Set view dynamic pictures

This article just implements a simple function , according to YYKit Realization .
Create a new project first , Open the input with the terminal vim Podfile( The premise is that your computer can be used pod Managing third parties ) take YYkit use cocopod Integrate , Okay , The preparatory work has been completed , Next, I'm going to write .
Create a new class MineHeaderView, stay .h Introduction in #import

@property (nonatomic, strong)  YYAnimatedImageView *headerImgView;// Head portrait 

.m In file ：
When not used xib The system automatically uses this method ：

- (instancetype)initWithFrame:(CGRect)frame
{
    if (self = [super initWithFrame:frame]) {
        [self.headerImgView setImageWithURL:[NSURL URLWithString:@"https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1503377311744&di=a784e64d1cce362c663f3480b8465961&imgtype=0&src=http%3A%2F%2Fww2.sinaimg.cn%2Flarge%2F85cccab3gw1etdit7s3nzg2074074twy.jpg"] placeholder:[UIImage imageWithColor:[UIColor grayColor]]];
    }
    return self;
}

To write headerImgView Lazy loading

- (YYAnimatedImageView *)headerImgView
{
    if (!_headerImgView) {
        _headerImgView = [YYAnimatedImageView new];
        _headerImgView.contentMode = UIViewContentModeScaleToFill;
        _headerImgView.userInteractionEnabled = YES;

        _headerImgView.layer.cornerRadius = 90/2;
        _headerImgView.layer.masksToBounds = YES;
        [self addSubview:_headerImgView];
        [_headerImgView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.width.height.mas_equalTo(90);
            make.centerX.centerY.mas_equalTo(self);
        }];
    }
    return _headerImgView;
}

It's used in this masonry So in pouring YYKit when , take Masonry Import together , In this case MineHeaderView This class completes , The next step is to use .

stay ViewController Introduction in #import “MineHeaderView.h”
to headerView A statement

@property (nonatomic, strong) MineHeaderView *headerView;// Head view 

establish UI

- (void)createUI
{
    self.headerView = [[MineHeaderView alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, 260)];
    self.headerView.backgroundColor = [UIColor redColor];
    [self.view addSubview:self.headerView];
}

Call this method to achieve .