UILabel replacement with fine-grain appear/disappear animation

Related tags

Label ZCAnimatedLabel
Overview

ZCAnimatedLabel

UILabel-like view with easy to extend appear/disappear animation

Features

  • Rich text support (with NSAttributedString)
  • Group aniamtion by character/word/line
  • Customizable animation start delay for each text block
  • Great performance, only changed area is redrawn
  • Optional layer-based implementation
  • 3D/Geometry transform support (layer based only)
  • iOS 5+ compatibility

Demo

  • Default

image

  • Fall

image

  • Duang/Spring

image

  • Flyin

image

  • Focus

image

  • Shapeshift

image

  • Reveal

image

  • Thrown

image

  • Transparency

image

  • Spin

image

  • Dash

image

  • More to come

How to use

ZCAnimatedLabel is available via CocoaPods. If you don't need all the effect subclasses, simply drag ZCAnimatedLabel.(h|m), ZCCoreTextLayout.(h|m) and ZCEasingUtil.(h|m) into your project and start customizing your own.

Subclassing

ZCAnimatedLabel has two modes: non-layer based and layer based. In the first mode, ZCAnimatedLabel is a flat UIView, every stage of animation is drawn using Core Graphics, you can customize redraw area for your animation for better performance. Following methods can be overriden:

  • - (void) textBlockAttributesInit: (ZCTextBlock *) textBlock;
  • - (void) appearStateDrawingForRect: (CGRect) rect textBlock: (ZCTextBlock *) textBlock;
  • - (void) disappearStateDrawingForRect: (CGRect) rect textBlock: (ZCTextBlock *) textBlock;
  • - (CGRect) redrawAreaForRect: (CGRect) rect textBlock: (ZCTextBlock *) textBlock;

Second option is layer based, where each text block is a simple CALayer, 3D tranform is possible in this mode by setting layer's transform property, if redraw area is bigger and not too many text blocks, this can achive a performance gain. Set self.layerBased to YES and override following methods for customization:

  • - (void) textBlockAttributesInit: (ZCTextBlock *) textBlock;
  • - (void) appearStateLayerChangesForTextBlock: (ZCTextBlock *) textBlock;
  • - (void) disappearLayerStateChangesForTextBlock: (ZCTextBlock *) textBlock;

Todo

  • Merge CALayers no longer animating into a single backing store and reuse CALayer for animating layers. (Even better performance for layerBased implementation)
  • More Effects, possily glyph related ones
  • Use core animation emmiter

Thanks to

  • LTMorhpingLabel for heavy inspiration. If you like ZCAnimatedLabel, you should definitely this one out.
  • AGGeometryKit for arbitrary shape 3D transform code piece used in ZCDashLabel
Comments
  • Set Box Size before set text

    Set Box Size before set text

    I am using auto-layout so I need to set the box size before or at same time the text is set. Size to fit is not working for me, I don't know why.

    Because I am using NSAttributedText and oficial apple methods to get the proper size are not working always as expected, after researching I found this works great.

    Feel free to consider adding this to get the proper text size at setText time.

    CTFramesetterRef framesetter = CTFramesetterCreateWithAttributedString((__bridge CFAttributedStringRef)attributedString);
CGSize targetSize = CGSizeMake(320, CGFLOAT_MAX);
CGSize fitSize = CTFramesetterSuggestFrameSizeWithConstraints(framesetter, CFRangeMake(0, [attributedString length]),NULL, targetSize, NULL);
CFRelease(framesetter);
    opened by gastonmorixe 2
  • TextColor From CocoaPods

    TextColor From CocoaPods

    Really thanks for sharing this . But when I use Podfile to access this , my textColor is always black. Then I download it from github and copy lib to my project , my textColor change finally T_T

    opened by rex5207 1
  • Not working well for NSAttributedString.

    Not working well for NSAttributedString.

    NSAttributed text cut-off badly when Disappearing the animation. Like:

    I have write a Attribute text "yourself" with text size 72 with font name "Empire Crown Condensed" and struck size 2. While disappearing the animation with "ZCShapeshiftLabel" the text is cutting off.

    Another example is I did write the text: "The fact that you have a great way to keep it real by yourself " with font size more then 60 and font name "Ethnocentric". I am showing text 2 words at a time and it cuts off very badly with "ZCShapeshiftLabel" and "ZCDuangLabel" animation while Disappearing the text.

    Thanks.

    opened by gurjitdhiman 0
  • Cannot assign text

    Cannot assign text

    Hello, i decided to try this library which looked really awesome. I m working on swift 3, setted up a bridge , and imported all the h files on it I created label programatically, but i was not able to change the text of it. .text or .attributedString, neither of 2 label properties worked I understand this project is probably deprecated, but anyway this looks the only library which supports multi line labels, so i would really like to see it working. Thank you for attention

    opened by siideffect 2
  • ZCTransparencyLabel disappearance animation not working

    ZCTransparencyLabel disappearance animation not working

    I'm using ZCTransparencyLabel in my application, but apparently disappearance animation has some kind of bug since it just stops working in the middle of animation, then stuck for a moment and disappear completely.

    I wish somebody could look into that.

    opened by s1ddok 1
Owner
Chen
Chen
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