Sonntag, 19. Oktober 2014

How to get an invite for the One Plus One

Hey guys.

I just wanted to share a very quick and easy way how to get an invite for the OnePlusOne or OPO. A few weeks ago I thought I would buy the new Nexus Smartphone, but it is too expensive for me ;)

one plus one invite
You will get your invite in the one plus one forum

How to get a OnePlusOne invite in 10 minutes

1. Go to and create an account. You need this anyway to buy one. 
2. Check out the forum. There are several subforums where invites are shared. Do not post an invite request!
3. Press refresh and when a new invite is posted, write a message to this person. 
4. If you are too late for this invite, repeat step 3 :)

I successfully got my invite in less then 10 minutes. Hope this helps! 
German invites are shared at this subforum:

Dienstag, 23. September 2014

Phone Drop Scream App

phone drop scream
Phone Drop Scream for android
Hello Users!

I was inspired by xkcd to create an android app that makes your phone scream when falling or dropping.
After one night of creating a prototype I am now ready to release this cool app for you!

android scream falling
Drop Scream App for android


  • Free for use!
  • Detects when you drop your phone and fires a customizable sound
  • Customizable sensor sensitivity threshold
  • Widget with drop counter
  • Wilhelm Scream
  • Shattering Glas
  • Burp
  • Fart
  • Explosion
  • Nooooo
  • Funny Sheep

phone drop scream
Phone Drop Scream App

The app is only 1.5 mb in size and can be downloaded at the google play store for free!

Used permissions:
This app uses a few permission, but does not collect any personal data or uses aggresive ads.
Inside the app is a small adbanner.
ACCESS_NETWORK_STATE and INTERNET permissions are used to load ads.
BILLING is used if you plan to remove ads from this app.
RECEIVE_BOOT_COMPLETE is used to init the service when your phone has rebooted
VIBRATE is currently not used :)

phone scream sounds
Phone Drop Scream Sounds

Mittwoch, 17. September 2014

Doppel Update für Fefes Newsreader

Falls euer Android Gerät heute kurz nacheinander zwei updates für Fefes Newsreader installiert hat, wundert euch nicht. Ein kleiner Bug hat sich durchgeschummelt und ist erst nach dem release aufgefallen ;)
Zudem gibt es nun hier eine Sammlung aller Fefe Newsreader relevanten Postings.
fefe rss widget
Das neue Android RSS Widget für Fefes Blog

Dienstag, 9. September 2014

Ein Widget für Fefe Newsreader für Android

Update für Fefes Newsreader

Die neue Version ist zwar noch nicht im Play Store, weil ich sie noch etwas testen muss, aber heute oder morgen ist es soweit.Es gibt zwei neue Funktionen für Fefes Newsreader.
Zum einen ist es nun einfacher zwischen App und Browser zu wechseln. Klickt ihr auf einen Link, öffnet dadurch den Browser und geht danach wieder zur Fefe Newsreader App, so bleibt die Newsliste bei der aktuellen Position stehen an der ihr gleich weiter lesen könnt.

Ein RSS Widget

Eine neue Funktionalität ist das neue Widget für den Newsreader. Mit diesem habt ihr die neusten News von Fefe auf einem Smartphone, ohne die App öffnen zu müssen. Das Widget zeigt euch genau wie die App die letzten Einträge an. Diese könnt ihr scrollen und durch klick auf einen Beitrag diesen direkt in der App öffnen!
fefe newsreader widget
Widget für Fefes Newsreader

Ein Widget unter android hinzuzufügen ist nicht schwer. Dieses Video verdeutlicht euch, wie das geht. Je nach Android Version sieht das Interface allerdings etwas anders aus. Das Video stammt von meiner App Battery Temperature Guard, welche ebenfalls kostenlos im Play Store verfügbar ist.

Freitag, 29. August 2014

Some uplifting reviews for my apps

So from time to time I login to the play store to read some reviews about my apps Battery Temperature Guard or my Baby Names App. It is fun to read the reviews and get some good feedback. I even get new ideas for features sometimes.

I just wanted to share some reviews which where really uplifting.

Best battery monitor I have tested many battery temp monitor apps but this is the best. The graphs are great and the alerts that are based on a certain temp that you specify will even alert you if your device has been silenced (if you choose). The developer is super response and a pleasure to work with if necessary. Just a great app for what it was intended to do.

A must have By phone gamers like me.... Plays a alarm ( or vibrates ) when your specified overtemp is reached. Now i know when to let it cool down (or not if i want to finish game and use more battery quickly). Very low memory usage too. Can even watch battery cool down in "live view". 

Just what I needed! Simple, low on resourses, showing battery temperature in status bar! Great! 

 La recomiendo.100% Buenísima app. de temp. del cel. Tu escojés los parametros de temp. Tiene alarma muy bueno para avisar , y mucho mas. Si le das mucha flama al cel. Esta es tu mejor opción . Lo mejor , "es gratis". Muchas gracias por tan excelente app.

5 Sterne - absolut verdient, denn jetzt gefällt mir die App zu 100% ! Und wenn Wünsche und Anregungen ernst genommen und umgesetzt werden, lässt man sich noch leichter zu einer positiven Bewertung hinreißen. Echt super ! 

Ez rohadt jó! GRAT! Hogy eddig ez senkinek nem jutott eszébe, és látszik hogy a fejlesztő tényleg hasznos alkalmazást akart csinálni, nincs hozzáférése az app nek pl mikrofon galéria fiókok stb mint a többi gyanús gagyi szarnak. Inkább ki adok érte pénzt de lássam hogy a fejlesztő korrekt és foglalkozik az általa ki adott termékkel épp úgy mint itt! Thanks! 

Does what it says on tin Great app, works with all my devices, helps it keep cool when the devices get hot, also love the high and low temp history reading! Everyone download this app now!!! :) 

Donnerstag, 28. August 2014

Android Name meaning & babynames app

While I am working on an update for Battery Temperature Guard I created an update for my android name meaning app. The app has now a new cool feature. I also created a new android app promotion video for this app. I also fixed some layout bugs on tablet devices.

You can now filter the names by name origin! The promotion video will explain you how you can use this cool feature.

Names can be filtered by name origin:
  • asian
  • arabic
  • catholic
  • hebrew
  • germanic
  • persian
  • scandinavic
  • and greek

android name meaning
Android baby names app

Donnerstag, 14. August 2014

How to create an android promotion video of your app

If you want to market your android app you have to create a cool promotion video for your app. You can link this video in the play store entry. This way more users will be attracted to your app. Creating such a promotion video is quite easy. All you need to have is some time and a few tools I will introduce to you.
I am not a professional promotion video creator, but I have already created a few videos for my app. Here is a small promotion video for my app Battery Temperature Guard for android. And this is a video for the temperature widget of the same app.

Screencast your android app

The first step is to create some screencasts of your android app. This means you have to film what is happening on your screen. The best free tool to do this is SCR Screen Recorder Free. It is a great tool to simply create videos of your app. Check this article how to use SCR and gain root on your device. On the screenshot below you can see the SCR widget. By clicking the orange button, it will disappear and create a video of your screen.
scr in action
The SCR widget is ready

Create your android promotion video

Now you have a bunch of videos you want to merge to a cool promotion video. I would recommend you to use the Microsoft Movie Maker. It is a simple tool to create/cut/annotate videos and images.
To use your screencast video inside the Movie Maker, you have to convert it using Free Video Converter. This tool is free. Add your video to the list and set the settings according to my screenshot below. Hit "convert" to convert the videos and wait a little bit.

converting to movie maker
Converting the screencast videos

Now start the Movie Maker and drop the converted video into the app. It will take some time for Movie Maker to read the video. Here you can see a screenshot of me creating a video on how to configure the widget textsize of my app battery temperature guard.

movie maker android promotion video
Loading the promotion video

You will notice, that the video is rotated and not as you want it to be. To change the rotation of the current selected video, tap on the small icon I have marked on this screenshot.
movie maker rotate video
Fixing the rotated video is simple

Customize your promotion video

Now you can start to edit your video. Add some text annotations, cut the video, slow some parts down, add some music and many many more. When you are done, you can export the video. I prefer full hd quality :)
movie maker export
Exporting the Android Promotion Video

Upload your android promotion video to youtube and add some cool music

Cool music will make your video appear cooler. Inside youtube you can add free music to your video. Click through some songs to find something smooth for your promotion video.

After you uploaded and modified the video, you can add it to your blog like this:

Sonntag, 10. August 2014

All Videos for Battery Temperature Guard for Android

If you have problems with your android device getting too hot, checkout these videos for Battery Temperature Guard for android. The latest update version 2.6 features some new improvements in the with better structured preferences. You can also see some pictures of an exploded iphone battery :)

Donnerstag, 10. Juli 2014

Using towelroot to get root on nexus 5

Towelroot is awesome, let me tell you why

I wanted to create a few videos for my latest Costa Rica Live Wallpaper App. To make a video of a running app you have two options:

  • adb
  • screencast app

You can use adb to create a video of your device. It will be limited to 3 minutes and you need to have your device connected to your computer.

$>adb.exe shell screenrecord --verbose /sdcard/video.mp4

Using an android screen capture app 

Another option is to use a tool like ScreenCast Video Recorder. The app is easy to use. But the free version is limited to 30 second videos.
android screen capture
scr is ready to take a
screen capture video

SCR Free is another android screencapture app. It is free and has no limitations. The only thing you need to be is root! The app is quite easy to use. After you opened it, you will see the small app with three buttons. You can drag this little app everywhere on your screen. To create a video tap the orange button.
To stop the recording, you need to turn of your screen and wait 2 seconds.

