зеркало из https://github.com/xamarin/ios-samples.git
Added a new async sample for LazyTableImages
The sample uses the new async feature to download the application images.
This commit is contained in:
Ryan Alford
Родитель
d140cd357f
Коммит
97669e1576
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//
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// App.cs
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//
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// Author:
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// Alan McGovern <alan@xamarin.com>
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//
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// Copyright 2011, Xamarin Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System;
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using MonoTouch.UIKit;
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namespace LazyTableImages {
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public class App {
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public string Artist { get; set; }
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public UIImage Image { get; set; }
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public Uri ImageUrl { get; set; }
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public string Name { get; set; }
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public Uri Url { get; set; }
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}
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}
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//
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// AppDelegate.cs
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//
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// Author:
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// Alan McGovern <alan@xamarin.com>
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//
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// Copyright 2011, Xamarin Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
// of this software and associated documentation files (the "Software"), to deal
|
||||
// in the Software without restriction, including without limitation the rights
|
||||
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
// copies of the Software, and to permit persons to whom the Software is
|
||||
// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
|
||||
// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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||||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using MonoTouch.Foundation;
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using MonoTouch.UIKit;
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using System.Net;
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using System.Collections.ObjectModel;
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namespace LazyTableImages {
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/// <summary>
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/// The UIApplicationDelegate for the application. This class is responsible for launching the
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/// User Interface of the application, as well as listening (and optionally responding) to
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/// application events from iOS.
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/// </summary>
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[Register ("AppDelegate")]
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public partial class AppDelegate : UIApplicationDelegate {
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static readonly Uri RssFeedUrl = new Uri ("http://phobos.apple.com/WebObjects/MZStoreServices.woa/ws/RSS/toppaidapplications/limit=75/xml");
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UINavigationController NavigationController { get; set; }
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RootViewController RootController { get; set; }
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public UIWindow Window { get; set; }
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/// <summary>
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/// This method is invoked when the application has loaded and is ready to run. In this
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/// method you should instantiate the window, load the UI into it and then make the window
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/// visible.
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/// </summary>
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/// <remarks>
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/// You have 5 seconds to return from this method, or iOS will terminate your application.
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/// </remarks>
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public override bool FinishedLaunching (UIApplication app, NSDictionary options)
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{
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Window = new UIWindow (UIScreen.MainScreen.Bounds);
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RootController = new RootViewController ("RootViewController", null);
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NavigationController = new UINavigationController (RootController);
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Window.RootViewController = NavigationController;
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// make the window visible
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Window.MakeKeyAndVisible ();
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BeginDownloading ();
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return true;
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}
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void BeginDownloading ()
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{
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// Show the user that data is about to be downloaded
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UIApplication.SharedApplication.NetworkActivityIndicatorVisible = true;
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// Retrieve the rss feed from the server
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var downloader = new GzipWebClient ();
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downloader.DownloadStringCompleted += DownloadCompleted;
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downloader.DownloadStringAsync (RssFeedUrl);
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}
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void DownloadCompleted (object sender, DownloadStringCompletedEventArgs e)
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{
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// The WebClient will invoke the DownloadStringCompleted event on a
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// background thread. We want to do UI updates with the result, so process
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// the result on the main thread.
