**** BEGIN LOGGING AT Sat Aug 11 02:59:58 2012 Aug 11 03:27:42 i got my first smartphone recently and I'm looking forward to deving on it, my version is 4.0.4 on the phone but the tutorial recommends installing the 4.1 sdk, will my program run on the phone if I select the latest android sdk to build against? Aug 11 03:42:57 i guess using 4.1 works Aug 11 03:53:02 hi, anybody has the experience with install a cocos2d(-x) game to android? Aug 11 03:55:26 using ndk Aug 11 04:05:48 are layout params consistent? Aug 11 04:06:05 as in, if i remove a view, should it shrink automatically or should i set new layout params? Aug 11 04:06:21 i'm removing items from a table row but it seems to be keeping the same size Aug 11 04:06:36 leaving blank space Aug 11 04:23:37 hello Aug 11 04:25:41 I'm getting a weird issue on some devices if I create a RandomAccessFile object, I eventually get a SIGSEGV in my app even if I do nothing but close the object Aug 11 04:27:14 hmm, nice concept http://mapsaurus.com/ Aug 11 04:27:22 if I don't use a RandomAccessFile at all, I don't experience any SIGSEGV anymore Aug 11 04:29:00 ohoh, its ron_frown ! Aug 11 04:29:05 ? Aug 11 04:29:18 heh, they are already OTA'ing Curiosity's systems Aug 11 04:29:59 apparently its easier to OTA a rover millions of miles away than many android phones, amazing ! Aug 11 04:30:14 ron_frown: yes, you ;) Aug 11 04:30:36 its easy to release ota's to android hardware, just hardware for major manufacturing companies to maintain their roms with new hardware always coming out Aug 11 04:30:47 make otaupdate Aug 11 04:30:50 done Aug 11 04:31:03 oh yeah, there is a new website / service for special roms now Aug 11 04:31:11 i only barely read about it Aug 11 04:31:11 yeah I dont get that Aug 11 04:31:46 does anybody here use eclipse on a mac? Aug 11 04:31:49 all that REALLY matters is you get the proper update.zip in the sdcard and you write the approprate data to the cache partition Aug 11 04:31:56 ultra- i do Aug 11 04:31:58 http://developers.slashdot.org/story/12/08/09/2251253/custom-android-rom-developers-get-ota-update-capabilities-like-carriers Aug 11 04:32:05 ultra-: me too Aug 11 04:32:05 when i try to scroll up from logcat, it constantly resets back to the bottom and it's driving me insane Aug 11 04:32:14 oh, yeah. heh Aug 11 04:32:18 theres a down arrow with a line under it Aug 11 04:32:22 hit it to pause logcat buffer Aug 11 04:32:22 OR Aug 11 04:32:24 i always use logcat in a console (xterm) window Aug 11 04:32:28 adb logcat at command line Aug 11 04:33:24 ok that seemed to do it Aug 11 04:33:28 still figuring all this out :) Aug 11 04:36:18 so, sorry to ask, but do you guys own android phones and not iphone? Aug 11 04:38:10 i have an android phone and an ipod touch, soon some wp8 device Aug 11 04:38:19 wp8 Aug 11 04:38:29 i coded for .net compact, i think it was winmobile 6 Aug 11 04:38:35 in c#… i actually enjoyed it Aug 11 04:39:03 wp8 is WinRT w/o JS i guess. its getting close to release and still few details Aug 11 04:39:15 its gonna bomb Aug 11 04:39:17 i like the .net 2d drawing library… i wrote most of my controls from scratch Aug 11 04:39:36 ron_frown: i don't think so Aug 11 04:39:36 yeah i don't think windows phone is going anywhere Aug 11 04:39:45 i never see anybody who owns one Aug 11 04:39:53 haven't checked the market share Aug 11 04:39:59 still terrible Aug 11 04:40:17 i think they just got in too late Aug 11 04:40:31 I am the biggest supporter of ms's .net platform Aug 11 04:40:34 i have a windows mobile 6 phone for work, because of a certain program we need to run… it's so awful Aug 11 04:41:01 ron_frown: i like coding with it but i don't have a need anymore… just java, c, and python Aug 11 04:41:20 but winrt is already getting a ton of negative publicity and its not even out Aug 11 04:41:25 its like vista all over again Aug 11 04:41:29 i don't even know what that is Aug 11 04:41:35 doesnt matter what they do, or how they do it Aug 11 04:41:37 they will fuck i tup Aug 11 04:41:39 vista where you can't