////  TitleSwitch.h//  TitleSwitch////  Created by YouXianMing on 14/11/4.//  Copyright (c) 2014年 YouXianMing. All rights reserved.//#import <UIKit/UIKit.h>/** * 使用细节 *  TitleSwitch *titleSwitch              = [[TitleSwitch alloc] initWithFrame:CGRectMake(0, 100, 320, 40)]; titleSwitch.titles                    = @[@"YouXianMing", @"NoZuoNoDie", @"BlueShit"]; titleSwitch.titleFont                 = [UIFont systemFontOfSize:15.f]; titleSwitch.lineWidth                 = 1.f; titleSwitch.canTouchOnlyButtonOneTime = YES; titleSwitch.delegate                  = self; [titleSwitch createTitleSwitchView];  [self.view addSubview:titleSwitch];  * * */@protocol TitleSwitchDelegate <NSObject>@optional- (void)willSelectIndex:(NSInteger)index;- (void)didSelectIndex:(NSInteger)index;@end@interface TitleSwitch : UIView/** *  协议 */@property (nonatomic, assign) id<TitleSwitchDelegate> delegate;/** *  作为按钮的标题 */@property (nonatomic, strong) NSArray  *titles;/** *  线的宽度 */@property (nonatomic, assign) CGFloat   lineWidth;/** *  线的颜色 */@property (nonatomic, strong) UIColor  *lineColor;/** *  标题字体 */@property (nonatomic, strong) UIFont   *titleFont;/** *  普通标题颜色 */@property (nonatomic, strong) UIColor  *normalTitleColor;/** *  选中标题的颜色 */@property (nonatomic, strong) UIColor  *selectedTitleColor;/** *  一次只能按一个按钮触发动画效果 */@property (nonatomic, assign) BOOL      canTouchOnlyButtonOneTime;/** *  开启按钮点击时高亮颜色的效果 & 高亮颜色 */@property (nonatomic, assign) BOOL      enableButtonTitleHighlighted;@property (nonatomic, strong) UIColor  *highlightedTitleColor;/** *  小横线条的X方向的位移值(可以设置动画) */@property (nonatomic, assign) CGFloat   linePositionX;/** *  根据linePositionX重设标题颜色 */- (void)resetTilte;/** *  创建TitleSwitch的view出来 */- (void)createTitleSwitchView;@end

////  TitleSwitch.m//  TitleSwitch////  Created by YouXianMing on 14/11/4.//  Copyright (c) 2014年 YouXianMing. All rights reserved.//#import "TitleSwitch.h"typedef enum : NSUInteger {    NORMAL_BUTTON = 0x11,    LINE_VIEW     = 0x1122,} ENUM_VIEWTAG;@implementation TitleSwitch- (void)createTitleSwitchView {        // 如果没有title,则直接返回    if (_titles.count == 0) {        return;    }        // 获取尺寸    CGFloat frameWidth  = self.bounds.size.width;    CGFloat frameHeight = self.bounds.size.height;        // 计算按钮的宽度&高度    CGFloat buttonWidth      = frameWidth / _titles.count;    CGFloat buttonHeight     = 0;    CGFloat defaultLineWidth = 2.f;    if (_lineWidth == 0) {        buttonHeight = frameHeight - defaultLineWidth; // 默认线条占用一个像素    } else {        buttonHeight = frameHeight - _lineWidth;    }        // 初始化所有按钮    for (int i = 0; i < _titles.count; i++) {        UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(buttonWidth * i,                                                                      0,                                                                      buttonWidth,                                                                      buttonHeight)];        button.tag       = NORMAL_BUTTON + i;        [self addSubview:button];                [button setTitle:_titles[i] forState:UIControlStateNormal];                // 普通颜色        if (i == 0) {            [self selectButtonStyle:button];        } else {            [self normalButtonStyle:button];        }                // 高亮颜色        if (_enableButtonTitleHighlighted == YES && _highlightedTitleColor) {            [button setTitleColor:_highlightedTitleColor forState:UIControlStateHighlighted];        }        // 添加事件        [button addTarget:self action:@selector(buttonsEvent:) forControlEvents:UIControlEventTouchUpInside];                // 设置字体        if (_titleFont) {            button.titleLabel.font = _titleFont;        }    }        // 初始化横线view    UIView *lineView = [[UIView alloc] initWithFrame:CGRectMake(0, buttonHeight + 1, buttonWidth,                                                                (_lineWidth == 0 ? defaultLineWidth : _lineWidth))];    lineView.tag     = LINE_VIEW;    [self addSubview:lineView];    if (_lineColor) {        lineView.backgroundColor = _lineColor;    } else {        lineView.backgroundColor = [UIColor redColor];    }}/** *  按钮事件 * *  @param button 触摸事件中的按钮 */- (void)buttonsEvent:(UIButton *)button {    // 获取到lineView    UIView *lineView      = [self viewWithTag:LINE_VIEW];        // 哪一个button    NSInteger whichButton = button.tag - NORMAL_BUTTON;        // 计算按钮的宽度&高度    CGFloat frameWidth    = self.bounds.size.width;    CGFloat buttonWidth   = frameWidth / _titles.count;            [[self subviews] enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {        UIButton *tmp = (UIButton *)obj;        if ([tmp isKindOfClass:[UIButton class]]) {            if (tmp == button) {                [self selectButtonStyle:tmp];            } else {                [self normalButtonStyle:tmp];            }        }    }];            // 做动画    if (_canTouchOnlyButtonOneTime == YES) {        self.userInteractionEnabled = NO;    }        if (_delegate && [_delegate respondsToSelector:@selector(willSelectIndex:)]) {        [_delegate willSelectIndex:whichButton];    }        [UIView animateWithDuration:0.25f animations:^{        CGRect rect    = lineView.frame;        rect.origin.x  = whichButton * buttonWidth;        lineView.frame = rect;    } completion:^(BOOL finished) {        if (_canTouchOnlyButtonOneTime == YES) {            self.userInteractionEnabled = YES;        }                if (_delegate && [_delegate respondsToSelector:@selector(didSelectIndex:)]) {            [_delegate didSelectIndex:whichButton];        }    }];}/** *  选中按钮的样式 * *  @param button 按钮 */- (void)selectButtonStyle:(UIButton *)button {        if (_selectedTitleColor) {        [button setTitleColor:_selectedTitleColor                     forState:UIControlStateNormal];    } else {        [button setTitleColor:[UIColor redColor]                     forState:UIControlStateNormal];    }}/** *  普通按钮样式 * *  @param button 按钮 */- (void)normalButtonStyle:(UIButton *)button {        if (_normalTitleColor) {        [button setTitleColor:_normalTitleColor                     forState:UIControlStateNormal];    } else {        [button setTitleColor:[UIColor colorWithRed:0.369 green:0.369 blue:0.369 alpha:1]                     forState:UIControlStateNormal];    }}- (void)resetTilte {    // 获取尺寸    CGFloat frameWidth  = self.bounds.size.width;        // 计算按钮的宽度&高度    CGFloat buttonWidth      = frameWidth / _titles.count;    // 获取到位置    NSInteger index = _linePositionX / buttonWidth + 1;        [[self subviews] enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {                UIButton *tmp = (UIButton *)obj;        if ([tmp isKindOfClass:[UIButton class]]) {            if (idx == index) {                [self selectButtonStyle:tmp];            } else {                [self normalButtonStyle:tmp];            }        }    }];}#pragma mark - 重写各种setter,getter方法@synthesize linePositionX = _linePositionX;- (void)setLinePositionX:(CGFloat)linePositionX {    _linePositionX = linePositionX;        // 获取到lineView    UIView *lineView   = [self viewWithTag:LINE_VIEW];    if (lineView) {        CGRect rect    = lineView.frame;        rect.origin.x  = linePositionX;        lineView.frame = rect;    }}- (CGFloat)linePositionX {    return _linePositionX;}@end