Getting root without reboot in less then a minte

Using towelroot, you can quickly get root for your device. No reboot needed. This is really awesome. You can download towelroot here. Install the .apk file and open it. You will see a screen like this:

root without reboot
towelroot is ready
Do this on your own risk!
To root your device, click on the button "make it rain". Wait a few seconds, and if you are lucky, you are root now:

android rooted
towelroot is finished

Donnerstag, 22. Mai 2014

Baby Namen und Bedeutung für Android

baby names android
Mit Baby Names findest du
schnell den Namen für dein Kind
Heute ist es wieder Zeit für eine neue kleine App von mir.

Baby Namen!

Mit dieser App kannst du die Bedeutung von über 6000 Namen nachschlagen und dir vom Eulenorakel den passenden Namen für deinen Kinder vorschlagen lassen.

Das Eulenorakel

Du kannst das magische Eulenorakel nach dem besten Namen für deine Kinder befragen. Dafür musst du dir deinen Namen und den deines Partners eintragen und nach einer kurzen Bedenkzeit hat die magische Eule die passenden Namen errechnet.
baby names
Das magische Eulenorakel


Diese App beinhaltet Daten zu über 6000 Namen und deren Bedeutung. Du kannst dir die Bedeutungen vorlesen lassen, sie als favoriten setzen oder mit Freunden teilen.
namen bedeutung
Die Namensdatenbank

baby namen android
Das App Menü

baby namen android

Samstag, 17. Mai 2014

Finding a babyname

baby names android
With baby names for android you
can quickly find the right name for your baby
It is time to introduce a new app I have just released.

Baby Names!

This app features more then 800 english names and detailed descriptions.

The magic Owls Oracle will help you to find the right name for your baby.

The Owls Oracle

You can ask the magic owls oracle for the right name for your baby. All you have to do is enter your name and the name of your girlfriend or boyfriend. The owl will calculate a magic algorithm to get the right names.
android baby names
The magic owls oracle

The Name meaning

You can search the whole database containing more then 800 names and detailed descriptions. Did you ever know where your name is from?
You can also set names as favorites and even let the app read the names description!

android name meaning
The name meaning database

name meaning android
The app menu
baby names
Baby names meanings for android

Donnerstag, 24. April 2014

Überarbeitete Version von Fefes Newsreader für Android

 Android Newsreader für Fefes Blog 1.4

fefe newsreader hell
Fefe Newsreader im hellen Design
Wie in meinem letzten Post angekündigt, habe ich die Newsreader App für Fefes Blog überarbeitet.
Die Liste der Neuerungen ist recht lang, deshalb erst zum wichtigsten Punkt.
Es gibt eine neue Permission:

Keine Sorge, diese App wird euch nichts kosten und auch werbefrei bleiben. Ihr könnt allerdings wenn ihr mich unterstützen wollt eine kleine Spende mittels In-App-Billing an mich ausrichten. 

Ihr habt die App noch gar nicht installiert? Dann schnell in den Google Play Store und installiert den Fefe Newsreader gratis!

Das Lesen der Beiträge funktioniert nun ohne Popup

Sobald ihr auf einen Beitrag geklickt habt, vergrössert sich das Element und der ganze Beitrag ist sichtbar. Zudem könnt ihr jetzt direkt verlinkte Quellen öffnen ohne zuerst auf Fefes Blog surfen zu müssen.

fefe newsreader
Die "normale" Ansicht
fefe newsreader android
Ein Beitrag ist ausgewählt,
Links sind anklickbar

Helles / Dunkles Theme

Da einige Nutzer danach gefragt haben, ist diese App nun in hellem und dunklem Theme verfügbar. Das Standardtheme für die App ist immer noch das dunkle Theme. Wenn ihr die App allerdings lieber hell haben wollt könnt ihr dies in den Einstellungen ändern. Die App startet sich danach im ausgewählten Theme neu.

fefe newsreader theme
Das Theme ist jetzt umschaltbar


Falls ihr Lust habt könnt ihr mich mit einer kleinen Spende unterstützen und so motivieren diese App stetig zu verbessern.

android will code for food
Unterstützt einen Hobby Programmierer

Der Vollständigkeit halber hier der aktuelle Changelog:

  • Trotz in-app Käufe ist und bleibt diese App komplett kostenlos und werbefrei!
  • Das Lesen der Beiträge funktioniert nun ohne Popup.
  • Sobald ihr auf einen Beitrag geklickt habt, werden die links direkt sichtbar und anklickbar
  • In den Einstellungen könnt ihr zwischen Hellem und Dunklen Theme wechseln
  • Die Benachrichtigung könnt ihr nun auf einem Android Gerät ab API 11 durch herunterziehen vergrössern um die ganzen News zu lesen
  • Per In App Käufe könnt ihr mich mit einer Spende unterstützen

