UITextField学习技巧

 UITextFiled练习

    // 用户名

    UITextField *userField = [[UITextField
alloc]
initWithFrame:CGRectMake(LOCATION_X + (CONTROL_WIDTH *
2) +
10, LOCATION_Y,
CONTROL_WIDTH * 7,
CONTROL_HEIGHT)];

    userField.placeholder =
@"请输入用户名";

    /*

边框样式

    typedef enum {

        UITextBorderStyleNone,

        UITextBorderStyleLine,

        UITextBorderStyleBezel,       

        UITextBorderStyleRoundedRect

    } UITextBorderStyle;

    */

    userField.borderStyle =
UITextBorderStyleBezel;

    //
字体颜色

    userField.textColor = [UIColor
blueColor];

    /* 

         字体对齐格式

    typedef enum {

    NSTextAlignmentLeft,     

    NSTextAlignmentCenter,

    NSTextAlignmentRight, 

    NSTextAlignmentRight,

    NSTextAlignmentCenter,

    } 

   */ 

    userField.textAlignment =
NSTextAlignmentLeft;

   
// 当编辑时文本框中的清除按钮

    userField.clearButtonMode =
UITextFieldViewModeWhileEditing;

    userField.keyboardType =
UIKeyboardTypeDefault;

    userField.keyboardAppearance =
UIKeyboardAppearanceDefault;

    userField.returnKeyType =
UIReturnKeyDone;

   
// 文本框中未输入文字式，Done的键为灰色，不可点状态

    userField.enablesReturnKeyAutomatically =
YES;

    // [userField becomeFirstResponder];

   // 代理方法 UITextFiledDelegate

   /*

   - (BOOL)textFieldShouldBeginEditing:(UITextField *)textField;       
// return NO to disallow editing.

   - (void)textFieldDidBeginEditing:(UITextField *)textField;          
// became first responder

   - (BOOL)textFieldShouldEndEditing:(UITextField *)textField;         
// return YES to allow editing to stop  and to resign first responder status. NO to disallow the editing session to end

   - (void)textFieldDidEndEditing:(UITextField *)textField;            
// may be called if forced even if shouldEndEditing returns NO (e.g. view removed from window) or endEditing:YES called

   - (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString
*)string;   // return NO to not change text

   - (BOOL)textFieldShouldClear:(UITextField *)textField;              
// called when clear button pressed. return NO to ignore (no notifications)  清除按钮

   - (BOOL)textFieldShouldReturn:(UITextField *)textField;             
// called when 'return' key pressed. return NO to ignore. 点击return,关闭键盘

*/ 

我关于UITextField常用的属性和方法就那么多，欢迎补充！！