总结的知识点
1.APP名字的更改
首先在info中找到Bundle name，改为自己的名字
2.APP图标的更改
在General中找到APPIcons and Launch Images更改APP icons source 将图标加到APPicon文件中需要将launch screen file 选项里面去掉，更改launch image source 将启动页图片加入Launchimage
3.UInavigationBar的appearance方法的使用
// 通过appearance统一设置所有UITabBarItem的文字属性
// 后面带有UI_APPEARANCE_SELECTOR的方法, 都可以通appearance对象来统一设置
NSMutableDictionary *attrs = [NSMutableDictionary dictionary];
attrs[NSFontAttributeName] = [UIFont systemFontOfSize:12];
attrs[NSForegroundColorAttributeName] = [UIColor grayColor];
NSMutableDictionary *selectedAttrs = [NSMutableDictionary dictionary];
selectedAttrs[NSFontAttributeName] = attrs[NSFontAttributeName];
selectedAttrs[NSForegroundColorAttributeName] = [UIColor darkGrayColor];
UITabBarItem *item = [UITabBarItem appearance];
[item setTitleTextAttributes:attrs forState:UIControlStateNormal];
[item setTitleTextAttributes:selectedAttrs forState:UIControlStateSelected];
4.UItarBarController初始化子控制器的封装
,需要继承自
UItarBarController
- (void)setupChildVc:(UIViewController *)vc title:(NSString *)title image:(NSString *)image selectedImage:(NSString *)selectedImage
{
// 设置文字和图片
vc.tabBarItem.title = title;
vc.tabBarItem.image = [UIImage imageNamed:image];
vc.tabBarItem.selectedImage = [UIImage imageNamed:selectedImage];
// 添加为子控制器
// [self addChildViewController:vc];
// 包装一个导航控制器
, 添加导航控制器为
tabbarcontroller的子控制器
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:vc];
[self addChildViewController:nav];
}
5.自定义
TarBar控件的子视图的布局是在方法中实现的
- (void)layoutSubviews
{
[super layoutSubviews];
}
定制TarBar上自带的button的位置需要以下代码
- (void)layoutSubviews
{
[super layoutSubviews];
for (UIView *button in self.subviews) {
//设置其他
UITabBarButton的frame不包括自定义的那个按钮
if (![button isKindOfClass:NSClassFromString(@"UITabBarButton")]) continue;
}
}
6.分类中属性的创建分类的创建source 找到objective-C File 选择category
在分类中声明@property, 只会生成方法的声明, 不会生成方法的实现和带有_下划线的成员变量需要自己创建setter方法和getter方法
#import <UIKit/UIKit.h>
@interface UIView (XMGExtension)
@property (nonatomic, assign) CGFloat width;
@property (nonatomic, assign) CGFloat height;
@property (nonatomic, assign) CGFloat x;
@property (nonatomic, assign) CGFloat y;
#import "UIView+XMGExtension.h"
@implementation UIView (XMGExtension)
- (void)setWidth:(CGFloat)width
{
CGRect frame = self.frame;
frame.size.width = width;
self.frame = frame;
}
- (void)setHeight:(CGFloat)height
{
CGRect frame = self.frame;
frame.size.height = height;
self.frame = frame;
}
- (void)setX:(CGFloat)x
{
CGRect frame = self.frame;
frame.origin.x = x;
self.frame = frame;
}
- (void)setY:(CGFloat)y
{
CGRect frame = self.frame;
frame.origin.y = y;
self.frame = frame；
}
- (CGFloat)width
{
return self.frame.size.width;
}
- (CGFloat)height
{
return self.frame.size.height;
}
- (CGFloat)x
{
return self.frame.origin.x;
}
- (CGFloat)y
{
return self.frame.origin.y;
}
@end
分类中属性创建也可以用runtime实现
#import <UIKit/UIKit.h>
typedef void(^completionhandler)();
@interface UIControl (addBlock)
-(void)addActionforControlEvents:(UIControlEvents )controlEvent withcompletionhandler:(completionhandler)handler;
@end
#import "UIControl+addBlock.h"
#import <objc/runtime.h>
static void *blockKye=@"blockKye";
@implementation UIControl (addBlock)
-(void)addActionforControlEvents:(UIControlEvents )controlEvent withcompletionhandler:(completionhandler)handler{
[self addTarget:self action:@selector(block) forControlEvents:controlEvent];
void(^block)()=^{
handler();
};
objc_setAssociatedObject(self, blockKye, block, OBJC_ASSOCIATION_COPY);
}
-(void)block{
void (^block)()=objc_getAssociatedObject(self, blockKye);
block();
}
@end
7.PCH文件的创建
新建一个pch，在other中找到PCH File
在build Settings 中找到prefix Header 修改文件路径
8.添加调试的日志输出宏添加到pch文件中
#ifdef DEBUG
//打印日志
#define AZLog(...) NSLog(__VA_ARGS__)
#else
#define AZLog(...)
