1.自定义视图
流程:
1?? 新建一个类 继承于UIView
2?? 将控件写成view的属性
3?? .m初始化
4?? 直接在类外引入头文件 调用
5?? 注意: 建议不要把控件的初始化写在系统的初始化方法里直接用self调方法 自己封装方法
2.视图控制器指定自定义View
新建ViewController就是MVC(Mode(模型) View(视图) Controller(模型和视图两者的联系))设计模式的体现
3.检测屏幕旋转
1??:ViewController.m
- (NSUInteger)supportedInterfaceOrientations
{
// portrait 竖着
// portraitupsidedown上下颠倒竖着
// landscape left 横着 左
// landscape right 横着 右
return UIInterfaceOrientationMaskAll;
}
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration{
NSLog(@"将要旋转");
}
- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation{
NSLog(@"已经完成旋转");
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
}
2??:View.m
- (instancetype)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
[self p_setupView];
}
return self;
}
- (void)p_setupView{
self.backgroundColor = [UIColor blackColor];
self.nameLabel = [[UILabel alloc]initWithFrame:CGRectMake(10, 100, 200, 300)];
// [[UIScreen mainScreen]bounds].size.width
_nameLabel.backgroundColor = [UIColor yellowColor];
[self addSubview:_nameLabel];}
// 当bounds改变时,需要重写layoutSubview的方法
- (void)layoutSubviews{
if ([UIApplication sharedApplication].statusBarOrientation ==UIInterfaceOrientationMaskPortrait || [UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortraitUpsideDown) {
_nameLabel.frame = CGRectMake(10, 100, 355, 200);
}else{
_nameLabel.frame = CGRectMake(50, 50, 300, 100);
}
}
4.处理内存警告
ViewController.m
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
//处理内存警告的方法
if ([self isViewLoaded] == YES && self.view.window == nil) {
self.view = nil;
}
}
5.容器视图控制器
ViewController.m
#import "RootViewController.h"
#import "RedViewController.h"
#import "BlueViewController.h"
@interface RootViewController ()
@property (nonatomic,retain)RedViewController *RedVC;
@property (nonatomic,retain)BlueViewController *BlueVC;
@end
@implementation RootViewController
- (void)viewWillAppear:(BOOL)animated{
NSLog(@"将要出现");
}
- (void)viewDidAppear:(BOOL)animated{
NSLog(@"已经出现");
}
- (void)viewWillDisappear:(BOOL)animated{
NSLog(@"将要消失");
}
- (void)viewDidDisappear:(BOOL)animated{
NSLog(@"已经消失");
}
- (void)viewDidLoad {
[super viewDidLoad];
NSLog(@"已经加载了");
_BlueVC = [[BlueViewController alloc]init];
_RedVC = [[RedViewController alloc]init];
[self addChildViewController:_BlueVC];
[self addChildViewController:_RedVC];
[self.view addSubview:_RedVC.view];
[self.view addSubview:_BlueVC.view];
UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
button.frame = CGRectMake(100, 100, 100, 100);
button.backgroundColor = [UIColor purpleColor];
[button addTarget:self action:@selector(buttonAction) forControlEvents:UIControlEventTouchUpInside];
[self.BlueVC.view addSubview:button];
}
- (void)buttonAction{
[self transitionFromViewController:self.BlueVC toViewController:self.RedVC duration:20 options:UIViewAnimationOptionTransitionFlipFromBottom animations:^{
} completion:^(BOOL finished) {
}];}
重点:
1??:AppDelegate.m
#import "AppDelegate.h"
#import "ZCHViewController.h"
@interface AppDelegate ()
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen]bounds]];
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
ZCHViewController *zchVC = [[ZCHViewController alloc]init];
self.window.rootViewController = zchVC;
return YES;
}
2??:ZCHViewController.m
#import "ZCHViewController.h"
#import "MyView.h"
@interface ZCHViewController ()
@property (nonatomic,retain)MyView *mv;
@end
@implementation ZCHViewController
// 必须把Controller 自带的view给替换掉
// 自己写的view,需要在Controller.m里区重写加载视图的方法(loadView)
// 加载视图
- (void)loadView{
self.mv = [[MyView alloc]initWithFrame:[[UIScreen alloc]bounds]];
self.view = _mv;
}
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor yellowColor];
}
3??:MyView.h
#import <UIKit/UIKit.h>
@interface MyView : UIView
@property (nonatomic,retain)UILabel *nameLabel;
@end
4??:MyView.m
#import "MyView.h"
@implementation MyView
- (instancetype)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
[self z_setupView];
}
return self;
}
- (void)z_setupView{
_nameLabel = [[UILabel alloc]initWithFrame:CGRectMake(100, 100, 100, 40)];
_nameLabel.backgroundColor = [UIColor grayColor];
[self addSubview:_nameLabel];
}
@end
进击的UI-----------------自定义视图&检测屏幕旋转&处理内存警告
原文：http://www.cnblogs.com/sharkHZ/p/4984137.html
