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More progress with the Swift example

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This commit is contained in:
Adlai Holler 2016-02-01 12:10:38 -08:00
parent 67212c69b7
commit 8f10d8ea99
7 changed files with 177 additions and 27 deletions
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34
examples/Kittens/Sample/ViewController.m
View File

@ -165,28 +165,24 @@ static const NSInteger kMaxLitterSize = 100; // max number of kitten cell
- (void)tableView:(UITableView *)tableView willBeginBatchFetchWithContext:(ASBatchContext *)context
{
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
sleep(1);
dispatch_async(dispatch_get_main_queue(), ^{
// populate a new array of random-sized kittens
NSArray *moarKittens = [self createLitterWithSize:kLitterBatchSize];
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
// populate a new array of random-sized kittens
NSArray *moarKittens = [self createLitterWithSize:kLitterBatchSize];
NSMutableArray *indexPaths = [[NSMutableArray alloc] init];
// find number of kittens in the data source and create their indexPaths
NSInteger existingRows = _kittenDataSource.count + 1;
for (NSInteger i = 0; i < moarKittens.count; i++) {
[indexPaths addObject:[NSIndexPath indexPathForRow:existingRows + i inSection:0]];
}
NSMutableArray *indexPaths = [[NSMutableArray alloc] init];
// find number of kittens in the data source and create their indexPaths
NSInteger existingRows = _kittenDataSource.count + 1;
for (NSInteger i = 0; i < moarKittens.count; i++) {
[indexPaths addObject:[NSIndexPath indexPathForRow:existingRows + i inSection:0]];
}
// add new kittens to the data source & notify table of new indexpaths
[_kittenDataSource addObjectsFromArray:moarKittens];
[tableView insertRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationFade];
// add new kittens to the data source & notify table of new indexpaths
[_kittenDataSource addObjectsFromArray:moarKittens];
[tableView insertRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationFade];
[context completeBatchFetching:YES];
});
[context completeBatchFetching:YES];
});
}

9
examples/Swift/Sample.xcodeproj/project.pbxproj
View File

@ -13,6 +13,7 @@
6C5053DB19EE266A00E385DE /* Default-667h@2x.png in Resources */ = {isa = PBXBuildFile; fileRef = 6C5053D919EE266A00E385DE /* Default-667h@2x.png */; };
6C5053DC19EE266A00E385DE /* Default-736h@3x.png in Resources */ = {isa = PBXBuildFile; fileRef = 6C5053DA19EE266A00E385DE /* Default-736h@3x.png */; };
92E46E91A7D47AEC5B2B2F55 /* Pods.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 7FC29F18AE7C8C204A5CD4F2 /* Pods.framework */; };
CCB01CAB1C5FEA6E00CA64C4 /* TailLoadingCellNode.swift in Sources */ = {isa = PBXBuildFile; fileRef = CCB01CAA1C5FEA6E00CA64C4 /* TailLoadingCellNode.swift */; };
/* End PBXBuildFile section */
/* Begin PBXFileReference section */
@ -25,6 +26,7 @@
6C5053DA19EE266A00E385DE /* Default-736h@3x.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = "Default-736h@3x.png"; sourceTree = SOURCE_ROOT; };
7FC29F18AE7C8C204A5CD4F2 /* Pods.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods.framework; sourceTree = BUILT_PRODUCTS_DIR; };
841652076B3E9351337AA7C7 /* Pods.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = Pods.debug.xcconfig; path = "Pods/Target Support Files/Pods/Pods.debug.xcconfig"; sourceTree = "<group>"; };
CCB01CAA1C5FEA6E00CA64C4 /* TailLoadingCellNode.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TailLoadingCellNode.swift; sourceTree = "<group>"; };
E3EE87D12CE3EF73FAE2EF02 /* Pods.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = Pods.release.xcconfig; path = "Pods/Target Support Files/Pods/Pods.release.xcconfig"; sourceTree = "<group>"; };
/* End PBXFileReference section */
@ -64,6 +66,7 @@
050E7C7019D22E19004363C2 /* Sample */ = {
isa = PBXGroup;
children = (
CCB01CAA1C5FEA6E00CA64C4 /* TailLoadingCellNode.swift */,
050E7C7319D22E19004363C2 /* AppDelegate.swift */,
050E7C7519D22E19004363C2 /* ViewController.swift */,
050E7C7119D22E19004363C2 /* Supporting Files */,
@ -130,7 +133,7 @@
attributes = {
LastSwiftMigration = 0700;
LastSwiftUpdateCheck = 0700;
LastUpgradeCheck = 0600;
LastUpgradeCheck = 0720;
ORGANIZATIONNAME = Facebook;
TargetAttributes = {
050E7C6D19D22E19004363C2 = {
@ -222,6 +225,7 @@
isa = PBXSourcesBuildPhase;
buildActionMask = 2147483647;
files = (
CCB01CAB1C5FEA6E00CA64C4 /* TailLoadingCellNode.swift in Sources */,
050E7C7619D22E19004363C2 /* ViewController.swift in Sources */,
050E7C7419D22E19004363C2 /* AppDelegate.swift in Sources */,
);
@ -250,6 +254,7 @@
"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
COPY_PHASE_STRIP = NO;
ENABLE_STRICT_OBJC_MSGSEND = YES;
ENABLE_TESTABILITY = YES;
GCC_C_LANGUAGE_STANDARD = gnu99;
GCC_DYNAMIC_NO_PIC = NO;
GCC_OPTIMIZATION_LEVEL = 0;
@ -314,6 +319,7 @@
ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
INFOPLIST_FILE = Sample/Info.plist;
LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
PRODUCT_BUNDLE_IDENTIFIER = "com.facebook.AsyncDisplayKit.$(PRODUCT_NAME:rfc1034identifier)";
PRODUCT_NAME = "$(TARGET_NAME)";
};
name = Debug;
@ -325,6 +331,7 @@
ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
INFOPLIST_FILE = Sample/Info.plist;
LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
PRODUCT_BUNDLE_IDENTIFIER = "com.facebook.AsyncDisplayKit.$(PRODUCT_NAME:rfc1034identifier)";
PRODUCT_NAME = "$(TARGET_NAME)";
};
name = Release;

