uni app 利用高德选择地址功能

 1.map.nvue

2. api.js   wgs84和gcj02 坐标转化

/**
 *  判断经纬度是否超出中国境内
 */
function isLocationOutOfChina(latitude, longitude) {
  if (longitude < 72.004 || longitude > 137.8347 || latitude < 0.8293 || latitude > 55.8271)
    return true;
  return false;
}


/**
 *  将WGS-84(国际标准)转为GCJ-02(火星坐标):
 */
function transformFromWGSToGCJ(latitude, longitude) {
  var lat = "";
  var lon = "";
  var ee = 0.00669342162296594323;
  var a = 6378245.0;
  var pi = 3.14159265358979324;

  if (isLocationOutOfChina(latitude, longitude)) {
    lat = latitude;
    lon = longitude;
  }
  else {
    var adjustLat = transformLatWithXY(longitude - 105.0, latitude - 35.0);
    var adjustLon = transformLonWithXY(longitude - 105.0, latitude - 35.0);
    var radLat = latitude / 180.0 * pi;
    var magic = Math.sin(radLat);
    magic = 1 - ee * magic * magic;
    var sqrtMagic = Math.sqrt(magic);
    adjustLat = (adjustLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
    adjustLon = (adjustLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);
    latitude = latitude + adjustLat;
    longitude = longitude + adjustLon;
  }
  return { latitude: latitude, longitude: longitude };

}

/**
 *  将GCJ-02(火星坐标)转为百度坐标:
 */
function transformFromGCJToBaidu(latitude, longitude) {  
  var pi = 3.14159265358979324 * 3000.0 / 180.0;

  var z = Math.sqrt(longitude * longitude + latitude * latitude) + 0.00002 * Math.sin(latitude * pi);
  var theta = Math.atan2(latitude, longitude) + 0.000003 * Math.cos(longitude * pi);
  var a_latitude = (z * Math.sin(theta) + 0.006);
  var a_longitude = (z * Math.cos(theta) + 0.0065);

  return { latitude: a_latitude, longitude: a_longitude };
}

/**
 *  将百度坐标转为GCJ-02(火星坐标):
 */
function transformFromBaiduToGCJ(latitude, longitude) {
  var xPi = 3.14159265358979323846264338327950288 * 3000.0 / 180.0;

  var x = longitude - 0.0065;
  var y = latitude - 0.006;
  var z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * xPi);
  var theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * xPi);
  var a_latitude = z * Math.sin(theta);
  var a_longitude = z * Math.cos(theta);

  return { latitude: a_latitude, longitude: a_longitude };
}

/**
 *  将GCJ-02(火星坐标)转为WGS-84:
 */
function transformFromGCJToWGS(latitude, longitude) {
  var threshold = 0.00001;

  // The boundary
  var minLat = latitude - 0.5;
  var maxLat = latitude + 0.5;
  var minLng = longitude - 0.5;
  var maxLng = longitude + 0.5;

  var delta = 1;
  var maxIteration = 30;

  while (true) {
    var leftBottom = transformFromWGSToGCJ(minLat, minLng);
    var rightBottom = transformFromWGSToGCJ(minLat, maxLng);
    var leftUp = transformFromWGSToGCJ(maxLat, minLng);
    var midPoint = transformFromWGSToGCJ((minLat + maxLat) / 2, (minLng + maxLng) / 2);
    delta = Math.abs(midPoint.latitude - latitude) + Math.abs(midPoint.longitude - longitude);

    if (maxIteration-- <= 0 || delta <= threshold) {
      return { latitude: (minLat + maxLat) / 2, longitude: (minLng + maxLng) / 2 };
    }

    if (isContains({ latitude: latitude, longitude: longitude }, leftBottom, midPoint)) {
      maxLat = (minLat + maxLat) / 2;
      maxLng = (minLng + maxLng) / 2;
    }
    else if (isContains({ latitude: latitude, longitude: longitude }, rightBottom, midPoint)) {
      maxLat = (minLat + maxLat) / 2;
      minLng = (minLng + maxLng) / 2;
    }
    else if (isContains({ latitude: latitude, longitude: longitude }, leftUp, midPoint)) {
      minLat = (minLat + maxLat) / 2;
      maxLng = (minLng + maxLng) / 2;
    }
    else {
      minLat = (minLat + maxLat) / 2;
      minLng = (minLng + maxLng) / 2;
    }
  }