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UIApplication.SharedApplication.BeginInvokeOnMainThread (() => {
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// First disable the download indicator
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UIApplication.SharedApplication.NetworkActivityIndicatorVisible = false;
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// Now handle the result from the WebClient
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if (e.Error != null) {
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DisplayError ("Warning", "The rss feed could not be downloaded: " + e.Error.Message);
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} else {
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try {
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RootController.Apps.Clear ();
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foreach (var v in RssParser.Parse (e.Result))
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RootController.Apps.Add (v);
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} catch {
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DisplayError ("Warning", "Malformed Xml was found in the Rss Feed.");
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}
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}
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});
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}
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void DisplayError (string title, string errorMessage, params object[] formatting)
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{
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var alert = new UIAlertView (title, string.Format (errorMessage, formatting), null, "ok", null);
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alert.Show ();
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}
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}
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}
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using System;
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using System.Net;
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namespace LazyTableImages
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{
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public class GzipWebClient : WebClient
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{
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protected override WebRequest GetWebRequest (Uri address)
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{
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var request = base.GetWebRequest (address);
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if (request is HttpWebRequest)
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((HttpWebRequest) request).AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
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return request;
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}
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}
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}
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После Ширина: | Высота: | Размер: 711 B |
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>CFBundleIconFiles</key>
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<array>
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<string>Resources/icon-57.png</string>
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<string>Resources/icon-114.png</string>
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<string>Resources/icon-72.png</string>
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<string>Resources/icon-144.png</string>
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<string>Resources/icon-29.png</string>
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<string>Resources/icon-58.png</string>
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<string>Resources/icon-50.png</string>
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<string>Resources/icon-100.png</string>
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</array>
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<key>UISupportedInterfaceOrientations</key>
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<array>
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<string>UIInterfaceOrientationPortrait</string>
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<string>UIInterfaceOrientationLandscapeLeft</string>
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<string>UIInterfaceOrientationLandscapeRight</string>
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</array>
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</dict>
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</plist>
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<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">iPhoneSimulator</Platform>
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<ProductVersion>10.0.0</ProductVersion>
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<SchemaVersion>2.0</SchemaVersion>
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<ProjectGuid>{4D3A8E8A-53D4-4CF5-97D6-9E6199DDB582}</ProjectGuid>
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<ProjectTypeGuids>{6BC8ED88-2882-458C-8E55-DFD12B67127B};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
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<OutputType>Exe</OutputType>
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<RootNamespace>LazyTableImages</RootNamespace>
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<AssemblyName>LazyTableImages</AssemblyName>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhoneSimulator' ">
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<DebugSymbols>True</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>False</Optimize>
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<OutputPath>bin\iPhoneSimulator\Debug</OutputPath>
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<DefineConstants>DEBUG</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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<ConsolePause>False</ConsolePause>
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<MtouchLink>None</MtouchLink>
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<MtouchDebug>True</MtouchDebug>
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<MtouchI18n />
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhoneSimulator' ">
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<DebugType>none</DebugType>
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<Optimize>False</Optimize>
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<OutputPath>bin\iPhoneSimulator\Release</OutputPath>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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<ConsolePause>False</ConsolePause>
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<MtouchLink>None</MtouchLink>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhone' ">
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<DebugSymbols>True</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>False</Optimize>
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<OutputPath>bin\iPhone\Debug</OutputPath>
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<DefineConstants>DEBUG</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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<ConsolePause>False</ConsolePause>
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<MtouchDebug>True</MtouchDebug>
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<CodesignKey>iPhone Developer</CodesignKey>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhone' ">
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<DebugType>none</DebugType>
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<Optimize>False</Optimize>
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<OutputPath>bin\iPhone\Release</OutputPath>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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<ConsolePause>False</ConsolePause>