////  WxHxD.h//  PM2.5////  Created by YouXianMing on 14/10/29.//  Copyright (c) 2014年 YouXianMing. All rights reserved.//#import <Foundation/Foundation.h>@interface WxHxD : NSObject/** *  应用程序中可以放置view的区间的高度(部分区域会被导航栏控制器的高度占有而不计算在类) * *  @return 高度 */+ (CGFloat)appHeight;/** *  屏幕高度 * *  @return 屏幕高度 */+ (CGFloat)screenHeight;/** *  屏幕宽度 * *  @return 屏幕宽度 */+ (CGFloat)screenWidth;/** *  状态栏高度 * *  @return 状态栏高度 */+ (CGFloat)statusBarHeight;/** *  导航栏控制器的高度 * *  @return 导航栏控制器的高度 */+ (CGFloat)navigationBarHeight;/** *  标签栏控制器的高度 * *  @return 标签栏控制器的高度 */+ (CGFloat)tabbarHeight;/** *  状态栏与导航栏控制器一起的高度 * *  @return 状态栏与导航栏控制器一起的高度 */+ (CGFloat)statusBarAndNavigationBarHeight;@end

////  WxHxD.m//  PM2.5////  Created by YouXianMing on 14/10/29.//  Copyright (c) 2014年 YouXianMing. All rights reserved.//#import "WxHxD.h"@implementation WxHxD+ (CGFloat)appHeight {    return [UIScreen mainScreen].applicationFrame.size.height;}+ (CGFloat)screenHeight {    return [UIScreen mainScreen].bounds.size.height;}+ (CGFloat)screenWidth {    return [UIScreen mainScreen].bounds.size.width;}+ (CGFloat)statusBarHeight {    return 20.f;}+ (CGFloat)navigationBarHeight {    return 44.f;}+ (CGFloat)tabbarHeight {    return 49.f;}+ (CGFloat)statusBarAndNavigationBarHeight {    return (20.f + 44.f);}@end

////  FirstController.m//  SwitchController////  Created by YouXianMing on 14/11/5.//  Copyright (c) 2014年 YouXianMing. All rights reserved.//#import "FirstController.h"@interface FirstController ()@end@implementation FirstController- (void)viewDidLoad {    [super viewDidLoad];        UILabel *label      = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 320, 40)];    label.center        = self.view.center;    label.text          = @"FirstController";    label.font          = [UIFont fontWithName:@"HelveticaNeue-Thin" size:35.f];    label.textAlignment = NSTextAlignmentCenter;    [self.view addSubview:label];}@end

////  SecondController.m//  SwitchController////  Created by YouXianMing on 14/11/5.//  Copyright (c) 2014年 YouXianMing. All rights reserved.//#import "SecondController.h"@interface SecondController ()@end@implementation SecondController- (void)viewDidLoad {    [super viewDidLoad];        UILabel *label      = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 320, 40)];    label.center        = self.view.center;    label.text          = @"SecondController";    label.font          = [UIFont fontWithName:@"HelveticaNeue-Thin" size:35.f];    label.textAlignment = NSTextAlignmentCenter;        [self.view addSubview:label];}@end