}

function isContains(point, p1, p2) {
  return (point.latitude >= Math.min(p1.latitude, p2.latitude) && point.latitude <= Math.max(p1.latitude, p2.latitude)) && (point.longitude >= Math.min(p1.longitude, p2.longitude) && point.longitude <= Math.max(p1.longitude, p2.longitude));
}

function transformLatWithXY(x, y) {
  var pi = 3.14159265358979324;
  var lat = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.sqrt(Math.abs(x));
  lat += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
  lat += (20.0 * Math.sin(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0;
  lat += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0;
  return lat;
}

function transformLonWithXY(x, y) {
  var pi = 3.14159265358979324;
  var lon = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x));
  lon += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
  lon += (20.0 * Math.sin(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0;
  lon += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0 * pi)) * 2.0 / 3.0;
  return lon;
}



module.exports = {
  isLocationOutOfChina: isLocationOutOfChina,
  transformFromWGSToGCJ: transformFromWGSToGCJ,
  transformFromGCJToBaidu: transformFromGCJToBaidu,
  transformFromBaiduToGCJ: transformFromBaiduToGCJ,
  transformFromGCJToWGS: transformFromGCJToWGS
}

 3.permission

/// null = 未请求，1 = 已允许，0 = 拒绝|受限, 2 = 系统未开启

var isIOS

function album() {
    var result = 0;
    var PHPhotoLibrary = plus.ios.import("PHPhotoLibrary");
    var authStatus = PHPhotoLibrary.authorizationStatus();
    if (authStatus === 0) {
        result = null;
    } else if (authStatus == 3) {
        result = 1;
    } else {
        result = 0;
    }
    plus.ios.deleteObject(PHPhotoLibrary);
    return result;
}

function camera() {
    var result = 0;
    var AVCaptureDevice = plus.ios.import("AVCaptureDevice");
    var authStatus = AVCaptureDevice.authorizationStatusForMediaType('vide');
    if (authStatus === 0) {
        result = null;
    } else if (authStatus == 3) {
        result = 1;
    } else {
        result = 0;
    }
    plus.ios.deleteObject(AVCaptureDevice);
    return result;
}

function location() {
    var result = 0;
    var cllocationManger = plus.ios.import("CLLocationManager");
    var enable = cllocationManger.locationServicesEnabled();
    var status = cllocationManger.authorizationStatus();
    if (!enable) {
        result = 2;
    } else if (status === 0) {
        result = null;
    } else if (status === 3 || status === 4) {
        result = 1;
    } else {
        result = 0;
    }
    plus.ios.deleteObject(cllocationManger);
    return result;
}

function push() {
    var result = 0;
    var UIApplication = plus.ios.import("UIApplication");
    var app = UIApplication.sharedApplication();
    var enabledTypes = 0;
    if (app.currentUserNotificationSettings) {
        var settings = app.currentUserNotificationSettings();
        enabledTypes = settings.plusGetAttribute("types");
        if (enabledTypes == 0) {
            result = 0;
            console.log("推送权限没有开启");
        } else {
            result = 1;
            console.log("已经开启推送功能!")
        }
        plus.ios.deleteObject(settings);
    } else {
        enabledTypes = app.enabledRemoteNotificationTypes();
        if (enabledTypes == 0) {
            result = 3;
            console.log("推送权限没有开启!");
        } else {
            result = 4;
            console.log("已经开启推送功能!")
        }
    }
    plus.ios.deleteObject(app);
    plus.ios.deleteObject(UIApplication);
    return result;
}