even release an IP Aug 11 04:41:49 i hate it when this deuchebag basically takes my app description and lifts it for his own app, which is similar Aug 11 04:42:18 i've been hesitant to describe any app i'm working on Aug 11 04:42:24 if hardware vendors have to pay for licensing the os, might as well just go with android Aug 11 04:42:38 even tho what i'm doing is a very specific use and requires python server code on mac/pc Aug 11 04:43:23 although i've only been coding with android for < 1 week Aug 11 04:43:54 man, if i was getting into mobile now, i would wait for a few months and just read basic mobile UX stuff Aug 11 04:44:25 mobile is what is important, specific techs and platforms are not Aug 11 04:45:05 designing a good mobile ux is very different than designing a static-context app, like a website, desktop app, etc Aug 11 04:46:33 and why i disagree with ron_frown , is that part of mobile UX is now multi-device experience Aug 11 04:46:52 and i think MS is in a great spot to leverage this with their new platform Aug 11 04:46:59 and ecosystem Aug 11 04:47:17 just like apple is. android, i fear will remain a consumer plaything with a much smaller ecosystem Aug 11 04:47:17 except honestly most platfoms ux doesnt map 1:1 anyway Aug 11 04:49:27 disagreement is weak, fight to death for honor Aug 11 04:50:37 it's going to be hard for MS to do anything with such a weak UI and weak platform. at least when Android wasn't number 1 it was clear the platform was fundamentally superior to iOS and had the potential to be better. Aug 11 04:50:45 sounds to me like g00s is jsut a bit more of an optomist than myself Aug 11 04:51:10 ron_frown: i dunno, but the next 6 mos will be exciting :) Aug 11 04:51:19 I think once jellybean was released Aug 11 04:51:22 android cleaned house Aug 11 04:51:54 as soon as it lands on more handsets, I think its gonna be hard for anyone to catch up Aug 11 04:52:11 i think where android will shine, is when oems use or repurpose it for something else - like this camera i am reading, will be using android instead of whateverthefuck they used before Aug 11 04:52:18 ahha Aug 11 04:52:20 android goign to be sued out of existence by steve jobs biographer Aug 11 04:52:22 you should see what I did with andorid Aug 11 04:52:29 and i can write a special app for my camera, that adds a feature it doesn't normally have, that is awesome Aug 11 04:53:21 java being a POS could be an issue at somepoint Aug 11 04:53:35 far, android doesnt really run a java vm Aug 11 04:53:42 Hello. Im a "total" Android noob. Any suggestion from where to start about compiling from source for Android (linux stuff)? Also I got a impression thats possible to have a remote prompt over ADB driver, is this correct? Any clue ? Aug 11 04:53:42 dalvik whatever Aug 11 04:53:45 all incarnations of java suck Aug 11 04:53:47 it is different Aug 11 04:53:50 for reasons i dont fully understand Aug 11 04:53:58 I cant find rsync on busybox :( Aug 11 04:54:05 well it's clear you don't even know what Java is Aug 11 04:54:07 so maybe that's it Aug 11 04:54:22 java actually has a lot of saving graces... the hotspot stuff makes java excel at server stuff Aug 11 04:54:28 lots of people write bad java Aug 11 04:54:31 lol Aug 11 04:54:43 I dont like java because c# owns java's nuts Aug 11 04:54:58 C# is awesome but I loathe .net Aug 11 04:55:04 i'd love C# compiling to the JVM :) Aug 11 04:55:09 yeah they managed to not screw up c# Aug 11 04:55:15 Its a world of pros & cons. Its kinda pointless comparing, in a practical sense. Aug 11 04:55:16 DanDare: look at the android ndk if I understand correctly what you are trying to do Aug 11 04:55:17 other that via distribution limitation Aug 11 04:55:26 meh theres a lot of shit thats bad about java, but not usually the stuff automatically bitch about with very little knowlege Aug 11 04:55:29 mr6, alright. Thanks, will take a look. Aug 11 04:55:56 its not slow by nature, the UI doesnt have to suck by nature Aug 11 04:56:17 so I have a android:windowBackground style set, and