Re: [android-developers] Which pattern is most common for apps that involve communication with servers?
Right, that's a good point I did not mention. I'm interested in knowing what percentage of apps use a framework like this rather than facilities purely within the vanilla Android framework. I can do some rough calculations in a while by grabbing a bunch of apps and running some analysis on them, Kris On Thu, Feb 19, 2015 at 3:13 PM, TreKing treking...@gmail.com wrote: On Thu, Feb 19, 2015 at 2:03 PM, Kristopher Micinski krismicin...@gmail.com wrote: I was wondering if there were any other patterns that app developers used that I hadn't thought about, Use a library like Volley or Retrofit. - TreKing - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[android-developers] Which pattern is most common for apps that involve communication with servers?
I am trying to get an idea of what most developers use to interact with web services. The two main patterns I see in apps is to either create: - Create an AsyncTask to make restful requests, and then do something with `onPostExecute`, or to - Create a service, and then have some API between the app and the service, perhaps backed by a database. I would suspect that for simple cases, the first thing would suffice, and for more advanced cases, the second might be necessary. I was wondering if there were any other patterns that app developers used that I hadn't thought about, Kris -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [android-developers] Which pattern is most common for apps that involve communication with servers?
On Thu, Feb 19, 2015 at 2:03 PM, Kristopher Micinski krismicin...@gmail.com wrote: I was wondering if there were any other patterns that app developers used that I hadn't thought about, Use a library like Volley or Retrofit. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [android-developers] Which pattern is most common for apps that involve communication with servers?
A service turned inside out A mediator class that manages a pool of threads, submits / cancels / executes task objects, manages the wake lock (based on having tasks). And a service whose only responsibility is to do startForeground / stopForeground when it's told to. All in the same process. This way I don't have to bind to a service (which is asynchronous) and it's easier to manage state in the UI, to indicate to the user what the app is doing, and to queue up tasks when necessary. -- K 2015-02-19 23:30 GMT+03:00 Kristopher Micinski krismicin...@gmail.com: Right, that's a good point I did not mention. I'm interested in knowing what percentage of apps use a framework like this rather than facilities purely within the vanilla Android framework. I can do some rough calculations in a while by grabbing a bunch of apps and running some analysis on them, Kris On Thu, Feb 19, 2015 at 3:13 PM, TreKing treking...@gmail.com wrote: On Thu, Feb 19, 2015 at 2:03 PM, Kristopher Micinski krismicin...@gmail.com wrote: I was wondering if there were any other patterns that app developers used that I hadn't thought about, Use a library like Volley or Retrofit. - TreKing - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [android-developers] Re: NullPointerException in java.io.File.fixSlashes?
Except I am not doing it... On Wed, Feb 18, 2015, 15:26 Sérgio Faria sergio9...@gmail.com wrote: Given the stack above, it seems you're doing new File(null) https://android.googlesource.com/platform/libcore/+/ android-2.3.4_r1/luni/src/main/java/java/io/File.java 2015-02-18 11:45 GMT+00:00 Fran fmmar...@gmail.com: It seems this problem persists more than three years after. I am experiencing the same problem right now, all of them with Android 2.3.4 On Sunday, June 5, 2011 at 4:21:31 PM UTC+2, Derek wrote: Hi all, We get crash reports with the following error: java.lang.NullPointerException at java.io.File.fixSlashes(File.java:234) It appears on File file = new File(path/subfolder); on some devices only. We cannot reproduce it. Where could this problem from from? Cheers. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to a topic in the Google Groups Android Developers group. To unsubscribe from this topic, visit https://groups.google.com/d/ topic/android-developers/b3XY_KvU7g4/unsubscribe. To unsubscribe from this group and all its topics, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[android-developers] Re: Google Maps API Android - NullPointerException - setBoundsInParent
