1. Android hide
An unknown features

2. About Me
Android developer
● Tempos 21
● Catmóbil SCP
● Catdroid
@lepetitbernat
http://es.linkedin.com/in/bernatp

3. About speech
Restricted profiles
-> JellyBean+
Crash reports
-> ApplicationErrorReport
-> Send Feedback (2 ways)
Hide intents
-> Data usage

4. Restricted profiles
Added in JellyBean
● Android 4.3
● API 18+
● Tablets

5. Restrictions
TYPE_BOOLEAN
TYPE_CHOICE
TYPE_MULTI_SELECT
BroadcastReceiver
IntentFilter
android.intent.action.
GET_RESTRICTION_ENTRIES

6. extends BroadCastReceiver {
onReceive(...)
PendingResult result = goAsync();
new Thread()
run()
// ADD RESTRICTIONS
CODE! Create broadcast

7. new ArrayList<RestrictionEntry>();
new RestrictionEntry(KEY_BOOLEAN, true);
entry.setTitle("Dangerous enabled");
entry.setType(RestrictionEntry.TYPE_BOOLEAN);
add(entry);
CODE! Create restrictions

8. CODE!
Bundle extras = new Bundle();
extras.putParcelableArrayList(
Intent.EXTRA_RESTRICTIONS_LIST, restrictions);
result.setResult(Activity.RESULT_OK, null, extras);
result.finish();
Final steps!

9. UserManager usrManager = (UserManager) getSystemService(Context.
USER_SERVICE);
Bundle restrictions =
usrManager.getApplicationRestrictions(getPackageName());
restrictions != null
restrictions.get(...);
CODE! Using restrictions

10. Restrictions
Not enough?

11. Intent customIntent = new Intent();
customIntent.setClass(context, SettingsActivity.class);
extras.putParcelable(
Intent.EXTRA_RESTRICTIONS_INTENT, customIntent);
result.setResult(Activity.RESULT_OK, null, extras);
result.finish();
CODE! Custom restrictions

12. Links
● d.android.com
○ http://goo.gl/I0D3PU
● DevBytes
○ https://www.youtube.com/watch?v=pdUcANNm72o

13. Crash reports
Added in IceCream
● Android 4.0
● API 14+
● Leave user write messages

14. Crash reports

15. Crash reports
ApplicationErrorReport
● TYPE_NONE
● TYPE_CRASH
● TYPE_ANR
● TYPE_BATTERY
● TYPE_RUNNING_SERVICE

16. Exception e;
...
report = new ApplicationErrorReport();
report.type = ApplicationErrorReport.TYPE_CRASH;
...
crash= new ApplicationErrorReport.CrashInfo();
report.crashInfo = crash;
...
arn = new ApplicationErrorReport.AnrInfo();
report.arnInfo = arn;
…
CODE! ApplicationErrorReport

17. Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setClassName("com.google.android.feedback", "com.google.
android.feedback.FeedbackActivity");
intent.putExtra(Intent.EXTRA_BUG_REPORT, report)
startActivity(intent);
CODE! Intent

18. Crash reports
Intent.EXTRA_BUG_REPORT Intent.ACTION_APP_ERROR

19. CODE! Trick
FeedbackException
● Custom message
● Custom class name
● Custom stacktrace
● User messages

20. Links
● d.android.com
○ http://goo.gl/QZnjZW
● Black feedback
○ http://stackoverflow.com/a/20848542
● Google feedback
○ http://stackoverflow.com/a/22156938

21. Data usage

22. IntentFilter
android.intent.action.
MANAGE_NETWORK_USAGE
CODE! ApplicationErrorReport

23. Questions
?

24. Thanks
!https://github.com/alorma/Baug_Android_hide