一个vc需要加一个view，一个view上面有imageView,label,button等。我们把这个view独立一个类出来，button加点击事件。定义一个简单的block，作为点击事件的一个参数，在vc中重新穿件这个view的实例，add进去，然后setblock，就可以直接回调，响应定义好的点击事件。
类TYDDownLoadTianyaQIngView
.h文件
#import
@interface TYDDownLoadTianyaQingView : UIView
// 定义一个block，返回值void，名字为clickBlock
@property (nonatomic, copy)void(^clickBlock)();
- (id)initBasicViewWithFrame:(CGRect)frame;
- (void)downLoadButtonClick:(void(^)())clickBlock;
@end
.m文件
#import "TYDDownLoadTianyaQingView.h"
@interface TYDDownLoadTianyaQingView ()
@property (nonatomic, strong) UIImageView *iconImageView;
@property (nonatomic, strong) UILabel *describeLabel;
@property (nonatomic, strong) UIButton *downLoadButton;
@end
@implementation TYDDownLoadTianyaQingView
- (id)initBasicViewWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self)
{
self.backgroundColor = [UIColor colorInSkinWithKey:@"useColor2"];
[self initBasicView];
}
return self;
}
- (void)initBasicView
{
_iconImageView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"more_gowelun"]];
[self addSubview:_iconImageView];
_describeLabel = [[UILabel alloc] init];
_describeLabel.text = @"热门版块、精彩互动\n尽在天涯社区官方APP";
_describeLabel.font = kUseFont5;
_describeLabel.textColor = [UIColor colorInSkinWithKey:@"useColor5"];
_describeLabel.textAlignment = NSTextAlignmentLeft;
_describeLabel.numberOfLines = 2;
[self addSubview:_describeLabel];
_downLoadButton = [UIButton buttonWithType:UIButtonTypeCustom];
[_downLoadButton setTitle:@"下载" forState:UIControlStateNormal];
[_downLoadButton setTitleColor:[UIColor colorInSkinWithKey:@"subTextColor"] forState:UIControlStateNormal];
_downLoadButton.titleLabel.font = kUseFont5;
[_downLoadButton setBackgroundColor:[UIColor colorInSkinWithKey:@"navTitleTextColor"]];
// 加点击事件
[_downLoadButton addTarget:self action:@selector(downLoadButtonClick:) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:_downLoadButton];
[_iconImageView mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.equalTo(self.mas_left).offset(10);
make.size.mas_equalTo(CGSizeMake(29, 29));
make.centerY.equalTo(self.mas_centerY);
}];
[_describeLabel mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.equalTo(_iconImageView.mas_right).offset(10);
make.top.equalTo(_iconImageView.mas_top).offset(-2);
make.right.equalTo(_downLoadButton.mas_left).offset(-10);
}];
[_downLoadButton mas_makeConstraints:^(MASConstraintMaker *make) {
make.size.mas_equalTo(CGSizeMake(60, 20));
make.centerY.equalTo(self.mas_centerY);
make.right.equalTo(self.mas_right).offset(-10);
}];
}
- (void)downLoadButtonClick:(void(^)())clickBlock
{
// 使定义的block等于传入的block，就可以在其他页面传入_block的值，实现点击事件回调
_clickBlock = clickBlock;
NSURL * url = [NSURL URLWithString:@"tianyaQing://tianya"];
BOOL installed = [[UIApplication sharedApplication] canOpenURL:url];
if (installed) {
[[UIApplication sharedApplication] openURL:url];
}
else
{
NSString*str = [NSString stringWithFormat:@"http://itunes.apple.com/us/app/id%d",529696004];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];
}
}
@end
VC中实例化TYDDownLoadTianyaQingView
_downLoadView = [[TYDDownLoadTianyaQingView alloc] initBasicViewWithFrame:CGRectMake(10, self.view.frame.size.height-140, self.view.frame.size.width-20, 60)];
调用block的set方法实现回调
[_downLoadView setClickBlock:^{
}];