Hello. The bug has been confirmed by Google : https://code.google.com/p/gmaps-api-issues/issues/detail?id=7619 Best regards. Le vendredi 6 février 2015 09:54:50 UTC+1, ps-geolives a écrit : Hello. In our Android mobile application (compatible with Android versions 4.0 and upper), we use Google Maps API V2. We get some bug reports from users on some kinds of devices (Android versions 4.3, 4.4 and 5.0) with a NullPointerException in setBoundsInParent method of android.view.accessibility.AccessibilityNodeInfo class. The application crashes when the user tries to move or to zoom on the map. The problem only appears for some users - devices. Most of our customers do not have that problem. We cannot reproduce this problem on our development devices, so it's difficult for us to find the origin of this problem. You will find the full stacktraces of the bug below. Does someone have an idea? Thanks a lot in advance for your answer. Best regards. *Stacktrace on Android 4.3 - 4.4* java.lang.NullPointerException at android.view.accessibility.AccessibilityNodeInfo.setBoundsInParent( AccessibilityNodeInfo.java:1012) at android.support.v4.view.a.k.c(SourceFile:819) at android.support.v4.view.a.i.b(SourceFile:1850) at com.google.maps.api.android.lib6.c.et.a(Unknown Source) at android.support.v4.widget.ab.a(SourceFile:56) at android.support.v4.widget.ac.a(SourceFile:717) at android.support.v4.view.a.x.a(SourceFile:112) at android.support.v4.view.a.ad.createAccessibilityNodeInfo(SourceFile:42) at android.view. AccessibilityInteractionController$AccessibilityNodePrefetcher. prefetchAccessibilityNodeInfos(AccessibilityInteractionController.java:724 ) at android.view.AccessibilityInteractionController. findAccessibilityNodeInfoByAccessibilityIdUiThread( AccessibilityInteractionController.java:147) at android.view.AccessibilityInteractionController.access$300( AccessibilityInteractionController.java:49) at android.view.AccessibilityInteractionController$PrivateHandler. handleMessage(AccessibilityInteractionController.java:971) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5212) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit. java:786) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602) at dalvik.system.NativeStart.main(Native Method) *Stacktrace on Android 5.0* java.lang.NullPointerException: Attempt to read from field 'int android.graphics.Rect.left' on a null object reference at android.view.accessibility.AccessibilityNodeInfo.setBoundsInParent( AccessibilityNodeInfo.java:1316) at android.support.v4.view.a.k.c(SourceFile:819) at android.support.v4.view.a.i.b(SourceFile:1850) at com.google.maps.api.android.lib6.c.et.a(Unknown Source) at android.support.v4.widget.ab.a(SourceFile:56) at android.support.v4.widget.ac.a(SourceFile:717) at android.support.v4.view.a.x.a(SourceFile:112) at android.support.v4.view.a.ad.createAccessibilityNodeInfo(SourceFile:42) at android.view. AccessibilityInteractionController$AccessibilityNodePrefetcher. prefetchAccessibilityNodeInfos(AccessibilityInteractionController.java:894 ) at android.view.AccessibilityInteractionController. findAccessibilityNodeInfoByAccessibilityIdUiThread( AccessibilityInteractionController.java:155) at android.view.AccessibilityInteractionController.access$400( AccessibilityInteractionController.java:53) at android.view.AccessibilityInteractionController$PrivateHandler. handleMessage(AccessibilityInteractionController.java:1236) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5221) at java.lang ... -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [android-developers] Re: NullPointerException in java.io.File.fixSlashes?
Well, either the stack trace is wrong or the source is not the one I linked
to (android-2.3.4_r1) or you're doing new File((String) null)
Let's see:
3 at java.io.File.init(File.java:139)
138. public File(String path) {
139. init(path);
2 at java.io.File.init(File.java:189)
186. private void init(String dirtyPath) {
187. // Cache the path and the absolute path.
188. // We can't call isAbsolute() here (http://b/2486943).
189. String cleanPath = fixSlashes(dirtyPath);
1 at java.io.File.fixSlashes(File.java:205)
202. private String fixSlashes(String origPath) {
203. // Remove duplicate adjacent slashes.
204. boolean lastWasSlash = false;
205. char[] newPath = origPath.toCharArray();
On Thursday, February 19, 2015 at 9:59:30 AM UTC, Fran wrote:
Except I am not doing it...
