schmittsfn/ascrolllayer

This is an attempt to create an open source alternative to UIScrollView by implementing it as a cocos2d layer. The idea is to make it fully featured (e.g. rubber band, smooth scrolling).

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0xc yrs writing software

Programming Languages:

∙ Swift
∙ Objective-C
∙ C++

Core Technologies:

∙ SwiftUI
∙ Combine
∙ CarPlay
∙ tvOS
∙ Core Data
∙ Core Graphics

Cloud & Backend:

∙ Firebase
∙ AWS
∙ Heroku
∙ DigitalOcean

Design & Collaboration:

∙ Figma
∙ Jira
∙ Trello
∙ Notion
∙ Slack

ascrolllayer's Issues

ScrollLayer always bounces back when content height is less than winSize height

Nice class, works well, but found a bug.

I'm trying to create a horizontal scrolllayer which is wider than the screen (600 points), but only 150 points high (less than the windowSize). When I do this the scrolllayer always bounces back, even though theres still content to be scrolled.

Code (this sets the height of the content to be 1 less then the winSize):

    AScrollLayer *scrollLayer = [AScrollLayer node];

    //scrollLayer.horizontalScrollDisabled = YES;
    scrollLayer.verticalScrollDisabled = YES;
    scrollLayer.contentSize = CGSizeMake(600, [[CCDirector sharedDirector] winSize].height-1);
    [self addChild:scrollLayer];
    //[scrollLayer setRelativePosition:ccp(50, 50) type:kCCBPositionTypePercent];


    CCLayerColor *colorLayer = [CCLayerColor layerWithColor:ccc4(255, 0, 0, 255) width:600 height:[[CCDirector sharedDirector] winSize].height-1];
    colorLayer.anchorPoint = CGPointZero;
    [scrollLayer.contentLayer addChild:colorLayer];

Expected result:
ScrollLayer should scroll horizontally for a bit as 200 pixels are outside the iphone4s screen

Actual result:
ScrollLayer immediately bounces back.