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<CodesignKey>iPhone Developer</CodesignKey>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="System" />
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<Reference Include="System.Xml" />
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<Reference Include="System.Core" />
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<Reference Include="monotouch" />
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<Reference Include="System.Xml.Linq" />
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</ItemGroup>
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<ItemGroup>
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<None Include="Info.plist" />
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</ItemGroup>
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<ItemGroup>
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<Compile Include="Main.cs" />
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<Compile Include="AppDelegate.cs" />
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<Compile Include="RootViewController.cs" />
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<Compile Include="RootViewController.designer.cs">
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<DependentUpon>RootViewController.cs</DependentUpon>
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</Compile>
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<Compile Include="App.cs" />
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<Compile Include="RssParser.cs" />
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<Compile Include="GzipWebClient.cs" />
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</ItemGroup>
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<ItemGroup>
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<InterfaceDefinition Include="RootViewController.xib" />
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</ItemGroup>
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<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
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<ItemGroup>
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<Folder Include="Images\" />
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<Folder Include="Resources\" />
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</ItemGroup>
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<ItemGroup>
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<Content Include="Images\Placeholder.png" />
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</ItemGroup>
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<ItemGroup>
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<BundleResource Include="Resources\icon-72.png" />
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<BundleResource Include="Resources\icon-29.png" />
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<BundleResource Include="Resources\icon-50.png" />
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<BundleResource Include="Resources\icon-58.png" />
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<BundleResource Include="Resources\icon-100.png" />
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<BundleResource Include="Resources\iTunesArtwork%402x.png" />
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<BundleResource Include="Resources\Default-568h%402x.png" />
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<BundleResource Include="Resources\Default-Landscape%402x~ipad.png" />
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<BundleResource Include="Resources\Default-Landscape~ipad.png" />
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<BundleResource Include="Resources\Default-Portrait%402x~ipad.png" />
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<BundleResource Include="Resources\Default-Portrait~ipad.png" />
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<BundleResource Include="Resources\Default.png" />
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<BundleResource Include="Resources\Default%402x.png" />
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<BundleResource Include="Resources\icon-57.png" />
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<BundleResource Include="Resources\icon-114.png" />
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<BundleResource Include="Resources\icon-144.png" />
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</ItemGroup>
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<ItemGroup>
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<ITunesArtwork Include="Resources\iTunesArtwork.png" />
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</ItemGroup>
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</Project>
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Microsoft Visual Studio Solution File, Format Version 11.00
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# Visual Studio 2010
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "LazyTableImages", "LazyTableImages.csproj", "{4D3A8E8A-53D4-4CF5-97D6-9E6199DDB582}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|iPhoneSimulator = Debug|iPhoneSimulator
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Release|iPhoneSimulator = Release|iPhoneSimulator
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Debug|iPhone = Debug|iPhone
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Release|iPhone = Release|iPhone
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{4D3A8E8A-53D4-4CF5-97D6-9E6199DDB582}.Debug|iPhone.ActiveCfg = Debug|iPhone
|
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{4D3A8E8A-53D4-4CF5-97D6-9E6199DDB582}.Debug|iPhone.Build.0 = Debug|iPhone
|
||||
{4D3A8E8A-53D4-4CF5-97D6-9E6199DDB582}.Debug|iPhoneSimulator.ActiveCfg = Debug|iPhoneSimulator
|
||||
{4D3A8E8A-53D4-4CF5-97D6-9E6199DDB582}.Debug|iPhoneSimulator.Build.0 = Debug|iPhoneSimulator
|
||||
{4D3A8E8A-53D4-4CF5-97D6-9E6199DDB582}.Release|iPhone.ActiveCfg = Release|iPhone
|
||||
{4D3A8E8A-53D4-4CF5-97D6-9E6199DDB582}.Release|iPhone.Build.0 = Release|iPhone
|
||||
{4D3A8E8A-53D4-4CF5-97D6-9E6199DDB582}.Release|iPhoneSimulator.ActiveCfg = Release|iPhoneSimulator
|
||||
{4D3A8E8A-53D4-4CF5-97D6-9E6199DDB582}.Release|iPhoneSimulator.Build.0 = Release|iPhoneSimulator
|
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EndGlobalSection
|
||||
GlobalSection(MonoDevelopProperties) = preSolution
|
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StartupItem = LazyTableImages.csproj
|
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EndGlobalSection
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EndGlobal
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using System;
|
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using System.Collections.Generic;
|
||||
using System.Linq;
|
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using MonoTouch.Foundation;
|
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using MonoTouch.UIKit;
|
||||
|
||||
namespace LazyTableImages {
|
||||
|
||||
public class Application {
|
||||
/// <summary>
|
||||
/// This is the main entry point of the application.
|
||||
/// </summary>
|
||||
static void Main (string[] args)
|
||||
{
|
||||
// if you want to use a different Application Delegate class from "AppDelegate"
|
||||
// you can specify it here.
|
||||
UIApplication.Main (args, null, "AppDelegate");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
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|
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<?xml version="1.0" encoding="utf-8" ?>
|
||||
<SampleMetadata>
|
||||
<ID>4912a5a3-7b98-4886-9d50-1b0c417f6037</ID>
|
||||
<IsFullApplication>false</IsFullApplication>
|
||||
<Level>Beginning</Level>
|
||||
<Tags>User Interface, Web, Graphics</Tags>
|
||||
</SampleMetadata>
|
||||
|
|
@ -0,0 +1,4 @@
|
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Lazy Table Images
|
||||
=================
|
||||
|
||||
This sample demonstrates how to lazily download images and add them to a prepopulated table.
|
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После Ширина: | Высота: | Размер: 12 KiB |
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После Ширина: | Высота: | Размер: 24 KiB |
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После Ширина: | Высота: | Размер: 9.4 KiB |
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После Ширина: | Высота: | Размер: 25 KiB |
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После Ширина: | Высота: | Размер: 9.8 KiB |
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После Ширина: | Высота: | Размер: 5.2 KiB |
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После Ширина: | Высота: | Размер: 12 KiB |
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После Ширина: | Высота: | Размер: 106 KiB |
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После Ширина: | Высота: | Размер: 273 KiB |
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После Ширина: | Высота: | Размер: 11 KiB |
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После Ширина: | Высота: | Размер: 14 KiB |
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После Ширина: | Высота: | Размер: 18 KiB |
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После Ширина: | Высота: | Размер: 2.0 KiB |
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После Ширина: | Высота: | Размер: 4.2 KiB |
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После Ширина: | Высота: | Размер: 5.1 KiB |
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После Ширина: | Высота: | Размер: 5.2 KiB |
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После Ширина: | Высота: | Размер: 6.6 KiB |
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@ -0,0 +1,180 @@
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//
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// RootViewController.cs
|
||||
//
|
||||
// Author:
|
||||
// Alan McGovern <alan@xamarin.com>
|
||||
//
|
||||
// Copyright 2011, Xamarin Inc.
|
||||
//
|
||||
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
// of this software and associated documentation files (the "Software"), to deal
|
||||
// in the Software without restriction, including without limitation the rights
|
||||
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
// copies of the Software, and to permit persons to whom the Software is
|
||||
// furnished to do so, subject to the following conditions:
|
||||
//
|
||||
// The above copyright notice and this permission notice shall be included in
|
||||
// all copies or substantial portions of the Software.
|
||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
// THE SOFTWARE.
|
||||
|
||||
using System;
|
||||
using System.Drawing;
|
||||
using System.Linq;
|
||||
using MonoTouch.UIKit;
|
||||
using MonoTouch.Foundation;
|
||||
using System.Collections.ObjectModel;
|
||||
using System.Threading.Tasks;
|
||||
using System.Net;
|
||||
using System.Threading;
|
||||
|
||||
namespace LazyTableImages {
|
||||
|
||||
public partial class RootViewController : UITableViewController {
|
||||
|
||||
public ObservableCollection<App> Apps { get; private set; }
|
||||
|
||||
public RootViewController (string nibName, NSBundle bundle) : base (nibName, bundle)
|
||||
{
|
||||
Apps = new ObservableCollection<App> ();
|
||||
Title = NSBundle.MainBundle.LocalizedString ("Top 75 Apps", "Master");
|
||||
}
|
||||
|
||||
public override void ViewDidLoad ()
|
||||
{
|
||||
base.ViewDidLoad ();
|
||||
|
||||
TableView.Source = new DataSource (this);
|
||||
}
|
||||
|
||||
public override bool ShouldAutorotateToInterfaceOrientation (UIInterfaceOrientation toInterfaceOrientation)
|
||||
{
|
||||
return (toInterfaceOrientation != UIInterfaceOrientation.PortraitUpsideDown);
|
||||
}
|
||||
|
||||
public override void DidReceiveMemoryWarning ()
|
||||
{
|
||||
// Release all cached images. This will cause them to be redownloaded
|
||||
// later as they're displayed.
|
||||
foreach (var v in Apps)
|
||||
v.Image = null;
|
||||
}
|
||||
|
||||
class DataSource : UITableViewSource {
|
||||
|
||||
RootViewController Controller { get; set; }
|
||||
Task DownloadTask { get; set; }
|
||||
UIImage PlaceholderImage { get; set; }
|
||||
|
||||
public DataSource (RootViewController controller)
|
||||
{
|
||||
Controller = controller;
|
||||
|
||||
// Listen for changes to the Apps collection so the TableView can be updated
|
||||
Controller.Apps.CollectionChanged += HandleAppsCollectionChanged;
|
||||
// Initialise DownloadTask with an empty and complete task
|
||||
DownloadTask = Task.Factory.StartNew (() => { });
|
||||
// Load the Placeholder image so it's ready to be used immediately
|
||||
PlaceholderImage = UIImage.FromFile ("Images/Placeholder.png");
|
||||
|
||||
// If either a download fails or the image we download is corrupt, ignore the problem.
|
||||
TaskScheduler.UnobservedTaskException += delegate(object sender, UnobservedTaskExceptionEventArgs e) {
|
||||
e.SetObserved ();
|
||||
};
|
||||
}
|
||||
|
||||
void HandleAppsCollectionChanged (object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
|
||||
{
|
||||
// Whenever the Items change, reload the data.
|
||||
Controller.TableView.ReloadData ();
|
||||
}
|
||||
|
||||
public override int NumberOfSections (UITableView tableView)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
public override int RowsInSection (UITableView tableview, int section)
|
||||
{
|
||||
return Controller.Apps.Count;
|
||||
}
|
||||
|
||||
// Customize the appearance of table view cells.
|
||||
public override UITableViewCell GetCell (UITableView tableView, MonoTouch.Foundation.NSIndexPath indexPath)
|
||||
{
|
||||
UITableViewCell cell;
|
||||
// If the list is empty, put in a 'loading' entry
|
||||
if (Controller.Apps.Count == 0 && indexPath.Row == 0) {
|
||||
cell = tableView.DequeueReusableCell ("Placeholder");
|
||||
if (cell == null) {
|
||||
cell = new UITableViewCell (UITableViewCellStyle.Subtitle, "Placeholder");
|
||||
cell.DetailTextLabel.TextAlignment = UITextAlignment.Center;
|
||||
cell.SelectionStyle = UITableViewCellSelectionStyle.None;
|
||||
cell.DetailTextLabel.Text = "Loading";
|
||||
}
|
||||
return cell;
|
||||
}
|
||||
|
||||
cell = tableView.DequeueReusableCell ("Cell");
|
||||
if (cell == null) {
|
||||
cell = new UITableViewCell (UITableViewCellStyle.Subtitle, "Cell");
|
||||
cell.SelectionStyle = UITableViewCellSelectionStyle.None;
|
||||
}
|
||||
|
||||
// Set the tag of each cell to the index of the App that
|
||||
// it's displaying. This allows us to directly match a cell
|
||||
// with an item when we're updating the Image
|
||||
var app = Controller.Apps [indexPath.Row];
|
||||
cell.Tag = indexPath.Row;
|
||||
cell.TextLabel.Text = app.Name;
|
||||
cell.DetailTextLabel.Text = app.Artist;
|
||||
|
||||
// If the Image for this App has not been downloaded,
|
||||
// use the Placeholder image while we try to download
|
||||
// the real image from the web.
|
||||
if (app.Image == null) {
|
||||
app.Image = PlaceholderImage;
|
||||
BeginDownloadingImage (app, indexPath);
|
||||
}
|
||||
cell.ImageView.Image = app.Image;
|
||||
return cell;
|
||||
}
|
||||
|
||||
async void BeginDownloadingImage (App app, NSIndexPath path)
|
||||
{
|
||||
// Queue the image to be downloaded. This task will execute
|
||||
// as soon as the existing ones have finished.
|
||||
byte[] data = null;
|
||||
|
||||
data = await GetImageData (app);
|
||||
app.Image = UIImage.LoadFromData (NSData.FromArray (data));
|
||||
|
||||
InvokeOnMainThread (() => {
|
||||
var cell = Controller.TableView.VisibleCells.Where (c => c.Tag == Controller.Apps.IndexOf (app)).FirstOrDefault ();
|
||||
if (cell != null)
|
||||
cell.ImageView.Image = app.Image;
|
||||
});
|
||||
}
|
||||
|
||||
async Task<byte[]> GetImageData(App app)
|
||||
{
|
||||
byte[] data = null;
|
||||
try {
|
||||
UIApplication.SharedApplication.NetworkActivityIndicatorVisible = true;
|
||||
using (var c = new GzipWebClient ())
|
||||
data = await c.DownloadDataTaskAsync (app.ImageUrl);
|
||||
} finally {
|
||||
UIApplication.SharedApplication.NetworkActivityIndicatorVisible = false;
|
||||
}
|
||||
|
||||
return data;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
// WARNING
|
||||
//
|
||||
// This file has been generated automatically by MonoDevelop to store outlets and
|
||||
// actions made in the Xcode designer. If it is removed, they will be lost.
