蓝懿 iOS 技术交流和心得分享 12.23
位置编解码
#import "ViewController.h"
#import
@interface ViewController ()
@property (nonatomic, strong) CLGeocoder *geocoder;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.geocoder = [[CLGeocoder alloc]init];
// [self geoCodeWithCityName:@"天津"];
//输入请维度
[self reverseGeocodeWithLatitude:39 andLongtitude:116];
}
- (void)geoCodeWithCityName:(NSString *)name
{
// 开始编码
[self.geocoder geocodeAddressString:namecompletionHandler:^(NSArray *placemarks, NSError *error) {
if (error || placemarks.count == 0) {
NSLog(@"找不到位置");
} else { // 编码成功（找到了具体的位置信息）
// 输出查询到的所有地标信息
for (CLPlacemark *placemark in placemarks) {
NSLog(@"name=%@ locality=%@ country=%@ postalCode=%@", placemark.name, placemark.locality, placemark.country, placemark.postalCode);
}
// 显示最前面的地标信息
CLPlacemark *firstPlacemark = [placemarks firstObject];
CLLocationDegrees latitude = firstPlacemark.location.coordinate.latitude;
CLLocationDegrees longitude = firstPlacemark.location.coordinate.longitude;
NSLog(@"fistPlace = %@ 经度：%f 维度%f",firstPlacemark.name,longitude,latitude);
}
}];
}
- (void)reverseGeocodeWithLatitude:(double )latitude andLongtitude:(double)longtitude
{
// 开始反向编码
CLLocation *location = [[CLLocation alloc]initWithLatitude:latitude longitude:longtitude];
[self.geocoder reverseGeocodeLocation:locationcompletionHandler:^(NSArray *placemarks, NSError *error) {
if (error || placemarks.count == 0) {
NSLog(@"位置不存在");
} else {
CLPlacemark *placemark = [placemarks objectAtIndex:0];
NSLog(@"%@",placemark.name);
//获取城市
NSString *city = placemark.locality;
if (!city) {
//四大直辖市的城市信息无法通过locality获得，只能通过获取省份的方法来获得（如果city为空，则可知为直辖市）
city = placemark.administrativeArea;
}
NSLog(@"城市：%@",city);
*************// 编码成功（找到了具体的位置信息）
// 输出查询到的所有地标信息
for (CLPlacemark *placemark in placemarks) {
NSLog(@"name=%@ locality=%@ country=%@ postalCode=%@", placemark.name, placemark.locality, placemark.country, placemark.postalCode);
}
// 显示最前面的地标信息
CLPlacemark *firstPlacemark = [placemarks firstObject];
CLLocationDegrees latitude = firstPlacemark.location.coordinate.latitude;
CLLocationDegrees longitude = firstPlacemark.location.coordinate.longitude;
NSLog(@"fistPlace = %@ 经度：%f 维度%f",firstPlacemark.name,longitude,latitude);
}
}];
}
interface ViewController ()<UINavigationControllerDelegate, UIImagePickerControllerDelegate>
@property (nonatomic,strong)UIScrollView * sv;
@property (nonatomic,strong)NSMutableArray * images;
@end
@implementation ViewController
- (IBAction)clicked:(UIButton *)sender {
self.images= [NSMutableArray array];
UIImagePickerController * ipc = [[UIImagePickerController alloc]init];
ipc.delegate = self;
//是否要编辑，默认关闭的
//ipc.allowsEditing = YES;
[self presentViewController:ipc animated:YEScompletion:nil];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{
//返回的info为一个字典，可以直接输出
// NSLog(@"%@",info);
//选取UIImagePickerControllerOriginalImage等价一个字符串
// NSLog(@"%@----%@",UIImagePickerControllerOriginalImage,@"UIImagePickerControllerOriginalImage");
//返回未编辑图片 用UIImagePickerControllerOriginalImage 编辑的用UIImagePickerControllerEditedImage 可以选择相机来获取
UIImage * image = info[UIImagePickerControllerOriginalImage];
UIImageView *iv = [[UIImageViewalloc]initWithFrame:CGRectMake(80*self.images.count,0, 80,80)];
iv.image = image;
iv.userInteractionEnabled = YES;
[self.sv addSubview:iv];
UIButton * btn = [[UIButtonalloc]initWithFrame:CGRectMake(60, 0, 20, 20)];
[btn setTitle:@"x" forState:UIControlStateNormal];
[btn addTarget:self action:@selector(deleteAction:)forControlEvents:UIControlEventTouchUpInside];
[iv addSubview:btn];
[self.images addObject:iv];
NSLog(@"%ld",self.images.count);
[self.sv setContentSize:CGSizeMake(self.images.count*80,0)];
// [self dismissViewControllerAnimated:YES completion:nil];
}
- (void)navigationController:(UINavigationController*)navigationController willShowViewController:(UIViewController*)viewController animated:(BOOL)animated{
if (navigationController.viewControllers.count==2) {
UIView * v = [[UIView alloc]initWithFrame:CGRectMake(0,567, 375, 80)];
v.backgroundColor = [UIColor greenColor];
[viewController.view addSubview:v];
UIButton * btn = [[UIButtonalloc]initWithFrame:CGRectMake(300,0, 75, 20)];
[btn setBackgroundColor:[UIColor blueColor]];
[btn setTitle:@"Done" forState:UIControlStateNormal];
[btn addTarget:self action:@selector(backAction:)forControlEvents:UIControlEventTouchUpInside];
v.userInteractionEnabled =YES;
[v addSubview:btn];
self.sv = [[UIScrollViewalloc]initWithFrame:CGRectMake(0, 20, 375, 80)];
self.sv.backgroundColor = [UIColor blueColor];
[v addSubview:self.sv];
}
}
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