1.头文件定义block回调和让按钮模拟点击方法
#import
typedefvoid(^ClickBlock)(NSIntegerbuttonTag);
@interfaceSelectAnimationView :UIView
- (void)clikButtontag:(NSInteger)buttonTag;
@property(nonatomic,copy)ClickBlockblock;
@end
2.实现文件，初始化view 让按钮的下标线 点击做一个简单位移动画
#import"SelectAnimationView.h"
#define SPACINGWIDTH30
@implementationSelectAnimationView
- (instancetype)initWithFrame:(CGRect)frame{
self=[superinitWithFrame:frame];
if(self) {
[selfsetBackgroundColor:[UIColorblackColor]];
UIButton*videoSelectButton=[UIButtonbuttonWithType:UIButtonTypeCustom];
[videoSelectButtonsetTitle:@"视频"forState:UIControlStateNormal];
[videoSelectButtonsetTitleColor:[UIColororangeColor]forState:UIControlStateNormal];
[videoSelectButtonsetFrame:CGRectMake(SPACINGWIDTH,0, (VIEWWIDTH-2*SPACINGWIDTH)/3,VIEWHEIGT-2)];
videoSelectButton.tag=1;
[videoSelectButtonaddTarget:selfaction:@selector(clickButton:)forControlEvents:UIControlEventTouchUpInside];
[selfaddSubview:videoSelectButton];
UIView*lineView=[[UIViewalloc]initWithFrame:CGRectMake(SPACINGWIDTH,VIEWHEIGT-2, (VIEWWIDTH-2*SPACINGWIDTH)/3,2)];
lineView.tag=3;
[lineViewsetBackgroundColor:[UIColororangeColor]];
[selfaddSubview:lineView];
UIButton*photoSelectButton =[UIButtonbuttonWithType:UIButtonTypeCustom];
[photoSelectButtonsetTitle:@"照片"forState:UIControlStateNormal];
[photoSelectButtonsetTitleColor:[UIColorgrayColor]forState:UIControlStateNormal];
photoSelectButton.tag=2;
[photoSelectButtonaddTarget:selfaction:@selector(clickButton:)forControlEvents:UIControlEventTouchUpInside];
[photoSelectButtonsetFrame:CGRectMake(VIEWWIDTH-(VIEWWIDTH-2*SPACINGWIDTH)/3-SPACINGWIDTH,0, (VIEWWIDTH-2*SPACINGWIDTH)/3,VIEWHEIGT)];
[selfaddSubview:photoSelectButton];
}
returnself;
}
- (void)clickButton:(UIButton*)button{
UIButton*videoButton=[selfviewWithTag:1];
UIButton*photoButton=[selfviewWithTag:2];
UIView*lineView=[selfviewWithTag:3];
if(button.tag==1) {
[UIViewanimateWithDuration:0.5animations:^{
[videoButtonsetTitleColor:[UIColororangeColor]forState:UIControlStateNormal];
[photoButtonsetTitleColor:[UIColorgrayColor]forState:UIControlStateNormal];
[lineViewsetFrame:CGRectMake(SPACINGWIDTH,VIEWHEIGT-2, (VIEWWIDTH-2*SPACINGWIDTH)/3,2)];
}completion:^(BOOLfinished){
}];
}else{
[UIViewanimateWithDuration:0.5animations:^{
[photoButtonsetTitleColor:[UIColororangeColor]forState:UIControlStateNormal];
[videoButtonsetTitleColor:[UIColorgrayColor]forState:UIControlStateNormal];
[lineViewsetFrame:CGRectMake(VIEWWIDTH-(VIEWWIDTH-2*SPACINGWIDTH)/3-SPACINGWIDTH,VIEWHEIGT-2, (VIEWWIDTH-2*SPACINGWIDTH)/3,2)];
}completion:^(BOOLfinished){
}];
}
_block(button.tag);
}
- (void)clikButtontag:(NSInteger)buttonTag;{
UIButton*clickButton=[selfviewWithTag:buttonTag];
[selfclickButton:clickButton];
}
@end