|
||||
// Manual changes to this file may not be handled correctly.
|
||||
//
|
||||
using MonoTouch.Foundation;
|
||||
|
||||
namespace LazyTableImages {
|
||||
|
||||
[Register ("RootViewController")]
|
||||
partial class RootViewController {
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,384 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<archive type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="7.10">
|
||||
<data>
|
||||
<int key="IBDocument.SystemTarget">784</int>
|
||||
<string key="IBDocument.SystemVersion">10D541</string>
|
||||
<string key="IBDocument.InterfaceBuilderVersion">760</string>
|
||||
<string key="IBDocument.AppKitVersion">1038.29</string>
|
||||
<string key="IBDocument.HIToolboxVersion">460.00</string>
|
||||
<object class="NSMutableDictionary" key="IBDocument.PluginVersions">
|
||||
<string key="NS.key.0">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
|
||||
<string key="NS.object.0">81</string>
|
||||
</object>
|
||||
<object class="NSMutableArray" key="IBDocument.EditedObjectIDs">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
<integer value="2"/>
|
||||
</object>
|
||||
<object class="NSArray" key="IBDocument.PluginDependencies">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
<string>com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
|
||||
</object>
|
||||
<object class="NSMutableDictionary" key="IBDocument.Metadata">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
<object class="NSArray" key="dict.sortedKeys" id="0">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
</object>
|
||||
<object class="NSMutableArray" key="dict.values">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
</object>
|
||||
</object>
|
||||
<object class="NSMutableArray" key="IBDocument.RootObjects" id="1000">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
<object class="IBProxyObject" id="841351856">
|
||||
<string key="IBProxiedObjectIdentifier">IBFilesOwner</string>
|
||||
<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
|
||||
</object>
|
||||
<object class="IBProxyObject" id="371349661">
|
||||
<string key="IBProxiedObjectIdentifier">IBFirstResponder</string>
|
||||
<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
|
||||
</object>
|
||||
<object class="IBUITableView" id="709618507">
|
||||
<reference key="NSNextResponder"/>
|
||||
<int key="NSvFlags">274</int>
|
||||
<string key="NSFrameSize">{320, 247}</string>
|
||||
<reference key="NSSuperview"/>
|
||||
<object class="NSColor" key="IBUIBackgroundColor">
|
||||
<int key="NSColorSpace">3</int>
|
||||
<bytes key="NSWhite">MQA</bytes>
|
||||
</object>
|
||||
<bool key="IBUIOpaque">NO</bool>
|
||||
<bool key="IBUIClipsSubviews">YES</bool>
|
||||
<bool key="IBUIClearsContextBeforeDrawing">NO</bool>
|
||||
<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
|
||||
<bool key="IBUIBouncesZoom">NO</bool>
|
||||
<int key="IBUISeparatorStyle">1</int>
|
||||
<int key="IBUISectionIndexMinimumDisplayRowCount">0</int>
|
||||
<bool key="IBUIShowsSelectionImmediatelyOnTouchBegin">YES</bool>
|
||||
<float key="IBUIRowHeight">44</float>
|
||||
<float key="IBUISectionHeaderHeight">22</float>
|
||||
<float key="IBUISectionFooterHeight">22</float>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBObjectContainer" key="IBDocument.Objects">
|
||||
<object class="NSMutableArray" key="connectionRecords">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
<object class="IBConnectionRecord">
|
||||
<object class="IBCocoaTouchOutletConnection" key="connection">
|
||||
<string key="label">view</string>
|
||||
<reference key="source" ref="841351856"/>
|
||||
<reference key="destination" ref="709618507"/>
|
||||
</object>
|
||||
<int key="connectionID">3</int>
|
||||
</object>
|
||||
<object class="IBConnectionRecord">
|
||||
<object class="IBCocoaTouchOutletConnection" key="connection">
|
||||
<string key="label">dataSource</string>
|
||||
<reference key="source" ref="709618507"/>
|
||||
<reference key="destination" ref="841351856"/>
|
||||
</object>
|
||||
<int key="connectionID">4</int>
|
||||
</object>
|
||||
<object class="IBConnectionRecord">
|
||||
<object class="IBCocoaTouchOutletConnection" key="connection">
|
||||
<string key="label">delegate</string>
|
||||
<reference key="source" ref="709618507"/>
|
||||
<reference key="destination" ref="841351856"/>
|
||||
</object>
|
||||
<int key="connectionID">5</int>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBMutableOrderedSet" key="objectRecords">
|
||||
<object class="NSArray" key="orderedObjects">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
<object class="IBObjectRecord">
|
||||
<int key="objectID">0</int>
|
||||
<reference key="object" ref="0"/>
|
||||
<reference key="children" ref="1000"/>
|
||||
<nil key="parent"/>
|
||||
</object>
|
||||
<object class="IBObjectRecord">
|
||||
<int key="objectID">-1</int>
|
||||
<reference key="object" ref="841351856"/>
|
||||
<reference key="parent" ref="0"/>
