iOS笔记UI--UITextField

//
//  ViewController.m
//  UITextField
//
//  Created by hhg on 15/9/22.
//  Copyright (c) 2015年 mac. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    UITextField *textField = [[UITextField alloc]initWithFrame:CGRectMake(100, 100, 150,100)];

    textField.backgroundColor = [UIColor cyanColor];

    [self.view addSubview:textField];

    textField.layer.borderWidth = 1;
    [textField setBorderStyle:UITextBorderStyleRoundedRect];  // 文字是否贴边框

    [textField setPlaceholder:@"请输入内容"];

    [textField setSecureTextEntry:YES];

    textField.delegate = self;

    // 再次编辑是否清空
    textField.clearsOnBeginEditing = YES;

    // 字体大小 = textField的有效宽度/内容的字节数。
    textField.font = [UIFont systemFontOfSize:60]; // 最大值

    textField.minimumFontSize = 20; // 最小值

    textField.adjustsFontSizeToFitWidth = YES;


    // 清空按键
    [textField setClearButtonMode:UITextFieldViewModeWhileEditing];

    //类型
    //[textField setKeyboardType:UIKeyboardTypeDecimalPad];

    //风格（样式）
    [textField setKeyboardAppearance:UIKeyboardAppearanceDefault];

    self.view.userInteractionEnabled = YES;

    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]init];
    [self.view addGestureRecognizer:tap];
    [tap addTarget:self action:@selector(tapClick)];
}

#pragma mark -  UITextField协议方法
-(void)textFieldDidBeginEditing:(UITextField *)textField {
    NSLog(@"已经进入编辑");
}

-(void)textFieldDidEndEditing:(UITextField *)textField {
    NSLog(@"已经结束编辑");
}

-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
    NSLog(@"是否允许再次编辑");
    return  YES;
}

-(BOOL)textFieldShouldClear:(UITextField *)textField {
    NSLog(@"是否允许清空");
    return  YES;
}

-(BOOL)textFieldShouldEndEditing:(UITextField *)textField {
    NSLog(@"是否结束编辑");
    return YES;
}

-(BOOL)textFieldShouldReturn:(UITextField *)textField {
    NSLog(@"是否使用return");
    [textField resignFirstResponder];
    return YES;
}

-(void)tapClick {
    [self.view endEditing:YES];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}

@end