On Wed, Feb 18, 2015, 15:26 Sérgio Faria sergi...@gmail.com javascript:
wrote:
Given the stack above, it seems you're doing new File(null)
https://android.googlesource.com/platform/libcore/+/
android-2.3.4_r1/luni/src/main/java/java/io/File.java
2015-02-18 11:45 GMT+00:00 Fran fmma...@gmail.com javascript::
It seems this problem persists more than three years after. I am
experiencing the same problem right now, all of them with Android 2.3.4
On Sunday, June 5, 2011 at 4:21:31 PM UTC+2, Derek wrote:
Hi all,
We get crash reports with the following error:
java.lang.NullPointerException
at java.io.File.fixSlashes(File.java:234)
It appears on File file = new File(path/subfolder);
on some devices only.
We cannot reproduce it. Where could this problem from from?
Cheers.
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Re: [android-developers] Re: NullPointerException in java.io.File.fixSlashes?
My app has about 20,000 boots a day, and every single crash like this one
is reported to be occurring exclusively with such 2.3.4 Android version.
Every single one, in spite such version represent less than 5% of the
devices were my app is installed. No other Android version is affected at
all. Thus the causal variable is clearly isolated and identified and it is
not within my code.
I am not sure if those users are using specifically that 2.3.4_r1 code
neither, but it doesn't matter anyway and investigating it further is
pointless since I cannot change the user's underlying OS version.
I will have to live with it, I guess. I googled such problem, find this
thread, and just wanted to point out that this bug is still around.
Bests,
On Thu, Feb 19, 2015, 13:00 Sérgio Faria sergio9...@gmail.com wrote:
Well, either the stack trace is wrong or the source is not the one I
linked to (android-2.3.4_r1) or you're doing new File((String) null)
Let's see:
3 at java.io.File.init(File.java:139)
138. public File(String path) {
139. init(path);
2 at java.io.File.init(File.java:189)
186. private void init(String dirtyPath) {
187. // Cache the path and the absolute path.
188. // We can't call isAbsolute() here (http://b/2486943).
189. String cleanPath = fixSlashes(dirtyPath);
1 at java.io.File.fixSlashes(File.java:205)
202. private String fixSlashes(String origPath) {
203. // Remove duplicate adjacent slashes.
204. boolean lastWasSlash = false;
205. char[] newPath = origPath.toCharArray();
On Thursday, February 19, 2015 at 9:59:30 AM UTC, Fran wrote:
Except I am not doing it...
On Wed, Feb 18, 2015, 15:26 Sérgio Faria sergi...@gmail.com wrote:
Given the stack above, it seems you're doing new File(null)
https://android.googlesource.com/platform/libcore/+/android-
2.3.4_r1/luni/src/main/java/java/io/File.java
2015-02-18 11:45 GMT+00:00 Fran fmma...@gmail.com:
It seems this problem persists more than three years after. I am
experiencing the same problem right now, all of them with Android 2.3.4
On Sunday, June 5, 2011 at 4:21:31 PM UTC+2, Derek wrote:
Hi all,
We get crash reports with the following error:
java.lang.NullPointerException
at java.io.File.fixSlashes(File.java:234)
It appears on File file = new File(path/subfolder);
on some devices only.
We cannot reproduce it. Where could this problem from from?
Cheers.
