Lists files in Documents directory, automatically updates when files are added or removed
This commit is contained in:
Riley Testut
parent
aeed83fca5
commit
46bf220359
@ -7,6 +7,7 @@
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objects = {
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/* Begin PBXBuildFile section */
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BF46894F1AAC46EF00A2586D /* DirectoryContentsDataSource.swift in Sources */ = {isa = PBXBuildFile; fileRef = BF46894E1AAC46EF00A2586D /* DirectoryContentsDataSource.swift */; };
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BFFA71DD1AAC406100EE9DD1 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = BFFA71DC1AAC406100EE9DD1 /* AppDelegate.swift */; };
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BFFA71DF1AAC406100EE9DD1 /* GamesViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = BFFA71DE1AAC406100EE9DD1 /* GamesViewController.swift */; };
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BFFA71E21AAC406100EE9DD1 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = BFFA71E01AAC406100EE9DD1 /* Main.storyboard */; };
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@ -15,6 +16,7 @@
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/* End PBXBuildFile section */
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/* Begin PBXFileReference section */
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BF46894E1AAC46EF00A2586D /* DirectoryContentsDataSource.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = DirectoryContentsDataSource.swift; sourceTree = "<group>"; };
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BFFA71D71AAC406100EE9DD1 /* Delta.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Delta.app; sourceTree = BUILT_PRODUCTS_DIR; };
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BFFA71DB1AAC406100EE9DD1 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
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BFFA71DC1AAC406100EE9DD1 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
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@ -35,6 +37,15 @@
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/* End PBXFrameworksBuildPhase section */
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/* Begin PBXGroup section */
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BF46894D1AAC469800A2586D /* Game Selection */ = {
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isa = PBXGroup;
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children = (
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BFFA71DE1AAC406100EE9DD1 /* GamesViewController.swift */,
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BF46894E1AAC46EF00A2586D /* DirectoryContentsDataSource.swift */,
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);
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name = "Game Selection";
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sourceTree = "<group>";
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};
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BFFA71CE1AAC406100EE9DD1 = {
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isa = PBXGroup;
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children = (
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@ -55,7 +66,7 @@
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isa = PBXGroup;
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children = (
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BFFA71DC1AAC406100EE9DD1 /* AppDelegate.swift */,
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BFFA71DE1AAC406100EE9DD1 /* GamesViewController.swift */,
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BF46894D1AAC469800A2586D /* Game Selection */,
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BFFA71E01AAC406100EE9DD1 /* Main.storyboard */,
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BFFA71E31AAC406100EE9DD1 /* Images.xcassets */,
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BFFA71E51AAC406100EE9DD1 /* LaunchScreen.xib */,
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@ -144,6 +155,7 @@
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files = (
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BFFA71DF1AAC406100EE9DD1 /* GamesViewController.swift in Sources */,
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BFFA71DD1AAC406100EE9DD1 /* AppDelegate.swift in Sources */,
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BF46894F1AAC46EF00A2586D /* DirectoryContentsDataSource.swift in Sources */,
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);
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runOnlyForDeploymentPostprocessing = 0;
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};
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@ -237,6 +249,7 @@
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ENABLE_STRICT_OBJC_MSGSEND = YES;
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GCC_C_LANGUAGE_STANDARD = gnu99;
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GCC_NO_COMMON_BLOCKS = YES;
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GCC_SYMBOLS_PRIVATE_EXTERN = NO;
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GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
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GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
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GCC_WARN_UNDECLARED_SELECTOR = YES;
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@ -289,6 +302,7 @@
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BFFA71F81AAC406100EE9DD1 /* Release */,
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);
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defaultConfigurationIsVisible = 0;
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defaultConfigurationName = Release;
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};
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/* End XCConfigurationList section */
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};
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@ -25,7 +25,7 @@
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<!--Games-->
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<scene sceneID="JrP-w9-a3P">
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<objects>
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<tableViewController id="pG3-6q-BDc" sceneMemberID="viewController">
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<tableViewController id="pG3-6q-BDc" customClass="GamesViewController" customModule="Delta" customModuleProvider="target" sceneMemberID="viewController">
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<tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="44" sectionHeaderHeight="22" sectionFooterHeight="22" id="RlI-ct-T2T">
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<rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
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<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
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121
Delta/DirectoryContentsDataSource.swift
Normal file
121
Delta/DirectoryContentsDataSource.swift
Normal file
@ -0,0 +1,121 @@
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//
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// DirectoryContentsDataSource.swift
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// Delta
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//
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// Created by Riley Testut on 3/8/15.
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// Copyright (c) 2015 Riley Testut. All rights reserved.
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//
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import UIKit
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import Foundation
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public extension DirectoryContentsDataSource
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{
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func URLAtIndexPath(indexPath: NSIndexPath) -> NSURL
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{
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let URL = self.directoryContents[indexPath.row]
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return URL
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}
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}
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public class DirectoryContentsDataSource: NSObject
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{
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public let directoryURL: NSURL
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public var tableViewCellIdentifier: String = "Cell"
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public var contentsUpdateHandler: (Void -> Void)?
