textField常用的属性
UITextField *textF = [[UITextField alloc]initWithFrame:CGRectMake(0, kFitH(100), kScreenWidth, kFitH(60))];
//设置代理
textF.delegate = self;
//背景
textF.backgroundColor = [UIColor whiteColor];
textF.placeholder = @" 输入手机号码";
typedef enum {
UIKeyboardTypeDefault, 默认键盘，支持所有字符
UIKeyboardTypeASCIICapable, 支持ASCII的默认键盘
UIKeyboardTypeNumbersAndPunctuation, 标准电话键盘，支持＋＊＃字符
UIKeyboardTypeURL, URL键盘，支持.com按钮 只支持URL字符
UIKeyboardTypeNumberPad, 数字键盘
UIKeyboardTypePhonePad, 电话键盘
UIKeyboardTypeNamePhonePad, 电话键盘，也支持输入人名
UIKeyboardTypeEmailAddress, 用于输入电子 邮件地址的键盘
UIKeyboardTypeDecimalPad, 数字键盘 有数字和小数点
UIKeyboardTypeTwitter, 优化的键盘，方便输入@、#字符
UIKeyboardTypeAlphabet = UIKeyboardTypeASCIICapable,
} UIKeyboardType;
[self.textF setKeyboardType:UIKeyboardTypeNumberPad];
但是会报错，目前没有解决办法，哪位大神会解决麻烦告诉小的
报错信息：Can't find keyplane that supports type 4 for keyboard iPhone-PortraitChoco-NumberPad; using 1336863583_PortraitChoco_iPhone-Simple-Pad_Default
//添加clearButton
textF.clearButtonMode = UITextFieldViewModeWhileEditing;
//设置为加边框的模式，但是鄙人都是使用layer加borderd的方法，例如：
fieldF.layer.cornerRadius = 5;
fieldF.layer.masksToBounds = YES;
fieldF.layer.borderColor = [UIColor redColor].CGColor;
fieldF.layer.borderWidth = 2;
fieldF.borderStyle = UITextBorderStyleRoundedRect;
//设置输入为安全模式
fieldF.secureTextEntry = YES;
//对齐方式，目前没有什么用
textF.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
//设置placeholder的字体，必须和text字体一致，否则不能对齐
[textF setValue:[UIFont fontWithName:kFontPingFangMedium size:kFitFontSize(32)] forKeyPath:@"_placeholderLabel.font"];
//设置文字的字体
textF.font = [UIFont fontWithName:kFontPingFangMedium size:kFitFontSize(32)];
//设置光标的颜色
textF.tintColor = [UIColor grayColor];
//设置光标左移
UIView *leftVie = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 10, 0)];
textF.leftView = leftVie;
//设置左边view的显示方式
textF.leftViewMode = UITextFieldViewModeAlways;
// 监听电话号码的改变
[textF addTarget:self action:@selector(textChanged:) forControlEvents:UIControlEventEditingChanged];
placeholder的颜色不能直接进行设置，我们可以利用分类的方式进行添加属性
分类.h
#import <UIKit/UIKit.h>
@interface UITextField (Placeholder)
@property (nonatomic, strong)UIColor* placeholderColor;
@end
分类.m
#import "UITextField+Placeholder.h"
#import <objc/message.h>
@implementation UITextField (Placeholder)
-(void)setPlaceholderColor:(UIColor *)placeholderColor{
objc_setAssociatedObject(self, @"placeholderColor", placeholderColor, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
UILabel *placeLabel = [self valueForKey:@"placeholderLabel"];
placeLabel.textColor = placeholderColor;
}
- (UIColor *)placeholderColor{
return objc_getAssociatedObject(self, @"placeholderColor");
}
在需要设置颜色的类中导进
#import "UITextField+Placeholder.h"
就可以设置颜色了
fieldF.placeholderColor = [UIColor redColor];
//设置与之相关的代理方法
- (void)textFieldDidBeginEditing:(UITextField *)textField{
//成为第一响应者
[textField becomeFirstResponder];
}
//判断手机号是不是11位并截取到11位
- (void)textChanged:(UITextField *)field {
if (field == self.textF) {
if (field.text.length<11) {
self.navigationItem.rightBarButtonItem.enabled = NO;
}else{
field.text = [field.text substringToIndex:11];
self.navigationItem.rightBarButtonItem.enabled = YES;
[field resignFirstResponder];
}
}
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
[self.textF resignFirstResponder];
}
-(BOOL)textFieldShouldClear:(UITextField *)textField{
return YES;
}
一下是textField经常用到的相关方法
//只允许输入数字，且只有11位数
-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string{
if (textField.text.length == 11) {
if ([string isEqualToString:@""]) {
return YES;
}
else {
return NO;
}
}
return [self validateNumber:string];
}
//只允许输入数字
- (BOOL)validateNumber:(NSString*)number{
BOOL res = YES;
NSCharacterSet* tmpSet = [NSCharacterSet characterSetWithCharactersInString:@"0123456789"];
int i = 0;
while (i < number.length) {
NSString * string = [number substringWithRange:NSMakeRange(i, 1)];
NSRange range = [string rangeOfCharacterFromSet:tmpSet];
if (range.length == 0) {
res = NO;
break;
}
i++;
}
return res;
}
//检查是否为手机号的方法
-(BOOL)checkPhoneNumInput:(NSString *)phoneStr
{
NSString *photoRange = @"^1(3[0-9]|4[0-9]|5[0-9]|7[0-9]|8[0-9])\\d{8}$";//正则表达式
NSPredicate *regexMobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",photoRange];
BOOL result = [regexMobile evaluateWithObject:phoneStr];
if (result) {
return YES;
} else {
return NO;
}
}