relevant drawables in drawable-land-xhdpi, drawable-xhdpi etc. This works okay when the app is first started - but on rotation it doesn't go and get the -land one (or the other way around if it was started in landscape). How can I get around this? Aug 11 04:56:37 stop handling configuration changes? Aug 11 04:56:38 DanDare: it is the native toolchain for Android so you can, for instance, port existing C/C++ code to the mostly ARM ABIs Aug 11 04:56:43 I'm not Aug 11 04:56:44 and actually the .net clr is bitchin Aug 11 04:56:50 DONT LIE TO BE WABZ Aug 11 04:56:50 mono is bitchin as well Aug 11 04:57:00 me Aug 11 04:57:08 i'm out Aug 11 04:57:30 :( Aug 11 04:57:31 mr6, cool. Sounds complex but well, gonna check about it Aug 11 04:58:00 Hi, was wondering if this is indeed the 'right' way to check if a device has a camera (facing away from the screen) --> http://www.mkyong.com/android/android-how-to-check-if-device-has-camera/ Aug 11 04:58:04 I mean, even if your code is OK, the environment in quite different, and I dont know how much :p Aug 11 04:58:10 *much its different Aug 11 04:59:10 hmm, i just want rsync Aug 11 05:00:13 Well, I think I can get rsync somewhere out of busybox Aug 11 05:01:34 hmm, I fixed it by putting the drawable xml in -land as well (even though it's exactly the same) Aug 11 05:01:40 seems like a bug Aug 11 05:22:20 Hi, I'm trying to create a function called IsCameraSupported in a class called NativeHost that will basically check if the device has a camera (facing away from the device). I'm getting tripped up on initializing the context and was wondering if anyone could help me. This is what I have so far --> http://pastebin.com/UTZgLUk0 . Thank you very much. Aug 11 05:35:24 aLearner is NativeHost an activity? How is it getting the context? Aug 11 05:40:50 Galaktik: Thank you. It doesn't look like NativeHost has an activity. Aug 11 05:41:23 Galaktik: It Aug 11 05:41:52 yea Aug 11 05:41:57 Galaktik: Oops - sorry. It's just a class by itself. That's why this is tripping me up. How do I get the context if there's no activity? Aug 11 05:41:58 make your class extend Activity Aug 11 05:42:10 or try getApplicationContext() Aug 11 05:42:24 maybe try that first . Aug 11 05:42:45 devslash: Which one? try getApplicationContext()? Aug 11 05:42:50 yes Aug 11 05:43:02 DanDare: yeah, you can probably find an arm-rsync read to go, but since this is android-dev i was compelled to give the dev answer :> Aug 11 05:43:04 are you getting a runtime error at the momeny Aug 11 05:43:07 moment Aug 11 05:43:21 devslash: Thank you. So, something like this? Context context = getApplicationContext(); Aug 11 05:43:30 yea Aug 11 05:43:52 that DOES return a context although your class doesn't extend activity so hopefully it will still work Aug 11 05:44:17 devslash: Not run the code yet - Eclipse seems to be complaining (cannot convert from NativeHost to Context) Aug 11 05:44:30 which line ? Aug 11 05:44:58 devslash: Line # 6 --> http://pastebin.com/UTZgLUk0 Aug 11 05:45:37 change that to Context context = getApplicationContext(); Aug 11 05:46:28 devslash: Thank you very much. Let me try that. :-) Aug 11 05:46:41 ok Aug 11 05:47:31 no problem Aug 11 05:47:40 I'm glad to be the one helping this time Aug 11 05:47:45 devslash: how can you call Context#getApplicationContext() without a reference to a context? Aug 11 05:47:47 usually I'm in here asking all the questions Aug 11 05:48:06 devslash: Now Eclipse says ---> "The method getApplicationContext() is undefined for the class NativeHost" Aug 11 05:48:11 ahh Aug 11 05:48:12 ok Aug 11 05:48:20 you need to have your class extend Activity Aug 11 05:48:30 devslash: That's cool. Thanks for trying to help me out. Aug 11 05:48:31 aLearner: you need to pass a context to your NativeHost constructor Aug 11 05:48:37 devslash: no Aug 11 05:48:45 you don't Aug 11 05:49:06 ok Aug 11 05:49:12 if you already have a main Activity Aug 11 05:49:26 do something like this Aug 11 05:49:37 So something like this --> http://pastebin.com/F0smEKQX Aug 11 05:49:37 