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Re: [android-developers] INSTALL_FAILED_DUPLICATE_PERMISSION
Hi! I'm not sure how to help, because've only met this problem when there are several users set on a device. If I install my app directly from Eclipse with my debug certificates, then uninstall the app and try to install a production copy, made with the release certificate, I've got the same error message INSTALL_FAILED_DUPLICATE_PERMISSION. Until I uninstall the app in every user by hand, I can't install the new one. At least in your case the error message makes sense :) When I was trying to understand that error message, I've read that it affected permissions with android:protectionLevel declared as signature. Are you using that? Can you change it to normal without affecting your business model? Marina On Wed, Feb 18, 2015 at 11:58 AM, Marten Gajda mar...@dmfs.org wrote: Hi all, we've some problems with Android 5. There seems to be a new policy that requires two apps that define the same permissions to be signed by the same key. Otherwise you can't install the app getting the error INSTALL_FAILED_DUPLICATE_PERMISSION. This is very annoying and I'd like to know that the suggested solution/workaround to this is. We have an Open Source task app that provides access to the tasks via a ContentProvider. The concept pretty much equals the CalendarProvider. We also have a (not yet Open Source) sync app that can sync to this task app (or its ContentProvider). The problem is that (in contrast to the CalendarProvider) our users usually install the sync app first. That means the permissions of the task app are not known when the sync app is installed. So they are not granted automatically when the task app is installed afterwards. Until Android 5 the solution was to define the same permissions in the sync app. But that doesn't work any more in some cases. If the user compiles the task app himself he can not use our sync app at the same time, because they are not signed by the same key. How can we achieve that we protect access to the task ContentProvider by permissions still allowing them to use a self compiled version? Even if both apps are signed by the same key it doesn't seem to work in some cases (does Android 5 also require both apps to be from the same source?) A similar issue exists when another developer tries to build a sync app that can sync to our task app. He can not add the same permissions, because he can't use the same signing key. But if he can't add the same permission definition his app won't get the permission if it's installed before the task app is installed. What's the solution of this mess? thanks Marten -- Marten Gajda Schandauer Straße 34 01309 Dresden Germany tel: +49 177 4427167 email: mar...@dmfs.org twitter: twitter.com/dmfs_org VAT Reg. No.: DE269072391 -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[android-developers] VoiceInteractionService - Is there Voice Interaction support in Lollipop (21) SDK?
Hi, I have noticed that in Android Lollipop (API Level 21) there's a VoiceInteractionService class (http://developer.android.com/reference/android/service/voice/VoiceInteractionService.html) which apparently allows an app to setup Hotword Detectors which fire a callback when a certain hotword is recognized by the VR module. Although the class is available in the SDK I don't see any guide or detailed documentation on how to use it. Digging in the AOSP code I found out that there's a system service for VR but this service is not available for arbitrary apps, just system or platform signed apps. I guess this service is used by Google Services for servicing Google Now's voice activation (a.k.a OK Google). If so, I can't understand why this service is available in the SDK. Can someone from Google provide some information about this? Is there a way to add Voice Interaction the apps now or in the future? Also, if someone knows about an alternative Voice Interaction package that may be used I would be glad to hear about it. Micha -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [android-developers] Which pattern is most common for apps that involve communication with servers?
I agree, that sounds like a useful pattern. I *think* that's relatively close to how Volley is implemented (though I haven't read the implementation fully), too. Do you have any pointers to open sourced code that would provide an example of such a behavior? If not, no big deal: I can certainly write one myself, and am not asking you to open-source code from your codebase. Kris On Thu, Feb 19, 2015 at 4:17 PM, Kostya Vasilyev kmans...@gmail.com wrote: A service turned inside out A mediator class that manages a pool of threads, submits / cancels / executes task objects, manages the wake lock (based on having tasks). And a service whose only responsibility is to do startForeground / stopForeground when it's told to. All in the same process. This way I don't have to bind to a service (which is asynchronous) and it's easier to manage state in the UI, to indicate to the user what the app is doing, and to queue up tasks when necessary. -- K 2015-02-19 23:30 GMT+03:00 Kristopher Micinski krismicin...@gmail.com: Right, that's a good point I did not mention. I'm interested in knowing what percentage of apps use a framework like this rather than facilities purely within the vanilla Android framework. I can do some rough calculations in a while by grabbing a bunch of apps and running some analysis on them, Kris On Thu, Feb 19, 2015 at 3:13 PM, TreKing treking...@gmail.com wrote: On Thu, Feb 19, 2015 at 2:03 PM, Kristopher Micinski krismicin...@gmail.com wrote: I was wondering if there were any other patterns that app developers used that I hadn't thought about, Use a library like Volley or Retrofit. - TreKing - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