////  ViewController.m//  SwitchController////  Created by YouXianMing on 14/11/5.//  Copyright (c) 2014年 YouXianMing. All rights reserved.//#import "ViewController.h"#import "TitleSwitch.h"#import "WxHxD.h"#import "FirstController.h"#import "SecondController.h"@interface ViewController ()<TitleSwitchDelegate, UIScrollViewDelegate>{    TitleSwitch  *titleSwitch;}@property (nonatomic, strong) UIScrollView *mainScrollView; // 滑动用的ScrollView@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];     // 隐藏状态栏(需要先设置plist文件)    [UIApplication sharedApplication].statusBarHidden = YES; // 关闭状态栏        // 初始化UIScrollView    [self initScrollView];        // 初始化标签控制器    [self initTitleSwitch];        // 初始化两个控制器    FirstController *first  = [FirstController new];    [self addChildViewController:first];  // 将控制器first变为当前控制器的子控制器    CGRect firstRect        = first.view.frame;    firstRect.origin.x      = [WxHxD screenWidth] * 0; // view值偏移量为 0*screenWidth    first.view.frame        = firstRect;        SecondController *second = [SecondController new];    [self addChildViewController:second]; // 将控制器second变为当前控制器的子控制器    CGRect secondRect        = second.view.frame;    secondRect.origin.x      = [WxHxD screenWidth] * 1; // view值偏移量为 1*screenWidth    second.view.frame        = secondRect;            // 加载控制器的view    [_mainScrollView addSubview:first.view];    [_mainScrollView addSubview:second.view];}/** *  初始化UIScrollView */- (void)initScrollView {    // 当前显示艺术品的控制器    _mainScrollView = [[UIScrollView alloc] initWithFrame:self.view.bounds];    _mainScrollView.contentSize   = CGSizeMake([WxHxD screenWidth] * 2, [WxHxD screenHeight]);    _mainScrollView.pagingEnabled = YES;    _mainScrollView.delegate      = self;    _mainScrollView.bounces       = NO;    _mainScrollView.showsHorizontalScrollIndicator = NO;    [self.view addSubview:_mainScrollView];}#pragma mark - UIScrollView的代理- (void)scrollViewDidScroll:(UIScrollView *)scrollView {    titleSwitch.linePositionX = scrollView.contentOffset.x / 2.f;}- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {    [titleSwitch resetTilte];}/** *  初始化标签控制器 */- (void)initTitleSwitch {    // 标题切换用    titleSwitch              = [[TitleSwitch alloc] initWithFrame:CGRectMake(0, 0, [WxHxD screenWidth], 40)];    titleSwitch.tag          = 0x112244;        // 添加灰色的线条    UIView *grayLine = [[UIView alloc] initWithFrame:CGRectMake(0, 40, [WxHxD screenWidth], 1)];    grayLine.backgroundColor = [UIColor colorWithRed:0.827 green:0.827 blue:0.827 alpha:1];    [titleSwitch addSubview:grayLine];        titleSwitch.backgroundColor           = [UIColor colorWithRed:0.949 green:0.949 blue:0.949 alpha:1];    titleSwitch.selectedTitleColor        = [UIColor colorWithRed:0.843 green:0.000 blue:0.000 alpha:1];    titleSwitch.titles                    = @[@"YouXianMing",                                              @"NoZuoNoDie"];    titleSwitch.lineWidth                 = 1.f;    titleSwitch.titleFont                 = [UIFont systemFontOfSize:15.f];    titleSwitch.canTouchOnlyButtonOneTime = YES;    titleSwitch.delegate                  = self;    [titleSwitch createTitleSwitchView];    [self.view addSubview:titleSwitch];}#pragma mark - TitleSwitch的代理- (void)willSelectIndex:(NSInteger)index {    if (index == 0) {                CGPoint point = _mainScrollView.contentOffset;        point.x       = 0;        [UIView animateWithDuration:0.25f animations:^{            _mainScrollView.contentOffset = point;        }];                [self bringTitleToFrount];            } else {        CGPoint point = _mainScrollView.contentOffset;        point.x       = [WxHxD screenWidth];        [UIView animateWithDuration:0.25f animations:^{            _mainScrollView.contentOffset = point;        }];                [self bringTitleToFrount];    }}/** *  将标题提到最前面 */- (void)bringTitleToFrount {    UIView *tmpView = [self.view viewWithTag:0x112244];    [self.view bringSubviewToFront:tmpView];}@end