change public boolean IsCameraSupported() to public boolean IsCameraSupported(Context c) { Aug 11 05:49:54 devslash: Oh OK. Sorry. Aug 11 05:50:05 your class has a main activity right ? Aug 11 05:50:26 devslash: Yes, it does - but it's in another class. Aug 11 05:50:30 ok Aug 11 05:50:32 doesn't have to be a main activity, it can be any android component Aug 11 05:50:40 how do you call IsCameraSupported() Aug 11 05:51:19 devslash: It's a little complicated - I call it from a C++ file since I'm developing using the NDK. :-/ Aug 11 05:51:43 ok... Aug 11 05:51:48 devslash: Or at least that's what I think. I'm super new to this. Aug 11 05:51:58 i haven't dealt with that Aug 11 05:52:06 i write my android apps in pure java Aug 11 05:52:28 devslash: That's very cool. What if we were to ignore the C++ component. How would we go about solving this, then? Aug 11 05:52:37 ok Aug 11 05:52:55 do you call IsCameraSupported() from your C++ code ? Aug 11 05:53:26 devslash: Yes - and it in turn calls the Java implementation of IsCameraSupported() Aug 11 05:53:32 aLearner: I already told you the solution Aug 11 05:53:47 it is very simple Aug 11 05:53:48 mr6: I'm sorry - I must've missed that. Aug 11 05:53:56 mr6 couldn't he then do MainActivity.this.getApplicationContext() Aug 11 05:54:19 mr6: You said ---> you need to pass a context to your NativeHost constructor Aug 11 05:54:27 devslash: no, what does 'this' refer to then? Aug 11 05:54:41 to the main activity Aug 11 05:54:42 aLearner: yes Aug 11 05:54:53 mr6: I guess my next question would be to ask how I would go about doing that... Aug 11 05:54:55 because he is calling IsCameraSupported() from C++ code Aug 11 05:54:59 devslash: no, it won't, 'this' is his NativeHost object Aug 11 05:55:12 i said MainActivity.this Aug 11 05:55:14 not just this Aug 11 05:55:23 devslash: that is non-sensical in this case Aug 11 05:55:28 why? Aug 11 05:55:44 doesn't that reference the MainActivity class that loads initially Aug 11 05:55:52 devslash: because NativeHost is not a sub-class of MainActivity Aug 11 05:56:04 devslash: no, you are confused Aug 11 05:56:04 i dint think that matters Aug 11 05:56:08 dont Aug 11 05:56:28 ok maybe you know better… aLearner good luck mr6 can help you Aug 11 05:56:45 devslash: Thank you for your help! :-) Aug 11 05:56:51 devslash: try it in a simple case if you don't believe me Aug 11 05:56:52 np Aug 11 05:57:09 mr6: How do I pass a context into my NativeHost constructor? :-? Aug 11 05:57:13 devslash: go into some other class that isn't called MainActivity and try to reference it that way Aug 11 05:57:21 ok Aug 11 05:57:27 hang on Aug 11 05:57:31 need to fire up eclipse Aug 11 05:57:38 aLearner: ok Aug 11 05:58:03 aLearner: so like you said, leaving JNI out of this for a moment Aug 11 05:58:16 mr6: Yes... :-) Aug 11 05:58:51 if you are in an android component, such as an Activity or Service, and assuming NativeHost is not a singleton or static class... Aug 11 05:58:55 hello! Aug 11 05:59:25 just set it up so you can do 'NativeHost nh = new NativeHost(this)' Aug 11 05:59:34 mr6: You're right I am indeed in an Activity and NativeHost is not a static class (not sure what singleton means)... Aug 11 06:00:08 then in NativeHost constructor set a private class member = to the context you passed in Aug 11 06:01:43 aLearner: making any sense? Aug 11 06:02:55 mr6: Thinking over it...This is what I have so far --> http://pastebin.com/gQ5QBfHa ... I don't understand "then in NativeHost constructor set a private class member = to the context you passed in" yet... Aug 11 06:04:01 aLearner: just a heads up that I'm not going to look at your code, just discuss it here :> Aug 11 06:04:14 mr6: I still need to pass in the context in the constructor as you suggested --> public NativeHost(Context context) Aug 11 06:04:32 not a policy on the channel or anything i just don't feel like clicking links ha Aug 11 06:04:44 mr6: That's cool. Whatever makes you comfortable / happy. Aug 11 06:05:51 mr6: So this line --> NativeHost nh = new NativeHost(this); needs to be in "public class MainActivity extends Activity" - right? Aug 11 06:06:15 aLearner: so I'm saying that in NativeHost you should have a private class member 'Context c' for instance, that you set in the contstructor Aug 11 06:06:39 aLearner: and keep in mind 'this' is an object of type Context Aug 11 06:07:04 technically Activity, but for now you can consider it a Context since it subclasses it Aug 11 06:07:31 aLearner: and yes, that line can go in MainActivity Aug 11 06:08:09 mr6: Thank you very much. But if that line goes in MainActivity it's still unclear how nh will be used in NativeHost :-/ Aug 11 06:08:20 wut Aug 11 06:09:16 Look i don't know what you are trying to code exactly, that is up to you, I made teh assumption for simplicity that you were creating an instance of 'NativeHost' in this activity Aug 11 06:09:37 mr6: You're right. This indeed true. Aug 11 06:10:46 the goal was just to get a Context instance into a NativeHost instnace, go try to make that work, if that doesn't work in your app's architecture then come back and re-phrase the question if you can't figure it out still Aug 11 06:10:46 mr6: Actually - I take that back - I need to check more carefully. Aug 11 06:11:10 mr6: Thank you very much for your help. Let me see if I can piece things together. Aug 11 06:12:24 aLearner: yeah hope it points you in the right direction, though I think if you really are using JNI it is going to get more complicated Aug 11 06:14:49 mr6 yea i guess that works Aug 11 06:14:51 mr6: Thank you for your insight. It turns out that the class NativeHost is _not_ instantiated in the class 'MainActivity'... Aug 11 06:15:31 Maybe Context context = MainActivity.this Aug 11 06:16:18 Galaktik: Thanks...But you're suggesting I put this line in NativeHost? Aug 11 06:16:23 I always end up fighting for my life when dealing with context. I ussually find it easier just to pass it as they say Aug 11 06:16:30 Yes Aug 11 06:16:37 Galaktik: Ah OK - thank you. Aug 11 06:17:58 Galaktik: Nope that doesn't work either because of scope issues...I need to piece together mr6's solution :-) Aug 11 06:19:23 I've been developing an app lately and making rather quick progress given the circumstances. One of my current issues is rather mundane, but seeking out the cleanliness factor, I need to have it checked and fixed. Aug 11 06:20:48 aLearner: Yeah it doesn't work often for me but figured it was worth a shot. mr6 probably does have the best solution for this Aug 11 06:21:26 I have a custom class keep track of certain data modified while using the app. onDestroy(), this class is serialized (successfully) to the external storage. onCreate() it is then loaded. Aug 11 06:22:04 This whole process works like a charm. My issue seems to be a leak durring the onDestroy when I run a 'MediaScannerConnection.scanFile' Aug 11 06:22:36 Galaktik: No worries. Thank you for your input. Aug 11 06:25:05 Previous coding tid-bits leads me to believe this is an issue with the event that activates the service. Is it that the function performs a non-blocking action that allows the onDestroy to finish before the service is completed? if so, how would I prolong this? Aug 11 06:25:09 Komack57: I don't have anything on that for you right now. Sounds simular to what I'm aiming to tackle next in my app Aug 11 06:26:06 Galaktik: it's a very useful function for apps that need to have persistant data :P Aug 11 06:28:33 Everything in my code SEEMS to work... i can exit the program, load it back up, and everything's fine. The file IS accessible (as it should be), just this error report isn't very... clean XD Aug 11 06:30:47 hi all Aug 11 06:31:08 Hello QubeZ! Aug 11 06:31:37 sup Galaktik Aug 11 06:32:14 mr6: I finally understand what you were suggesting. Took a while, but now I see your solution end to end. Aug 11 06:32:28 mr6: Thank you for pointing me in the right direction. :-) Aug 11 06:33:10 QubeZ: Just looking at some tutorials working out some things on my app. How about you? Aug 11 06:33:20 fixing bugs in mine :) Aug 