********HWDiscoverViewController.m（发现）
- (void)viewDidLoad
{
[super viewDidLoad]; // 创建搜索框对象
HWSearchBar *searchBar = [HWSearchBar searchBar];
searchBar.width = ;
searchBar.height = ;
self.navigationItem.titleView = searchBar; //设置titleView 是搜索框
}
HWSearchBar.m
#import "HWSearchBar.h" @implementation HWSearchBar - (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
self.font = [UIFont systemFontOfSize:];
self.placeholder = @"请输入搜索条件"; //hit的提示信息
self.background = [UIImage imageNamed:@"searchbar_textfield_background"]; // 通过init来创建初始化绝大部分控件，控件都是没有尺寸
UIImageView *searchIcon = [[UIImageView alloc] init];
searchIcon.image = [UIImage imageNamed:@"searchbar_textfield_search_icon"];
searchIcon.width = ;
searchIcon.height = ;
searchIcon.contentMode = UIViewContentModeCenter; //居中
self.leftView = searchIcon;
self.leftViewMode = UITextFieldViewModeAlways;
}
return self;
} + (instancetype)searchBar
{
return [[self alloc] init];
} @end
HWSearchBar.h
#import <UIKit/UIKit.h> @interface HWSearchBar : UITextField
+ (instancetype)searchBar;
@end
**************HWHomeViewController.m(弹出下拉菜单)主页面
#import "HWHomeViewController.h"
#import "HWDropdownMenu.h"
#import "HWTitleMenuViewController.h" @interface HWHomeViewController () <HWDropdownMenuDelegate> @end @implementation HWHomeViewController - (void)viewDidLoad
{
[super viewDidLoad]; /* 设置导航栏上面的内容 */
self.navigationItem.leftBarButtonItem = [UIBarButtonItem itemWithTarget:self action:@selector(friendSearch) image:@"navigationbar_friendsearch" highImage:@"navigationbar_friendsearch_highlighted"]; self.navigationItem.rightBarButtonItem = [UIBarButtonItem itemWithTarget:self action:@selector(pop) image:@"navigationbar_pop" highImage:@"navigationbar_pop_highlighted"]; /* 中间的标题按钮 */
// UIButton *titleButton = [UIButton buttonWithType:UIButtonTypeCustom];
UIButton *titleButton = [[UIButton alloc] init];
titleButton.width = ;
titleButton.height = ;
// titleButton.backgroundColor = HWRandomColor; // 设置图片和文字
[titleButton setTitle:@"首页" forState:UIControlStateNormal];
[titleButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
titleButton.titleLabel.font = [UIFont boldSystemFontOfSize:];
[titleButton setImage:[UIImage imageNamed:@"navigationbar_arrow_down"] forState:UIControlStateNormal];
[titleButton setImage:[UIImage imageNamed:@"navigationbar_arrow_up"] forState:UIControlStateSelected];
// titleButton.imageView.backgroundColor = [UIColor redColor];
// titleButton.titleLabel.backgroundColor = [UIColor blueColor];
titleButton.imageEdgeInsets = UIEdgeInsetsMake(, , , ); // 距离左边
titleButton.titleEdgeInsets = UIEdgeInsetsMake(, , , ); // 距离右边 // 监听标题点击
[titleButton addTarget:self action:@selector(titleClick:) forControlEvents:UIControlEventTouchUpInside]; self.navigationItem.titleView = titleButton;
// 如果图片的某个方向上不规则，比如有突起，那么这个方向就不能拉伸
} /**
* 标题点击
*/
- (void)titleClick:(UIButton *)titleButton
{
// 1.创建下拉菜单
HWDropdownMenu *menu = [HWDropdownMenu menu];
menu.delegate = self; // 2.设置内容
HWTitleMenuViewController *vc = [[HWTitleMenuViewController alloc] init];
vc.view.height = ;
vc.view.width = ;
menu.contentController = vc; // 3.显示
[menu showFrom:titleButton];
} - (void)friendSearch
{
NSLog(@"friendSearch");
} - (void)pop
{
NSLog(@"pop");
} #pragma mark - HWDropdownMenuDelegate
/**
* 下拉菜单被销毁了
*/
- (void)dropdownMenuDidDismiss:(HWDropdownMenu *)menu
{
UIButton *titleButton = (UIButton *)self.navigationItem.titleView;
titleButton.selected = NO;
// 让箭头向下
// [titleButton setImage:[UIImage imageNamed:@"navigationbar_arrow_down"] forState:UIControlStateNormal];
} /**
* 下拉菜单显示了
*/
- (void)dropdownMenuDidShow:(HWDropdownMenu *)menu
{
UIButton *titleButton = (UIButton *)self.navigationItem.titleView;
titleButton.selected = YES;
// 让箭头向上
// [titleButton setImage:[UIImage imageNamed:@"navigationbar_arrow_up"] forState:UIControlStateNormal];
} #pragma mark - Table view data source - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
#warning Potentially incomplete method implementation.