13
examples/Swift/Sample.xcodeproj/xcshareddata/xcschemes/Sample.xcscheme
View File

@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<Scheme
LastUpgradeVersion = "0620"
LastUpgradeVersion = "0720"
version = "1.3">
<BuildAction
parallelizeBuildables = "YES"
@ -23,10 +23,10 @@
</BuildActionEntries>
</BuildAction>
<TestAction
buildConfiguration = "Debug"
selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
shouldUseLaunchSchemeArgsEnv = "YES"
buildConfiguration = "Debug">
shouldUseLaunchSchemeArgsEnv = "YES">
<Testables>
</Testables>
<MacroExpansion>
@ -38,15 +38,18 @@
ReferencedContainer = "container:Sample.xcodeproj">
</BuildableReference>
</MacroExpansion>
<AdditionalOptions>
</AdditionalOptions>
</TestAction>
<LaunchAction
buildConfiguration = "Debug"
selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
launchStyle = "0"
useCustomWorkingDirectory = "NO"
buildConfiguration = "Debug"
ignoresPersistentStateOnLaunch = "NO"
debugDocumentVersioning = "YES"
debugServiceExtension = "internal"
allowLocationSimulation = "YES">
<BuildableProductRunnable
runnableDebuggingMode = "0">
@ -62,10 +65,10 @@
</AdditionalOptions>
</LaunchAction>
<ProfileAction
buildConfiguration = "Release"
shouldUseLaunchSchemeArgsEnv = "YES"
savedToolIdentifier = ""
useCustomWorkingDirectory = "NO"
buildConfiguration = "Release"
debugDocumentVersioning = "YES">
<BuildableProductRunnable
runnableDebuggingMode = "0">

10
examples/Swift/Sample.xcworkspace/contents.xcworkspacedata generated Normal file
View File

@ -0,0 +1,10 @@
<?xml version="1.0" encoding="UTF-8"?>
<Workspace
version = "1.0">
<FileRef
location = "group:Sample.xcodeproj">
</FileRef>
<FileRef
location = "group:Pods/Pods.xcodeproj">
</FileRef>
</Workspace>

2
examples/Swift/Sample/Info.plist
View File

@ -7,7 +7,7 @@
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIdentifier</key>
<string>com.facebook.AsyncDisplayKit.$(PRODUCT_NAME:rfc1034identifier)</string>
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>

