iosiphone开发入门教程源码和02ui设计基础

第二讲iOSUI设计基主要知识增强 o增强 o实例代码o实现步1.创 oWorld工2.修 3.修 创 oWorld工在Xcode中创建 oWorld工程，基于 OS->Application->View-based修 o-.h文钮点击，所以在h文件中我们要定义一个UITextField属性和一个响应方法。porto_WorldViewControllerUIViewController{UITextField*txtField;}@property(nonatomic,IBOutletUITextField修 o-.m文实现-(IBAction)onClickButton:(id)sender#import" @synthesizetxtField.text= o}(void)viewDidUnload{self.txtField=nil;}(void)dealloc{[txtFieldrelease];[superdealloc];}使用IB设计页面，摆放控 连接输出为了将控件属性通过屏幕“输入”或“输出”，@property(nonatomic,retain)IBOutletUITextField*txtField;能在屏幕中使用的处为了响应控件的 -在 File’sOwner代表控制器类。MVC设计模MVC是解决具有UI的应用系统的成熟解决方案，M－Model（模型）是应用系统中与视图对于部分V－View（视图）是应用系统中用户看到并与之C－Controller（控制器）是应用系统中起到控制器作用，接受用户，显示数据等等，与视图CocoaMVC设计模式意味着，InterfaceBuilder不序的视图。MacCocoa绑定消除了大部分的黏合代码，它就像连接在Xcode编写的控制器和InterfaceBuilder设计的视图之间的一条线，用图InterfaceBuilderCocoa可以快速开发地您的CocoaFile's视图控制器的方-(id)initWithNibName:(NSString*)nibNameOrNilbundle:(NSBundle*)nibBundleOrNil------(id)initWithNibName:(NSString*)nibNameOrNilbundle:(NSBundle*)nibBundleOrNil------(-(void)viewDidUnload{self.txtField=nil;}--(void)dealloc{[txtFieldrelease];[superdealloc];}输出口和，需要定义动作输出口h文件o_WorldViewControllerUIViewController{UITextField*txtField;}@property(nonatomic,retain)IBOutletUITextField*txtField;mm文件@synthesize动作定义动作，是在ViewController定义一个方法，如-(IBAction)onClickButton:(id)sendertxtField.text= o}动作动作（Action）是在控件器中的方法，但它的返此方法是个Action，可以被某个触发。键盘输在 在 输入完成 实例代码实例代码 o修改文为关闭键盘添 -(IBAction)textFieldDoneEditing:(id)sender{[senderresignFirstResponder];}文本框对象的DidEndOnExit到File’s关闭键小[sender是使TextField控件放弃第一响应者状态通过触摸背景关闭键点击关闭键盘中的“return”关闭键盘比较麻烦， -(IBAction)backgroundTap:(id)sender{[txtField}实例代码实例代码 o连接动作为了使背景控件能够响应 从TouchDown拖到File’sOwner图标，然后点击背景关闭键键盘输入在中我们还可以指定键盘输入类型，可以是、 实实例程序键盘数字键键在键盘输入属性框中我们可以定义ReturnKey， （DidEndOn使用修 oWorld项目代码，添加实例代码o修 o-.m代-(IBAction)onClickButton:(id)sender//txtField.text= oNSString*str=[[NSString o.%@",txtField.text];UIAlertView*alert=[[UIAlertViewalloc] message:strdelegate:nil[alertshow];[alertrelease];[strrelease];}使用 为了使用ActionSheet我们需要在h文件中实现该方法是 o:<UIActionSheetDelegate>:<UIActionSheetDelegate>UITextField}在 //txtField.text= oUIActionSheet*actionSheet=[[UIActionSheet[actionSheetrelease];}-(void)actionSheet:(UIActionSheet*)actionSheetif(buttonIndex==[actionSheetdestructiveButtonIndex])txtField.text=}}等待有关实例代码实例代码UIActivity-@interface@interfaceUIActivityIndicatorViewController:UIViewControllerUIActivityIndicatorView*myActivityView;}@property(nonatomic,retain)IBOutlet*UIActivity-UIActivity-#import"UIActivityIndicatorViewController.h”@synthesizemyActivityView;-(IBAction)onClickButton:(id)sender{if([myActivityViewisAnimating]){[myActivityView}else[myActivityView}}-(void)dealloc{[myActivityViewrelease];[superdealloc];}实例代码@interfaceProgressViewViewController:UIViewController{UIProgressView*Progress;NSTimer}@property(nonatomic,retain)IBOutletUIProgressView*Progress;@property(nonatomic,assign)NSTimer@synthesizePgress=0.0;timer=[NSTimeruserInfo:nilrepeats:YES];}NSTimer是可以隐式地启动一个线程，Pgress=Pgress+0.1;if(Pgress==1.0){[timerUIAlertView*alert=[[UIAlertView[alertshow];[alertrelease];}}-(void)dealloc{[Progressrelease];[superdealloc];}屏幕旋中有重力感应我们可以通过旋转使屏实例代码实例代码 o屏幕旋转 开启旋可以通过 (UIInterfaceOrientation)interfaceOrientation{return}开启旋-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{return==||==}触发旋我们可以在屏幕旋转的时候触发很多 触发旋-{if(interfaceOrientation==||UIInterfaceOrientationPortraitUpsideDowntxtField.text=@"垂直显示。";}elsetxtField.text@"水平显示。}}自动调整由于屏幕旋转后，控件的位置会发生变化，我们通过“ControlSize”调整。横屏竖屏切换不同视纵屏