#endif
//打印函数
#define AZLogFunc AZLog(@"%s", __func__)
#endif
9.UIBarButtonItem的封装 给他创建分类
#import <UIKit/UIKit.h>
@interface UIBarButtonItem (XMGExtension)
+ (instancetype)itemWithImage:(NSString *)image highImage:(NSString *)highImage target:(id)target action:(SEL)action;
@end
/////////////////////////////////////
#import "UIBarButtonItem+XMGExtension.h"
@implementation UIBarButtonItem (XMGExtension)
+ (instancetype)itemWithImage:(NSString *)image highImage:(NSString *)highImage target:(id)target action:(SEL)action
{
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setBackgroundImage:[UIImage imageNamed:image] forState:UIControlStateNormal];
[button setBackgroundImage:[UIImage imageNamed:highImage] forState:UIControlStateHighlighted];
button.size = button.currentBackgroundImage.size;
[button addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];
return [[self alloc] initWithCustomView:button];
}
@end
设置导航栏左边的按钮
// 设置导航栏左边的按钮
self.navigationItem.leftBarButtonItem = [UIBarButtonItem itemWithImage:@"imageName" highImage:@"higeImageName" target:self action:@selector(yourClincked)];
10.颜色创建的宏 放在pch文件中
#define AZRGBColor(r, g, b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0]
11.通过继承
UINavigationController重写方法
/*- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated
可以在这个方法中拦截所有push进来的控制器下面代码定制全局的返回键
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated
{
if (self.childViewControllers.count > 0) { // 如果
push进来的不是第一个控制器
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setTitle:@"返回
" forState:UIControlStateNormal];
[button setImage:[UIImage imageNamed:@"navigationButtonReturn"] forState:UIControlStateNormal];
[button setImage:[UIImage imageNamed:@"navigationButtonReturnClick"] forState:UIControlStateHighlighted];
button.size = CGSizeMake(70, 30);
// 让按钮内部的所有内容左对齐
button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
// [button sizeToFit];
// 让按钮的内容往左边偏移
10
button.contentEdgeInsets = UIEdgeInsetsMake(0, -10, 0, 0);
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[button setTitleColor:[UIColor redColor] forState:UIControlStateHighlighted];
[button addTarget:self action:@selector(back) forControlEvents:UIControlEventTouchUpInside];
viewController.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:button];
// 隐藏
tabbarviewController.hidesBottomBarWhenPushed = YES;
}
// 这句
super的push要放在后面, viewController可以覆盖上面设置的leftBarButtonItem
[super pushViewController:viewController animated:animated];
}
- (void)back
{
[self popViewControllerAnimated:YES];
}
12.cell是否选中，选中后的回调方法，可以用于选中某个cell后cell的视图变化，比如选中某个cell的时候字体的颜色改变
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
self.selectedIndicator.hidden = !selected;
self.textLabel.textColor = selected ? self.selectedIndicator.backgroundColor : AZRGBColor(78, 78, 78);
}