11 06:33:56 aren't we all XD Aug 11 06:34:07 if you aren't fixing bugs, you aren't working on it XD Aug 11 06:34:13 Komak57: true dat Aug 11 06:34:34 i'm nearing 1000 downloads and want to keep the updates going to hopefully keep the word spreading Aug 11 06:35:03 I am still in dev stages. Almost there though! Aug 11 06:35:06 whatcha workin on? Aug 11 06:36:05 Its an App for Restaurants. Something like OpenTable Aug 11 06:37:08 mmm, how i'd like to put mine on the market, but mine's for a corporation i work with. As i don't particularly have direct authorization to be developing it, i don't even know if ill get compensation. But it helps with my work, and itll help with my co-workers, so it's worth the effort. Aug 11 06:38:56 I get the joys of Web Services and SQL Injection prevention soon for database connection soon. At least the android side will be fairly easy. Or so I think. Aug 11 06:39:33 I've got quite a bit of SQL experience behind me :P you'll do just fine Aug 11 06:40:04 Just, don't get lazy about the security, kay? Aug 11 06:40:39 Oh I won't. Been reading up big on the security side. Aug 11 06:41:02 I heard rogue SQL statement and realized that was very bad lol Aug 11 06:41:26 preventing sql injection on android is pretty easy using parameterized queries Aug 11 06:43:30 -blinks- i don't think i've heard the term SQL injection Aug 11 06:47:25 anyways, it's late :3 was nice chatting with you guys. wish someone knew a fix to my bug Aug 11 06:47:41 whats the bug? Aug 11 06:47:45 SQL Injection is probably the most common SQL-related attack Aug 11 06:47:47 Komak57: I was looking for my bookmark on it. Check it out. Bad stuff Aug 11 06:48:11 Galaktik: just gimme the short version, i can put 2 n 2 together XD Aug 11 06:48:36 QubeZ: I have a leak when running MediaScannerConnection.scanFile onDestroy() Aug 11 06:48:36 Putting a SQL statement in a web form attempting to get a rogue statement to pass to the database Aug 11 06:49:25 Galaktik: ahh, okay Aug 11 06:50:34 Galaktik: i prevent most of that with a socket server rather than a direct sql feed (keeping sql local-only) Aug 11 06:50:39 classic example is ' OR 1=1; -- Aug 11 06:50:49 in password field Aug 11 06:51:27 though that also involves unsecured passwords in databases :P Aug 11 06:52:10 (or from XKCD, Little Bobby Tables. His name ended with '; DROP DATABASE students; -- Aug 11 06:52:13 ) Aug 11 06:56:08 does anyone know the google page for e4gt cm9 bugs? Aug 11 06:56:28 cant find it on xda Aug 11 06:56:36 No passwords, just information that if it can be exploited would probably keep me out of Google Play Aug 11 07:04:23 oh noes, Galaktik's app is gonna leak credit card info! Aug 11 07:08:05 Komack57: No CC info either, just user info I don't want anyone to get their hands on Aug 11 07:30:44 Is it possible to show the in-app billing interface as a dialog..i.e. without switching activities? Losing GL context sucks..:(.. >= android 2.1 btw Aug 11 07:32:21 if not..i'm wondering if it is safe to use a modified GLSurfaceView so you don't lose hte context. Aug 11 08:16:08 I'm working with tabs, and I get the error "Fragment is already added", even if I check if it is added or not through Fragment.isAdded() Aug 11 08:16:13 see http://pastebin.com/rA788wna Aug 11 08:16:36 why does it happens? doesn't "isAdded()" check if the Fragment is added or not? Aug 11 08:33:48 can I have some fragments added and switch from one to another? how? Aug 11 08:35:41 replace() crash if the new fragment was already added, even if I check it Aug 11 08:38:28 guys, actually thinks are quite simpler than android, sorry, I have to say it Aug 11 08:58:03 So, I handle optionselect event from the options menu and call finish() which ahould Aug 11 08:58:15 Should stop the program, and it does Aug 11 08:58:38 But once I fire it up some stack variables are not reset Aug 11 08:58:53 As if the program never stopped. Aug 11 08:59:31 Any ideas? Aug 11 09:18:56 hi Aug 11 09:19:04 how can I have some fragments and switch (display) from one to another? Aug 