HCViewEasyMake

Create, Add, Remove UIViews with less boilerplate code.

Features

Macros

#define HCViewOnceGetter(class, property, ivar, internalVar, block)
#define HCViewRelease(VIEW)

Category methods

- (void)addSubviews:(NSArray *)subviews;
- (void)setSize:(CGSize)size;
- (void)setOrigin:(CGPoint)origin;
- (CGFloat)xPlusWidh;
- (CGFloat)yPlusHeight;

Getter

This is what we do now.

- (UILabel *)label
{
    if (!_label) {
        _label = ({
            UILabel *lbl = [[UILabel alloc] init];
            // you can add something for this label finally.. from here
              lbl.font = [UIFont systemFontOfSize:12];
              lbl.text = @"too much boiler plate code";
              [lbl sizeToFit];
            // to here
            lbl;
        });
    }

    return _label;
}

You can simply do like this

HCViewOnceGetter(UILabel, label, _label, lbl, ^{
    lbl.font = [UIFont systemFontOfSize:12];
    lbl.text = @"clean and easy view creation";
    [lbl sizeToFit];
})

Release

Two lines; And we forget to call removeFromSuperView a lot;

[self.label removeFromSuperview];
self.label = nil;

One line. And don't forget.

HCViewRelease(self.label)

Full usage

@implementation HCExampleCell

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        [self addSubviews:@[self.label, self.imgView, self.button]];

        [self.label setOrigin:CGPointMake(10,10)];
        [self.imgView setOrigin:CGPointMake(10, self.label.yPlusHeight + 10)];
        [self.button setOrigin:CGPointMake(self.imgView.xPlusWidh + 10, self.label.yPlusHeight + 10)];
    }
    return self;
}

HCViewOnceGetter(UILabel, label, _label, lbl, ^{
    lbl.font = [UIFont systemFontOfSize:12];
    lbl.text = @"clean and easy view creation";
    [lbl sizeToFit];
})

HCViewOnceGetter(UIImageView, imgView, _imgView, imgV, ^{
    imgV.image = [UIImage imageNamed:@"someImage"];
    imgV.backgroundColor = [UIColor blackColor];
    [imgV setSize:CGSizeMake(50, 50)];
})

HCViewOnceGetter(UIButton, button, _button, btn, ^{
    [btn setTitle:@"Release Label and ImageView" forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
    [btn addTarget:self action:@selector(touchButton:) forControlEvents:UIControlEventTouchUpInside];
    [btn sizeToFit];
})

- (void)touchButton:(id)sender
{
    HCViewRelease(self.label)
    HCViewRelease(self.imgView)
}

@end

Looks simple and straight right?

It was actually previously like this...

@implementation HCExampleCell

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        [self addSubview:self.label];
        [self addSubview:self.imgView];
        [self addSubview:self.button];

        CGRect newFrame = self.label.frame;
        newFrame.origin = CGPointMake(10,10);
        self.label.frame = newFrame;

        newFrame = self.imgView.frame;
        newFrame.origin = CGPointMake(10, self.label.frame.origin.y + self.label.frame.size.height + 10);
        self.imgView.frame = newFrame;

        newFrame = self.button.frame;
        newFrame.origin = CGPointMake(self.imgView.frame.origin.x + self.imgView.frame.size.width+ 10, self.label.frame.origin.y + self.label.frame.size.height + 10);
        self.button.frame = newFrame;
    }
    return self;
}

- (UILabel *)label
{
    if (!_label) {
        _label = ({
            UILabel *lbl = [[UILabel alloc] init];
            lbl.font = [UIFont systemFontOfSize:12];
            lbl.text = @"clean and easy view creation";
            [lbl sizeToFit];
            lbl;
        });
    }

    return _label;
}

- (UIImageView *)imgView
{
    if (!_imgView) {
        _imgView = ({
            UIImageView *imgV = [[UIImageView alloc] init];
            imgV.image = [UIImage imageNamed:@"someImage"];
            imgV.backgroundColor = [UIColor blackColor];

            CGRect newFrame = imgV.frame;
            newFrame.size = CGSizeMake(50, 50);
            imgV.frame = newFrame;
            imgV;
        });
    }
    return _imgView;
}

- (UIButton *)button
{
    if (!_button) {
        _button = ({
            UIButton *btn = [[UIButton alloc] init];
            [btn setTitle:@"Release Label and ImageView" forState:UIControlStateNormal];
            [btn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
            [btn addTarget:self action:@selector(touchButton:) forControlEvents:UIControlEventTouchUpInside];
            [btn sizeToFit];
            btn;
        });
    }
    return _button;
}

- (void)touchButton:(id)sender
{
    [self.label removeFromSuperview];
    self.label = nil;

    [self.imgView removeFromSuperview];
    self.imgView = nil;
}

@end

So what do you prefer now?

Contribution

Actually this is my first open-source contribution and I love to get yours too.

send me pull requests or give me an idea to make this better!

Usage

To run the example project, clone the repo, and run pod install from the Example directory first.

Installation

HCViewEasyMake is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod "HCViewEasyMake"

Author

Ryu Heechul, ryuhcii@gmail.com

License

HCViewEasyMake is available under the MIT license. See the LICENSE file for more info.