横屏例子新建工程工程Swap如下：进行编SwapViewController.h文#import#definedegreesToRadians(X)(M_PI*(x)/180.0)@interfaceSwapViewController:UIViewController{UIViewUIViewUIButton*landscapeFooButton;//FooUIButton*portraitFooButton;UIButton*landscapeBarButton;//BarUIButton*portraitBarButton;}@property(nonatomicretain)IBOutletUIView*landscape;@property(nonatomicretain)IBOutletUIView*portrait;@property(nonatomicretain)IBOutletUIButton*landscapeFooButton;@property(nonatomicretain)IBOutletUIButton*portraitFooButton;@property(nonatomicretain)IBOutletUIButton*landscapeBarButton;@property(nonatomicretain)IBOutletUIButton*portraitBarButton;-(IBAction)buttonPressed:(id)sender;解#definedegreesToRadians(X)(M_PI*(x)/landscape水平视图，portrait垂直视图landscapeFooButton水平视图中FooportraitFooButton垂直视图中Foo按钮landscapeBarButton水平视图中Bar按钮portraitBarButton垂直视图中Bar按钮视图设点击点击这个小箭头可以放到屏幕或竖起屏图 图输出口FooButtonBarFooButtonBar

：：编写m实现文#import"SwapViewController.h”@implementationSwapViewController@synthesizelandscape;@synthesizeportrait;@synthesize@synthesizeportraitFooButton;@synthesizelandscapeBarButton;@synthesizeportraitBarButton;-(void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientationduration:if(interfaceOrientation==UIInterfaceOrientationPortrait){self.view=self.portrait;self.view.transform=self.view.transformself.view.bounds=CGRectMake(0.0,0.0,320.0,460.0);}elseif(interfaceOrientation==UIInterfaceOrientationLandscapeLeft){self.view=self.landscape;self.view.transform=self.view.transformself.view.bounds=CGRectMake(0.0,0.0,480.0,300.0);}elseif(interfaceOrientationUIInterfaceOrientationPortraitUpsideDown){self.view=self.portrait;self.view.transform=self.view.transformself.view.bounds=CGRectMake(0.0,0.0,320.0,460.0);}elseif(interfaceOrientationUIInterfaceO