// Return the number of sections.
return ;
} - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
#warning Incomplete method implementation.
// Return the number of rows in the section.
return ;
} @end
********************HWDropdownMenu.m(菜单的view)
#import "HWDropdownMenu.h"
@interface HWDropdownMenu()
/**
* 将来用来显示具体内容的容器
*/
@property (nonatomic, weak) UIImageView *containerView;
@end @implementation HWDropdownMenu - (UIImageView *)containerView
{
if (!_containerView) {
// 添加一个灰色图片控件
UIImageView *containerView = [[UIImageView alloc] init];
containerView.image = [UIImage imageNamed:@"popover_background"]; //黑色背景图片
containerView.userInteractionEnabled = YES; // 开启交互
[self addSubview:containerView];
self.containerView = containerView;
}
return _containerView;
} - (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// 清除颜色
self.backgroundColor = [UIColor clearColor];
}
return self;
} + (instancetype)menu
{
return [[self alloc] init];
} - (void)setContent:(UIView *)content
{
_content = content; // 调整内容的位置
content.x = ;
content.y = ; // 调整内容的宽度
// content.width = self.containerView.width - 2 * content.x; // 设置灰色的高度
self.containerView.height = CGRectGetMaxY(content.frame) + ;
// 设置灰色的宽度
self.containerView.width = CGRectGetMaxX(content.frame) + ; // 添加内容到灰色图片中
[self.containerView addSubview:content];
} - (void)setContentController:(UIViewController *)contentController
{
_contentController = contentController; self.content = contentController.view;
} /**
* 显示
*/
- (void)showFrom:(UIView *)from
{
// 1.获得最上面的窗口
UIWindow *window = [[UIApplication sharedApplication].windows lastObject]; // 2.添加自己到窗口上
[window addSubview:self]; // 3.设置尺寸
self.frame = window.bounds; // 4.调整灰色图片的位置
// 默认情况下，frame是以父控件左上角为坐标原点
// 转换坐标系
CGRect newFrame = [from convertRect:from.bounds toView:window];
// CGRect newFrame = [from.superview convertRect:from.frame toView:window];
self.containerView.centerX = CGRectGetMidX(newFrame);
self.containerView.y = CGRectGetMaxY(newFrame); // 通知外界，自己显示了
if ([self.delegate respondsToSelector:@selector(dropdownMenuDidShow:)]) {
[self.delegate dropdownMenuDidShow:self];
}
} /**
* 销毁
*/
- (void)dismiss
{
[self removeFromSuperview]; // 通知外界，自己被销毁了
if ([self.delegate respondsToSelector:@selector(dropdownMenuDidDismiss:)]) {
[self.delegate dropdownMenuDidDismiss:self];
}
} - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[self dismiss];
}
@end
HWDropdownMenu.h
#import <UIKit/UIKit.h> @class HWDropdownMenu; @protocol HWDropdownMenuDelegate <NSObject>
@optional
- (void)dropdownMenuDidDismiss:(HWDropdownMenu *)menu;
- (void)dropdownMenuDidShow:(HWDropdownMenu *)menu;
@end @interface HWDropdownMenu : UIView
@property (nonatomic, weak) id<HWDropdownMenuDelegate> delegate; //代理 + (instancetype)menu; /**
* 显示
*/
- (void)showFrom:(UIView *)from;
/**
* 销毁
*/
- (void)dismiss; /**
* 内容
*/
@property (nonatomic, strong) UIView *content;
/**
* 内容控制器
*/
@property (nonatomic, strong) UIViewController *contentController;
@end
*********HWTitleMenuViewController //弹出窗体里面的view
#import "HWTitleMenuViewController.h" @interface HWTitleMenuViewController () @end @implementation HWTitleMenuViewController - (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
} - (void)viewDidLoad
{
[super viewDidLoad]; // Uncomment the following line to preserve selection between presentations.
