代码创建按钮
隨著iOS開(kāi)發(fā)發(fā)展至今,在UI制作上逐漸分化為了三種主要流派:使用代碼手寫(xiě)UI及布局;使用單個(gè)xib文件組織viewController或者view;使用StoryBoard來(lái)通過(guò)單個(gè)或很少的幾個(gè)(文件構(gòu)建全部UI。
每種方式各有優(yōu)缺點(diǎn),根據(jù)實(shí)際的開(kāi)發(fā)項(xiàng)目,合適的選擇一種方式來(lái)實(shí)現(xiàn).(詳見(jiàn):http://www.cocoachina.com/industry/20140102/7640.html)
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1 // 2 // ViewController.m 3 // 04-代碼創(chuàng)建按鈕 4 // 5 // Created by hukezhu on 15/4/25. 6 // 7 // 8 9 #import "ViewController.h" 10 11 @interface ViewController () 12 13 @end 14 15 @implementation ViewController 16 17 - (void)viewDidLoad { 18 [super viewDidLoad]; 19 //1,創(chuàng)建按鈕 20 UIButton *btn = [[UIButton alloc]init]; 21 //2,添加按鈕 22 [self.view addSubview:btn]; 23 //3,設(shè)置frame 24 btn.frame = CGRectMake(50, 50, 100, 100); 25 //4,設(shè)置背景圖片 26 //4.1,通過(guò)文件名加載圖片(凡是PNG圖片,不需要加擴(kuò)展名) 27 UIImage *noraml = [UIImage imageNamed:@"mingren"]; 28 //4.2設(shè)置普通狀態(tài)下的背景圖片 29 [btn setBackgroundImage:noraml forState:UIControlStateNormal]; 30 31 //4.3加載高亮的圖片 32 UIImage *high = [UIImage imageNamed:@"chutian"]; 33 [btn setBackgroundImage:high forState:UIControlStateHighlighted]; 34 35 //5.設(shè)置文字 36 [btn setTitle:@"點(diǎn)我啊" forState:UIControlStateNormal]; 37 [btn setTitle:@"摸我干啥" forState:UIControlStateHighlighted]; 38 39 //6.設(shè)置文字的顏色 40 [btn setTitleColor:[UIColor redColor] forState:UIControlStateNormal]; 41 42 [btn setTitleColor:[UIColor blueColor] forState:UIControlStateHighlighted]; 43 44 //7.監(jiān)聽(tīng)按鈕點(diǎn)擊 45 [btn addTarget:self action:@selector(btnClick) forControlEvents:UIControlEventTouchUpInside]; 46 47 //8. 隱藏導(dǎo)航欄(看不清加號(hào)按鈕) 48 - (BOOL)prefersStatusBarHidden{ 49 50 return YES; 51 } 52 53 -(void)btnClick{ 54 55 NSLog(@"------------------"); 56 } 57 58 @end
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轉(zhuǎn)載于:https://www.cnblogs.com/hukezhu/p/4500206.html
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