【代碼筆記】iOS-4個可以單獨點擊的button，ios-4button

【代碼筆記】iOS-4個可以單獨點擊的button，ios-4button

一，。

二，工程圖。

三，代碼。

ViewController.m

#import "ViewController.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.        //初始化背景圖    [self addBackGroundView];    }#pragma -mark -functions//初始化背景圖-(void)addBackGroundView{    //4個連著的button    for (int i=0; i<4; i++) {                UIButton *chooseButton=[UIButton buttonWithType:UIButtonTypeCustom];        chooseButton.frame=CGRectMake(0+80*i,50, 80, 38);        chooseButton.tag=i;        if (i==0) {            [chooseButton setBackgroundImage:[UIImage imageNamed:@"shoplist_tab_getno1"] forState:UIControlStateNormal];        }else if (i==1){            [chooseButton setBackgroundImage:[UIImage imageNamed:@"shoplist_tab_getyes1"] forState:UIControlStateNormal];        }else if (i==2){            [chooseButton setBackgroundImage:[UIImage imageNamed:@"shoplist_tab_workno1"] forState:UIControlStateNormal];        }else if (i==3){            [chooseButton setBackgroundImage:[UIImage imageNamed:@"shoplist_tab_workyes1"] forState:UIControlStateNormal];        }        [chooseButton setBackgroundColor:[UIColor clearColor]];        [chooseButton addTarget:self action:@selector(doClickChooseButton:) forControlEvents:UIControlEventTouchUpInside];        [self.view addSubview:chooseButton];            }}#pragma -mark -doClickActions//4個按鈕-(void)doClickChooseButton:(UIButton *)btn{    NSLog(@"---doClickChooseButton--");    if (btn.tag==0) {        if (btn.selected==NO) {            [btn setBackgroundImage:[UIImage imageNamed:@"shoplist_tab_getno2"] forState:UIControlStateNormal];            btn.selected=YES;        }else{            [btn setBackgroundImage:[UIImage imageNamed:@"shoplist_tab_getno1"] forState:UIControlStateNormal];            btn.selected=NO;        }            }else if (btn.tag==1){        if (btn.selected==NO) {            [btn setBackgroundImage:[UIImage imageNamed:@"shoplist_tab_getyes2"] forState:UIControlStateNormal];            btn.selected=YES;        }else{            [btn setBackgroundImage:[UIImage imageNamed:@"shoplist_tab_getyes1"] forState:UIControlStateNormal];            btn.selected=NO;        }            }else if (btn.tag==2){        if (btn.selected==NO) {            [btn setBackgroundImage:[UIImage imageNamed:@"shoplist_tab_workno2"] forState:UIControlStateNormal];            btn.selected=YES;        }else{            [btn setBackgroundImage:[UIImage imageNamed:@"shoplist_tab_workno1"] forState:UIControlStateNormal];            btn.selected=NO;        }            }else if (btn.tag==3){        if (btn.selected==NO) {            [btn setBackgroundImage:[UIImage imageNamed:@"shoplist_tab_workyes2"] forState:UIControlStateNormal];            btn.selected=YES;        }else{            [btn setBackgroundImage:[UIImage imageNamed:@"shoplist_tab_workyes1"] forState:UIControlStateNormal];            btn.selected=NO;        }            }    }- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end