// self.clearsSelectionOnViewWillAppear = NO; // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem;
} - (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
} #pragma mark - Table view data source
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return ;
} - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *ID = @"cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:ID];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:ID];
} if (indexPath.row == ) {
cell.textLabel.text = @"好友";
} else if (indexPath.row == ) {
cell.textLabel.text = @"密友";
} else if (indexPath.row == ) {
cell.textLabel.text = @"全部";
} return cell;
}
@end
**********HWTabBarViewController.m
#import "HWTabBarViewController.h"
#import "HWHomeViewController.h"
#import "HWMessageCenterViewController.h"
#import "HWDiscoverViewController.h"
#import "HWProfileViewController.h"
#import "HWNavigationController.h"
#import "HWTabBar.h" @interface HWTabBarViewController () <HWTabBarDelegate> @end @implementation HWTabBarViewController - (void)viewDidLoad
{
[super viewDidLoad]; // 1.初始化子控制器
HWHomeViewController *home = [[HWHomeViewController alloc] init];
[self addChildVc:home title:@"首页" image:@"tabbar_home" selectedImage:@"tabbar_home_selected"]; HWMessageCenterViewController *messageCenter = [[HWMessageCenterViewController alloc] init];
[self addChildVc:messageCenter title:@"消息" image:@"tabbar_message_center" selectedImage:@"tabbar_message_center_selected"]; HWDiscoverViewController *discover = [[HWDiscoverViewController alloc] init];
[self addChildVc:discover title:@"发现" image:@"tabbar_discover" selectedImage:@"tabbar_discover_selected"]; HWProfileViewController *profile = [[HWProfileViewController alloc] init];
[self addChildVc:profile title:@"我" image:@"tabbar_profile" selectedImage:@"tabbar_profile_selected"]; // 2.更换系统自带的tabbar
// self.tabBar = [[HWTabBar alloc] init];
HWTabBar *tabBar = [[HWTabBar alloc] init];
tabBar.delegate = self; //代理
[self setValue:tabBar forKeyPath:@"tabBar"];
// self.tabBar = tabBar; // Person *p = [[Person allooc] init];
// p.name = @"jack";
// [p setValue:@"jack" forKeyPath:@"name"];
} //- (void)viewDidAppear:(BOOL)animated
//{
// [super viewDidAppear:animated];
//
// int count = self.tabBar.subviews.count;
// for (int i = 0; i<count; i++) {
// UIView *child = self.tabBar.subviews[i];
// Class class = NSClassFromString(@"UITabBarButton");
// if ([child isKindOfClass:class]) {
// child.width = self.tabBar.width / count;
// }
// }
//} /**
* 添加一个子控制器
*
* @param childVc 子控制器
* @param title 标题
* @param image 图片
* @param selectedImage 选中的图片
*/
- (void)addChildVc:(UIViewController *)childVc title:(NSString *)title image:(NSString *)image selectedImage:(NSString *)selectedImage
{
// 设置子控制器的文字
childVc.title = title; // 同时设置tabbar和navigationBar的文字 //两个一起设置
// childVc.tabBarItem.title = title; // 设置tabbar的文字
// childVc.navigationItem.title = title; // 设置navigationBar的文字 // 设置子控制器的图片
childVc.tabBarItem.image = [UIImage imageNamed:image];
childVc.tabBarItem.selectedImage = [[UIImage imageNamed:selectedImage]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]; // 设置文字的样式
NSMutableDictionary *textAttrs = [NSMutableDictionary dictionary];
textAttrs[NSForegroundColorAttributeName] = HWColor(, , );
