[iOS]打开外部链接

打开外部链接

/// 打开外部链接
+ (void)openScheme:(NSString *)scheme {
    UIApplication *application = [UIApplication sharedApplication];
    NSURL *URL = [NSURL URLWithString:scheme];
    if (@available(iOS 10.0, *)) {
        [application openURL:URL options:@{} completionHandler:^(BOOL success) {
            NSLog(@"Open %@: %d",scheme,success);
        }];
    } else {
        // Fallback on earlier versions
        BOOL success = [application openURL:URL];
        NSLog(@"Open %@: %d",scheme,success);
    }
}

Safari打开链接

[self openScheme:@"https://www.baidu.com/"];

设置，打开定位权限设置

#import <Foundation/Foundation.h>
#import <CoreLocation/CoreLocation.h>
#import "GACityModel.h"

@interface GALocationModel : NSObject <CLLocationManagerDelegate>
@property (strong, nonatomic) CLLocationManager* locationManager;
@property (strong, nonatomic) NSString *dLongitude; // 经度
@property (strong, nonatomic) NSString *dLatitude;  // 纬度
@property (strong, nonatomic) NSString *dCityName;  // 城市名称
@property (strong, nonatomic) GACityModel *dCityModel; // 选择设置的城市

+ (id)sharedLocationModelMethod;

/// 设置城市
- (void)setSelectCityWithModel:(GACityModel *)tempCityModel;

/// 开始定位
- (void)startLocationAction;

/// 计算两个经纬度之间的距离
- (double)distanceBetweenOrderBy:(double)lat1 :(double)lng1 :(double)lat2 :(double)lng2;

@end

#import "GALocationModel.h"

static GALocationModel * sharedLocationModel = nil;

@implementation GALocationModel

+ (id)sharedLocationModelMethod {
    @synchronized (self){
        if (!sharedLocationModel) {
            sharedLocationModel = [[GALocationModel alloc] init];
            // 默认重庆主城区的经纬度
            sharedLocationModel.dLongitude = @"106.33";
            sharedLocationModel.dLatitude = @"29.35";
        }
        return sharedLocationModel;
    }
    return sharedLocationModel;
}

- (void)setSelectCityWithModel:(GACityModel *)tempCityModel {
    if (tempCityModel) {
        _dCityModel = tempCityModel;
    }
}

- (void)startLocationAction {
    if ([CLLocationManager locationServicesEnabled] &&
        ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorizedWhenInUse ||
         [CLLocationManager authorizationStatus] == kCLAuthorizationStatusNotDetermined ||
         [CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorized)) {
        // 定位功能可用
        if (!_locationManager) {
            _locationManager = [[CLLocationManager alloc] init];
            _locationManager.delegate = self;
            [_locationManager requestAlwaysAuthorization];
            [_locationManager requestWhenInUseAuthorization];
            _locationManager.desiredAccuracy = kCLLocationAccuracyBest;
            _locationManager.distanceFilter = 5.0;
        }
        [_locationManager startUpdatingLocation];
    } else if ([CLLocationManager authorizationStatus] ==kCLAuthorizationStatusDenied) {
        // 定位不能用
        UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"提示" message:@"请在设置中打开定位" preferredStyle:UIAlertControllerStyleAlert];
        UIAlertAction *ok = [UIAlertAction actionWithTitle:@"打开定位" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
            [GAPublicClass openScheme:UIApplicationOpenSettingsURLString];
        }];
        UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
        }];
        [alert addAction:cancel];
        [alert addAction:ok];
        UIViewController *viewC = [[[UIApplication sharedApplication] keyWindow] rootViewController];
        [viewC presentViewController:alert animated:YES completion:nil];
    }
}

#pragma mark - 定位成功

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations {
    [_locationManager stopUpdatingLocation];
    CLLocation *currentLocation = [locations lastObject];
    CLGeocoder *geoCoder = [[CLGeocoder alloc]init];
    // 当前的经纬度
    NSLog(@"当前的经纬度 %f,%f",currentLocation.coordinate.latitude,currentLocation.coordinate.longitude);
    _dLongitude = [NSString stringWithFormat:@"%.6f",currentLocation.coordinate.longitude];
    _dLatitude = [NSString stringWithFormat:@"%.6f",currentLocation.coordinate.latitude];
    // 地理反编码 可以根据坐标(经纬度)确定位置信息(街道 门牌等)
    [geoCoder reverseGeocodeLocation:currentLocation completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
        if (placemarks.count > 0) {
            CLPlacemark *placeMark = placemarks[0];
            self.dCityName = placeMark.locality;
            if (!self.dCityName) {
                self.dCityName = @"无法定位当前城市";
            }
            if (!self.dCityModel) {
                self.dCityModel = [GACityModel new];
                self.dCityModel.dRegionName = self.dCityName;
                NSNotification *tempNF = [[NSNotification alloc] initWithName:@"HomeLeftBarItemNF" object:nil userInfo:nil];
                [[NSNotificationCenter defaultCenter] postNotification:tempNF];
            }
        } else if (error == nil && placemarks.count) {
            NSLog(@"NO location and error return");
        } else if (error) {
            NSLog(@"loction error:%@",error);
        }
    }];
}

#pragma mark - 定位失败

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
    
}

- (double)distanceBetweenOrderBy:(double)lat1 :(double)lng1 :(double)lat2 :(double)lng2 {
    CLLocation *curLocation = [[CLLocation alloc] initWithLatitude:lat1 longitude:lng1];
    CLLocation *otherLocation = [[CLLocation alloc] initWithLatitude:lat2 longitude:lng2];
    double distance = [curLocation distanceFromLocation:otherLocation];
    return distance;
}

@end

#import <Foundation/Foundation.h>

@interface GACityModel : NSObject
@property (strong, nonatomic) NSString *dMark;
@property (strong, nonatomic) NSString *dRegionCode;
@property (strong, nonatomic) NSString *dRegionName;

- (id)initModelWithObject:(id)object;

@end