Android 4.2 for Nexus 7 rolled out...

Today i was notified with this little icon:

Two week ago i already wrote a posting about the new features of Android 4.2 and not only new devices got this version. Here some screenshots of the update:

And here we go:

Android-App Development: commandline tools of the android-sdk

After setting up the development environment for Android apps, i was curious about the downloaded android sdk. So what about just trying to look into this "android-sdk" directory:
It contains the following directories (only first two levels listed:

.
├── add-ons
├── platforms
│   └── android-16
├── platform-tools
│   ├── aapt
│   ├── adb
│   ├── aidl
│   ├── api
│   ├── dexdump
│   ├── dx
│   ├── fastboot
│   ├── lib
│   ├── llvm-rs-cc
│   ├── NOTICE.txt
│   ├── renderscript
│   └── source.properties
├── temp
└── tools
    ├── adb_has_moved.txt
    ├── android
    ├── ant
    ├── apkbuilder
    ├── apps
    ├── ddms
    ├── dmtracedump
    ├── draw9patch
    ├── emulator
    ├── emulator-arm
    ├── emulator-x86
    ├── etc1tool
    ├── hierarchyviewer
    ├── hprof-conv
    ├── lib
    ├── lint
    ├── mksdcard
    ├── monitor
    ├── monkeyrunner
    ├── NOTICE.txt
    ├── proguard
    ├── source.properties
    ├── sqlite3
    ├── support
    ├── systrace
    ├── templates
    ├── traceview
    └── zipalign

The first command i tried was:

schroff@hades:$ ./apkbuilder


<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
THIS TOOL IS DEPRECATED and may stop working at any time!

If you wish to use apkbuilder for a custom build system, please look at the
com.android.sdklib.build.ApkBuilder which provides support for
recent build improvements including library projects.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>


A command line tool to package an Android application from various sources.
Usage: apkbuilder <out archive> [-v][-u][-storetype STORE_TYPE] [-z inputzip]
            [-f inputfile] [-rf input-folder] [-rj -input-path]

    -v      Verbose.
    -d      Debug Mode: Includes debug files in the APK file.
    -u      Creates an unsigned package.
    -storetype Forces the KeyStore type. If ommited the default is used.

    -z      Followed by the path to a zip archive.
            Adds the content of the application package.

    -f      Followed by the path to a file.
            Adds the file to the application package.

    -rf     Followed by the path to a source folder.
            Adds the java resources found in that folder to the application
            package, while keeping their path relative to the source folder.

    -rj     Followed by the path to a jar file or a folder containing
            jar files.
            Adds the java resources found in the jar file(s) to the application
            package.

    -nf     Followed by the root folder containing native libraries to
            include in the application package.

Hmm. Does not really look as i expected.
DDMS opened the following window named Davlik Debug Monitor:

The command hierarchyviewer launched this window:

Last try: monitor came up with:

But i think, i have to follow the tutorial to see, how all these things work together. At least all commands work (no seg faults)...

Android: Building an App? Getting your Developer tools first!

After buying a Nexus 7 one month ago and looking for a good navigaion app, the next step should be building my first own app for this Android device. There is a nice starting point given by developer.android.com.

Downloading the Android SDK shows the following:

Eclipse can be found via this link. I downloaded Eclipse Classic 4.2.1 (eclipse-SDK-4.2.1-linux-gtk.tar.gz).
A tutorial for configuring eclipse is provided here. Here a walkthrough the screens:

After a while i got:

That did not look good, but let's ignore this kind of error...
Then the installation finished and eclipse needed to be restarted. Now i wanted to follow the tutorial about installing the Android SDK, but eclipse came up with the following question:

So this was easier than the steps described at developer.android.com...
Then a last restart to eclipse and there it was: New Project -> Other:

So everything is in place now. Next step is to build my first app for the Nexus 7...

Nexus 7: Connecting via USB to Debian Linux

Today i tried to connect my Nexus 7 tablet with my debian laptop. First i just plugged the usb cable in and /var/log/messages showed the following line:

Nov  2 22:03:02 hades kernel: usb 1-1: new high speed USB device using ehci_hcd and address 2

But the tablet showed up the following:

Bringing down the android menu this showed:

Tapping on the usb entry i was able to choose the following options:

Not bad, but on my laptop no partition being found... After some searches via Google i know, that i have to install two more packages:

hades:/home/schroff# apt-get install mtp-tools mtpfs
Paketlisten werden gelesen... Fertig
Abhängigkeitsbaum wird aufgebaut      
Statusinformationen werden eingelesen... Fertig
Die folgenden zusätzlichen Pakete werden installiert:
  libmtp8
Die folgenden NEUEN Pakete werden installiert:
  mtp-tools mtpfs
Die folgenden Pakete werden aktualisiert (Upgrade):
(Lese Datenbank ... 229320 Dateien und Verzeichnisse sind derzeit installiert.)
Vorbereitung zum Ersetzen von libmtp8 1.0.3-1+squeeze1 (durch .../libmtp8_1.0.3-1+squeeze2_i386.deb) ...
Ersatz für libmtp8 wird entpackt ...
Vormals abgewähltes Paket mtp-tools wird gewählt.
Entpacken von mtp-tools (aus .../mtp-tools_1.0.3-1+squeeze2_i386.deb) ...
Vormals abgewähltes Paket mtpfs wird gewählt.
Entpacken von mtpfs (aus .../archives/mtpfs_0.9-3_i386.deb) ...
Trigger für hal werden verarbeitet ...
Regenerating hal fdi cache ...
Restarting Hardware abstraction layer: hald.
Trigger für man-db werden verarbeitet ...
libmtp8 (1.0.3-1+squeeze2) wird eingerichtet ...
mtp-tools (1.0.3-1+squeeze2) wird eingerichtet ...
mtpfs (0.9-3) wird eingerichtet ...

Then i followed this tutorial: http://blog.jsntng.me/2012/08/mounting-nexus-7-on-ubuntu-1204.html
After all the steps described there, it does not really work, but after one time reconnecting the tablet, i was able to see the playlists:

hades:~# ls /media/nexus7
Playlists

On Windows it should work out of the box and for MAC you can find software on www.android.com/filetransfer: