textField 基本屬性

?_textField.frame?=?CGRectMake(0,?0,?200,?50);??

????_textField.delegate?=?self;??

????_textField.text?=?str;??

????[_textField?becomeFirstResponder];??

/*?

?????設(shè)置背景色、背景圖片。設(shè)置了背景圖片后，背景色設(shè)置無效?

?????如果background為nil，disabledBackground無效?

?????*/??

????_textField.background?=?[UIImage?imageNamed:@"返回-按下"];??

????_textField.disabledBackground?=?[UIImage?imageNamed:@"返回-未激活"];??

//????_textField.enabled?=?NO;??

????_textField.backgroundColor?=?[UIColor?blueColor];??

????_textField.placeholder?=?@"輸入文本…";??

/*?

?????設(shè)置為YES時文本會自動縮小以適應(yīng)文本窗口大小.默認是保持原來大小,而讓長文本滾動?

?????*/??

????_textField.adjustsFontSizeToFitWidth?=?YES;??

//設(shè)置自動縮小顯示的最小字體大小，adjustsFontSizeToFitWidth為YES才會起作用??

????_textField.minimumFontSize?=?20;??

????_textField.font?=?[UIFont?systemFontOfSize:30.0f];??

/*?

?????內(nèi)容對齊方式?

?????內(nèi)容的垂直對齊方式??UITextField繼承自UIControl,此類中有一個屬性contentVerticalAlignment?

?????*/??

????_textField.textAlignment?=?UITextAlignmentLeft;??

????_textField.contentVerticalAlignment?=?UIControlContentVerticalAlignmentCenter;??

/*?

?????typedef?enum?{?

?????UITextBorderStyleNone,?

?????UITextBorderStyleLine,?

?????UITextBorderStyleBezel,?

?????UITextBorderStyleRoundedRect?

?????}?UITextBorderStyle;?

?????*/??

????_textField.borderStyle?=?UITextBorderStyleBezel;??

/*?

?????每輸入一個字符就變成點?用語密碼輸入?

?????*/??

????_textField.secureTextEntry?=?NO;??

/*?

?????//輸入框中是否有個叉號，在什么時候顯示，用于一次性刪除輸入框中的內(nèi)容?

?????typedef?enum?{?

?????UITextFieldViewModeNever,　重不出現(xiàn)?

?????UITextFieldViewModeWhileEditing,?編輯時出現(xiàn)?

?????UITextFieldViewModeUnlessEditing,　除了編輯外都出現(xiàn)?

?????UITextFieldViewModeAlways?　一直出現(xiàn)?

?????}?UITextFieldViewMode;?

?????*/??

????_textField.clearButtonMode?=?UITextFieldViewModeWhileEditing;??

/*?

?????開始編輯，清空數(shù)據(jù)?

?????*/??

????_textField.clearsOnBeginEditing?=?NO;??

/*?

?????//是否糾錯?

?????typedef?enum?{?

?????UITextAutocorrectionTypeDefault,?默認?

?????UITextAutocorrectionTypeNo,?　不自動糾錯?

?????UITextAutocorrectionTypeYes,　自動糾錯?

?????}?UITextAutocorrectionType;?

?????*/??

????_textField.autocorrectionType?=?UITextAutocorrectionTypeYes;??

/*?

?????//首字母是否大寫?

?????typedef?enum?{?

?????UITextAutocapitalizationTypeNone,?不自動大寫?

?????UITextAutocapitalizationTypeWords,　單詞首字母大寫?

?????UITextAutocapitalizationTypeSentences,　句子的首字母大寫?

?????UITextAutocapitalizationTypeAllCharacters,?所有字母都大寫?

?????}?UITextAutocapitalizationType;?

?????*/??

????_textField.autocapitalizationType?=?UITextAutocapitalizationTypeWords;??

/*?

?????鍵盤?

?????typedef?enum?{?

?????UIKeyboardTypeDefault,?????　默認鍵盤，支持所有字符?

?????UIKeyboardTypeASCIICapable,　支持ASCII的默認鍵盤?

?????UIKeyboardTypeNumbersAndPunctuation,　標準電話鍵盤，支持＋＊＃字符?

?????UIKeyboardTypeURL,????????????URL鍵盤，支持.com按鈕?只支持URL字符?

?????UIKeyboardTypeNumberPad,????????????　數(shù)字鍵盤?

?????UIKeyboardTypePhonePad,　?　電話鍵盤?

