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+*#等符号      UIKeyboardTypeURL,                    // URL键盘，有.com按钮；只支持URL字符      UIKeyboardTypeNumberPad,              //数字键盘      UIKeyboardTypePhonePad,               // 电话键盘      UIKeyboardTypeNamePhonePad,           // 电话键盘，也支持输入人名字      UIKeyboardTypeEmailAddress,           // 用于输入电子邮件地址的键盘  } UIKeyboardType; 

textView.keyboardtype = UIKeyboardTypeNumberPad;

typedef enum {      UIKeyboardAppearanceDefault,    // 默认外观：浅灰色      UIKeyboardAppearanceAlert,      //深灰/石墨色  } UIKeyboardAppearance;

textView.keyboardAppearance=UIKeyboardAppearanceDefault;

typedef enum {      UIReturnKeyDefault,  //默认：灰色按钮，标有Return     UIReturnKeyGo,  //标有Go的蓝色按钮     UIReturnKeyGoogle,  //标有Google的蓝色按钮，用于搜索     UIReturnKeyJoin,  //标有Join的蓝色按钮     UIReturnKeyNext,  //标有Next的蓝色按钮     UIReturnKeyRoute,  //标有Route的蓝色按钮     UIReturnKeySearch,  //标有Search的蓝色按钮     UIReturnKeySend,  //标有Send的蓝色按钮     UIReturnKeyYahoo,  //标有Yahoo!的蓝色按钮，用于搜索     UIReturnKeyDone,  //标有Done的蓝色按钮     UIReturnKeyEmergencyCall,  //紧急呼叫按钮 } UIReturnKeyType; 

textView.returnKeyType=UIReturnKeyGo;

typedef enum {      UITextAutocapitalizationTypeNone, //不自动大写      UITextAutocapitalizationTypeWords, //单词首字母大写      UITextAutocapitalizationTypeSentences, //句子首字母大写      UITextAutocapitalizationTypeAllCharacters, //所有字母大写  } UITextAutocapitalizationType; 

textField.autocapitalizationType = UITextAutocapitalizationTypeWords;

typedef enum {      UITextAutocorrectionTypeDefault,//默认      UITextAutocorrectionTypeNo,//不自动更正      UITextAutocorrectionTypeYes,//自动更正  } UITextAutocorrectionType;

textField.autocorrectionType = UITextAutocorrectionTypeYes;

textView.secureTextEntry=YES;

textField,delegate=self;

- (void)textFieldDidBeginEditing:(UITextField *)textField  { //当点触textField内部，开始编辑都会调用这个方法。textField将成为first responder          NSTimeInterval animationDuration = 0.30f;            CGRect frame = self.view.frame;        frame.origin.y -=216;        frame.size.height +=216;        self.view.frame = frame;         [UIView beginAnimations:@"ResizeView" context:nil];         [UIView setAnimationDuration:animationDuration];         self.view.frame = frame;                         [UIView commitAnimations];                  } 

- (BOOL)textFieldShouldReturn:(UITextField *)textField   {//当用户按下ruturn，把焦点从textField移开那么键盘就会消失了          NSTimeInterval animationDuration = 0.30f;          CGRect frame = self.view.frame;              frame.origin.y +=216;                frame.size. height -=216;             self.view.frame = frame;      //self.view移回原位置        [UIView beginAnimations:@"ResizeView" context:nil];      [UIView setAnimationDuration:animationDuration];          self.view.frame = frame;                          [UIView commitAnimations];          [textField resignFirstResponder];     }