11 09:19:14 how cna i create a horizontal scroll Aug 11 09:19:27 to change emotion https://www.dropbox.com/s/6qgy4c82cqhwxci/scrollswipe.png Aug 11 09:20:14 pepigno75, http://developer.android.com/reference/android/widget/HorizontalScrollView.html Aug 11 09:21:17 Utopic: ok but how can i move scroll step by step Aug 11 09:22:00 I don't know... doesn't the mouse works for that? Aug 11 09:23:32 Utopic: no Aug 11 09:24:36 if you want to change an image, just change it Aug 11 09:25:02 there's no need of a scroll Aug 11 09:30:58 yoh Aug 11 09:32:17 yoh Aug 11 09:36:07 are the developer console device stats documented anywhere? Aug 11 09:36:36 in particular, id like to know how active users is calculated, as it is evidently not the difference between total installs and total uninstalls Aug 11 09:38:28 im mainly curious as my retention rate has been very steady, and ive suddently had a big jump in installs, no uninstalls, but a /decrease/ in active users, which seems counterintuitive Aug 11 09:39:12 would also be interesting to know whether debug builds corrupt these values Aug 11 09:42:19 I've got an ArrayList that stores type "Agent" - many of the items I add to it however implement different interfaces (ex: Selectable). How can I quickly find all of the objects that implement a particular interface? Aug 11 09:43:32 loop through the list, if you dont want to use instanceof you could wrap them all in a container of some kind and set flags to indicate what type to cast them to Aug 11 09:44:42 That's what I'm doing now but coming from Python this is a bit cumbersome Aug 11 09:45:44 back, just managed to nudge the wifi toggle on my laptop :S Aug 11 09:45:56 Bacta, did you get my reply / did it make sense to you? Aug 11 09:46:14 Hi robb_www: Yep, here's my reply: That's what I'm doing now but coming from Python this is a bit cumbersome Aug 11 09:47:01 python almost certainly does the same behind the scenes Aug 11 09:47:05 In some ways it doesn't feel right to be throwing everything in a single ArrayList but I use that in my main game loop to draw everything Aug 11 09:47:30 Well Python doesn't have generics Aug 11 09:49:38 yer, but python doesnt need it since they have duck typing Aug 11 09:49:59 Besides the point really Aug 11 09:50:14 I guess I wanted to know whether Java has something similar to list comprehensions Aug 11 09:50:25 I haven't coded in Java for many years Aug 11 09:51:17 basically whenever people write code in declarative or dynamically typed languages, i think its important to consider how a statically typed imperative language would perform the same task Aug 11 09:52:51 So your suggestion is to use instanceof? Aug 11 09:53:00 It's what I'm doing right now but it's pretty dirty Aug 11 09:53:11 Which makes me wonder whether a single list is the right thing to do Aug 11 09:53:47 instanceof would work, but reflection is slow, a container class shouldnt add much overhead and imho is preferable Aug 11 09:54:58 That may be what I'm doing already but can you elaborate? A container class? Aug 11 09:55:10 1 sec ill illustrate on pastebin Aug 11 10:03:44 Bacta, so, this might not actually compile exactly as-is, but should give you the idea ;) Aug 11 10:03:50 http://pastebin.com/e01nNcWB Aug 11 10:03:56 thanks Aug 11 10:05:08 so in the second case your creating new AgentWrapper instances with type suitably set to either PERSON or MONKEY, and on that basis the code can easily tell how to handle it /without/ using instanceof or other parts of the reflection API Aug 11 10:05:12 mmm that's sort of what I've done Aug 11 10:05:26 the 2nd one is superior, which have you done? Aug 11 10:05:31 the first Aug 11 10:05:38 thought so Aug 11 10:05:45 and as you said it's a bit flaky Aug 11 10:06:08 it does work, theres just the usual trade-off between memory and processing resources Aug 11 10:07:23 how bad is instanceof in terms of performance? Aug 11 10:08:01 Bacta: should be ok Aug 11 10:08:17 its a common operation that i think is somewhat optimized Aug 11 10:08:51 yep, my bad, looking