?????UIKeyboardTypeNamePhonePad,?　電話鍵盤，也支持輸入人名?

?????UIKeyboardTypeEmailAddress,?　用于輸入電子?郵件地址的鍵盤?

?????UIKeyboardTypeDecimalPad,???　數(shù)字鍵盤?有數(shù)字和小數(shù)點?

?????UIKeyboardTypeTwitter,??????　優(yōu)化的鍵盤，方便輸入@、#字符?

?????UIKeyboardTypeAlphabet?=?UIKeyboardTypeASCIICapable,?

?????}?UIKeyboardType;?

?????*/??

????_textField.keyboardType?=?UIKeyboardTypeDefault;??

/*?

?????//return鍵變成什么鍵?

?????typedef?enum?{?

?????UIReturnKeyDefault,?默認?灰色按鈕，標有Return?

?????UIReturnKeyGo,????　標有Go的藍色按鈕?

?????UIReturnKeyGoogle,標有Google的藍色按鈕，用語搜索?

?????UIReturnKeyJoin,標有Join的藍色按鈕?

?????UIReturnKeyNext,標有Next的藍色按鈕?

?????UIReturnKeyRoute,標有Route的藍色按鈕?

?????UIReturnKeySearch,標有Search的藍色按鈕?

?????UIReturnKeySend,標有Send的藍色按鈕?

?????UIReturnKeyYahoo,標有Yahoo的藍色按鈕?

?????UIReturnKeyYahoo,標有Yahoo的藍色按鈕?

?????UIReturnKeyEmergencyCall,?緊急呼叫按鈕?

?????}?UIReturnKeyType;?

?????*/??

????_textField.returnKeyType?=?UIReturnKeyDone;??

/*?

?????//鍵盤外觀?

?????typedef?enum?{?

?????UIKeyboardAppearanceDefault，?默認外觀，淺灰色?

?????UIKeyboardAppearanceDark，　?　深灰?石墨色?

?????UIKeyboardAppearanceLight?淺灰色?

?????}?UIReturnKeyType;?

?????*/??

????_textField.keyboardAppearance=UIKeyboardAppearanceDefault;??

/*?

?????設(shè)置左右的兩個view?

?????*/??

//????UIImageView?*imgView?=?[[UIImageView?alloc]?initWithImage:[UIImage?imageNamed:@"image_right"]];??

//????imgView.frame?=?CGRectMake(0,?0,?20,?20);??

//????_textField.rightView?=?imgView;??

//????_textField.rightViewMode?=?UITextFieldViewModeAlways;???//?同上??

????UIImageView?*imgView?=?[[UIImageView?alloc]?initWithImage:[UIImage?imageNamed:@"image_left"]];??

????imgView.frame?=?CGRectMake(0,?0,?20,?20);??

????_textField.leftView?=?imgView;??

????_textField.leftViewMode?=?UITextFieldViewModeAlways;???//?同上??

/*?

?????重寫繪制行為?

?????除了UITextField對象的風(fēng)格選項，你還可以定制化UITextField對象，為他添加許多不同的重寫方法，來改變文本字段的顯示行為。這些方法都會返回一個CGRect結(jié)構(gòu)，制定了文本字段每個部件的邊界范圍。以下方法都可以重寫。?

??????

?????–?textRectForBounds:　　??　//重寫來重置文字區(qū)域?

?????–?drawTextInRect:　　??????　//改變繪文字屬性.重寫時調(diào)用super可以按默認圖形屬性繪制,若自己完全重寫繪制函數(shù)，就不用調(diào)用super了.?

?????–?placeholderRectForBounds:　　//重寫來重置占位符區(qū)域?

?????–?drawPlaceholderInRect:　　//重寫改變繪制占位符屬性.重寫時調(diào)用super可以按默認圖形屬性繪制,若自己完全重寫繪制函數(shù)，就不用調(diào)用super了.?

?????–?borderRectForBounds:　　//重寫來重置邊緣區(qū)域?

?????–?editingRectForBounds:　　//重寫來重置編輯區(qū)域?

?????–?clearButtonRectForBounds:　　//重寫來重置clearButton位置,改變size可能導(dǎo)致button的圖片失真?

?????–?leftViewRectForBounds:?

?????–?rightViewRectForBounds:?

?????*/

轉(zhuǎn)載于:https://www.cnblogs.com/sundaysme/p/10330716.html

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