ability to set and retrieve the currentIndex

AvoGlobal · Aug 6, 2014 · 6de1a5c · 6de1a5c
1 parent fa71c7f
commit 6de1a5c
Show file tree

Hide file tree

Showing 2 changed files with 19 additions and 6 deletions.
diff --git a/Classes/MHYahooParallaxView.h b/Classes/MHYahooParallaxView.h
@@ -56,7 +56,6 @@ typedef enum {
 @interface MHYahooParallaxView : UIView<UICollectionViewDelegate,UICollectionViewDataSource> {
     CGFloat _width;
     CGFloat _height;
-    NSInteger _currentPageIndex;
     CGFloat _pageDivisor;
     NSInteger _dataCount;
 }
@@ -66,11 +65,13 @@ typedef enum {
 @property (nonatomic) MHYahooParallaxViewType parallaxViewType;
 @property (nonatomic) id<MHYahooParallaxViewDatasource> datasource;
 @property (nonatomic) id<MHYahooParallaxViewDelegate> delegate;
+@property (nonatomic) NSInteger currentIndex;
 
 - (id)initWithFrame:(CGRect)frame withViewType:(MHYahooParallaxViewType) viewType;
 
 - (void) registerClass:(__unsafe_unretained Class) cellClass forCellWithReuseIdentifier:(NSString *) reuseIdentifier;
 - (UICollectionViewCell*) cellForItemAtIndexPath:(NSIndexPath*)indexPath;
 - (UICollectionViewCell*) dequeueReusableCellWithReuseIdentifier:(NSString *) reuseIdentifier forIndexPath:(NSIndexPath*)indexPath ;
 
+- (void) setCurrentIndex:(NSInteger)index animated:(BOOL) animated;
 @end
diff --git a/Classes/MHYahooParallaxView.m b/Classes/MHYahooParallaxView.m
@@ -32,6 +32,7 @@ @implementation MHYahooParallaxView
 @synthesize delegate = _delegate;
 @synthesize datasource = _datasource;
 @synthesize parallaxViewType = _parallaxViewType;
+@synthesize currentIndex = _currentIndex;
 
 - (id)initWithFrame:(CGRect)frame {
     return [self initWithFrame:frame withViewType:MHYahooParallaxViewTypeHorizontal];
@@ -95,17 +96,17 @@ - (UICollectionViewCell*) dequeueReusableCellWithReuseIdentifier:(NSString *) re
 
 
 - (void)scrollViewDidScroll:(UIScrollView *)scrollView {
-    _currentPageIndex = scrollView.contentOffset.x/_width;
+    _currentIndex = scrollView.contentOffset.x/_width;
 
 
     if(_parallaxViewType == MHYahooParallaxViewTypeHorizontal){
 
         NSInteger leftIndex = -1;
         NSInteger rightIndex = -1;
 
-        leftIndex = _currentPageIndex;
+        leftIndex = _currentIndex;
 
-        if(_currentPageIndex < (_dataCount - 1)) {
+        if(_currentIndex < (_dataCount - 1)) {
             rightIndex = leftIndex + 1;
         }
 
@@ -124,9 +125,9 @@ - (void)scrollViewDidScroll:(UIScrollView *)scrollView {
         NSInteger topIndex = -1;
         NSInteger bottomIndex = -1;
 
-        topIndex = _currentPageIndex;
+        topIndex = _currentIndex;
 
-        if(_currentPageIndex < (_dataCount - 1)) {
+        if(_currentIndex < (_dataCount - 1)) {
             bottomIndex = topIndex + 1;
         }
 
@@ -142,7 +143,18 @@ - (void)scrollViewDidScroll:(UIScrollView *)scrollView {
     }
 }
 
+- (void) setCurrentIndex:(NSInteger)index {
+    [self setCurrentIndex:index animated:NO];
+}
+
+- (void) setCurrentIndex:(NSInteger)index animated:(BOOL) animated {
+     _currentIndex = index;
+    [_parallaxCollectionView setContentOffset:CGPointMake(index * _width, 0.0f) animated:animated];
+}
+
 - (void) dealloc {
     _parallaxCollectionView = nil;
 }
+
+
 @end