您好,登錄后才能下訂單哦!
@interface ViewController ()<UITextFieldDelegate>
{
UITextField * _numberFielde;
}
@end
@implementation ViewController
static NSString * NUMBER = @"0123456789";//數(shù)字
static int setNumber = 1; //幾個數(shù)字加空格 1改成自己想要的字符
static NSString * kongSring = @"*";//幾個數(shù)字中間加的字符 x改成自己想要的字符
- (void)viewDidLoad {
[super viewDidLoad];
_numberFielde = [[UITextField alloc] initWithFrame:CGRectMake(10, 100,self.view.frame.size.width-20, 35)];
_numberFielde.layer.borderColor = [UIColor grayColor].CGColor;
_numberFielde.layer.borderWidth = 1.0f;
_numberFielde.delegate = self;
[_numberFielde becomeFirstResponder];
_numberFielde.placeholder = @"請輸入數(shù)字";
[self.view addSubview:_numberFielde];
// Do any additional setup after loading the view, typically from a nib.
}
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
NSCharacterSet *characterSet = [[NSCharacterSet characterSetWithCharactersInString:NUMBER] invertedSet]; //定義一個字符集合
NSString*filtered = [[string componentsSeparatedByCharactersInSet:characterSet] componentsJoinedByString:@""];
BOOL basicTest = [string isEqualToString:filtered];
if(basicTest)
{
if (textField == _numberFielde)
{
//setNumber位加一個空格
if ([string isEqualToString:@""]){ // 刪除字符
if ((textField.text.length - 2) % setNumber == 0) {
textField.text = [textField.text substringToIndex:textField.text.length - 1];
}
return YES;
} else {
if (textField.text.length % setNumber == 0) {
textField.text = [NSString stringWithFormat:@"%@%@", textField.text,kongSring];
}
}
return YES;
}
}
else
{
return NO;
}
return YES;
}
免責聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉載和分享為主,文章觀點不代表本網(wǎng)站立場,如果涉及侵權請聯(lián)系站長郵箱:is@yisu.com進行舉報,并提供相關證據(jù),一經(jīng)查實,將立刻刪除涉嫌侵權內(nèi)容。