猫猫分享,必须精品
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地址:http://blog.csdn.net/u013357243?viewmode=contents
注意图里面了吗,其实那个效果做起来真的很简单,在iOS中苹果给我们封装的很好,关键是那个按钮
系统的按钮的图片是在左边的,这里我们需要把他调整到右边,然后呢需要我们自己做一下操作。
话不多说,先把所有代码放上来。能看懂就不用看别的了。(这么详细的注释,看不懂才怪。。)
//
// NYBuyController.m
// 彩票lottery
//
// Created by apple on 15-5-10.
// Copyright (c) 2015年 znycat. All rights reserved.
//
#import "NYBuyController.h"
#import "NYTitleButton.h"
@interface NYBuyController ()
- (IBAction)titleBtnOnClick:(NYTitleButton *)titleBtn;
// 定义变量记录当前按钮的状态
@property (nonatomic, assign, getter = isOpen) BOOL open;
@property (nonatomic, weak) UIView *contentView;
@end
@implementation NYBuyController
/**懒加载,点击标题弹出的view*/
-(UIView *)contentView
{
if (_contentView == nil) {
// 添加将来需要显示的View
UIView *contentView = [[UIView alloc] init];
contentView.backgroundColor = [UIColor greenColor];
contentView.frame = CGRectMake(0, 64, 320, 200);
[self.view addSubview:contentView];
_contentView = contentView;
// 隐藏该View
}
return _contentView;
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.contentView.hidden = YES;
}
- (IBAction)titleBtnOnClick:(NYTitleButton *)titleBtn {
if (!self.isOpen) {// 没有打开
[UIView animateWithDuration:1.0 animations:^{
// 1.旋转按钮上的尖尖
titleBtn.imageView.transform = CGAffineTransformMakeRotation(M_PI);
}];
// 改变当前按钮的状态
CATransition *ca = [CATransition animation];
ca.type = @"cube";
[self.contentView.layer addAnimation:ca forKey:nil];
self.open = YES;
// 显示内容view
self.contentView.hidden = NO;
}else // 已经打开
{
[UIView animateWithDuration:1.0 animations:^{
// 1.旋转按钮上的尖尖
titleBtn.imageView.transform = CGAffineTransformIdentity;
}];
// 改变当前按钮的状态
//添加动画
CATransition *ca = [CATransition animation];
ca.type = @"cube";
[self.contentView.layer addAnimation:ca forKey:nil];
self.open = NO;
// 隐藏内容View
self.contentView.hidden = YES;
}
}
@end
//
// NYTitleButton.m
// 彩票lottery
//
// Created by apple on 15-5-10.
// Copyright (c) 2015年 znycat. All rights reserved.
//
#import "NYTitleButton.h"
@interface NYTitleButton ()
@property (nonatomic, strong) UIFont *myFont;
@end
@implementation NYTitleButton
-(id)initWithCoder:(NSCoder *)aDecoder
{
if (self = [super initWithCoder:aDecoder]) {
[self setup];
}
return self;
}
-(id)initWithFrame:(CGRect)frame
{
if (self = [super initWithFrame:frame]) {
[self setup];
}
return self;
}
-(void)setup
{
// 记录按钮标题的字体
self.myFont = [UIFont systemFontOfSize:16];
// 设置标题的字体
self.titleLabel.font = self.myFont;
// 设置按钮的图片显示的内容默认为剧中(为了不拉伸)
self.imageView.contentMode = UIViewContentModeCenter;
}
// 用于返回按钮上标题的位置, 传入按钮的rect
- (CGRect)titleRectForContentRect:(CGRect)contentRect
{
CGFloat titleX = 0;
CGFloat titleY = 0;
CGFloat titleH = contentRect.size.height;
// 获取当前按钮上的文字
// [self titleForState:UIControlStateNormal];
NSString *title = self.currentTitle;
CGSize maxSize = CGSizeMake(MAXFLOAT, MAXFLOAT);
NSMutableDictionary *md = [NSMutableDictionary dictionary];
md[NSFontAttributeName] = self.myFont;
// 计算文字的范围
CGFloat titleW = 0;
// 判断是否是xcode5 , 如果是就编译一下代码, 如果不是就不编译
#ifdef __IPHONE_7_0
if (iOS7) { // 是IOS7