|
||||
<string key="objectName">File's Owner</string>
|
||||
</object>
|
||||
<object class="IBObjectRecord">
|
||||
<int key="objectID">-2</int>
|
||||
<reference key="object" ref="371349661"/>
|
||||
<reference key="parent" ref="0"/>
|
||||
</object>
|
||||
<object class="IBObjectRecord">
|
||||
<int key="objectID">2</int>
|
||||
<reference key="object" ref="709618507"/>
|
||||
<reference key="parent" ref="0"/>
|
||||
</object>
|
||||
</object>
|
||||
</object>
|
||||
<object class="NSMutableDictionary" key="flattenedProperties">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
<object class="NSArray" key="dict.sortedKeys">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
<string>-1.CustomClassName</string>
|
||||
<string>-2.CustomClassName</string>
|
||||
<string>2.IBEditorWindowLastContentRect</string>
|
||||
<string>2.IBPluginDependency</string>
|
||||
</object>
|
||||
<object class="NSMutableArray" key="dict.values">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
<string>RootViewController</string>
|
||||
<string>UIResponder</string>
|
||||
<string>{{144, 609}, {320, 247}}</string>
|
||||
<string>com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="NSMutableDictionary" key="unlocalizedProperties">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
<reference key="dict.sortedKeys" ref="0"/>
|
||||
<object class="NSMutableArray" key="dict.values">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
</object>
|
||||
</object>
|
||||
<nil key="activeLocalization"/>
|
||||
<object class="NSMutableDictionary" key="localizations">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
<reference key="dict.sortedKeys" ref="0"/>
|
||||
<object class="NSMutableArray" key="dict.values">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
</object>
|
||||
</object>
|
||||
<nil key="sourceID"/>
|
||||
<int key="maxID">5</int>
|
||||
</object>
|
||||
<object class="IBClassDescriber" key="IBDocument.Classes">
|
||||
<object class="NSMutableArray" key="referencedPartialClassDescriptions">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">RootViewController</string>
|
||||
<string key="superclassName">UITableViewController</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBProjectSource</string>
|
||||
<string key="minorKey">RootViewController.h</string>
|
||||
</object>
|
||||
</object>
|
||||
</object>
|
||||
<object class="NSMutableArray" key="referencedPartialClassDescriptionsV3.2+">
|
||||
<bool key="EncodedWithXMLCoder">YES</bool>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBFrameworkSource</string>
|
||||
<string key="minorKey">Foundation.framework/Headers/NSError.h</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBFrameworkSource</string>
|
||||
<string key="minorKey">Foundation.framework/Headers/NSFileManager.h</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBFrameworkSource</string>
|
||||
<string key="minorKey">Foundation.framework/Headers/NSKeyValueCoding.h</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBFrameworkSource</string>
|
||||
<string key="minorKey">Foundation.framework/Headers/NSKeyValueObserving.h</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBFrameworkSource</string>
|
||||
<string key="minorKey">Foundation.framework/Headers/NSKeyedArchiver.h</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBFrameworkSource</string>
|
||||
<string key="minorKey">Foundation.framework/Headers/NSNetServices.h</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBFrameworkSource</string>
|
||||
<string key="minorKey">Foundation.framework/Headers/NSObject.h</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBFrameworkSource</string>
|
||||
<string key="minorKey">Foundation.framework/Headers/NSPort.h</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBFrameworkSource</string>
|
||||
<string key="minorKey">Foundation.framework/Headers/NSRunLoop.h</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBFrameworkSource</string>
|
||||
<string key="minorKey">Foundation.framework/Headers/NSStream.h</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBFrameworkSource</string>
|
||||
<string key="minorKey">Foundation.framework/Headers/NSThread.h</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBFrameworkSource</string>
|
||||
<string key="minorKey">Foundation.framework/Headers/NSURL.h</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
|
||||
<object class="IBClassDescriptionSource" key="sourceIdentifier">
|
||||
<string key="majorKey">IBFrameworkSource</string>
|
||||
<string key="minorKey">Foundation.framework/Headers/NSURLConnection.h</string>
|
||||
</object>
|
||||
</object>
|
||||
<object class="IBPartialClassDescription">
|
||||
<string key="className">NSObject</string>
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|
@ -0,0 +1,80 @@
|
|||
//
|
||||
// RssParser.cs
|
||||
//
|
||||
// Author:
|
||||
// Alan McGovern <alan@xamarin.com>
|
||||
//
|
||||
// Copyright 2011, Xamarin Inc.
