自定义天气框小控件

@interface ZQWeatherView : UIView


/**
 *  需要AFNetworking、SDWebImage框架 ; 加载的是当天的天气 ; 宽110，高73 ; 点击天气框移除
 *
 *  @param frame 天气框架的frame，宽高无效
 *  @param city  城市
 *  @param color 文字的颜色
 *
 *  @return 返回天气框
 */
-(instancetype)initWithFrame:(CGRect)frame City:(NSString*)city WritingColor :(UIColor *)color;

@end

//定义百度天气的KEY
#define kBDWeather_KEY @"17IvzuqmKrK1cGwNL6VQebF9"

//定义百度天气的接口URL
#define kGetWeather_URL(city) ([NSString stringWithFormat: @"http://api.map.baidu.com/telematics/v3/weather?location=%@&output=json&ak=%@", city, kBDWeather_KEY])

@interface ZQWeatherView ()

@property (nonatomic,strong) UIImageView * img;

@property (nonatomic,strong) UILabel * lab;

@property (nonatomic,strong) UILabel * dateLabel;

@property (nonatomic,strong) UILabel * city;

@property (nonatomic,strong)UIButton * cancleBtn;

@property(nonatomic,strong) UIView * back;

@property (nonatomic,strong) NSDictionary * weatherDataDict;

@property (nonatomic,strong) UIActivityIndicatorView * acView;

@end

  1 //提供对象方法初始化控件
  2 
  3 -(instancetype)initWithFrame:(CGRect)frame City:(NSString*)city WritingColor :(UIColor *)color
  4 {
  5 
  6     self = [super init];
  7 
  8     if (self) {
  9         
 10         //传入的宽高无效
 11         self.frame = CGRectMake(frame.origin.x, frame.origin.y, 110, 73);
 12         self.backgroundColor = [UIColor clearColor];
 13         self.layer.cornerRadius = 5;
 14         self.layer.masksToBounds = YES;
 15         
 16         //生成背后的蒙版
 17         self.back = [[UIView alloc]init];
 18         self.back.backgroundColor=[UIColor blackColor];
 19         self.back.alpha=0.3;
 20         [self addSubview:self.back];
 21         
 22         
 23         //天气图标
 24         self.img = [[UIImageView alloc]init];
 25         self.img.layer.cornerRadius=3;
 26         self.img.layer.masksToBounds=YES;
 27         [self addSubview:self.img];
 28         
 29         //天气信息
 30         self.lab = [[UILabel alloc]init];
 31         self.lab.font=[UIFont systemFontOfSize:14];
 32         [self addSubview:self.lab];
 33         
 34         //添加城市信息
 35         self.city = [[UILabel alloc]init];
 36         [self.city sizeToFit];
 37         self.city.font=[UIFont systemFontOfSize:18];
 38         [self addSubview:self.city];
 39         self.city.textAlignment = NSTextAlignmentCenter;
 40         
 41         //日期栏
 42         self.dateLabel= [[UILabel alloc]init];
 43         self.dateLabel.font = [UIFont systemFontOfSize:11];
 44         [self addSubview:self.dateLabel];
 45  
 46         
 47         
 48         //添加一个按钮，移除天气框（按钮大小和天气框一样）
 49         self.cancleBtn = [[UIButton alloc]init];
 50         [self.cancleBtn setBackgroundColor:[UIColor clearColor]];
 51         [self.cancleBtn addTarget:self action:@selector(cancleClick:) forControlEvents:UIControlEventTouchUpInside];
 52         [self addSubview:self.cancleBtn];
 53         
 54 
 55         dispatch_async(dispatch_get_main_queue(), ^{
 56           
 57             [self.acView startAnimating];
 58             
 59             //加载天气数据 （百度天气）
 60             
 61             [self loadWeatherData:city];
 62             
 63         });
 64         
 65         //设置几个控件的文字颜色
 66         self.lab.textColor = color;
 67         self.dateLabel.textColor= color;
 68         self.city.textColor = color;
 69     }
 70     return self;
 71 }
 72 
 73 
 74 
 75 //加载数据
 76 - (void)loadWeatherData:(NSString *)city {
 77     
 78     NSString *urlString = kGetWeather_URL(city);
 79     
 80     // 百分号转义
 81     urlString = [urlString stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
 82     
 83     //通过AFN 创建网络管理，发送网络请求
 84     AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
 85     
 86     [manager GET:urlString parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) {
 87     } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
 88        
 89         
 90         NSDictionary *dict = (NSDictionary *)responseObject;
 91 
 92         //有数据时再往下进行
 93         if (dict[@"results"]) {
 94             
 95         [self.acView stopAnimating];
 96         
 97         
 98         self.weatherDataDict = dict;
 99         
100         //获取数据了，直接给控件赋值
101         
102         // 1 图片
103         NSDictionary *dateDict = dict[@"results"][0][@"weather_data"][0];
104         
105         NSString *urlString = dateDict[@"dayPictureUrl"];
106         
107         NSURL *url = [NSURL URLWithString:urlString];
108 
109         [self.img sd_setImageWithURL:url];
110         
111         [self.img sizeToFit];
112         
113         //2 温度
114         NSString *temper = dateDict[@"date"];
115         
116         //字符串转为数组
117         NSArray *arr = [temper componentsSeparatedByString:@" "];
118         
119         NSString *arrthree = arr[2];
120         
121         NSString *temperlab1 = [arrthree substringFromIndex:4];
122         
123         NSString *temperlab =[temperlab1 substringToIndex:(temperlab1.length -1)];
124                 
125         self.lab.text = [NSString stringWithFormat:@"今日温度:%@",temperlab];
126         
127         [self.lab sizeToFit];
128         
129         //3 日期
130         self.dateLabel.text = dict[@"date"];
131         
132         [self.dateLabel sizeToFit];
133         
134         //4 城市
135         self.city.text = city;
136       
137         
138     }
139      
140         
141     } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
142         
143         NSLog(@"网络错误");
144     }];
145     
146  
147 
148 }
149 
150 //布局所有子控件
151 -(void)layoutSubviews {
152     
153     [super layoutSubviews];
154     
155     //布局
156     
157     self.lab.frame = CGRectMake(10,8, self.lab.width, self.lab.height);
158     
159     self.city.frame = CGRectMake(10, self.lab.bottom+2, self.width-35, 25);
160     
161     self.img.frame = CGRectMake(self.width-10-20,self.lab.bottom+5,24,24);
162 
163     self.dateLabel.frame = CGRectMake(10,self.city.bottom+3,self.dateLabel.width, self.dateLabel.height);
164     self.cancleBtn.frame=CGRectMake(0, 0, self.width, self.height);
165     self.back.frame=CGRectMake(0, 0, self.width, self.height);
166     
167     self.acView.center = CGPointMake(self.width/2, self.height/2);
168     
169     
170 }
171 
172 
173 
174 //移除天气框的方法
175 -(void)cancleClick:(UIButton *)btn
176 {
177     [self removeFromSuperview];
178 }
179 
180 //懒加载储存天气信息的字典
181 - (NSDictionary *)weatherDataDict {
182     
183     if (!_weatherDataDict) {
184         
185         _weatherDataDict = [[NSDictionary alloc]init];
186     }
187     return _weatherDataDict;
188 }
189 
190 //菊花转轮
191 -(UIActivityIndicatorView *)acView
192 {
193     if (!_acView) {
194         _acView = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
195         
196         [self addSubview:_acView];
197     }
198     
199     return _acView;
200 
201 }
202 