CGRect titleRect = [title boundingRectWithSize:maxSize options:NSStringDrawingUsesLineFragmentOrigin attributes:md context:nil];
titleW = titleRect.size.width;
}else
{
// 非IOS7
CGSize titleSize = [title sizeWithFont:self.myFont];
titleW = titleSize.width;
}
#else
// XCODE4
CGSize titleSize = [title sizeWithFont:self.myFont];
titleW = titleSize.width;
#endif
return CGRectMake(titleX, titleY, titleW, titleH);
}
- (CGRect)imageRectForContentRect:(CGRect)contentRect
{
CGFloat imageY = 0;
CGFloat imageH = contentRect.size.height;
CGFloat imageW = 16;
// 图片的X = 按钮的宽度 - 图片宽度
CGFloat imageX = contentRect.size.width - imageW;
return CGRectMake(imageX, imageY, imageW, imageH);
}
@end
#define iOS7 ([[UIDevice currentDevice].systemVersion doubleValue] >= 7.0)
要想实现自定义按钮位置 主要是重写下面两个方法
- (CGRect)titleRectForContentRect:(CGRect)contentRect;
- (CGRect)imageRectForContentRect:(CGRect)contentRect;
这里上面代码中写的很清楚了,不多说了就,需要注意的是,我们在算title的长度的时候出现了一些状况,那就是iOS6里面没有这个方法,以及xcode4.5版本会编译出错的问题,在这里做了iOS6,7的适配以及编译器的适配:
(iOS7)这个是宏,在pch文件里面有定义
#ifdef __IPHONE_7_0
是Availability.h里的 xcode4.5里面没有
#ifdef __IPHONE_7_0
if (iOS7) { // 是IOS7
CGRect titleRect = [title boundingRectWithSize:maxSize options:NSStringDrawingUsesLineFragmentOrigin attributes:md context:nil];
titleW = titleRect.size.width;
}else
{
// 非IOS7
CGSize titleSize = [title sizeWithFont:self.myFont];
titleW = titleSize.width;
}
#else
// XCODE4
CGSize titleSize = [title sizeWithFont:self.myFont];
titleW = titleSize.width;
#endif
具体如何重写的实现自定义图片在右边的button
看NYTitleButton.m(在上面)
这个没啥好说的,就是开始定义一个view,然后设置hidden 看代码
懒加载contentView 并且在开始调用的适合(viewDidLoad)中设置隐藏。
/**懒加载,点击标题弹出的view*/
-(UIView *)contentView
{
if (_contentView == nil) {
// 添加将来需要显示的View
UIView *contentView = [[UIView alloc] init];
contentView.backgroundColor = [UIColor greenColor];
contentView.frame = CGRectMake(0, 64, 320, 200);
[self.view addSubview:contentView];
_contentView = contentView;
// 隐藏该View
}
return _contentView;
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.contentView.hidden = YES;
}
在点击按钮时候设置隐藏为no或yes,这里加了两个动画而已
- (IBAction)titleBtnOnClick:(NYTitleButton *)titleBtn {
if (!self.isOpen) {// 没有打开
[UIView animateWithDuration:1.0 animations:^{
// 1.旋转按钮上的尖尖
titleBtn.imageView.transform = CGAffineTransformMakeRotation(M_PI);
}];
// 改变当前按钮的状态
CATransition *ca = [CATransition animation];
ca.type = @"cube";
[self.contentView.layer addAnimation:ca forKey:nil];
self.open = YES;
// 显示内容view
self.contentView.hidden = NO;
}else // 已经打开
{
[UIView animateWithDuration:1.0 animations:^{
// 1.旋转按钮上的尖尖
titleBtn.imageView.transform = CGAffineTransformIdentity;
}];
// 改变当前按钮的状态
//添加动画
CATransition *ca = [CATransition animation];
ca.type = @"cube";
[self.contentView.layer addAnimation:ca forKey:nil];
self.open = NO;
// 隐藏内容View
self.contentView.hidden = YES;
}
}
这个搜easy,在前面有http://blog.csdn.net/u013357243/article/details/45583423
//添加动画
CATransition *ca = [CATransition animation];
ca.type = @"cube";
[self.contentView.layer addAnimation:ca forKey:nil];
猫猫学iOS(四十四)之网易彩票自定义图片在右边的Button_弹出view_ios6,7简单适配
原文地址:http://blog.csdn.net/u013357243/article/details/45642609