function contact() {
    var result = 0;
    var CNContactStore = plus.ios.import("CNContactStore");
    var cnAuthStatus = CNContactStore.authorizationStatusForEntityType(0);
    if (cnAuthStatus === 0) {
        result = null;
    } else if (cnAuthStatus == 3) {
        result = 1;
    } else {
        result = 0;
    }
    plus.ios.deleteObject(CNContactStore);
    return result;
}

function record() {
    var result = null;
    var avaudiosession = plus.ios.import("AVAudioSession");
    var avaudio = avaudiosession.sharedInstance();
    var status = avaudio.recordPermission();
    console.log("permissionStatus:" + status);
    if (status === 1970168948) {
        result = null;
    } else if (status === 1735552628) {
        result = 1;
    } else {
        result = 0;
    }
    plus.ios.deleteObject(avaudiosession);
    return result;
}

function calendar() {
    var result = null;
    var EKEventStore = plus.ios.import("EKEventStore");
    var ekAuthStatus = EKEventStore.authorizationStatusForEntityType(0);
    if (ekAuthStatus == 3) {
        result = 1;
        console.log("日历权限已经开启");
    } else {
        console.log("日历权限没有开启");
    }
    plus.ios.deleteObject(EKEventStore);
    return result;
}

function memo() {
    var result = null;
    var EKEventStore = plus.ios.import("EKEventStore");
    var ekAuthStatus = EKEventStore.authorizationStatusForEntityType(1);
    if (ekAuthStatus == 3) {
        result = 1;
        console.log("备忘录权限已经开启");
    } else {
        console.log("备忘录权限没有开启");
    }
    plus.ios.deleteObject(EKEventStore);
    return result;
}


function requestIOS(permissionID) {
    return new Promise((resolve, reject) => {
        switch (permissionID) {
            case "push":
                resolve(push());
                break;
            case "location":
                resolve(location());
                break;
            case "record":
                resolve(record());
                break;
            case "camera":
                resolve(camera());
                break;
            case "album":
                resolve(album());
                break;
            case "contact":
                resolve(contact());
                break;
            case "calendar":
                resolve(calendar());
                break;
            case "memo":
                resolve(memo());
                break;
            default:
                resolve(0);
                break;
        }
    });
}

function requestAndroid(permissionID) {
    return new Promise((resolve, reject) => {
        plus.android.requestPermissions(
            [permissionID],
            function(resultObj) {
                var result = 0;
                for (var i = 0; i < resultObj.granted.length; i++) {
                    var grantedPermission = resultObj.granted[i];
                    console.log('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('拒绝本次申请的权限：' + deniedPresentPermission);
                    result = 0
                }
                for (var i = 0; i < resultObj.deniedAlways.length; i++) {
                    var deniedAlwaysPermission = resultObj.deniedAlways[i];
                    console.log('永久拒绝申请的权限：' + deniedAlwaysPermission);
                    result = -1
                }
                resolve(result);
            },
            function(error) {
                console.log('result error: ' + error.message)
                resolve({
                    code: error.code,
                    message: error.message
                });
            }
        );
    });
}

function gotoAppPermissionSetting() {
    if (permission.isIOS) {
        var UIApplication = plus.ios.import("UIApplication");
        var application2 = UIApplication.sharedApplication();
        var NSURL2 = plus.ios.import("NSURL");
        var setting2 = NSURL2.URLWithString("app-settings:");
        application2.openURL(setting2);
        plus.ios.deleteObject(setting2);
        plus.ios.deleteObject(NSURL2);
        plus.ios.deleteObject(application2);
    } else {
        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);
    }
}

const permission = {
    get isIOS(){
        return typeof isIOS === 'boolean' ? isIOS : (isIOS = uni.getSystemInfoSync().platform === 'ios')
    },
    requestIOS: requestIOS,
    requestAndroid: requestAndroid,
    gotoAppSetting: gotoAppPermissionSetting
}

export default permission