iOS UI02_Button和Textfield

//

//  AppDelegate.m

// 

//

//  Created by dllo on 15/7/30.

//  Copyright (c) 2015年 zhozhicheng. All rights reserved.

//

#import "AppDelegate.h"

@interface AppDelegate ()

@property(nonatomic,retain)UITextField *textfield;

@property(nonatomic,assign)BOOL isSelected;

@property(nonatomic,retain)UILabel *label1;

@end

@implementation AppDelegate

-(void)dealloc

{

    [_window release];

    [_textfield release];

    [_label1 release];

    [superdealloc];

}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    self.window = [[UIWindowalloc] initWithFrame:[[UIScreenmainScreen] bounds]];

    // Override point for customization after application launch.

    self.window.backgroundColor = [UIColorwhiteColor];

    [self.windowmakeKeyAndVisible];

    [_window release];

    

    //新建一个测试按钮

    UIButton *button=[UIButtonbuttonWithType:UIButtonTypeSystem];

    button.frame=CGRectMake(100, 300, 100, 30);

    button.layer.borderWidth=1;

    button.layer.cornerRadius=10;

    [button setTitle:@"测试"forState:UIControlStateNormal];

    [self.windowaddSubview:button];

    //设置点击方法

    [button addTarget:selfaction:@selector(click:)forControlEvents:UIControlEventTouchUpInside];

    //设置文本框

    self.textfield=[[UITextFieldalloc] initWithFrame:CGRectMake(80, 150, 150, 30)];

    self.textfield.layer.borderWidth=1;

    self.textfield.layer.cornerRadius=5;

    [self.windowaddSubview:self.textfield];

   //

   self.textfield.tag=1000;

    [_textfield release];

    

    //设置输入之后是圆点

    self.textfield.secureTextEntry=YES;

    

    //给textfield添加addTarget-action方法

    [self.textfieldaddTarget:selfaction:@selector(changeValue:)forControlEvents:UIControlEventEditingChanged];

    

    //创建label1

    self.label1=[[UILabelalloc] initWithFrame:CGRectMake(100, 400, 150, 40)];

    self.label1.backgroundColor=[UIColorcyanColor];

    [self.windowaddSubview:self.label1];

    [_label1 release];

    

    MyButton *muButton=[MyButtonbuttonWithType:UIButtonTypeSystem];

    muButton.frame=CGRectMake(100, 350, 100, 30);

    muButton.buttonName=@"送信";

    [self.windowaddSubview:muButton];

    [muButton setTitle:@"MyButton"forState:UIControlStateNormal];

    

    

    //创建一个按钮,用来textfield切换状态

    UIButton *changePicButton=[UIButtonbuttonWithType:UIButtonTypeCustom];

    changePicButton.frame=CGRectMake(150,200, 30, 30);

    [changePicButton setImage:[UIImageimageNamed:@"check.png" ]forState:UIControlStateNormal];

    [self.windowaddSubview:changePicButton];

    [changePicButton addTarget:selfaction:@selector(changeImage:)forControlEvents:UIControlEventTouchUpInside];

    //文字"显示内容"

    UILabel *label=[[UILabelalloc] initWithFrame:CGRectMake(180, 200, 150, 30)];

    label.text=@"显示内容";

    [self.windowaddSubview:label];

    [labelrelease];

    //清除按钮

    self.textfield.clearButtonMode=UITextFieldViewModeAlways;

    

    return YES;

}

-(void)changeImage:(UIButton *)changePicButton{

   if (self.isSelected) {

        //切换点击之后的两种图片状态

        [changePicButton setBackgroundImage:[UIImageimageNamed:@"check.png"] forState:UIControlStateNormal];

    }else{

        [changePicButton setBackgroundImage:[UIImageimageNamed:@"checked.png"] forState:UIControlStateNormal];

    }self.isSelected =!self.isSelected;

    //内容显示,不显示两种状态

    self.textfield.secureTextEntry=!self.textfield.secureTextEntry;

}

-(void)changeValue:(UITextField*)textfield

{

   if (textfield.text.length >= 5) {

       self.label1.text=@"密码长度可以";

    }else{

       self.label1.text=@"密码长度过短";

    }

    

   NSLog(@"%@",textfield.text);

}

-(void)click:(UIButton *)button

{

//    //先找到textfield,然后再找对应的内容

//    UITextField *textField=(UITextField *)[self.window viewWithTag:1000];

//    NSLog(@"%@",textField.text);

    

    NSLog(@"%@",self.textfield.text);

    

}

- (void)applicationWillResignActive:(UIApplication *)application {

    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.

    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.

}

- (void)applicationDidEnterBackground:(UIApplication *)application {

    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.

    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.

}

- (void)applicationWillEnterForeground:(UIApplication *)application {

    // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.

}

- (void)applicationDidBecomeActive:(UIApplication *)application {

    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.

}

- (void)applicationWillTerminate:(UIApplication *)application {

    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.

}

@end