at stackoverflow the argument is actually that using reflection is against the spirit of OO programming, rather than cost Aug 11 10:09:28 Doesn't really feel right design wise Aug 11 10:11:23 g00s do you have any idea how active users is calculated? Aug 11 10:11:32 nope Aug 11 10:11:56 pitty, thanks anyway Aug 11 10:22:05 Are there any APIs for doing event driven programming in Android? Aug 11 10:22:14 Defining my own events etc.? Aug 11 10:25:36 Is there a way to display html content without having to call Html.fromHtml() in code? Aug 11 10:25:51 anyone knows if i can get the device phonenumber from sims serialnumber if the number is not stored on the card? Aug 11 10:27:34 blacki|dl: it seems that we can only get the IMSI from the SIM Aug 11 10:28:09 hoangtran whats an IMSI? Aug 11 10:28:19 how can I have some fragments and switch (display) from one to another? Aug 11 10:29:00 on my phonecard the serial includes some parts of the phonenumber Aug 11 10:29:25 I get "Fragment already added:" if I call replace() twice with same fragment Aug 11 10:29:26 blacki|dl: http://en.wikipedia.org/wiki/Subscriber_identity_module#International_mobile_subscriber_identity_.28IMSI.29 Aug 11 10:30:01 even if I check it with (fragment.isAdded() ) Aug 11 10:30:09 blacki|dl: is phonecard == SIM ? Aug 11 10:30:28 hoangtran: yes Aug 11 10:31:20 hoangtran: i can get the IMSI? wehre the last digits are the MSIN (phonenumber) Aug 11 10:32:32 blacki|dl: you can get imsi: String imsi = ((TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE)).getSubscriberId(); Aug 11 10:33:47 blacki|dl: I have no idea about the relation between IMSI and phone number Aug 11 10:34:22 hoangtran: thats what the wiki article says :) Aug 11 10:34:47 blacki|dl: and on some devices, you can see this value in the About Phone screen :) Aug 11 10:34:51 If I draw a View on my Canvas, will the View keep all of it's Events? For example, can I call View.isPressed() to see if the user is clicking the drawn View? In other words, is the Canvas object of Android a bit more sophisticated then that Canvas element of HTML5 and Canvas object of J2ME? Aug 11 10:35:43 hoangtran: in my special case its empty :) Aug 11 10:36:57 hoangtran: and my subscriberID does'nt owns parts of my number :( Aug 11 10:37:43 for explantation... i need the number to auth on a service that will be bound to the mobilenumber and not to the device Aug 11 10:37:55 blacki|dl: not so special, I guess :), most of the guys around me don't see it on their phone. Aug 11 10:39:08 i think i have no number on my sim cause its very old... i think i got it in 2000 Aug 11 10:39:12 blacki|dl: regarding the relation, we hadn't found a way to get the phone number programmatically, so we're having to prompt the user for that values, seems abit shame Aug 11 10:39:41 hoangtran: but how can i promise that it is the right number? Aug 11 10:40:54 blacki|dl: in my case, no way from the app itself, we use other 'traditional' approach: confirm by sms/email, ... Aug 11 10:41:40 hoangtran: yes, confirmation by sms could be the only way but at the moment its a loan problem :) Aug 11 10:42:22 hoangtran: so i need to register user with number an IMSI to bind the account to the SIM ? Aug 11 10:43:32 I don't know if it is really unable to the the phone number programmatically (as a security related decision), or it's just me haven't found out the way to do it Aug 11 10:43:53 :) Aug 11 10:44:22 currently that's what we do, IMSI + IMEI for the SIM/account Aug 11 10:45:00 hoangtran: no, i think some of the providers dont store the number on the sim... as i say in my case its partly in hte serial number Aug 11 10:46:15 yeah, as a developer, I still want to be able to get it programmatically :D Aug 11 10:46:33 hoangtran: say the number is +4917012345678 and the serial is xx49123xxxxxx45678x Aug 11 10:47:43 in the UK mobile phone numbers are often not stored on the sim, and arent available from the IMEI etc.. Aug 11 10:48:02 hoangtran: whats about your serial can you reproduce that? Aug 11 10:49:41