UITextField 和 UIButton的基本属性和用法

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UITextField

placeholder //占位字符

font= [UIFontsystemFontOfSize:20];// 字体

clearButtonMode//清除按钮显示

{

UITextFieldViewModeNever, //不显示

UITextFieldViewModeWhileEditing,//编辑时显示

UITextFieldViewModeUnlessEditing,//编辑时不显示

UITextFieldViewModeAlways//一直显示

}

keyboardType//键盘类型

{

UIKeyboardTypeDefault, //默认键盘

UIKeyboardTypeASCIICapable,

UIKeyboardTypeNumbersAndPunctuation,

UIKeyboardTypeURL,

UIKeyboardTypeNumberPad, //数字键盘

UIKeyboardTypePhonePad, //电话键盘

UIKeyboardTypeNamePhonePad,

UIKeyboardTypeEmailAddress,

}

borderStyle://边框类型

{

UITextBorderStyleNone,//没有边框

UITextBorderStyleLine,//黑线直角

UITextBorderStyleBezel,//细线

UITextBorderStyle

returnKeyType //右下角return键样式

{

UIReturnKeyDefault,
    UIReturnKeyGo,
    UIReturnKeyGoogle,
    UIReturnKeyJoin,
    UIReturnKeyNext,
    UIReturnKeyRoute,
    UIReturnKeySearch,
    UIReturnKeySend,
    UIReturnKeyYahoo,
    UIReturnKeyDone,

UIReturnKeyEmergencyCall,

}

- (BOOL)becomeFirstResponder;//成为第一响应者

- (BOOL)resignFirstResponder;// 取消第一响应者

- (BOOL)isFirstResponder;//是否为第一响应者

delegate //代理

clearsOnBeginEditing //再次编辑时清空输入框 (YES , NO);

secureTextEntry //是否以密码点显示

//点击右下角return的实现

- (BOOL)textFieldShouldReturn:(UITextField*)textField

UITextField

//创建一个button

//注意!类方法创建对象不用手动管理内存

UIButton *button = [UIButtonbuttonWithType:UIButtonTypeCustom];

button.frame= CGRectMake(100,100,36,36);

button.tag= 100;//标签

button.backgroundColor= [UIColorredColor];//颜色

[buttonsetTitle:@"按钮"forState:UIControlStateNormal];//添加标题

{

forState //状态

UIControlStateNormal //正常

UIControlStateHighlighted //高亮

UIControlStateSelected //选中

}

//给button加标题颜色(不同状态下)

[buttonsetTitleColor:[UIColorblueColor] forState:UIControlStateNormal];

[ button.layersetCornerRadius: 10]给button添加边框圆角

//给button添加实现

[buttonaddTarget:selfaction:@selector(buttonClick:)//方法名 forControlEvents:UIControlEventTouchUpInside];

//给button添加图片

setImage:<#(UIImage *)#> forState:<#(UIControlState)#>

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