UITextField基礎語法

#pragma mark -  1.創建TextField

- (void)createTextField {

    UITextField *textFiled = [[UITextField alloc] initWithFrame:CGRectMake(20, 40, 250, 45)];

    textFiled.tag          = 1;

    [self.view addSubview:textFiled];

}

#pragma mark - 2.設置TextFieldOutLook

- (void)setUpTextFieldOutLook {

    UITextField *textField = [self.view viewWithTag:1];

    //設置邊框

    /*

     UITextBorderStyleNone,

     UITextBorderStyleLine,  線性邊框

     UITextBorderStyleBezel, 斜射邊框

     UITextBorderStyleRoundedRect  圓角邊框,顯示不出背景圖片

     */

    textField.borderStyle = UITextBorderStyleNone;//在圓角邊框下，顯示不出背景圖片

    //設置背景圖片

     textField.background = [UIImage imageNamed:@"dove"];

    //禁止用戶操作  enabled使能夠

    textField.enabled = NO;//設置為NO點擊就不響應了

    //設置不可操作下的圖片。點擊無用

    textField.disabledBackground = [UIImage imageNamed:@"dove2"];

    textField.enabled = YES;// 改為Yes 後，可以響應，但圖片是enabled情況下的圖片dove.png

}

#pragma mark - 3.設置文本

- (void)setText {

    UITextField *textField  = [self.view viewWithTag:1];

    // 1.基本文本樣式設置

    textField.placeholder   = @"請輸入賬號";

    textField.font          = [UIFont boldSystemFontOfSize:16];

    textField.textColor     = [UIColor redColor];

    textField.textAlignment = NSTextAlignmentLeft;

    // 2.顯示清空按鈕

    /*

     UITextFieldViewModeNever,

     UITextFieldViewModeWhileEditing,

     UITextFieldViewModeUnlessEditing,

     UITextFieldViewModeAlways

     */

    textField.clearButtonMode = UITextFieldViewModeAlways;

    //3.設置文字自適應內容的寬度，與最小字體

    textField.adjustsFontSizeToFitWidth = YES;

    textField.minimumFontSize           = 5;

    //4.設置左邊,右邊的圖片

    UIImageView *leftImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 40, 40)];

    leftImageView.image    = [UIImage imageNamed:@"qq"];

    textField.leftView     = leftImageView;

    textField.leftViewMode = UITextFieldViewModeAlways;

    UIImageView *rightImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 40, 40)];

    rightImageView.image    = [UIImage imageNamed:@"weixin"];

    textField.rightView     = rightImageView;

    textField.rightViewMode = UITextFieldViewModeAlways;

    //5.設置密文顯示

    //textField.secureTextEntry = YES;

    //代碼設置自動獲取焦點，如果不設置就沒有游標顯示，點擊之後才有顯示

    [textField becomeFirstResponder];

    //6.設置單詞字母是否大寫

    /*

     UITextAutocapitalizationTypeNone,沒有

     UITextAutocapitalizationTypeWords, 每一個單詞首字母大寫

     UITextAutocapitalizationTypeSentences, 每一個句子的首字母

     UITextAutocapitalizationTypeAllCharacters,每個英文字母都大寫

     */

    textField.autocapitalizationType = UITextAutocapitalizationTypeAllCharacters;

    //7.是否糾錯

    /*

     UITextAutocorrectionTypeDefault,

     UITextAutocorrectionTypeNo,

     UITextAutocorrectionTypeYes,

     */

    textField.autocorrectionType = UITextAutocorrectionTypeYes;

}

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {

    UITextField * textField = (UITextField*)[self.view viewWithTag:1];

    //失去焦點

    [textField resignFirstResponder];

}

#pragma mark - 4.設置鍵盤

- (void)setkeyboard {

    UITextField *textField  = [self.view viewWithTag:1];

    // 修改鍵盤的顏色

    /*

     UIKeyboardAppearanceDefault,          // Default apperance for the current input method.

     UIKeyboardAppearanceDark NS_ENUM_AVAILABLE_IOS(7_0),

     UIKeyboardAppearanceLight NS_ENUM_AVAILABLE_IOS(7_0),

     UIKeyboardAppearanceAlert = UIKeyboardAppearanceDark,  // Deprecated

     */

    textField.keyboardAppearance = UIKeyboardAppearanceDefault;

    //鍵盤的樣式

    textField.keyboardType = UIKeyboardTypeDefault;

    // 設置inputview和inputAccessoryView

    UIView *view         = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 50)];

    view.backgroundColor = [UIColor brownColor];

    textField.inputView  = view;

    UIView *view1         = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 50)];

    view1.backgroundColor = [UIColor blueColor];

    textField.inputAccessoryView  = view1;

}