效果图: 按钮黑色背景为不可交互 黄色为点击时候的效果 白色为默认颜色
h文件
//// HomeTagView.h// YangLand//// Created by 赵大财 on 16/3/21.// Copyright © 2016年 tshiny. All rights reserved.//#import "BaseView.h"@class HomeTagView;@protocol HomeTagViewDelegate//点击代理方法@optional- (void)homeTagView:(HomeTagView *)buttonView clickButton:(UIButton *)button;@end@interface HomeTagView : BaseView- (instancetype)initWithTitle:(NSArray *)title mainViewWidth:(CGFloat)mainViewWidth;@property (nonatomic, weak) id delegate;/** *首次获取高度 首次计算 */- (CGFloat)heightForHomeTagView:(NSArray *)title mainViewWidth:(CGFloat)mainViewWidth;/** *二次获取高度 直接获取免计算 */- (CGFloat)heightGetHomeTagView;/** *改变按钮背景颜色 + 是否禁止交互 */- (void)changeBtnTitle:(NSArray *)title bgColor:(UIColor *)bgColor borderColor:(UIColor *)borderColor titleColor:(UIColor *)titleColor isAction:(BOOL)isAction;/** *开启点击选中 再次点击选中取消选中 */-(void)clickBtnChangeStateBgColor:(UIColor *)bgColor borderColor:(UIColor *)borderColor titleColor:(UIColor *)titleColor btn:(UIButton *)btn;@end
m文件
//// HomeTagView.m// YangLand//// Created by 赵大财 on 16/3/21.// Copyright © 2016年 tshiny. All rights reserved.//#import "HomeTagView.h"static const CGFloat btnHeight = 30; //按钮高度static const CGFloat fontSize = 16; //按钮文字大小static const CGFloat btnMarginW = 20; //按钮左右间距static const CGFloat btnMarginH = 10; //按钮上下间距static const CGFloat btnPadding = 20; //按钮内部边距static const CGFloat btnWidthMin = 40; //按钮最新宽度static const CGFloat btnBorderWidth = 0.5; //按钮文字边框宽度static const CGFloat btnRadius = 4; //按钮圆角#define TEXT_COLOR [UIColor blackColor] //按钮颜色#define BORDER_COLOR [UIColor blackColor] //边框颜色#define BTNBG_COLOR [UIColor whiteColor] //按钮的背景色@interface HomeTagView ()@property(strong,nonatomic) NSMutableArray *btnArr; //全部按钮@property(strong,nonatomic) UIButton *prevClickBtn; //@property(strong,nonatomic) NSArray *changeBtnArr; //已经被改变了颜色的按钮@property(strong,nonatomic) NSArray *btnFrameArr; //按钮frame@end@implementation HomeTagView- (instancetype)initWithTitle:(NSArray *)title mainViewWidth:(CGFloat)mainViewWidth { self=[super init]; if (self) { _btnArr = [NSMutableArray array]; NSArray * frame = [self returnBtnFrame:title :mainViewWidth]; int i = 0; for (NSArray *arr in frame) { UIButton *cbtn=[self createBtn:title[i]]; cbtn.x = [arr[0] floatValue]; //这里UIView扩展 cbtn.y = [arr[1] floatValue]; cbtn.width = [arr[2] floatValue]; cbtn.height = [arr[3] floatValue]; [self addSubview:cbtn]; [_btnArr addObject:cbtn]; i++; } } return self;}- (CGFloat)heightForHomeTagView:(NSArray *)title mainViewWidth:(CGFloat) mainViewWidth { CGFloat height; if(title.count>0){ NSArray *frame = [self returnBtnFrame:title :mainViewWidth]; NSArray *frameRow = [frame lastObject]; height= [frameRow[1] floatValue]+btnHeight; }else{ return 0; } return height;}- (CGFloat)heightGetHomeTagView { NSArray *frameRow = [_btnFrameArr lastObject]; CGFloat height = [frameRow[1] floatValue]+btnHeight; return height;}- (NSArray *)returnBtnFrame:(NSArray *)title : (CGFloat) mainViewWidth { int row = 0; //行数 CGFloat currentX = 0; //当前X CGFloat currentY = 0; //当前Y CGFloat preBtnW = 0; //上一个按钮宽度 NSMutableArray * frameArr = [NSMutableArray array]; for (int i=0; i mainViewWidth||(currentX+btnMarginW+btnWidth+preBtnW)>mainViewWidth){ row++; currentX=0; preBtnW = btnWidth; }else{ currentX += (btnMarginW+preBtnW); preBtnW = btnWidth; } } currentY = row*(btnHeight+btnMarginH); NSArray *arr = @[@(currentX),@(currentY),@(btnWidth),@(btnHeight)]; [frameArr addObject:arr]; } _btnFrameArr = frameArr; return frameArr;}- (UIButton*)createBtn:(NSString *)title { UIButton * btn =[UIButton buttonWithType:UIButtonTypeRoundedRect]; btn.backgroundColor = BTNBG_COLOR; [btn setTitle:title forState:UIControlStateNormal]; btn.layer.cornerRadius = btnRadius; btn.layer.masksToBounds = YES; UIColor *borderColor = BORDER_COLOR; btn.layer.borderColor = borderColor.CGColor; btn.layer.borderWidth = btnBorderWidth; [btn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside]; [btn setTitleColor:TEXT_COLOR forState:UIControlStateNormal]; return btn;}- (void)changeBtnTitle:(NSArray *)title bgColor:(UIColor *)bgColor borderColor:(UIColor *)borderColor titleColor:(UIColor *)titleColor isAction:(BOOL)isAction{ _changeBtnArr = title; for (UIButton *btn in _btnArr) { if([title containsObject:btn.titleLabel.text]){ btn.backgroundColor = bgColor; [btn setTitleColor:titleColor forState:UIControlStateNormal]; UIColor *borderColor = bgColor; btn.layer.borderColor = borderColor.CGColor; btn.userInteractionEnabled = isAction; } }}- (void)clickBtnChangeStateBgColor:(UIColor *)bgColor borderColor:(UIColor *)borderColor titleColor:(UIColor *)titleColor btn:(UIButton *)btn { if(btn == _prevClickBtn){ _prevClickBtn = nil; btn.backgroundColor = BTNBG_COLOR; UIColor *borderColor = BORDER_COLOR; btn.layer.borderColor = borderColor.CGColor; [btn setTitleColor:TEXT_COLOR forState:UIControlStateNormal]; }else{ for (UIButton *btn in _btnArr) { if(![_changeBtnArr containsObject:btn.titleLabel.text]){ btn.backgroundColor = BTNBG_COLOR; UIColor *borderColor = BORDER_COLOR; btn.layer.borderColor = borderColor.CGColor; [btn setTitleColor:TEXT_COLOR forState:UIControlStateNormal]; } } btn.backgroundColor = bgColor; [btn setTitleColor:titleColor forState:UIControlStateNormal]; btn.layer.borderColor = borderColor.CGColor; _prevClickBtn = btn; }}- (void)btnClick:(UIButton *)btn { if ([_delegate respondsToSelector:@selector(homeTagView:clickButton:)]) { [_delegate homeTagView:self clickButton:btn ]; } }@end