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Improves UITableView and UICollection view bindings behavior.

This commit is contained in:
Krunoslav Zaher 2016-08-14 23:25:54 +02:00
parent 4b602fd88e
commit bdbcb5bc87
2 changed files with 16 additions and 2 deletions
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9
RxCocoa/iOS/UICollectionView+Rx.swift
View File

@ -142,7 +142,14 @@ extension UICollectionView {
-> (source: O)
-> Disposable {
return { source in
// This is called for sideeffects only, and to make sure delegate proxy is in place when
// data source is being bound.
// This is needed because theoretically the data source subscription itself might
// call `self.rx_delegate`. If that happens, it might cause weird side effects since
// setting data source will set delegate, and UITableView might get into a weird state.
// Therefore it's better to set delegate proxy first, just to be sure.
_ = self.rx_delegate
// Strong reference is needed because data source is in use until result subscription is disposed
return source.subscribeProxyDataSourceForObject(self, dataSource: dataSource, retainDataSource: true) { [weak self] (_: RxCollectionViewDataSourceProxy, event) -> Void in
guard let collectionView = self else {
return

9
RxCocoa/iOS/UITableView+Rx.swift
View File

@ -145,7 +145,14 @@ extension UITableView {
-> (source: O)
-> Disposable {
return { source in
// There needs to be a strong retaining here because
// This is called for sideeffects only, and to make sure delegate proxy is in place when
// data source is being bound.
// This is needed because theoretically the data source subscription itself might
// call `self.rx_delegate`. If that happens, it might cause weird side effects since
// setting data source will set delegate, and UITableView might get into a weird state.
// Therefore it's better to set delegate proxy first, just to be sure.
_ = self.rx_delegate
// Strong reference is needed because data source is in use until result subscription is disposed
return source.subscribeProxyDataSourceForObject(self, dataSource: dataSource, retainDataSource: true) { [weak self] (_: RxTableViewDataSourceProxy, event) -> Void in
guard let tableView = self else {
return