The document discusses contextual communications and why it is important. It notes that there are over 7 billion people communicating and provides examples of code to make phone calls and messages more contextual by checking permissions, displaying alerts, and fallback options. It suggests that adding context can require 100-750 additional lines of code but is worth it. It ends by asking the reader to rate the presentation and providing contact details for further information.

2. WE’RE

3. COMMUNICATING

4. WRONG!

5. Contextual Communications – Why should you Care?
<Say>Hello MobileTrends!</Say>
@marcos_placona
marcos@twilio.com
Developer Evangelist @ Twilio

6. >7.2bn
A few numbers

16. Contacting experience

17. Contacting experience

20. Contacting experience

21. intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + "1234567890"));
if (ActivityCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.CALL_PHONE) !=
PackageManager.PERMISSION_GRANTED) {
startActivity(intent);
}
<uses-permission android:name="android.permission.CALL_PHONE" />

23. AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setMessage("Calling...")
.setCancelable(false)
.setPositiveButton("Hang-up", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
phone.disconnect();
}
});
AlertDialog alert = builder.create();
alert.show();
phone.connect("+1234567890");

24. AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setMessage("Calling...")
.setCancelable(false)
.setPositiveButton("Hang-up", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
phone.disconnect();
}
});
AlertDialog alert = builder.create();
alert.show();
phone.connect("+1234567890");

25. Demo Time

30. try {
getApplicationContext().getPackageManager().getPackageInfo("com.facebook.katana", 0);
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("fb://page/<id_here>")));
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}

31. try {
getApplicationContext().getPackageManager().getPackageInfo("com.facebook.katana", 0);
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("fb://page/<id_here>")));
} catch (PackageManager.NameNotFoundException e) {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.facebook.com/<user_name_here>")));
}

33. Demo Time

38. Demo Time

40. ~100 Lines
~350 Lines
~750 Lines

42. Who thinks it’s worth it?

43. +48 732 483 676
How did I do?
@marcos_placona
github.com/mplacona
marcos@twilio.com
Developer Evangelist @ Twilio
Text 1-10

44. +48 732 483 676
Text 1-10github.com/mplacona
marcos@twilio.com
Developer Evangelist @ Twilio