[android-developers] Re: Advanced Touch Control: passing touch event from one view to another

[Dancing Fingers]

Why can't you just declare an Application variable and pass it back and 
forth that way?

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[android-developers] Access web service over SSL with client certificate (KSOAP)

[mbarbiero]

Dear developers...

I need to access a very secure web service that requires authentication 
with server *AND client certificates*. The big problem (to me) is *how to 
define client certificate in the SSL packet*.
I use o Ksoap but don't found documentation about SSL and certificates.

Any idea?

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Re: [android-developers] Access web service over SSL with client certificate (KSOAP)

[Renuka Deshpande]

try these

http://blog.callistaenterprise.se/2011/11/24/creating-self-signed-
certificates-for-u

se-on-android/

http://blog.callistaenterprise.se/2011/11/24/android
-tlsssl-mutual-authentication/

Thanks & Regards,
Renuka


On Sat, Apr 6, 2013 at 5:48 PM, mbarbiero  wrote:

> Dear developers...
>
> I need to access a very secure web service that requires authentication
> with server *AND client certificates*. The big problem (to me) is *how to
> define client certificate in the SSL packet*.
> I use o Ksoap but don't found documentation about SSL and certificates.
>
> Any idea?
>
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Re: [android-developers] Loading Images Using HttpURLConnection Concurrently

[Alex Fu]

If possible, I would rather not. I'm using my own server to serve up data
so for the HTTPS bit, I used a self signed certificate. Not sure if that's
something that would cause the 400 error.


On Sat, Apr 6, 2013 at 2:55 AM, Harri Smått  wrote:

> Hi,
>
> Is it possible for you to share an example of an image URL you're using?
>
> --
> H
>
> On Apr 6, 2013, at 5:59 AM, Alex Fu  wrote:
>
> > I tested HTTPS and I'm getting a 400 Bad Request error when using mobile
> data. On WiFi, everything goes through smoothly... wth.
>
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-- 
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[android-developers]regarding bluetooth auto-pairing

[akash roy]

can anyone tell me is auto pairing possible using bluetooth android i mean
to say no user interrupt is required.

*
*

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[android-developers] Strange memory consumption switching between activities

[user123]

I'm running an app in a 4.2 Nexus 7 device. It has 64 mb app memory.

I have 2 activities - and a button to toggle between them. When I start 
activity A, then B, then A, B, A, B, etc. After a while I get an out of 
memory error.

I investigated this problem with a heap dump and the memory analysis tools. 
I found that, basically, the problem is, that the main view - instances of 
these activities, are kept in memory- and instantiated again and again 
every time I start this activity!

Concretly:
 
- In activity A I have a coverflow instance, which is basically a Gallery 
with some 3d effect. 
- In activity B I have a gridview

If I switch let's say 8 times between A and B, the heap analysis shows me 
that 8 instances of coverflow, and 8 instances of gridview are in memory! 
Each occupying ~1.4 mb

BTW: I'm using images, but these are managed by universal image loader 
library, which I have used frequently now and doesn't seem to cause 
problems / leaks. Also, the bitmap - occupied space shown by the memory 
analysis is small. The big issue are these instances of coverflow and 
gridview.

I'm not retaining these instances in static variables or anything. I don't 
know why they are kept in memory.

I also added System.gc calls and method to clear the memory cache of the 
image loader library - but this doesn't help. Since the main problem seem 
to be that these instances are "retained" (although I don't know 
how/where), I understand that gc doesn't help.

So, after the users switch screens a while, they get an out of memory. How 
can I solve this? I went through many option of the memory analysis but 
didn't find anything that tells me, where/how/when these instances are 
retained.

Thanks in advance.










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[android-developers] Re: Android 4.2 introduced SELinux enabled by default on kernel. am I right?

[Martin Krischik]

4 Questions and 4 LMGTFY as answers. Classic. Thank you!

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[android-developers] Re: Zooming with Google Maps Android API v2

[VenomVendor™]

Change mMap.getUiSettings().setZoomControlsEnabled(false);
to 
mMap.getUiSettings().setZoomControlsEnabled(true);

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[android-developers] String.replaceAll with regular expression

[Ralph Bergmann | the4thFloor.eu]

Hello,


I want to replace parts of a string but get an error :-(

The code:

String reSiezedURL = "foo";

reSiezedURL = reSiezedURL.replaceAll("(?w=[0-9]+)",
String.format("?w=%d", this.reqWidth));
reSiezedURL = reSiezedURL.replaceAll("(&w=[0-9]+)",
String.format("&w=%d", this.reqWidth));
reSiezedURL = reSiezedURL.replaceAll("(?h=[0-9]+)",
String.format("?h=%d", this.reqHeight));
reSiezedURL = reSiezedURL.replaceAll("(&h=[0-9]+)",
String.format("&h=%d", this.reqHeight));

The error:

Caused by: java.util.regex.PatternSyntaxException: Invalid value for
match mode flags near index 4:
(?w=[0-9]+)
^
at java.util.regex.Pattern.compileImpl(Native Method)
java.util.regex.Pattern.compile(Pattern.java:407)
at java.util.regex.Pattern.(Pattern.java:390)
at java.util.regex.Pattern.compile(Pattern.java:381)
at java.lang.String.replaceAll(String.java:1774)

The question:

What is wrong with my regular expression?