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public var cellConfigurationBlock: ((UITableViewCell, NSIndexPath, NSURL) -> Void)?
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private let fileDescriptor: Int32
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private let directoryMonitorDispatchQueue: dispatch_queue_t
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private let directoryMonitorDispatchSource: dispatch_source_t!
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private var directoryContents: [NSURL]
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required public init?(directoryURL: NSURL)
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{
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self.directoryURL = directoryURL
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self.fileDescriptor = open(self.directoryURL.fileSystemRepresentation, O_EVTONLY)
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self.directoryMonitorDispatchQueue = dispatch_queue_create("com.rileytestut.DirectoryContentsDataSource", DISPATCH_QUEUE_SERIAL)
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self.directoryMonitorDispatchSource = dispatch_source_create(DISPATCH_SOURCE_TYPE_VNODE, UInt(self.fileDescriptor), DISPATCH_VNODE_WRITE, self.directoryMonitorDispatchQueue)
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self.directoryContents = [NSURL]()
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super.init()
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if self.fileDescriptor < 0
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{
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return nil
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}
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if self.directoryMonitorDispatchSource == nil
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{
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close(self.fileDescriptor);
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return nil
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}
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dispatch_source_set_event_handler(self.directoryMonitorDispatchSource, {
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self.didUpdateDirectoryContents()
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});
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dispatch_source_set_cancel_handler(self.directoryMonitorDispatchSource, {
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close(self.fileDescriptor);
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});
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dispatch_resume(self.directoryMonitorDispatchSource);
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self.didUpdateDirectoryContents()
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}
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deinit
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{
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if self.fileDescriptor >= 0
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{
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close(self.fileDescriptor);
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}
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if self.directoryMonitorDispatchSource != nil
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{
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dispatch_source_cancel(self.directoryMonitorDispatchSource);
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}
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}
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}
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private extension DirectoryContentsDataSource
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{
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func didUpdateDirectoryContents()
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{
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var error: NSError? = nil
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var contents = NSFileManager.defaultManager().contentsOfDirectoryAtURL(self.directoryURL, includingPropertiesForKeys: nil, options:NSDirectoryEnumerationOptions.SkipsSubdirectoryDescendants | NSDirectoryEnumerationOptions.SkipsHiddenFiles, error: &error) as! [NSURL]?
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if let contents = contents
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{
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self.directoryContents = contents
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}
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else
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{
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println(error?.userInfo)
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}
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self.contentsUpdateHandler?()
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}
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}
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extension DirectoryContentsDataSource: UITableViewDataSource
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{
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public func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
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{
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return self.directoryContents.count
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}
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public func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
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{
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let tableViewCell = tableView.dequeueReusableCellWithIdentifier(self.tableViewCellIdentifier, forIndexPath: indexPath) as! UITableViewCell
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self.cellConfigurationBlock?(tableViewCell, indexPath, self.URLAtIndexPath(indexPath))
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return tableViewCell
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}
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}
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@ -10,11 +10,56 @@ import UIKit
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class GamesViewController: UITableViewController
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{
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let directoryContentsDataSource: DirectoryContentsDataSource?
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override init(style: UITableViewStyle)
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{
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let error: NSError? = nil;
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let documentsDirectoryURL = NSFileManager.defaultManager().URLsForDirectory(NSSearchPathDirectory.DocumentDirectory, inDomains: NSSearchPathDomainMask.UserDomainMask).first as! NSURL
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self.directoryContentsDataSource = DirectoryContentsDataSource(directoryURL: documentsDirectoryURL)
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super.init(style: style)
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}
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required init(coder aDecoder: NSCoder)
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{
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let error: NSError? = nil;
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let documentsDirectoryURL = NSFileManager.defaultManager().URLsForDirectory(NSSearchPathDirectory.DocumentDirectory, inDomains: NSSearchPathDomainMask.UserDomainMask).first as! NSURL
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self.directoryContentsDataSource = DirectoryContentsDataSource(directoryURL: documentsDirectoryURL)
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super.init(coder: aDecoder)
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}
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override func viewDidLoad()
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{
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super.viewDidLoad()
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// Do any additional setup after loading the view, typically from a nib.
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self.tableView.dataSource = self.directoryContentsDataSource
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self.directoryContentsDataSource!.contentsUpdateHandler = {
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dispatch_async(dispatch_get_main_queue(), {
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self.tableView.reloadData()
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})
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}
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self.directoryContentsDataSource?.cellConfigurationBlock = { (cell, indexPath, URL) in
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cell.textLabel?.text = URL.lastPathComponent
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}
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}
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override func viewDidAppear(animated: Bool)
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{
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super.viewDidAppear(animated)
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if self.directoryContentsDataSource == nil
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{
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let alertController = UIAlertController(title: "Games Directory Invalid", message: "Please ensure the current games directory exists, then restart the app.", preferredStyle: .Alert)
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alertController.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.Cancel, handler: nil))
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self.presentViewController(alertController, animated: true, completion: nil)
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}
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}
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override func didReceiveMemoryWarning()
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