|
||||
//
|
||||
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
// of this software and associated documentation files (the "Software"), to deal
|
||||
// in the Software without restriction, including without limitation the rights
|
||||
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
// copies of the Software, and to permit persons to whom the Software is
|
||||
// furnished to do so, subject to the following conditions:
|
||||
//
|
||||
// The above copyright notice and this permission notice shall be included in
|
||||
// all copies or substantial portions of the Software.
|
||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
// THE SOFTWARE.
|
||||
|
||||
using System;
|
||||
using System.Linq;
|
||||
using System.Xml.Linq;
|
||||
using System.Collections.Generic;
|
||||
|
||||
namespace LazyTableImages {
|
||||
|
||||
public static class RssParser {
|
||||
|
||||
// These are used to select the correct nodes and attributes from the Rss feed
|
||||
static readonly XName FeedElement = XName.Get ("feed", "http://www.w3.org/2005/Atom");
|
||||
static readonly XName EntryElement = XName.Get ("entry", "http://www.w3.org/2005/Atom");
|
||||
static readonly XName AppUrlElement = XName.Get ("id", "http://www.w3.org/2005/Atom");
|
||||
|
||||
static readonly XName AppNameElement = XName.Get ("name", "http://itunes.apple.com/rss");
|
||||
static readonly XName ArtistElement = XName.Get ("artist", "http://itunes.apple.com/rss");
|
||||
static readonly XName ImageUrlElement = XName.Get ("image", "http://itunes.apple.com/rss");
|
||||
|
||||
static readonly XName HeightAttribute = XName.Get ("height", "");
|
||||
|
||||
public static List<App> Parse (string xml)
|
||||
{
|
||||
// Open the xml
|
||||
var doc = XDocument.Parse (xml);
|
||||
|
||||
// We want to convert all the raw Xml nodes called 'entry' which
|
||||
// are in that namespace into instances of the 'App' class so they
|
||||
// can be displayed easily in the table.
|
||||
return doc.Element (FeedElement) // Select the 'feed' node.
|
||||
.Elements (EntryElement) // Select all children with the name 'entry'.
|
||||
.Select (XmlElementToApp) // Convert the 'entry' nodes to instances of the App class.
|
||||
.ToList (); // Return as a List<App>.
|
||||
}
|
||||
|
||||
static App XmlElementToApp (XElement entry)
|
||||
{
|
||||
// The document may contain many image nodes. Select the one with
|
||||
// the largest resolution.
|
||||
var imageUrlNode = entry.Elements (ImageUrlElement)
|
||||
.Where (n => n.Attribute (HeightAttribute) != null)
|
||||
.OrderBy (node => int.Parse (node.Attribute (HeightAttribute).Value))
|
||||
.LastOrDefault ();
|
||||
|
||||
// Parse the rest of the apps information from the XElement and
|
||||
// return the App instance.
|
||||
return new App {
|
||||
Name = entry.Element (AppNameElement).Value,
|
||||
Url = new Uri (entry.Element (AppUrlElement).Value),
|
||||
Artist = entry.Element (ArtistElement).Value,
|
||||
ImageUrl = new Uri (imageUrlNode.Value)
|
||||
};
|
||||
}
|
||||
}
|
||||
}
|
||||
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