Regards, Ralph

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[android-developers] Re: Strange memory consumption switching between activities

[RichardC]

You need to do is :
A - start B -> AB - finish B -> A - start B -> AB - finish B -> A


What you are doing (if you have explained correctly is):
A - start B -> B - start A -> ABA - start B -> ABA - start B -> ABAB etc




On Saturday, April 6, 2013 5:56:39 PM UTC+1, user123 wrote:
>
> I'm running an app in a 4.2 Nexus 7 device. It has 64 mb app memory.
>
> I have 2 activities - and a button to toggle between them. When I start 
> activity A, then B, then A, B, A, B, etc. After a while I get an out of 
> memory error.
>
> I investigated this problem with a heap dump and the memory analysis 
> tools. I found that, basically, the problem is, that the main view - 
> instances of these activities, are kept in memory- and instantiated again 
> and again every time I start this activity!
>
> Concretly:
>  
> - In activity A I have a coverflow instance, which is basically a Gallery 
> with some 3d effect. 
> - In activity B I have a gridview
>
> If I switch let's say 8 times between A and B, the heap analysis shows me 
> that 8 instances of coverflow, and 8 instances of gridview are in memory! 
> Each occupying ~1.4 mb
>
> BTW: I'm using images, but these are managed by universal image loader 
> library, which I have used frequently now and doesn't seem to cause 
> problems / leaks. Also, the bitmap - occupied space shown by the memory 
> analysis is small. The big issue are these instances of coverflow and 
> gridview.
>
> I'm not retaining these instances in static variables or anything. I don't 
> know why they are kept in memory.
>
> I also added System.gc calls and method to clear the memory cache of the 
> image loader library - but this doesn't help. Since the main problem seem 
> to be that these instances are "retained" (although I don't know 
> how/where), I understand that gc doesn't help.
>
> So, after the users switch screens a while, they get an out of memory. How 
> can I solve this? I went through many option of the memory analysis but 
> didn't find anything that tells me, where/how/when these instances are 
> retained.
>
> Thanks in advance.
>
>
>
>
>
>
>
>
>
>
>

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[android-developers] Re: Strange memory consumption switching between activities

[user123]

Ah. Right. I'm an idiot :) I have a side navigation menu and there user can 
keep tapping item A, item B, item A, item B, etc. And everything is kept in 
the navigation stack.

Now I'm calling finish on the current activity after starting a new one. 
The problem seems to be fixed. Thanks!


Am Samstag, 6. April 2013 22:48:01 UTC+2 schrieb RichardC:
>
> You need to do is :
> A - start B -> AB - finish B -> A - start B -> AB - finish B -> A
>
>
> What you are doing (if you have explained correctly is):
> A - start B -> B - start A -> ABA - start B -> ABA - start B -> ABAB etc
>
>
>
>
> On Saturday, April 6, 2013 5:56:39 PM UTC+1, user123 wrote:
>>
>> I'm running an app in a 4.2 Nexus 7 device. It has 64 mb app memory.
>>
>> I have 2 activities - and a button to toggle between them. When I start 
>> activity A, then B, then A, B, A, B, etc. After a while I get an out of 
>> memory error.
>>
>> I investigated this problem with a heap dump and the memory analysis 
>> tools. I found that, basically, the problem is, that the main view - 
>> instances of these activities, are kept in memory- and instantiated again 
>> and again every time I start this activity!
>>
>> Concretly:
>>  
>> - In activity A I have a coverflow instance, which is basically a Gallery 
>> with some 3d effect. 
>> - In activity B I have a gridview
>>
>> If I switch let's say 8 times between A and B, the heap analysis shows me 
>> that 8 instances of coverflow, and 8 instances of gridview are in memory! 
>> Each occupying ~1.4 mb
>>
>> BTW: I'm using images, but these are managed by universal image loader 
>> library, which I have used frequently now and doesn't seem to cause 
>> problems / leaks. Also, the bitmap - occupied space shown by the memory 
>> analysis is small. The big issue are these instances of coverflow and 
>> gridview.
>>
>> I'm not retaining these instances in static variables or anything. I 
>> don't know why they are kept in memory.
>>
>> I also added System.gc calls and method to clear the memory cache of the 
>> image loader library - but this doesn't help. Since the main problem seem 
>> to be that these instances are "retained" (although I don't know 
>> how/where), I understand that gc doesn't help.
>>
>> So, after the users switch screens a while, they get an out of memory. 
>> How can I solve this? I went through many option of the memory analysis but 
>> didn't find anything that tells me, where/how/when these instances are 
>> retained.
>>
>> Thanks in advance.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>

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[android-developers] Reduce line spacing

[dylanh724]

Hi, in designer, or by any means, is it possible in AppInventor to decrease 
line spacing? I have 5 textbox' in a vertical arrangement. I want them to 
have less spacing in between these textbox'. 

Any suggestions? Thanks :)

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Re: [android-developers] Re: Fire event when Andorid app goes into background.

[Piren]

I came across a similar issue myself, eventually i just counted the number 
of non-Stopped activities to know that...but a short while ago i saw this:
http://developer.android.com/reference/android/app/Activity.html#onUserLeaveHint()

i have no idea if it actually works, feel free to test that and come back 
with results for the rest of us :)

On Friday, April 5, 2013 9:27:58 PM UTC+3, disha wrote:
>
> But those will be invoked when app starts another activity,dialog or any 
> pop up window. I know there are couple of ways to do it. Like onPause() 
> check the activity stack for number of activities in it.If it has only one 
> activity, in that case we can consider app is going to background.
>
>
> On Fri, Apr 5, 2013 at 12:12 PM, RichardC 
> 
> > wrote:
>
>> You already get 2 callbacks
>> Activity.onPause()
>> Activity.onStop()
>>
>> What else do you need ?
>>
>>
>> On Friday, April 5, 2013 5:27:10 PM UTC+1, disha wrote:
>>>
>>> Hi,
>>>
>>>I want to fire an event when android app goes into background like by 
>>> pressing home key button on device. Is there any better way to do this? 
>>>
>>> Thanks
>>>
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>>  
>>
>
>

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