@interface UIView (EXTFrame)

@property (nonatomic,assign) CGFloat x;
@property (nonatomic,assign) CGFloat y;
@property (nonatomic,assign) CGFloat width;
@property (nonatomic,assign) CGFloat height;
@property (nonatomic, assign) CGPoint origin;
@property (nonatomic, assign) CGFloat left;
@property (nonatomic, assign) CGFloat right;
@property (nonatomic, assign) CGFloat top;
@property (nonatomic, assign) CGFloat bottom;

@end

@implementation UIView (EXTFrame)

-(void)setX:(CGFloat)x
{
    CGRect rect = self.frame;
    rect.origin.x=x;
    self.frame = rect;
}

-(CGFloat)x
{
  return self.frame.origin.x;
}

-(void)setY:(CGFloat)y
{
    CGRect rect = self.frame;
    rect.origin.y=y;
    self.frame=rect;
}

-(CGFloat)y
{
    return self.frame.origin.y;
}

-(void)setWidth:(CGFloat)width
{
    CGRect rect = self.frame;
    rect.size.width=width;
    self.frame=rect;
}

-(CGFloat)width
{
    return self.frame.size.width;
}

-(void)setHeight:(CGFloat)height
{
    CGRect rect = self.frame;
    rect.size.height=height;
    self.frame=rect;
}

-(CGFloat)height
{
    return self.frame.size.height;
}

- (CGPoint)origin
{
    return self.frame.origin;
}

- (void)setOrigin:(CGPoint)origin
{
    CGRect frame = self.frame;
    frame.origin = origin;
    self.frame = frame;
}

- (void)setLeft:(CGFloat)left
{
    self.origin = CGPointMake(left, self.origin.y);
}

- (CGFloat)left
{
    return self.origin.x;
}

- (void)setRight:(CGFloat)right
{
    self.origin = CGPointMake(right - self.width, self.origin.y);
}

- (CGFloat)right
{
    return self.origin.x + self.width;
}

- (void)setTop:(CGFloat)top
{
    self.origin = CGPointMake(self.origin.x, top);
}

- (CGFloat)top
{
    return self.origin.y;
}

- (void)setBottom:(CGFloat)bottom
{
    self.origin = CGPointMake(self.origin.x, bottom - self.height);
}

- (CGFloat)bottom
{
    return self.origin.y + self.height;
}

@end