NSMutableDictionary *selectTextAttrs = [NSMutableDictionary dictionary];
selectTextAttrs[NSForegroundColorAttributeName] = [UIColor orangeColor];
[childVc.tabBarItem setTitleTextAttributes:textAttrs forState:UIControlStateNormal]; //默认的文字颜色
[childVc.tabBarItem setTitleTextAttributes:selectTextAttrs forState:UIControlStateSelected];
// childVc.view.backgroundColor = HWRandomColor; // 先给外面传进来的小控制器 包装 一个导航控制器
HWNavigationController *nav = [[HWNavigationController alloc] initWithRootViewController:childVc];
// 添加为子控制器
[self addChildViewController:nav];
} #pragma mark - HWTabBarDelegate代理方法
- (void)tabBarDidClickPlusButton:(HWTabBar *)tabBar
{
UIViewController *vc = [[UIViewController alloc] init];
vc.view.backgroundColor = [UIColor redColor];
[self presentViewController:vc animated:YES completion:nil];
} @end
****************HWTabBar.h（自定义TabBar）
#import "HWTabBar.h" @interface HWTabBar()
@property (nonatomic, weak) UIButton *plusBtn;
@end @implementation HWTabBar - (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// 添加一个按钮到tabbar中
UIButton *plusBtn = [[UIButton alloc] init];
[plusBtn setBackgroundImage:[UIImage imageNamed:@"tabbar_compose_button"] forState:UIControlStateNormal];
[plusBtn setBackgroundImage:[UIImage imageNamed:@"tabbar_compose_button_highlighted"] forState:UIControlStateHighlighted];
[plusBtn setImage:[UIImage imageNamed:@"tabbar_compose_icon_add"] forState:UIControlStateNormal];
[plusBtn setImage:[UIImage imageNamed:@"tabbar_compose_icon_add_highlighted"] forState:UIControlStateHighlighted];
plusBtn.size = plusBtn.currentBackgroundImage.size;
[plusBtn addTarget:self action:@selector(plusClick) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:plusBtn];
self.plusBtn = plusBtn;
}
return self;
} /**
* 加号按钮点击
*/
- (void)plusClick //通知代理
{
// 通知代理
if ([self.delegate respondsToSelector:@selector(tabBarDidClickPlusButton:)]) {
[self.delegate tabBarDidClickPlusButton:self];
}
} - (void)layoutSubviews
{
#warning [super layoutSubviews] 一定要调用
[super layoutSubviews]; // 1.设置加号按钮的位置
self.plusBtn.centerX = self.width * 0.5;
self.plusBtn.centerY = self.height * 0.5; // 2.设置其他tabbarButton的位置和尺寸
CGFloat tabbarButtonW = self.width / ;
CGFloat tabbarButtonIndex = ;
for (UIView *child in self.subviews) {
Class class = NSClassFromString(@"UITabBarButton");
if ([child isKindOfClass:class]) { //如果是UITabBarButton
// 设置宽度
child.width = tabbarButtonW;
// 设置x
child.x = tabbarButtonIndex * tabbarButtonW; // 增加索引
tabbarButtonIndex++;
if (tabbarButtonIndex == ) {
tabbarButtonIndex++;
}
}
} // int count = self.subviews.count;
// for (int i = 0; i<count; i++) {
// UIView *child = self.subviews[i];
// Class class = NSClassFromString(@"UITabBarButton");
// if ([child isKindOfClass:class]) {
// // 设置宽度
// child.width = tabbarButtonW;
// // 设置x
// child.x = tabbarButtonIndex * tabbarButtonW;
//
// // 增加索引
// tabbarButtonIndex++;
// if (tabbarButtonIndex == 2) {
// tabbarButtonIndex++;
// }
// }
// }
} @end
****************HWTabBar.h（自定义TabBar）
#import <UIKit/UIKit.h> @class HWTabBar; #warning 因为HWTabBar继承自UITabBar，所以称为HWTabBar的代理，也必须实现UITabBar的代理协议
@protocol HWTabBarDelegate <UITabBarDelegate>
@optional
- (void)tabBarDidClickPlusButton:(HWTabBar *)tabBar;
@end @interface HWTabBar : UITabBar
@property (nonatomic, weak) id<HWTabBarDelegate> delegate;
@end