1 .h檔案
#import <UIKit/UIKit.h>
@protocol SixButtonDelegate <NSObject>
-(void)clickButton:(UIButton*)sender;
@end
@interface SixButton : UIView
@property(nonatomic,copy) NSMutableArray *tempLengthArr;
@property(nonatomic,copy) NSArray *titleItem;
@property(nonatomic,assign) float totalLength;
@property(nonatomic,assign) float midEdage;
@property(nonatomic,strong)UIView *movingView;
@property(nonatomic,strong) id <SixButtonDelegate> delegate;
@property(nonatomic,strong) UIButton *preSender;
-(instancetype)initWithFrame:(CGRect)frame AndTitleItem:(NSArray*)titleItem andSubTitleItem:(NSArray*)subTitleItem;
@end
2 .m 檔案
#import "SixButton.h"
@implementation SixButton
-(instancetype)initWithFrame:(CGRect)frame AndTitleItem:(NSArray *)titleItem andSubTitleItem:(NSArray *)subTitleItem{
self=[super initWithFrame:frame];
if (self) {
//
_titleItem=titleItem;
//calculate the length of ench item
for (NSString *title in titleItem) {
[self calculateItemStringLength:title];
}
//
_midEdage=(frame.size.width-_totalLength)/(titleItem.count-1);
//
[self create];
}
return self;
}
-(void)create{
for (int i=0; i<_titleItem.count; i++) {
[self addSubview: [self createButtonWith:i]];
// [self createSeperatorView:i];
}
_movingView=[[UIView alloc]initWithFrame:CGRectMake(0, self.frame.size.height-2, [[_tempLengthArr objectAtIndex:0] floatValue], 2)];
_movingView.backgroundColor=[UIColor blueColor];
[self addSubview:_movingView];
}
/*
*/
-(UIButton*)createButtonWith:(int)i{
NSLog(@"a");
static float x=0;
for (int j=0; j<i; j++) {
x+=[[_tempLengthArr objectAtIndex:j] floatValue];
}
x=x+i*_midEdage;
// NSLog(@"x=%f",x);
UIButton *btn=[UIButton buttonWithType:UIButtonTypeCustom];
btn.frame=CGRectMake(x, 0, [[_tempLengthArr objectAtIndex:i] floatValue], self.frame.size.height);
btn.tag=i;
btn.titleLabel.font=[UIFont systemFontOfSize:19];
[btn addTarget:self action:@selector(valueChange:) forControlEvents:UIControlEventTouchUpInside];
[btn setTitle:[_titleItem objectAtIndex:i] forState:UIControlStateNormal];
if (i==0) {
[btn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
self.preSender=btn;
}else{
[btn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
}
[self addSubview:btn];
x=0;
return btn;
}
/*
action
*/
-(void)valueChange:(UIButton*)sender{
if (self.preSender) {
[self.preSender setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
}
[sender setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
self.preSender=sender;
[UIView animateWithDuration:0.7 animations:^{
_movingView.frame = CGRectMake(sender.frame.origin.x, self.frame.size.height-2, sender.frame.size.width, 2);
}];
//此處新增點選操作
//self.superview.backgroundColor=[UIColor redColor];
[self.delegate clickButton:sender];
}
/*
計算item長度
*/
-(void)calculateItemStringLength:(NSString*)title{
//
NSStringDrawingOptions options = NSStringDrawingUsesLineFragmentOrigin| NSStringDrawingUsesFontLeading;
//
CGRect rect = [title boundingRectWithSize:CGSizeMake(1000, MAXFLOAT)options:options attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:19]} context:nil];
// NSLog(@"%f,%f",rect.size.width,rect.size.height);
if (!_tempLengthArr) {
_tempLengthArr=[[NSMutableArray alloc]init];
}
[_tempLengthArr addObject:[NSString stringWithFormat:@"%f",rect.size.width]];
NSLog(@"%f",rect.size.width);
if (_tempLengthArr.count==_titleItem.count) {
//static float total=0;
for ( int i=0 ; i<_tempLengthArr.count; i++) {
float f=[[_tempLengthArr objectAtIndex:i] floatValue];
_totalLength+=f;
}
}
}
@end
3.呼叫sixButton
遵循協議：SixButtonDelegate
self.buttonTitleArr=[NSArray arrayWithObjects:@"排行榜",@"動漫",@"遊戲",@"動物",@"科普",@"其他", nil];
//6個button；
SixButton *six=[[SixButton alloc]initWithFrame:CGRectMake(10, 40, SCREEN_Width-20, 30) AndTitleItem:self.buttonTitleArr andSubTitleItem:nil];
six.delegate=self;
[self.view addSubview:six];
/*協議方法*/
#pragma mark-search
-(void)clickButton:(UIButton *)sender{
//do something
}
4.效果圖
