
3. 根据配置构造分布式数据库管理类实例。
......@@ -80,7 +122,7 @@
// Stage模型获取context
import AbilityStage from '@ohos.application.Ability'
let context = null;
class MainAbility extends Ability{
class MainAbility extends AbilityStage{
onWindowStageCreate(windowStage){
context = this.context;
}
......
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