iOSアプリケーションに以下のアニメーションを追加する必要があります。UITableView
と一緒にスクロールバーを使用してトップアニメーションとボトムアニメーションを達成しましたが、4,UIViews
が単一のアニメーションパート水平線。助言がありますか?目的のCでビューベースのアニメーションを作成する方法は?
http://www.image-maps.com/m/private/0/af8u4ulika9siddnf6k6hhrtg2_untitled-2.gif
コード: -
@implementation AnimatedView {
UIScrollView *mainScroll;
UIScrollView *backgroundScrollView;
UILabel *_textLabel;
UITableView *_commentsTableView;
UIView *menuView;
UIView *_commentsViewContainer;
UIView *fadeView;
UIImageView *imageView;
NSMutableArray *comments;
}
- (id)init {
self = [super init];
if (self) {
_mainScrollView = [[UIScrollView alloc] initWithFrame:[UIApplication sharedApplication].keyWindow.frame];
self.view = _mainScrollView;
_backgroundScrollView = [[UIScrollView alloc] initWithFrame:HEADER_INIT_FRAME];
imageView = [[UIImageView alloc] initWithFrame:HEADER_INIT_FRAME];
fadeView = [[UIView alloc] initWithFrame:imageView.frame];
_textLabel = [[UILabel alloc] initWithFrame:CGRectMake(10.0f, 100.0f, 150.0f, 25.0f)];
menuView = [[UIView alloc] initWithFrame:CGRectMake(0,_textLabel.frame.size.height+150, self.view.frame.size.width+30, 180)];
[_backgroundScrollView addSubview:imageView];
[_backgroundScrollView addSubview:fadeView];
[_backgroundScrollView addSubview:menuView];
[_backgroundScrollView addSubview:_textLabel];
_commentsViewContainer = [[UIView alloc] init];
_commentsTableView = [[UITableView alloc] init];
_commentsTableView.scrollEnabled = NO;
_commentsTableView.tableFooterView = [[UIView alloc] initWithFrame:CGRectZero];
[self.view addSubview:_backgroundScrollView];
[_commentsViewContainer addSubview:_commentsTableView];
[self.view addSubview:_commentsViewContainer];
// fake data!
comments = [@[@"Array for tableview"] mutableCopy];
}
return self;
}
#pragma mark Scroll
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
CGFloat delta = 0.0f;
CGRect rect = HEADER_INIT_FRAME;
// Here is where I do the "Zooming" image and the quick fade out the text and toolbar
if (scrollView.contentOffset.y < 0.0f) {
delta = fabs(MIN(0.0f, _mainScrollView.contentOffset.y));
_backgroundScrollView.frame = CGRectMake(CGRectGetMinX(rect) - delta/2.0f, CGRectGetMinY(rect) - delta, CGRectGetWidth(rect) + delta, CGRectGetHeight(rect) + delta);
[_commentsTableView setContentOffset:(CGPoint){0,0} animated:NO];
} else {
delta = _mainScrollView.contentOffset.y;
_textLabel.alpha = 1.0f;
CGFloat backgroundScrollViewLimit = _backgroundScrollView.frame.size.height - kBarHeight;
// Here I check whether or not the user has scrolled passed the limit where I want to stick the header, if they have then I move the frame with the scroll view
// to give it the sticky header look
if (delta > backgroundScrollViewLimit) {
_backgroundScrollView.frame = (CGRect) {.origin = {0, delta - _backgroundScrollView.frame.size.height + kBarHeight}, .size = {self.view.frame.size.width, HEADER_HEIGHT}};
_commentsViewContainer.frame = (CGRect){.origin = {0, CGRectGetMinY(_backgroundScrollView.frame) + CGRectGetHeight(_backgroundScrollView.frame)}, .size = _commentsViewContainer.frame.size };
_commentsTableView.contentOffset = CGPointMake (0, delta - backgroundScrollViewLimit);
CGFloat contentOffsetY = -backgroundScrollViewLimit * kBackgroundParallexFactor;
[_backgroundScrollView setContentOffset:(CGPoint){0,contentOffsetY} animated:NO];
}
else {
_backgroundScrollView.frame = rect;
_commentsViewContainer.frame = (CGRect){.origin = {0, CGRectGetMinY(rect) + CGRectGetHeight(rect)}, .size = _commentsViewContainer.frame.size };
[_commentsTableView setContentOffset:(CGPoint){0,0} animated:NO];
[_backgroundScrollView setContentOffset:CGPointMake(0, -delta * kBackgroundParallexFactor)animated:NO];
}
}
}
- (void)viewDidAppear:(BOOL)animated {
_mainScrollView.contentSize = CGSizeMake(CGRectGetWidth(self.view.frame), _commentsTableView.contentSize.height + CGRectGetHeight(_backgroundScrollView.frame));
}
何よりも優れていますか? –
@rckoenesは現在の達成部分を追加しました。 – iOS91
コードを投稿し、より良いと思う場所を指定します。 – rckoenes