53
examples/Swift/Sample/TailLoadingCellNode.swift Normal file
View File

@ -0,0 +1,53 @@
//
// TailLoadingCellNode.swift
// Sample
//
// Created by Adlai Holler on 2/1/16.
// Copyright © 2016 Facebook. All rights reserved.
//
import AsyncDisplayKit
import UIKit
final class TailLoadingCellNode: ASCellNode {
let spinner = SpinnerNode()
let text = ASTextNode()
override init() {
super.init()
addSubnode(text)
text.attributedString = NSAttributedString(
string: "Loading…",
attributes: [
NSFontAttributeName: UIFont.systemFontOfSize(12),
NSForegroundColorAttributeName: UIColor.lightGrayColor(),
NSKernAttributeName: -0.3
])
addSubnode(spinner)
}
override func layoutSpecThatFits(constrainedSize: ASSizeRange) -> ASLayoutSpec {
return ASStackLayoutSpec(
direction: .Horizontal,
spacing: 16,
justifyContent: .Center,
alignItems: .Center,
children: [ text, spinner ])
}
}
final class SpinnerNode: ASDisplayNode {
var activityIndicatorView: UIActivityIndicatorView {
return view as! UIActivityIndicatorView
}
override init() {
super.init(viewBlock: { UIActivityIndicatorView(activityIndicatorStyle: .Gray) }, didLoadBlock: nil)
preferredFrameSize.height = 32
}
override func didLoad() {
super.didLoad()
activityIndicatorView.startAnimating()
}
}

83
examples/Swift/Sample/ViewController.swift
View File

@ -14,10 +14,23 @@ import AsyncDisplayKit
final class ViewController: ASViewController, ASTableDataSource, ASTableDelegate {
struct State {
var rowCount: Int
var showingSpinner: Bool
static let empty = State(rowCount: 20, showingSpinner: false)
}
enum Action {
case BeginBatchFetch
case EndBatchFetch(resultCount: Int)
}
var tableNode: ASTableNode {
return node as! ASTableNode
}
private(set) var state: State = .empty
init() {
super.init(node: ASTableNode())
tableNode.delegate = self
@ -35,6 +48,11 @@ final class ViewController: ASViewController, ASTableDataSource, ASTableDelegate
// MARK: ASTableView data source and delegate.
func tableView(tableView: ASTableView, nodeForRowAtIndexPath indexPath: NSIndexPath) -> ASCellNode {
NSLog("Number of rows %d", tableView.numberOfRowsInSection(0))
if state.showingSpinner && indexPath.row == tableView.numberOfRowsInSection(0) - 1 {
return TailLoadingCellNode()
}
let node = ASTextCellNode()
node.text = String(format: "[%ld.%ld] says hello!", indexPath.section, indexPath.row)
@ -46,7 +64,70 @@ final class ViewController: ASViewController, ASTableDataSource, ASTableDelegate
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 20
var count = state.rowCount
if state.showingSpinner {
count += 1
}
return count
}
func tableView(tableView: ASTableView, willBeginBatchFetchWithContext context: ASBatchContext) {
context.cancelBatchFetching()
dispatch_async(dispatch_get_main_queue()) {
let oldState = self.state
self.state = ViewController.handleAction(.BeginBatchFetch, fromState: oldState)
self.render(oldState)
}
return;
let time = dispatch_time(DISPATCH_TIME_NOW, Int64(NSTimeInterval(NSEC_PER_SEC) * 3))
dispatch_after(time, dispatch_get_main_queue()) {
let action = Action.EndBatchFetch(resultCount: 20)
let oldState = self.state
self.state = ViewController.handleAction(action, fromState: oldState)
self.render(oldState)
context.completeBatchFetching(true)
}
}
func render(oldState: State) {
let tableView = tableNode.view
tableView.beginUpdates()
// Add or remove items
let rowCountChange = state.rowCount - oldState.rowCount
if rowCountChange > 0 {
let indexPaths = (oldState.rowCount..<state.rowCount).map { index in
NSIndexPath(forRow: index, inSection: 0)
}
tableView.insertRowsAtIndexPaths(indexPaths, withRowAnimation: .None)
} else if rowCountChange < 0 {
assertionFailure("Deleting rows is not implemented. YAGNI.")
}
// Add or remove spinner.
if state.showingSpinner && !oldState.showingSpinner {
if state.showingSpinner {
// Add spinner.
let spinnerIndexPath = NSIndexPath(forRow: state.rowCount, inSection: 0)
tableView.insertRowsAtIndexPaths([ spinnerIndexPath ], withRowAnimation: .None)
} else {
// Remove spinner.
let spinnerIndexPath = NSIndexPath(forRow: oldState.rowCount, inSection: 0)
tableView.deleteRowsAtIndexPaths([ spinnerIndexPath ], withRowAnimation: .None)
}
}
tableView.endUpdatesAnimated(false, completion: nil)
}
static func handleAction(action: Action, var fromState state: State) -> State {
switch action {
case .BeginBatchFetch:
state.showingSpinner = true
case let .EndBatchFetch(resultCount):
state.rowCount += resultCount
state.showingSpinner = false
}
return state
}
}