在使用uniapp获取定位的时候 uni.getLocation() 第一次打开手机的时候 会弹出 授权界面，但是有时候点错就不会再次弹出来了。今天做了个整理

创建 device.js文件

let system = uni.getSystemInfoSync(); // 获取系统信息
/**检查是否打开GPS功能（android）**/
export const checkOpenGPSServiceByAndroid = () => {
        if (system.platform === 'android') { // 判断平台
			openGps()
        }else  if (system.platform == "ios") {
        //苹果打开对应的通知栏
        uni.showModal({
            title: "定位权限开启提醒",
            content: "您还没有开启定位权限，无法定位，请前往设置！",
            confirmText: "去设置",
            success: function(res) {
                if (res.confirm) {
                    var app = plus.ios.invoke("UIApplication", "sharedApplication");
                    var setting = plus.ios.invoke("NSURL", "URLWithString:", "app-settings:");
                    plus.ios.invoke(app, "openURL:", setting);
                    plus.ios.deleteObject(setting);
                    plus.ios.deleteObject(app);
                }
            }
        });
		}
    }
    /**
     * 定位权限及弹出权限弹框 监听用户点击按钮
     * **/
let num = 0;
export const openGps = () => {
    plus.android.requestPermissions(
        ['android.permission.ACCESS_FINE_LOCATION'],
        function(resultObj) {
            console.log('resultObj---', resultObj);
		
            var result = 0;
            for (var i = 0; i < resultObj.granted.length; i++) {
                var grantedPermission = resultObj.granted[i];
                // console.log(6, '已获取的权限：' + grantedPermission);
                result = 1
            }
            for (var i = 0; i < resultObj.deniedPresent.length; i++) {
                var deniedPresentPermission = resultObj.deniedPresent[i];
                // console.log(5, '拒绝本次申请的权限：' + deniedPresentPermission);
                num += 1
                result = 0
            }
            for (var i = 0; i < resultObj.deniedAlways.length; i++) {
                 var deniedAlwaysPermission = resultObj.deniedAlways[i];
                 // console.log(4, '永久拒绝申请的权限：' + deniedAlwaysPermission);
                 num += 1
                 result = -1
             }
            // 若所需权限被拒绝,则打开APP设置界面,可以在APP设置界面打开相应权限
            if (result != 1) {
                    uni.showToast({
                        title: "请到系统设置打开定位服务功能！",
                        icon: "none",
                        duration: 1000
                    })
                    setTimeout(() => {
                        var Intent = plus.android.importClass("android.content.Intent")
                        var Settings = plus.android.importClass("android.provider.Settings")
                        var Uri = plus.android.importClass("android.net.Uri")
                        var mainActivity = plus.android.runtimeMainActivity()
                        var intent = new Intent()
                        intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
                        var uri = Uri.fromParts("package", mainActivity.getPackageName(), null)
                        intent.setData(uri)
                        mainActivity.startActivity(intent)
                    }, 1200)
             
            }else {
              //因为安卓手机  手机授权之后还需要打开定位服务功能所有当手机授权之后 调用下面的方法
				var context = plus.android.importClass("android.content.Context")
				var locationManager = plus.android.importClass("android.location.LocationManager")
				var main = plus.android.runtimeMainActivity()
				var mainSvr = main.getSystemService(context.LOCATION_SERVICE)
				if (!mainSvr.isProviderEnabled(locationManager.GPS_PROVIDER)) {
					uni.showModal({
						title: '提示',
						content: '请打开定位服务功能',
						success(res) {
							if (res.confirm) {
								if (!mainSvr.isProviderEnabled(locationManager.GPS_PROVIDER)) {
									var Intent = plus.android.importClass('android.content.Intent');
									var Settings = plus.android.importClass('android.provider.Settings')
									var intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS)
									main.startActivity(intent) // 打开系统设置GPS服务页面
									
								} else {
									
								}
							}
						}
					});
					
					return
				}
			}
        },
        function(error) {
            console.log('申请权限错误：' + error.code + " = " + error.message);
            resolve({
                code: error.code,
                message: error.message
            });
        }
    );
}

调用

import {checkOpenGPSServiceByAndroid } from '@/utils/device.js'

getGPS(){
        uni.getLocation({
		type: 'wgs84',
		geocode:true,//设置该参数为true可直接获取经纬度及城市信息
		success: function (res) {
			this_.latitude = res.latitude
			this_.longitude = res.longitude
		},
		fail: function (ress) {
                //失败调用
			checkOpenGPSServiceByAndroid()
		}
	})		
}

转载：https://blog.csdn.net/weixin_42220533/article/details/128967939