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Improve PagerNode sample project

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This commit is contained in:
Michael Schneider 2016-04-27 15:47:07 -07:00
parent 1c6686e5d6
commit 1f55ef8945
2 changed files with 31 additions and 13 deletions
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2
examples/PagerNode/Sample/ViewController.h
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@ -11,6 +11,6 @@
#import <AsyncDisplayKit/AsyncDisplayKit.h> #import <AsyncDisplayKit/AsyncDisplayKit.h>
@interface ViewController : ASViewController @interface ViewController : ASViewController<ASPagerNode *>
@end @end

42
examples/PagerNode/Sample/ViewController.m
View File

@ -15,9 +15,14 @@
#import "PageNode.h" #import "PageNode.h"
@interface ViewController () <ASPagerNodeDataSource> static UIColor *randomColor() {
CGFloat hue = ( arc4random() % 256 / 256.0 ); // 0.0 to 1.0
CGFloat saturation = ( arc4random() % 128 / 256.0 ) + 0.5; // 0.5 to 1.0, away from white
CGFloat brightness = ( arc4random() % 128 / 256.0 ) + 0.5; // 0.5 to 1.0, away from black
return [UIColor colorWithHue:hue saturation:saturation brightness:brightness alpha:1];
}
- (ASPagerNode *)node; @interface ViewController () <ASPagerNodeDataSource>
@end @end
@ -25,19 +30,30 @@
- (instancetype)init - (instancetype)init
{ {
if (!(self = [super initWithNode:[[ASPagerNode alloc] init]])) self = [super initWithNode:[[ASPagerNode alloc] init]];
return nil; if (self == nil) {
return self;
}
[self node].dataSource = self;
self.title = @"Pages"; self.title = @"Pages";
self.node.dataSource = self;
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Next" style:UIBarButtonItemStylePlain target:self action:@selector(scrollToNextPage:)];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Previous" style:UIBarButtonItemStylePlain target:self action:@selector(scrollToPreviousPage:)];
return self; return self;
} }
- (ASPagerNode *)node #pragma mark - Actions
- (void)scrollToNextPage:(id)sender
{ {
return (ASPagerNode *)[super node]; [self.node scrollToPageAtIndex:self.node.currentPageIndex+1 animated:YES];
}
- (void)scrollToPreviousPage:(id)sender
{
[self.node scrollToPageAtIndex:self.node.currentPageIndex-1 animated:YES];
} }
#pragma mark - ASPagerNodeDataSource #pragma mark - ASPagerNodeDataSource
@ -47,11 +63,13 @@
return 5; return 5;
} }
- (ASCellNode *)pagerNode:(ASPagerNode *)pagerNode nodeAtIndex:(NSInteger)index - (ASCellNodeBlock)pagerNode:(ASPagerNode *)pagerNode nodeBlockAtIndex:(NSInteger)index
{ {
PageNode *page = [[PageNode alloc] init]; return ^{
page.backgroundColor = [UIColor blueColor]; PageNode *page = [[PageNode alloc] init];
return page; page.backgroundColor = randomColor();
return page;
};
} }
@end @end