自定义TextField清除按钮
当需要设置TextField的清除按钮的时候,系统的总是不满足需求,这就需要我们自定义了,代码如下:
1 // 2 // TextFieldDemoViewController.m 3 // OCDemo 4 // 5 // Created by 思 彭 on 16/12/14. 6 // Copyright © 2016年 思 彭. All rights reserved. 7 // 8 9 #import "TextFieldDemoViewController.h" 10 11 @interface TextFieldDemoViewController ()<UITextFieldDelegate> 12 13 @property (nonatomic, strong) UITextField *textField; 14 15 @end 16 17 @implementation TextFieldDemoViewController 18 19 - (void)viewDidLoad { 20 [super viewDidLoad]; 21 22 self.textField = [[UITextField alloc]initWithFrame:CGRectMake(20, 100, 200, 35)]; 23 self.textField.delegate = self; 24 self.textField.placeholder = @"请输入"; 25 self.textField.borderStyle = UITextBorderStyleLine; 26 [self.view addSubview:self.textField]; 27 28 /* 29 self.textField.clearButtonMode = UITextFieldViewModeAlways; 30 // 设置textField清除按钮的背景颜色 31 [self.textField setValue:[UIColor redColor] forKeyPath:@"_placeholderLabel.textColor"]; 32 // 不能改变背景颜色,需要设置imageView属性 33 [self.textField setValue:[UIColor redColor] forKeyPath:@"_clearButton.backgroundColor"]; 34 // [self.textField setValue:[UIImage imageNamed:@"iconfont-shuqian_sel_30x30_@2x"] forKeyPath:@"_clearButton.image"]; 35 36 */ 37 38 UIButton *clearButton = [UIButton buttonWithType:UIButtonTypeCustom]; 39 clearButton.frame = CGRectMake(self.textField.frame.size.width - 10, 10, 10, 10); 40 [clearButton addTarget:self action:@selector(clearButtonDidClick:) forControlEvents:UIControlEventTouchUpInside]; 41 [clearButton setImage:[UIImage imageNamed:@"iconfont-shuqian_sel_30x30_@2x"] forState:UIControlStateNormal]; 42 [self.textField addSubview:clearButton]; 43 } 44 45 - (void)clearButtonDidClick: (UIButton *)button { 46 47 self.textField.text = nil; 48 } 49 50 - (BOOL)textFieldShouldReturn:(UITextField *)textField { 51 52 [self.textField resignFirstResponder]; 53 return YES; 54 } 55 @end
