UITextFieldで文字位置を調整する

UITextFieldの大きさはそのままで、文字の位置だけを調整する方法

UITextFieldを継承したクラスを作成する。

CustomTextField.h

@interface CustomTextField : UITextField

// プレースホルダー・テキストカラー
@property (nonatomic) UIColor *placeHolderTextColor;

@end 

CustomTextField.m

@implementation CustomTextField

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];

    if(self) {
        self.font = [UIFont systemFontOfSize:13];
        self.placeHolderTextColor =[UIColor blackColor];
        self.clearButtonMode = UITextFieldViewModeWhileEditing;
        self.returnKeyType = UIReturnKeySearch;
        self.keyboardAppearance = UIKeyboardAppearanceLight;
    }

    return self;
}

- (void)drawPlaceholderInRect:(CGRect)rect
{
    rect.origin.y = (rect.size.height - 10) / 2;
    NSDictionary *attr = @{ NSFontAttributeName: [UIFont systemFontOfSize:13],
                            NSForegroundColorAttributeName: self.placeHolderTextColor };

    [self.placeholder drawWithFrame:rect attributes:attr];
}

- (CGRect)textRectForBounds:(CGRect)bounds
{
    return CGRectOffset(bounds, 5, 0);
}

- (CGRect)editingRectForBounds:(CGRect)bounds
{
    return CGRectOffset(bounds, 5, 0);
}

// placeholderの位置調整
- (CGRect)placeholderRectForBounds:(CGRect)bounds
{
    return CGRectOffset(bounds, 5, -2);
}

@end