Mark M. | has entered the room |
Mark M. | turned on guest access |
May 19 | 7:30 PM |
Susheel C. | has entered the room |
Susheel C. |
Hi Mark
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Mark M. |
hello, Susheel!
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Mark M. |
how can I help you today?
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Susheel C. |
I have a question about eclipse ADT.
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Susheel C. |
What is the name of the toolbar where you can change the theme for your app?
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Susheel C. |
I did something to mine and its missing
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Mark M. |
you mean, in the Graphical Preview tab for a layout?
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Susheel C. | |
Susheel C. |
Yes in the graphical layout
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Mark M. |
I didn't know you could get rid of that
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Susheel C. |
I have highlighted the red color region
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Tiru B. | has entered the room |
Susheel C. |
oh
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Mark M. |
I have no idea how to get that back, though I presume that there is a way
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Tiru B. |
Hi Mark and Susheel
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Susheel C. |
Ok
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Mark M. |
(hello, Tiru -- I will be with you in just a moment!)
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Susheel C. |
I have another question
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Susheel C. |
Hi
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Mark M. |
Susheel: let me take a question from Tiru first, since you already asked one
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Mark M. |
Tiru: do you have a question?
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Susheel C. |
absolutely
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May 19 | 7:35 PM |
Susheel C. |
please go ahead
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Tiru B. |
Yes... Is there any reason why SQLite queries on Android run slower when the table has indexes than when the table doesn't have indexes at all?
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Mark M. |
I would not expect that behavior
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Mark M. |
use EXPLAIN QUERY PLAN to see if it is actually using your indexes
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Tiru B. |
It sounds strange, but that's what we noticed, even on Nexus 5 running latest version of kitkat!
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Mark M. |
I can certainly see queries not being helped by indexes, if the indexes aren't the right ones and a table scan is still needed
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Mark M. |
off the cuff, I would not expect indexes to make the table scan itself longer
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Mark M. |
but I haven't dealt with really large database contents, so I cannot rule it out
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May 19 | 7:40 PM |
Mark M. |
Susheel: let's take your next question
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Tiru B. |
So, you suggest running EXPLAIN QUERY PLAN as a raw query from my Android app, and dumping the results?
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Susheel C. |
When I receive sms from a certain number is it possible to skip the usual sms notification and instead display a custom notification? It’s better if the sms is not stored in the usual sms inbox. I want to be able to start my app when I click on this custom notification. Is that possible?
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Mark M. |
Tiru: yes, or use the sqlite3 command-line utiliyt
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Mark M. |
er, utility
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Mark M. |
Susheel: on Android 4.3, you can abort the broadcast and do what you want, but then the entire message handling is up to you, as it will not be delivered to the inbox
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Mark M. |
on Android 4.4, you cannot interfere with the user's chosen SMS client
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Susheel C. |
ok
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Susheel C. |
what about versions prior to 4.3?
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Mark M. |
oh, sorry, I mean Android 4.3 and earlier there
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Susheel C. |
cool
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Susheel C. |
np
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Mark M. |
Tiru: do you have another question?
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Tiru B. |
Yes, Is there an easier way for implementing items sorted into section in a list view?
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Tiru B. |
For instances, I want tasks to be grouped by date
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Mark M. |
"easier way" than what?
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May 19 | 7:45 PM |
Tiru B. |
Adapter returning multiple different item types
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Mark M. |
well, that's going to be required for sections regardless of sorting
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Mark M. |
my MergeAdapter makes assembling such an adapter a bit easier
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Mark M. |
though the sorting part is up to you
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Tiru B. |
Actually, I meant grouping, not sorting
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Tiru B. |
Why isn't there an easier way as in iOS?
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Mark M. |
if it is easier for you to create an adapter per section for the section's contents, that's where MergeAdapter works well
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Tiru B. |
Does MergeAdapter ensure that section title item is not clickable?
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Mark M. |
yes, that's the default
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Mark M. |
there are other third-party libraries out there that handle sectioned lists that you can look at as well
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May 19 | 7:50 PM |
Tiru B. |
Any notable libraries that you know of?
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Mark M. |
sorry, there's a bunch of ListView ones, and I don't keep tabs on them all
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Mark M. |
try AndroidViews.net or android-aresenal.com
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Mark M. |
er, android-arsenal.com
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Tiru B. |
sure
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Mark M. |
Susheel: do you have another question?
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Susheel C. |
so only on ver 4.4, even if the user chooses default sms client I still cannot intercept the text?
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Mark M. |
oh, you can intercept the text
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Mark M. |
you just can't stop the user's chosen SMS client from *also* receiving the text
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Mark M. |
and showing the notification
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Susheel C. |
ok
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Mark M. |
and putting it in the inbox
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Susheel C. |
Got you
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Mark M. |
basically, as of Android 4.4, the use of SMS as an app control channel is no longer really viable
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Susheel C. |
ok
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Susheel C. |
I have another question....
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Mark M. |
go ahead
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Susheel C. |
Is it possible to send email via my app without having to choose which client I want to pick?
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Tiru B. |
Is there a standard way to detect when the user is idle? (In other words, the user is not actively using the app.. in a sense, the user is "away from keyboard")
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Mark M. |
Susheel: you can use the JavaMail library, but then you need SMTP account credentials
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Mark M. |
Susheel: or, you can talk to your server, and your server can send the email
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May 19 | 7:55 PM |
Susheel C. |
which is basically the username and password?
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Mark M. |
Susheel: otherwise, the user needs to be involved, via ACTION_SEND/ACTION_SENDTO
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Susheel C. |
ok
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Mark M. |
Susheel: username, password, SMTP server, etc. -- everything you normally configure in a mail client
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Mark M. |
Tiru: not really, as the idea is that the device goes to sleep then
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Susheel C. |
great. This works for all kinds of email clients? gmail, yahoo, irrespective?
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Mark M. |
JavaMail *is* an email client, in library form
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Susheel C. |
ok
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Tiru B. |
Is there a way to detect when the device is coming out of sleep?
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Mark M. |
whether any given SMTP server will talk to it depends a bit on that server and any requirements it may have that JavaMail may not support (e.g., TLS encryption)
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Susheel C. |
ok
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Mark M. |
and, it assumes that the user is interested in giving your app those details, or you are willing for the world's script kiddies to get at your hard-coded details
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Mark M. |
Tiru: not really
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Susheel C. |
Right
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Susheel C. |
Thanks a lot for your help Mark :)
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Tiru B. |
Does JavaMail library work as-is on Android, or is there a scaled-down version of JavaMail library?
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Mark M. |
AFAIK, people are just using standard JavaMail
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Mark M. |
there may be somebody who has done a tweaked version, though I don't recall hearing of it
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May 19 | 8:00 PM |
Mark M. |
if either of you have another question, go right ahead
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Susheel C. |
And I can automate sending sms and emails using AlarmManager, right?
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Mark M. |
yes
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Susheel C. |
great
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Tiru B. |
Have you tried Genymotion?
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Mark M. |
not recently
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Mark M. |
I have a fairly powerful notebook, so the x86 emulators (plus hardware) work fine for me
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Tiru B. |
on mac, or windows?
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Mark M. |
Linux
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Tiru B. |
Is HAXM supported on Linux?
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Mark M. |
there's an equivalent (KVM)
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Tiru B. |
great.. is that covered in the book?
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May 19 | 8:05 PM |
Mark M. |
you mean how to set it up?
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Tiru B. |
yes
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Mark M. |
I mostly point to the developer docs for it, as I cannot really add much to it
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Tiru B. |
Any links that can help?
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Mark M. | |
Mark M. |
see "Configuring VM Acceleration on Linux"
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Mark M. |
and ignore their comments regarding VirtualBox -- I haven't had any problems using both VirtualBox and KVM
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Tiru B. |
Do you run your Linux inside a VirtualBox VM?
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Mark M. |
no, I run it on my notebook
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May 19 | 8:10 PM |
Susheel C. |
Thank you Mark, have a good night
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Tiru B. |
I am trying to understand why they talk about VirtualBox on that page
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Susheel C. | has left the room |
Mark M. |
my guess is that they ran into some driver conflicts somewhere along the line
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Mark M. |
but, again, I haven't had any problems
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Tiru B. |
Any guess when Android Studio would come out of beta?
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Mark M. |
possibly Google I|O 2014 (late June)
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Tiru B. |
Do you still use ADT in Eclipse, or have you started using Android Studio?
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Mark M. |
I use both, mostly Eclipse
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Tiru B. |
Do you expect any big announcements at I/O 2014?
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Mark M. |
I have given up guessing on what will happen at I|O :-)
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Tiru B. |
Yes, that's a sensible thing to do! :-)
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May 19 | 8:15 PM |
Tiru B. |
Any new trends and recent developments with regard to Android development?
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Mark M. |
um, that's kinda broad
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Tiru B. |
I know
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Tiru B. |
Any significant things that you find interesting
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Mark M. |
sorry, but that's not really what this chat is for
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Mark M. |
I'm here to help you solve development problems
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Tiru B. |
no problem
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Tiru B. |
Are there any other consultants who work for commonsware, or do you do it alone?
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Mark M. |
CommonsWare is just me
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Tiru B. |
great
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Tiru B. |
Thanks for your time... I'll catch you sometime later
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Tiru B. |
Have fun
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Tiru B. |
bye
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Mark M. |
OK, have a pleasant day!
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Tiru B. |
thank you
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Tiru B. |
good night
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May 19 | 8:20 PM |
Tiru B. | has left the room |
May 19 | 8:30 PM |
Mark M. | turned off guest access |