Now with 3 App Marketplaces to sell your apps in, it's becoming more important to design and build your apps so that you can publish in all 3 markets without having to rebuild the entire app for each platform. In this session we will cover the pros and cons of HTML5/JS/CSS3 and C#/CLR.

4. • Toolsets / Frameworks
• Hybrid Applications
HTML5 • Integrated
Portability
• MS .Net
C#/CLR • Xamarin Mono
• Barebones
access to
C++ low level
API’s
Flexibility

5. HTML5/JS/CSS3 C# / CLR
 Web Standard being  Desktop paradigm being
leveraged for mobile leveraged for mobile
 Performance hit from  Native execution model
JavaScript execution for each platform
 Development tools are  1 Stack - Cloud to Device
lacking, esp. Debugging

11. Data Binding

12. Data Binding

13. xamarin.com/mobileapi

14. Xamarin.Mobile
Compass +
Contacts Geolocation Camera Notifications
Accelerometer

15. ContentResolver content= getContentResolver();
Cursor ncursor = null;
try {
ncursor = content.query (ContactsContract.Data.CONTENT_URI,
new String[] { ContactsContract.Data.MIMETYPE, ContactsContract.Contacts.LOOKUP_KEY, ContactsContract.Contacts.DISPLAY_NAME },
ContactsContract.Data.MIMETYPE + "=? AND " + ContactsContract.CommonDataKinds.StructuredName.FAMILY_NAME + "=?",
new String[] { ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE, "Smith" }, null);
while (ncursor.moveToNext()) {
print (ncursor.getString(ncursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME)) + lineSep);
String lookupKey = ncursor.getString (ncursor.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY));
Cursor dcursor = null;
try {
dcursor = content.query (ContactsContract.Data.CONTENT_URI,
new String[] { ContactsContract.Data.MIMETYPE, ContactsContract.CommonDataKinds.Phone.NUMBER,
ContactsContract.Data.DATA1 },
ContactsContract.Contacts.LOOKUP_KEY + "=?", new String[] { lookupKey }, null);
while (dcursor.moveToNext()) {
String type = dcursor.getString (ncursor.getColumnIndex(ContactsContract.Data.MIMETYPE));
if (type.equals (ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE))
print ("Phone: " + dcursor.getString(dcursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)) +
lineSep);
else if (type.equals (ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE))
print ("Email: " + dcursor.getString(dcursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA1)) +
lineSep);
}
} finally {
if (dcursor != null)
dcursor.close();
}
}
} finally {
if (ncursor != null)
ncursor.close();
}

16. ABAddressBookRef ab = ABAddressBookCreate();
CFStringRef name = CFSTR ("Smith");
CFArrayRef smiths = ABAddressBookCopyPeopleWithName(ab, name);
CFRelease (name);
ABAddressBookRef ab = ABAddressBookCreate();
int count = CFArrayGetCount(smiths);
CFStringRef name = CFSTR ("Smith");
for (int i = 0; i < count; ++i) { CFArrayRef smiths = ABAddressBookCopyPeopleWithName(ab, name);
ABRecordRef person = (ABRecordRef)CFArrayGetValueAtIndex(smiths, (CFIndex)i);
CFRelease (name);
if (ABRecordGetRecordType(person) != kABPersonType)
continue; int count = CFArrayGetCount(smiths);
for (int i = 0; i < count; ++i) {
NSString *name = (NSString*)ABRecordCopyCompositeName(person);
ABRecordRef person = (ABRecordRef)CFArrayGetValueAtIndex(smiths, (CFIndex)i);
NSLog ("%@n", name); if (ABRecordGetRecordType(person) != kABPersonType)
[name release]; continue;
ABMultiValueRef phoneNumberProp = ABRecordCopyValue(person, kABPersonPhoneProperty);
NSString *name = (NSString*)ABRecordCopyCompositeName(person);
NSLog ("%@n", name);
NSArray* numbers = (NSArray*)ABMultiValueCopyArrayOfAllValues(phoneNumberProp);
CFRelease(phoneNumberProp); [name release];
for (NSString *pvalue in numbers) ABMultiValueRef phoneNumberProp = ABRecordCopyValue(person, kABPersonPhoneProperty);
NSArray* numbers = (NSArray*)ABMultiValueCopyArrayOfAllValues(phoneNumberProp);
NSLog ("Phone: %@n", pvalue);
CFRelease(phoneNumberProp);
[numbers release]; for (NSString *pvalue in numbers)
NSLog ("Phone: %@n", pvalue);
ABMultiValueRef emailProp = ABRecordCopyValue(person, kABPersonEmailProperty);
NSArray* emails = (NSArray*)ABMultiValueCopyArrayOfAllValues(emailProp);
[numbers release];
CFRelease(emailProp);
ABMultiValueRef emailProp = ABRecordCopyValue(person, kABPersonEmailProperty);
for (NSString *evalue in emails) NSArray* emails = (NSArray*)ABMultiValueCopyArrayOfAllValues(emailProp);
NSLog ("Email: %@n"); CFRelease(emailProp);
[emails release];
} for (NSString *evalue in emails)
CFRelease (ab); NSLog ("Email: %@n");
CFRelease (smiths); [emails release];
}
CFRelease (ab);
CFRelease (smiths);

17. var book = new AddressBook () {
PreferContactAggregation = true
};
foreach (Contact c in book.Where (c => c.LastName == "Smith")) {
Console.WriteLine (c.DisplayName);
foreach (Phone p in c.Phones)
Console.WriteLine ("Phone: " + p.Number);
foreach (Email e in c.Emails)
Console.WriteLine ("Email: " + e.Address);
}

18. Contacts List

25. http://www.unrealengine.com/udk/

26. IN THE SPOTLIGHT
THE WWE APP IS READY TO RUMBLE!
● Kevin Mills and Xudong He from UI Centric brought this
app to life.
● App features: easy-to-explore bios, stunning designs, and
unique interactions so that fans feel like they're a part of the
main event.
● Mills and He’s top tip: "Get familiar with the PlayerFramework.
Think Lean. Load time and content caching are important."
READY TO BUILD THE NEXT BIG APP? JOIN GENERATION APP FOR:
● Tips and tricks on Windows 8 and Windows Phone app development.
● 1:1 on-the-phone access to a Windows 8 and Windows Phone expert*.
● An exclusive Windows UI style design consultation*.
● An opportunity to test your app with qualified experts an App Lab.
Sign Up at www.generationapp.com
*See Ts&Cs on www.generationapp.com

28. http://aka.ms/bostonmeetup

29. http://aka.ms/bostonmeetup