10 tips for porting to Windows Phone 8

Matt Lacey @mrlacey http://mrlacey.com/

me
Freelance developer
Doing “mobile” development over 10 years
Organise the Windows Phone User Group
Wants to help you build awesome apps
YOU
Developer
Experienced on other mobile platforms
Some Windows Phone awareness
Want to build awesome apps

1. Metro
2. Visuals
3. Controls
4. .net
5. MVVM
6. Lifecycle
7. Navigation
8. Memory
9. Localization
10. Beyond 8.0

1. Pride in craftsmanship
2. Be fast and fluid
3. Authentically digital
4. Do more with less
5. Win as one

The OS implementation of the principles

Can follow the principles
without implementing the
language

Apps can be more than just
white text on a black
background

Are drop shadows, gradients,
rounded corners and gloss
really a part of your brand?

http://www.flickr.com/photos/winterofdiscontent/3231416496/
.net

var client = new WebClient();
client.DownloadStringCompleted +=
(sender, args) =>
MessageBox.Show(args.Result.Length.ToString(),
"Response length",
MessageBoxButton.OK);
client.DownloadStringAsync(
new Uri("http://www.mobdevcon.com/"));

private async Task ShowPageLength()
{
var client = new HttpClient();
var response = await client.GetStringAsync(
"http://www.mobdevcon.com/");
MessageBox.Show(response.Length.ToString(),
"Response length",
MessageBoxButton.OK);
}

[CompilerGenerated]
private struct <MakeAwaitableRequest>d__0 : IAsyncStateMachine
{
public int <>1__state;
public MainPage <>4__this;
public AsyncVoidMethodBuilder <>t__builder;
private object <>t__stack;
private TaskAwaiter<string> <>u__$awaiter3;
public HttpClient <client>5__1;
public string <response>5__2;
private void MoveNext()
{
try
{
TaskAwaiter<string> awaiter;
bool flag = true;
switch (this.<>1__state)
{
case -3:
goto Label_00DD;
case 0:
break;
default:
this.<client>5__1 = new HttpClient();
awaiter = this.<client>5__1.GetStringAsync("http://www.mobdevcon.com/").GetAwaiter();
if (awaiter.IsCompleted)
{
goto Label_008A;
}
this.<>1__state = 0;
this.<>u__$awaiter3 = awaiter;
this.<>t__builder.AwaitUnsafeOnCompleted<TaskAwaiter<string>, MainPage.<MakeAwaitableRequest>d__0>(ref awaiter, ref this);
flag = false;
return;
}
awaiter = this.<>u__$awaiter3;
this.<>u__$awaiter3 = new TaskAwaiter<string>();
this.<>1__state = -1;
Label_008A:
string introduced7 = awaiter.GetResult();
awaiter = new TaskAwaiter<string>();
string str = introduced7;
this.<response>5__2 = str;
MessageBox.Show(this.<response>5__2.Length.ToString(), "Response length", MessageBoxButton.OK);
}
catch (Exception exception)
{
this.<>t__builder.SetException(exception);
return;
}
Label_00DD:
this.<>t__builder.SetResult();
}

public IList<BlogPost> FindPopularPosts(IList<BlogPost> allPosts)
{
var popularPosts = new List<BlogPost>();
foreach (var post in allPosts)
{
if (post.Views >= 10000)
{
popularPosts.Add(post);
}
}
return popularPosts;
}

public IList<BlogPost> FindPopularPosts(IList<BlogPost> allPosts)
{
return allPosts.Where(p => p.Views >= 10000).ToList();
}

MVVMLight Caliburn.Micro MVVMCros
s

toast, tile & raw
no interception
no notification center

Good news
Better than WP7
Great tools
Bad news
Low spec devices
Large/complex apps
Images
Background agents

frame rate counters
redraw visualizations
cache visualizations
memory counters
application analysis
execution profiling
memory profiling

http://dev.windowsphone.com/
http://www.developer.nokia.com/
http://mrlacey.com/

10 tips for porting to Windows Phone 8

10 tips for porting to Windows Phone 8

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