iPhone的九宫格实现代码

最新推荐文章于 2025-08-12 17:54:22 发布

转载最新推荐文章于 2025-08-12 17:54:22 发布 · 1.6k 阅读

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本文介绍了一种在iOS应用中实现九宫格界面的方法，包括按钮布局、响应事件及背景图设置等关键技术点。

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转自：http://www.ieliwb.com/iphone-nine-box/

效果图:

核心就这2个方法:

//Power by ieliwb.com - (void)viewDidLoad { [super viewDidLoad]; NSArray* imageNames = [NSArray arrayWithObjects: @"ico_mobile.png", @"ico_idcard.png", @"ico_postcode.png", @"ico_flight.png", @"ico_translate.png", @"ico_phone.png", @"ico_car.png", @"ico_health.png", @"ico_bjxm.png", nil]; UIButton *Btn; for (int i=0; i<9; i++) { CGRect frame; Btn = [[UIButton buttonWithType:UIButtonTypeCustom] retain]; [Btn setImage:[UIImage imageNamed:[imageNames objectAtIndex: i]] forState:UIControlStateNormal];//设置按钮图片 Btn.tag = i; frame.size.width = 59;//设置按钮坐标及大小 frame.size.height = 75; frame.origin.x = (i%3)*(59+32)+40; frame.origin.y = floor(i/3)*(75+24)+40; [Btn setFrame:frame]; [Btn setBackgroundColor:[UIColor clearColor]]; [Btn addTarget:self action:@selector(btnPressed:) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:Btn]; [Btn release]; } } //响应按钮事件 -(void)btnPressed:(id)sender{ UIButton *Btn = (UIButton *)sender; int index = Btn.tag; switch (index) { case 0: if(mobileController==nil) mobileController = [[MobileController alloc]init]; [self.navigationController pushViewController:mobileController animated:YES]; break; //其他几个控制器类似 } }

九宫格背景修改可以这样实现:

- (void)loadView { UIImageView *contentView = [[UIImageView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]]; [contentView setImage:[UIImage imageNamed:@"subview_9_bg.png"]]; [contentView setUserInteractionEnabled:YES]; self.view = contentView; [contentView release]; }

UINavigationBar背景图片可以这样实现:

@implementation UINavigationBar (CustomImage) - (void)drawRect:(CGRect)rect { UIImage *image = [UIImage imageNamed: @"top_bg.png"]; [image drawInRect:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)]; } @end

Tabbar背景图片：