unable to compute hash of

The problem with API 23 and Google Play Services is still not resolved.

Just in case you get something like “unable to compute hash of /intermediates/classes-proguard/release/classes.jar” – just add a few lines to the proguard-rules.pro.

-dontwarn org.apache.http.**
-dontwarn android.net.http.AndroidHttpClient
-dontwarn com.google.android.gms.**
-dontwarn com.android.volley.toolbox.**

Stack overflow thread: http://stackoverflow.com/questions/30705589/gradle-build-failure
Star google bug: https://code.google.com/p/android-developer-preview/issues/detail?id=3001


Fresco is just awesome!



Although you may also want to read this thread: https://news.ycombinator.com/item?id=9111849


Nice Shimmer library by Facebook


original post: https://code.facebook.com/posts/636856646421011/shimmer-for-android/


– If somebody tells you they tested their website on Android, laugh evilly and show them this slidedeck

Awesome presentation!


Android Phone EditBox with validation and country flag

I haven’t found any good code snippet for Phone EditBox with nice country flags and validation. So I created my own version.

What I am talking about:

Continue reading

proguard-android.txt is missing

> java.io.FileNotFoundException: \android-sdk\sdk\tools\proguard\proguard-android.txt

Wondering where is “proguard-android.txt” in the lates ADT (rev 23)?
No worries! The universe is not collapsing. It is just a packaging bug! 🙂


Download your own local copy or proguard-android.txt

Android Arsenal

That’s quite good collection!
“A categorised directory of libraries and tools for Android”


Contribute what you have in your bookmarks!:)


Foursquare like map animation (sliding panel) with ListView

If you are wondering how to achieve map and listview behaviour like in Foursquare – this post is for you.
Here’s a short video what I’m talking about:

Continue reading

Android Activity Lifecycle

This is very old topic. Back to 2009 – some day I promised to myself to read android javadoc method by method. I didn’t:) So even now from time to time I find interesting methods in interesting places. Like onUserLeaveHint() and onUserInteraction() in Activity (API v3).

Anyway, here is an interesting picture of complete Activity Lifecycle originally posted on G+. Just found it on reddit today.

complete android fragment activity lifecycle


just in case you missed it


Android Map v2 clustering

Just a quick reference for different Android Map clustering solutions:

android clustering


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