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feat:add CollectionDemo

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pengfei.zhou
2019-11-28 14:44:15 +08:00
parent f0de868a34
commit f2b4ba23c4
5 changed files with 99 additions and 6 deletions
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50
iOS/Pod/Classes/Shader/DoricCollectionNode.m
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@@ -40,6 +40,7 @@ - (void)layoutSelf:(CGSize)targetSize {
@interface DoricCollectionNode () <UICollectionViewDataSource, UICollectionViewDelegateFlowLayout>
@property(nonatomic, strong) NSMutableDictionary <NSNumber *, NSString *> *itemViewIds;
@property(nonatomic, strong) NSMutableDictionary <NSNumber *, NSValue *> *itemSizeInfo;
@property(nonatomic, assign) NSUInteger itemCount;
@property(nonatomic, assign) NSUInteger batchCount;
@end
@@ -55,7 +56,7 @@ - (instancetype)initWithContext:(DoricContext *)doricContext {
- (UICollectionView *)build {
UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
[flowLayout setScrollDirection:UICollectionViewScrollDirectionHorizontal];
[flowLayout setScrollDirection:UICollectionViewScrollDirectionVertical];
return [[[DoricCollectionView alloc] initWithFrame:CGRectZero
collectionViewLayout:flowLayout]
@@ -72,7 +73,7 @@ - (void)blendView:(UICollectionView *)view forPropName:(NSString *)name propValu
if ([@"itemCount" isEqualToString:name]) {
self.itemCount = [prop unsignedIntegerValue];
[self.view reloadData];
} else if ([@"renderPage" isEqualToString:name]) {
} else if ([@"renderItem" isEqualToString:name]) {
[self.itemViewIds removeAllObjects];
[self clearSubModel];
[self.view reloadData];
@@ -138,5 +139,50 @@ - (void)blendSubNode:(NSDictionary *)subModel {
}];
}
- (void)callItem:(NSUInteger)position size:(CGSize)size {
NSValue *old = self.itemSizeInfo[@(position)];
if (old && CGSizeEqualToSize([old CGSizeValue], size)) {
return;
}
self.itemSizeInfo[@(position)] = [NSValue valueWithCGSize:size];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:position inSection:0];
[UIView performWithoutAnimation:^{
[self.view reloadItemsAtIndexPaths:@[indexPath]];
}];
}
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
return self.itemCount;
}
- (__kindof UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
NSUInteger position = (NSUInteger) indexPath.row;
NSDictionary *model = [self itemModelAt:position];
NSDictionary *props = model[@"props"];
DoricCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"doricCell" forIndexPath:indexPath];
if (!cell.viewNode) {
DoricCollectionItemNode *itemNode = [[DoricCollectionItemNode alloc] initWithContext:self.doricContext];
[itemNode initWithSuperNode:self];
cell.viewNode = itemNode;
[cell.contentView addSubview:itemNode.view];
}
DoricCollectionItemNode *node = cell.viewNode;
node.viewId = model[@"id"];
[node blend:props];
CGSize size = [node.view measureSize:CGSizeMake(collectionView.width, collectionView.height)];
[node.view layoutSelf:size];
[self callItem:position size:size];
return cell;
}
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
NSUInteger position = (NSUInteger) indexPath.row;
NSValue *value = self.itemSizeInfo[@(position)];
if (value) {
return [value CGSizeValue];
} else {
return CGSizeMake(100, 100);
}
}
@end