UITextField 屬性.png

    _phoneTextField = [[UITextField alloc]init];
    _phoneTextField.borderStyle = UITextBorderStyleRoundedRect; //圓角邊框
    _phoneTextField.layer.cornerRadius = 37.5;  // 切圓角
    _phoneTextField.clipsToBounds = true;
    _phoneTextField.layer.borderColor = [[UIColor colorFromHexRGB:@"20abff"] CGColor]; // 邊框顏色
    _phoneTextField.layer.borderWidth = 1.0;
    NSMutableAttributedString * attribute = [[NSMutableAttributedString alloc]initWithString:@"輸入手機號" attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:23],NSForegroundColorAttributeName:[UIColor colorFromHexRGB:@"20abff"]}];
    _phoneTextField.defaultTextAttributes = @{NSFontAttributeName:[UIFont systemFontOfSize:23],NSForegroundColorAttributeName:[UIColor blackColor]};  // 正常狀態下的字體顏色
    _phoneTextField.tintColor = [UIColor lightGrayColor]; // 光標占位符的顏色
    _phoneTextField.attributedPlaceholder = attribute;  // Placeholder 的屬性 (字體大小, 字體顏色)

協議方法

// 是否允許開始編輯
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField{
    return true;
}
// 開始編輯時調用（成為第一響應者）
// became first responder
- (void)textFieldDidBeginEditing:(UITextField *)textField{
    
}
// 是否允許結束編輯
- (BOOL)textFieldShouldEndEditing:(UITextField *)textField{
    return true;
}
// 當結束編輯時調用
- (void)textFieldDidEndEditing:(UITextField *)textField{

}
// 替換textFieldDidEndEditing 【UITextFieldDidEndEditingReason見下】
- (void)textFieldDidEndEditing:(UITextField *)textField reason:(UITextFieldDidEndEditingReason)reason NS_AVAILABLE_IOS(10_0){
    
}

// 是否允許文本框的內容（no/false 攔截用書輸入 true/yes 允許用戶輸入）
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string{
    return false;
}

typedef NS_ENUM(NSInteger, UITextFieldDidEndEditingReason) {
    UITextFieldDidEndEditingReasonCommitted,   // 提交編輯
    UITextFieldDidEndEditingReasonCancelled UIKIT_AVAILABLE_TVOS_ONLY(10_0) // 取消編輯
}