UIButton和UITextfield

//
//  AppDelegate.m
//  UI02_Button和Textfield
//
//  Created by dllo on 15/7/30.
//  Copyright (c) 2015年 Clare. All rights reserved.
//

#import "AppDelegate.h"

@interface AppDelegate ()

@property(nonatomic, retain)UITextField * textField;
@property(nonatomic, assign)BOOL changePicButton;
@property(nonatomic, retain)UILabel *label;

@end

@implementation AppDelegate

- (void)dealloc
{
    [_window release];
    [_textField release];
    [_label release];
    [super dealloc];
}


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    [_window release];

    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
    button.frame = CGRectMake(150, 50, 150, 40);
    button.layer.borderWidth = 1;
    button.layer.cornerRadius = 10;
    [button setTitle:@"测试" forState:UIControlStateNormal];
    [self.window addSubview:button];


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

    // 创建一个textfield
//    UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(150, 100, 100, 40)];
//    textField.layer.borderWidth = 1;
//    textField.layer.cornerRadius = 10;
//    [self.window addSubview:textField];
//    textField.tag = 1000;


    // 通过属性的方法创建textfield
    self.textField = [[UITextField alloc] initWithFrame:CGRectMake(150, 100, 100, 40)];
    self.textField.layer.borderWidth = 1;
    self.textField.layer.cornerRadius = 10;
    // self.window.backgroundColor = [UIColor grayColor];
    [self.window addSubview:self.textField];

    self.textField.tag = 1000;
    [_textField release];

    // 设置输入的内容变为圆点
    self.textField.secureTextEntry = YES;

    // 给textField添加addTarget-action方法
    [self.textField addTarget:self action:@selector(changeValue:) forControlEvents:UIControlEventEditingChanged];

    // 创建一个按钮,用来textfield切换状态
    UIButton *changePicButton = [UIButton buttonWithType:UIButtonTypeCustom];
    changePicButton.frame = CGRectMake(150, 200, 50, 50);
    [changePicButton setImage:[UIImage imageNamed:@"check.png" ] forState:UIControlStateNormal];
    // changePicButton.imageView
    [self.window addSubview:changePicButton];
    [changePicButton addTarget:self action:@selector(changePicButton:) forControlEvents:UIControlEventTouchUpInside];
    self.changePicButton = NO;

    UILabel *lable = [[UILabel alloc] initWithFrame:CGRectMake(50, 200, 150, 50)];
    lable.backgroundColor = [UIColor clearColor];
    [self.window addSubview:lable];
    [lable release];
    lable.userInteractionEnabled = YES;

//    lable.text = @"显示内容";

    UIButton *changePicButton1 = [UIButton buttonWithType:UIButtonTypeCustom];
    changePicButton1.frame = CGRectMake(0, 0, 50, 20);
    changePicButton1.backgroundColor =[UIColor cyanColor];
//    [changePicButton1 setImage:[UIImage imageNamed:@"checked.png" ] forState:UIControlStateNormal];
    // changePicButton.imageView
    [lable addSubview:changePicButton1];
    [changePicButton1 addTarget:self action:@selector(changePicButton:) forControlEvents:UIControlEventTouchUpInside];
    self.changePicButton = YES;


    // 创建一个label显示输入的长度
    self.label = [[UILabel alloc] initWithFrame:CGRectMake(150, 150, 150, 40)];
    self.label.backgroundColor = [UIColor cyanColor];
    [self.window addSubview:self.label];
    [_label release];
    self.label.layer.cornerRadius = 10;
    self.label.layer.masksToBounds = YES;

    MyButton *myButton = [MyButton buttonWithType:UIButtonTypeSystem];
    myButton.frame = CGRectMake(150, 250, 100, 30);
    myButton.buttonName = @"无律之音";
    [self.window addSubview:myButton];
    [myButton setTitle:@"MyButton" forState:UIControlStateNormal];

    return YES;
}

- (void)changeValue:(UITextField *)textField
{
    if (textField.text.length > 5) {
        self.label.text = @"密码长度有效";
    } else {
        self.label.text = @"密码长度过短";
    }

    NSLog(@"%@", textField.text);
}

- (void)click:(UIButton *)button
{
    // 先找到textField,然后再找到里面对应的内容
    // 通过tag找控件使用[self.window viewWithTag:]方法
//    UITextField *textField = (UITextField  *)[self.window viewWithTag:1000];
//    NSLog(@"%@", textField.text);
    NSLog(@"%@", self.textField.text);


}

- (void)changePicButton:(UIButton *)button
{
    if (self.changePicButton) {
        [button setImage:[UIImage imageNamed:@"check.png"] forState:UIControlStateNormal];
    } else {
        [button setImage:[UIImage imageNamed:@"checked.png"] forState:UIControlStateNormal];
    }
    self.changePicButton = !self.changePicButton;
    self.textField.secureTextEntry = !self.textField.secureTextEntry;
}

- (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

//
//  MyButton.h
//  UI02_Button和Textfield
//
//  Created by dllo on 15/7/30.
//  Copyright (c) 2015年 Clare. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface MyButton : UIButton

@property(nonatomic, copy)NSString *buttonName;

@end
//
//  MyButton.m
//  UI02_Button和Textfield
//
//  Created by dllo on 15/7/30.
//  Copyright (c) 2015年 Clare. All rights reserved.
//

#import "MyButton.h"

@implementation MyButton

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/

@end