一行代码为UITextField添加收键盘功能

iOS开发中收键盘是十分常用的功能，只需一行代码即可为ViewController添加工具条收键盘功能

更重要的是使用catogory，无代码污染。

 

代码

//  UITextField+keyboard.h
//  TextFieldKeyBord
//
//  Created by luo.h on 15/10/8.
//  Copyright © 2015年 l.h. All rights reserved.
//

#import <UIKit/UIKit.h>@interface UITextField (keyboard)+(void)registerTextFieldInView:(UIView *)aView;@end

 

//
//  UITextField+keyboard.m
//  TextFieldKeyBord
//
//  Created by luo.h on 15/10/8.
//  Copyright © 2015年 l.h. All rights reserved.
//

#import "UITextField+keyboard.h"@implementation UITextField (keyboard)-(void)addToolbarWitDoneTitle:(NSString*)title
{UIBarButtonItem *flexibleSpaceLeft = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpacetarget:nilaction:nil];UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithTitle:titlestyle:UIBarButtonItemStyleDonetarget:selfaction:@selector(dismissKeyBord)];[doneButton  setTintColor:[UIColor redColor]];UIToolbar *toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, self.window.frame.size.width, 44.0)];[toolbar setItems:@[flexibleSpaceLeft, doneButton]];[self setInputAccessoryView:toolbar];
}
//查找所有UITextField并添加按钮
+(void)registerTextFieldInView:(UIView *)aView;
{for (id obj in aView.subviews) {NSLog(@"obj class: %@",[obj class]);if ([obj isKindOfClass:[UITextField class]]) {UITextField* theTextField = (UITextField*)obj;[theTextField addToolbarWitDoneTitle:@"完成"];}}
}-(void)dismissKeyBord
{[self  resignFirstResponder];
}@end

 

使用：

- (void)viewDidLoad {[super viewDidLoad];//注册self.view里所有UITextField[UITextField registerTextFieldInView:self.view];}

Demo:　http://files.cnblogs.com/files/sixindev/TextFieldKeyBord.zip