iOS 用户登录界面
界面由代码生成,输入合法性验证导航 AppDelegate.h AppDelegate.m ViewController.h ViewController.m userEnterView.xib #AppDelegate.h #import <UIKit/UIKit.h> @class ViewController; @interface AppDelegate : UIResponder <UIApplicationDelegate> @property(nonatomic,retain)ViewController *vc; @property (strong, nonatomic) UIWindow *window; @end #AppDelegate.m #import "AppDelegate.h" #import "ViewController.h" @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. CGRect rect=[[UIScreen mainScreen]bounds]; self.window=[[UIWindow alloc]initWithFrame:rect]; self.vc=[[ViewController alloc]initWithNibName:@"userEnterView" bundle:nil]; self.window.rootViewController=self.vc; [self.window makeKeyAndVisible]; return YES; } #ViewController.h #import <UIKit/UIKit.h> @interface ViewController : UIViewController<UITextFieldDelegate> @property(nonatomic,retain)NSArray *info; @property(nonatomic,retain)NSMutableArray *checkinfo; @property(nonatomic,retain)NSMutableArray *textfiledArrary; -(void)textField_DidEndExit:(id)sender; -(void)commitAllInfo; -(void)drawboard; @end #ViewController.m #import "ViewController.h" @interface ViewController (){ NSString *namelabel; NSString *passLab; NSString *checkPassLab; NSString *emailLab; NSString *numberLab; NSString *sexLab; } @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; //用于显示的label namelabel=@"Name:"; passLab=@"Pass:"; checkPassLab=@"RePass:"; emailLab=@"Email:"; numberLab=@"Number:"; sexLab=@"Sex:"; //数组的初始化 self.info=[[NSArray alloc]initWithObjects:namelabel,passLab,checkPassLab,emailLab,numberLab,sexLab,nil]; self.checkinfo=[[NSMutableArray alloc]init]; self.textfiledArrary=[[NSMutableArray alloc]init]; //绘制界面 [self drawboard]; // Do any additional setup after loading the view, typically from a nib. } -(void)drawboard{ for (int i=0; i<6; i++) { //显示Label UILabel *label=[[UILabel alloc]init]; label.frame=CGRectMake(40, (i+1)*50, 50, 20); [label setTextColor:[UIColor blackColor]]; label.textAlignment=UITextAlignmentRight; label.adjustsFontSizeToFitWidth=YES; label.text=[self.info objectAtIndex:i]; //输入框 UITextField *textfield=[[UITextField alloc]init]; textfield.frame=CGRectMake(100, (i+1)*50, 120, 20); textfield.borderStyle=UITextBorderStyleRoundedRect; textfield.tag=i; if (textfield.tag==1||textfield.tag==2) { textfield.secureTextEntry=YES; } //添加委托 textfield.delegate=self; //给软键盘添加退出 [textfield addTarget:self action:@selector(textField_DidEndExit:) forControlEvents:UIControlEventEditingDidEndOnExit]; [self.textfiledArrary addObject:textfield]; //检测label UILabel *labelCheck=[[UILabel alloc]init]; labelCheck.frame=CGRectMake(240, (i+1)*50, 50, 20); labelCheck.adjustsFontSizeToFitWidth=YES; labelCheck.tag=i; [self.checkinfo addObject:labelCheck]; [self.view addSubview:labelCheck]; [self.view addSubview:textfield]; [self.view addSubview:label]; } //提交按钮 UIButton *button=[[UIButton alloc]init]; button.backgroundColor=[UIColor lightGrayColor]; button.frame=CGRectMake(100, 350, 120, 30); [button setTitle:@"注册" forState:UIControlStateNormal]; [button addTarget:self action:@selector(commitAllInfo) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:button]; } -(void)textFieldDidEndEditing:(UITextField *)textField { NSString *str=textField.text; //检测密码 if (textField.tag==2) { // UITextField *textCheck=(UITextField *)[self.textfiledArrary objectAtIndex:1]; UILabel *label=(UILabel *)[self.checkinfo objectAtIndex:2]; if (![str isEqualToString:textCheck.text]) { label.text=@"密码不一致"; } if ([str isEqualToString:textCheck.text]) { label.text=@""; } } //email if (textField.tag==3) { NSString *emailCheck=@"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}"; NSPredicate *emailTest=[NSPredicate predicateWithFormat:@"SELF MATCHES%@",emailCheck]; if (![emailTest evaluateWithObject:str]) { UILabel *label=(UILabel *)[self.checkinfo objectAtIndex:3]; label.text=@"格式错误"; } else{ UILabel *label=(UILabel *)[self.checkinfo objectAtIndex:3]; label.text=@""; } } //号码有效性 if (textField.tag==4) { NSString *phoneCheck=@"^((13[0-9])|(15[^4,\\D])|(18[0,5-9]))\\d{8}$"; NSPredicate *phonelTest=[NSPredicate predicateWithFormat:@"SELF MATCHES%@",phoneCheck]; if (![phonelTest evaluateWithObject:str]) { UILabel *label=(UILabel *)[self.checkinfo objectAtIndex:4]; label.text=@"格式错误"; } else{ UILabel *label=(UILabel *)[self.checkinfo objectAtIndex:4]; label.text=@""; } } //键盘遮挡输入框 self.view.frame =CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height); } -(void)textField_DidEndExit:(id)sender { [sender resignFirstResponder]; } //软键盘遮挡屏幕 -(void)textFieldDidBeginEditing:(UITextField *)textField { CGRect frame=textField.frame; int offset=frame.origin.y+32-(self.view.frame.size.height-216.0); NSTimeInterval animationDuration=0.30f; [UIView beginAnimations:@"ReSizeForKeyboard" context:nil]; [UIView setAnimationDuration:animationDuration]; if(offset > 0) self.view.frame = CGRectMake(0.0f, -offset, self.view.frame.size.width, self.view.frame.size.height); [UIView commitAnimations]; } -(void)commitAllInfo { for (id textIno in self.textfiledArrary) { UITextField *tempText=(UITextField *)textIno; [self textFieldDidEndEditing:tempText]; } }