self.view.backgroundColor = [UIColor redColor];
// 导航栏设置: controller(栏)/item(栏上的元素)
// 导航栏显示/隐藏
self.navigationController.navigationBarHidden = NO;
// self.navigationController.navigationBar.hidden = YES;
// 栏样式
self.navigationController.navigationBar.barStyle = UIBarStyleBlack;
// 半透明效果
// 开始效果时 屏幕左上角为坐标原点
// 关闭时 导航栏的左下角为坐标原点
self.navigationController.navigationBar.translucent = YES;
// 创建view(0,0,100,100)
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
view.backgroundColor = [UIColor greenColor];
[self.view addSubview:view];
[view release];
// 栏背景颜色
self.navigationController.navigationBar.backgroundColor = [UIColor yellowColor];
// 栏颜色
self.navigationController.navigationBar.barTintColor = [UIColor grayColor];
// 栏标题
self.title = @"这是一个标题";
// self.navigationItem.title = @"这是一个猴赛雷的标题";
// 分段
UISegmentedControl *seg = [[[UISegmentedControl alloc] initWithItems:@[@"消息", @"电话"]] autorelease];
seg.frame = CGRectMake(0, 0, 100, 30);
// 栏标题视图
self.navigationItem.titleView = seg;
// 栏左侧按钮
self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:self action:@selector(left:)] autorelease];
// 栏右侧按钮
// 系统按钮样式
UIBarButtonItem *b1 = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemTrash target:self action:@selector(right1)] autorelease];
// 自定义按钮图片
UIBarButtonItem *b2 = [[[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"dianzan"] style:UIBarButtonItemStylePlain target:self action:@selector(right2)] autorelease];
self.navigationItem.rightBarButtonItems = @[b1, b2];
// 修改导航栏上内容的颜色
self.navigationController.navigationBar.tintColor = [UIColor whiteColor];
// 跳转页面
UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
btn.frame = CGRectMake(200, 200, 100, 100);
btn.backgroundColor = [UIColor yellowColor];
[self.view addSubview:btn];
[btn addTarget:self action:@selector(goTwo) forControlEvents:UIControlEventTouchUpInside];
}
#pragma mark - 跳转页面
- (void)goTwo
{
// 1.获取第二页对象
TwoViewController *twoVC = [[TwoViewController alloc] init];
// 2.跳转(由导航控制器 从当前push到第二页)
[self.navigationController pushViewController:twoVC animated:YES];
// 3.内存管理
[twoVC release];
}
- (void)right1
{
NSLog(@"右1");
}
- (void)right2
{
NSLog(@"右2");
}
#pragma mark - 左按钮触发方法
- (void)left:(UIBarButtonItem *)left
{
NSLog(@"左点点");
}
界面间 传值
#import"RootViewController.h"
#import"TwoViewController.h"
#warning协议4:签协议
@interfaceRootViewController ()
@property(nonatomic,retain)UITextField*table;
@end
@implementationRootViewController
- (void)viewDidLoad {
[superviewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor= [UIColorwhiteColor];
self.navigationController.navigationBarHidden=NO;
self.navigationController.navigationBar.translucent=NO;
// self.navigationController.navigationBar.barStyle = UIBarStyleBlack;
self.title=@"首页";
self.table= [[UITextFieldalloc]initWithFrame:CGRectMake(60,30,260,40)];
self.table.backgroundColor= [UIColorwhiteColor];
[self.viewaddSubview:self.table];
[self.tablerelease];
self.table.layer.borderColor= [UIColorlightGrayColor].CGColor;
self.table.layer.borderWidth=1;
self.table.layer.cornerRadius=5;
UIButton*btn = [UIButtonbuttonWithType:UIButtonTypeSystem];
btn.frame=CGRectMake(60,120,260,40);
btn.backgroundColor= [UIColorredColor];
[self.viewaddSubview:btn];
[btn addTarget:selfaction:@selector(goFor) forControlEvents:UIControlEventTouchUpInside];
}
-(void)goFor{
TwoViewController*two = [[TwoViewControlleralloc]init];
#warning属性2:在push页面之前传值(创建对象之后push之前)
two.string=self.table.text;
#warning协议5:设置代理人
//为了保证设置代理人的对象和设置push对象是同一个在创建对象之后push之前设置delegate
two.delegate=self;
[self.navigationControllerpushViewController:twoanimated:YES];
[tworelease];
}
#warning协议6:实现协议方法
-(void)passValue:(NSString*)string{
//把收到的string赋值给输入框
self.table.text= string;
}
- (void)didReceiveMemoryWarning {
[superdidReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
*******************************************************************************
//
// TwoViewController.h
#import
#warning协议1:声明协议(定义一个带参数的方法)
@protocolPassDelegate
//必须要实现的@required(默认)
//@optional可选的
-(void)passValue:(NSString*)string;//需要传什么数据就设置什么属性
@end
@interfaceTwoViewController :UIViewController
#warning属性1:在第二页声明一个属性用来保存数据
@property(nonatomic,copy)NSString*string;
#warning协议2:定义代理人属性
@property(nonatomic,assign)iddelegate;
@end
*********************************************
TwoViewController.m
#import"TwoViewController.h"
@interfaceTwoViewController()
@property(nonatomic,retain)UITextField*table2;
@end
@implementationTwoViewController
- (void)viewDidLoad {
[superviewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor= [UIColorwhiteColor];
self.title=@"第二页";
self.table2= [[UITextFieldalloc]initWithFrame:CGRectMake(60,30,260,40)];
self.table2.backgroundColor= [UIColorwhiteColor];
[self.viewaddSubview:self.table2];
[self.table2release];
self.table2.layer.borderColor= [UIColorlightGrayColor].CGColor;
self.table2.layer.borderWidth=1;
self.table2.layer.cornerRadius=5;
UIButton*btn = [UIButtonbuttonWithType:UIButtonTypeSystem];
btn.frame=CGRectMake(60,120,260,40);
btn.backgroundColor= [UIColorredColor];
[self.viewaddSubview:btn];
[btnaddTarget:selfaction:@selector(goBack)forControlEvents:UIControlEventTouchUpInside];
#warning属性3:通过属性给当前页面赋值
self.table2.text=self.string;
}
-(void)goBack{
#warning协议3:返回上一页之前代理人调用协议方法
[self.delegatepassValue:self.table2.text];//self.delegate相当于rootVC页面执行pass方法
[self.navigationControllerpopToRootViewControllerAnimated:YES];
}
