新浪微博客户端(16)-获得并显示用户昵称
DJHomeViewController.m
- (void)updateTitleViewDisplayName { AFHTTPSessionManager *requestManager = [AFHTTPSessionManager manager]; NSString *urlString = @"https://api.weibo.com/2/users/show.json"; DJAccount *account = [DJAccountTool account]; NSMutableDictionary *params = [NSMutableDictionary dictionary]; params[@"access_token"] = account.access_token; params[@"uid"] = account.uid; [requestManager GET:urlString parameters:params progress:nil success:^(NSURLSessionDataTask * _Nonnull task, NSDictionary * _Nullable dict) { // 存储当前用户昵称 NSString *screen_name = dict[@"screen_name"]; account.screen_name = screen_name; [DJAccountTool saveAccount:account]; // 更新titleView显示昵称 UIButton *titleView = (UIButton *)self.navigationItem.titleView; [titleView setTitle:screen_name forState:UIControlStateNormal]; } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { DJLog(@"获取用户信息失败"); }]; }
DJTitleView.m
#import "DJTitleView.h" @implementation DJTitleView - (instancetype)initWithFrame:(CGRect)frame { self = [super initWithFrame:frame]; if (self) { [self setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; self.titleLabel.font = [UIFont systemFontOfSize:16]; [self setImage:[UIImage imageNamed:@"navigationbar_arrow_down"] forState:UIControlStateNormal]; [self setImage:[UIImage imageNamed:@"navigationbar_arrow_up"] forState:UIControlStateSelected]; // 设置选中状态 self.imageView.backgroundColor = [UIColor clearColor]; } return self; } - (void)layoutSubviews { [super layoutSubviews]; // 将按钮内部的imageView和titleLabel的位置对调,实现图标指示器在右侧的效果。 self.titleLabel.x = self.imageView.x; self.imageView.x = CGRectGetMaxX(self.titleLabel.frame) + 4; } @end
最终效果: