api9
stage模型
arkts语言
//用到的文档
//https://developer.harmonyos.com/cn/docs/documentation/doc-guides-V3/arkts-page-custom-components-lifecycle-0000001524296665-V3
//https://developer.harmonyos.com/cn/docs/documentation/doc-guides-V3/accesstoken-guidelines-0000001493744016-V3#ZH-CN_TOPIC_0000001574088333__stage%E6%A8%A1%E5%9E%8B-1
//https://developer.harmonyos.com/cn/docs/documentation/doc-guides-V3/permission-list-0000001544464017-V3
import geoLocationManager from '@ohos.geoLocationManager'
import abilityAccessCtrl, { Permissions } from '@ohos.abilityAccessCtrl';
import common from '@ohos.app.ability.common';
//权限列表
const permissions: Array<Permissions> = ['ohos.permission.APPROXIMATELY_LOCATION','ohos.permission.LOCATION'];
@Component
@Entry
struct Dingwei{
// 检测权限是否已经授权,如果未授权就弹出授权弹框
reqPermissionsFromUser(permissions: Array<Permissions>): void {
let context = getContext(this) as common.UIAbilityContext;
let 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
} 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) => {
console.error(`requestPermissionsFromUser failed, code is ${err.code}, message is ${err.message}`);
})
}
//组件即将出现时回调该接口，具体时机为在创建自定义组件的新实例后，在执行其build()函数之前执行。
aboutToAppear(){
this.reqPermissionsFromUser(permissions)
}
build(){
Button(){
Text("获取定位")
.fontColor(Color.White)
.padding(30)
.fontSize(30)
.width("100%")
.textAlign(TextAlign.Center)
}.type(ButtonType.Normal)
.onClick(()=>{
//获取定位信息的函数
let requestInfo = {'priority': 0x203, 'scenario': 0x300,'maxAccuracy': 0};
try {
geoLocationManager.getCurrentLocation(requestInfo).then((result) => {
console.log('current location: ' + JSON.stringify(result));
})
.catch((error) => {
console.log('promise, getCurrentLocation: error=' + JSON.stringify(error));
});
} catch (err) {
console.error("errCode:" + err.code + ",errMessage:" + err.message);
}
})
}
}
