小知识:
1.UIBarButtonItem:描述按钮具体的内容
2.UINavigationItem:设置导航条上的内容（左边，右边，中间）
3.tabBarItem:设置tabBar上的按钮内容（tabBarButton）
左右item
问题：
-
UIButton包装成UIBarButtonItem就会导致点击区域扩大
点击区域扩大
应该包装成UIVIew在进行添加
包装成UIVIew
效果图 -
扩展类UIBarButtonItem-代码如下
UIBarButtonItem+ZYExtension.h
#import <UIKit/UIKit.h>
@interface UIBarButtonItem (ZYExtension)
+ (instancetype)itemWithNorImage:(NSString *)image highImage:(NSString *)highImage target:(id)target action:(SEL)action;
@end
UIBarButtonItem+ZYExtension.m
#import "UIBarButtonItem+ZYExtension.h"
@implementation UIBarButtonItem (ZYExtension)
+ (instancetype)itemWithNorImage:(NSString *)image highImage:(NSString *)highImage target:(id)target action:(SEL)action
{
UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
[btn setImage:[UIImage imageNamed:image] forState:UIControlStateNormal];
[btn setImage:[UIImage imageNamed:highImage] forSt ate:UIControlStateHighlighted];
[btn sizeToFit];
[btn addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];
UIView *containVew = [[UIView alloc] initWithFrame:btn.bounds];
[containVew addSubview:btn];
return [[UIBarButtonItem alloc]initWithCustomView:containVew];
}
使用方法:(例如)
self.navigationItem.leftBarButtonItem = [UIBarButtonItem itemWithNorImage:@"nav_item_game_icon" highImage:@"nav_item_game_click_icon" target:self action:@selector(game)];
设置导航条标题
- 只要通过模型设置，都需要通过付文本设置
- 设置导航条标题
self.navigationItem.title = @"我的";
NSMutableDictionary *attrs = [NSMutableDictionary dictionary];
attrs[NSFontAttributeName] = [UIFont boldSystemFontOfSize:20];
[self.navigationController.navigationBar setTitleTextAttributes:attrs]; -
titleVIew
self.navigationItem.titleView = [[UIImageView alloc]initWithImage: [UIImage imageNamed:@"MainTitle"]];
片段代码：(调用)
- (void)setupNavBar
{
>
// 左边Item
self.navigationItem.leftBarButtonItem = [UIBarButtonItem
itemWithNorImage:@"nav_item_game_icon"
highImage:@"nav_item_game_click_icon"
target:self
action:@selector(game)];
// 右边Item
self.navigationItem.rightBarButtonItem = [UIBarButtonItem
itemWithNorImage:@"navigationButtonRandom"
highImage:@"navigationButtonRandomClick"
target:self
action:nil];
// 中间titleView
self.navigationItem.titleView = [[UIImageView alloc]initWithImage: [UIImage imageNamed:@"MainTitle"]];
}
- (void)setupNavBar{
// 设置
UIBarButtonItem *settingItem = [UIBarButtonItem itemWithNorImage:@"mine-setting-icon" highImage:@"mine-setting-icon-click" target:self action:@selector(setting:)];
// 夜间模式
UIBarButtonItem *nightItem = [UIBarButtonItem itemWithNorImage:@"mine-moon-icon" selImage:@"mine-moon-icon-click" target:self action:@selector(night:)];
>
// 设置
self.navigationItem.rightBarButtonItems = @[settingItem,nightItem];
// 只要通过模型设置，都需要通过富文本设置
// 设置导航条标题 ==> UINavigationBar
NSMutableDictionary *attrs = [NSMutableDictionary dictionary];
attrs[NSFontAttributeName] = [UIFont boldSystemFontOfSize:20];
[self.navigationController.navigationBar setTitleTextAttributes:attrs];
}
#pragma mark- 夜间模式以及设置点击事件
- (void)night:(UIButton *)btn{
// 选中状态-必须手动
btn.selected = !btn.selected;
}
- (void)setting:(UIButton *)btn{
}