Category Archives: Programming

Postphone icon

Postphone Android App 1.0 release

Android, Programming, ,

Today version 1.0 of Postphone has been released. Nerver forget to call back again!

You can find the promotional page here.

Technically speaking:

  • it has been fully developed under Ubuntu 12.04 64bit
  • it has been written entirely using vim
  • everything has been tracked by git
  • the icon has been edited using SketchUp under wine
  • main and other icons, banners and featured images has been edited with Gimp
  • beta devices were all running CyanogenMod

 

Android

How to find Android deprecated API

Android, How to, Programming, ,

The problem

When you compile android apps, sometimes you can see this message:
-compile:
[javac] Compiling 12 source files to /home/max/Projects/Android/postphone/bin/classes
[javac] Note: Some input files use or override a deprecated API.
[javac] Note: Recompile with -Xlint:deprecation for details.
Now, how is possible to find the API call which seems to be deprecated?

The solution

$ ant -Djava.compilerargs=-Xlint:deprecation debug
The above command will show you what you were searching for:
[javac] /home/max/Projects/Android/xxx/src/net/mx17/xxx/Yyy.java:212: warning: [deprecation] getNotification() in android.support.v4.app.NotificationCompat.Builder has been deprecated
[javac] Notification notif = notificationBuilder.getNotification();

Git through a proxy

Programming, , , , ,

I was connected to a LAN behind a proxy. When I tried to download something from github I got this error:
fatal: unable to connect to github.com:
github.com: Name or service not known

I’m running latest Ubuntu desktop (12.04).

One way I found to bypass this problem is to create a git proxy wrapper.

  1. Create the script i.e. ~/bin/git-wrapper.sh and configure the 2 variables according to your needs. My proxy is a local service which forwards my requests to the real LAN proxy. Local service is configured to listen on the 5865 port of my local (127.0.0.1) machine.
    #!/bin/bash
    proxy_address=127.0.0.1
    proxy_port=5865
    nc -x$proxy_address:$proxy_port -X5 $*
  2. export an environment variable
    $ export GIT_PROXY_COMMAND=~/bin/git-wrapper.sh

Then you can run your usual git commands.

iphone-gcc: compilare C/C++ su iPhone

Programming,

Finalmente torna a funzionare gcc sul mio iPhone, stavolta con firmware 3.0.
Prerequisiti

  • connessione internet da iPhone
  • iPhone jailbroken

Procedura

  1. collegarsi via ssh al telefono
  2. scaricare ed installare fake-libgcc

    root # wget http://files.getdropbox.com/u/876743/fake-libgcc_1.0_iphoneos-arm.deb
    root # dpkg -i fake-libgcc_1.0_iphoneos-arm.deb

 

  • installare com.bigboss.20toolchain e libstdc++

    root # aptitude install com.bigboss.20toolchain libstdc++

 

Esempio: Hello world!
Questa è una verifica del funzionamento:

root # cat main.c
#include “/private/var/include/stdio.h”
int main(int argc, char** argv) {
printf(“Hello World!\n”);
  return 0;
}
root # gcc -Wall -I/private/var/include/ main.c
root # ./a.out
Killed
root # ldid -S a.out
root # ./a.out
Hello World!
root #