Mittwoch, 16. April 2014

Kurzer Ausfall des Fefe Newsreader

fefe newsreader
Android Newsreader für
Fefes Blog
Meine Newsreader App für Fefes Blog hatte heute einen kleinen Aussetzer. Aufgrund eines fehlerhaften XML verabschiedete sich die App bei jedem Update :)

Das gute an der Sache ist. Entweder hat Fefe sein XML gefixt oder das XML hat sich selbst gefixt :) Die App läuft wieder und benachrichtigt euch wenn Fefe etwas tolles postet.

Ich hab noch eine kleine Todo Liste an Features, die ich noch implementieren müsste. Es gibt auch einige kleine Bugs.
Sobald ich Zeit finde werde ich die App etwas überarbeiten und noch besser machen.

Montag, 6. Januar 2014

Free Bitcoin Charts App

bitcoin charts android
Bitcoin Buddy

Bitcoin Buddy is a new free Bitcoin App for Android

Using this app you are able to monitor bitcoin prices in almost every currency and on almost all available markets.
  • View Markets Statistics
  • View Latest Trades Statistics
  • 27 Currencies & 74 Markets available
  • Get notification if bitcoin prices changes
  • Pinch & Zoom diagrams

Although I have put a lot of work into this app, I cannot guarantee the correctness of the data. Please keep in mind that bitcoin prices may change very quickly.


On these Views you can follow the latest Trades and Markets statistics.
You can select your currency and market at the bottom of the diagram.
The data is at least 15 minutes old.

android bitcoin app
Bitcoin Trades Charts
bitcoin charts app
Bitcoin Markets Charts

Monitor Markets

You can configure this app to notify you whenever the bitcoin prices are changing.
Click on the upper right preferences-Button.
In the preferences you can select as many bitcoin markets as you want. The app will check these markets every 20 minutes.
bitcoin buddy
Monitor bitcoin prices

bitcoin buddy android
Bitcoin Buddy Notification

The Bitcoin Buddy Icon

android bitcoin buddy
The Bitcoin Buddy Logo

The App Icon is a mix of the bitcoin icon and the android icon.
The Android robot is reproduced or modified from work created and shared by Google and used according to terms described in the Creative Commons 3.0 Attribution License.

All Bitcoin statistics data is provided by the awesome API.

This App contains ads

If you don't like these ads, you can buy the premium addon. Open the App Menu, choose the Contact Tab and click on Buy premium.
If you have any problems with this app, feel free to contact me.

Freitag, 3. Januar 2014

Android graphview Library and Proguard

android graphview

If you are using GraphView inside your Android apps, make sure to exclude it from being obfuscated by your proguard config.
I recently changed my app Battery Temperature Guard. I do not use AndroidPlot anymore as a diagram. Instead I use Graphview. Its a cool library to quickly build scaleable and scrollable diagrams.

Everything worked great, but after I released my apps I noticed that scaling by pinch & zoom did not work anymore.
Logcat showed the logs below. By adding this simple line to my proguard.cfg I managed to exclude the graphview classes and packages from being obfuscated by proguard.

-keep class com.jjoe64.graphview.** { *; }

01-03 18:16:17.015    7626-7626/? W/System.err﹕ at android.view.Choreographer$
01-03 18:16:17.015    7626-7626/? W/System.err﹕ at android.view.Choreographer.doCallbacks(
01-03 18:16:17.015    7626-7626/? W/System.err﹕ at android.view.Choreographer.doFrame(
01-03 18:16:17.015    7626-7626/? W/System.err﹕ at android.view.Choreographer$
01-03 18:16:17.015    7626-7626/? W/System.err﹕ at android.os.Handler.handleCallback(
01-03 18:16:17.015    7626-7626/? W/System.err﹕ at android.os.Handler.dispatchMessage(
01-03 18:16:17.015    7626-7626/? W/System.err﹕ at android.os.Looper.loop(
01-03 18:16:17.015    7626-7626/? W/System.err﹕ at
01-03 18:16:17.015    7626-7626/? W/System.err﹕ at java.lang.reflect.Method.invoke(Native Method)
01-03 18:16:17.015    7626-7626/? W/System.err﹕ at$
01-03 18:16:17.015    7626-7626/? W/System.err﹕ at
01-03 18:16:17.025    7626-7626/? W/System.err﹕ java.lang.NullPointerException: null receiver
01-03 18:16:17.025    7626-7626/? W/System.err﹕ at java.lang.reflect.Method.invoke(Native Method)
01-03 18:16:17.025    7626-7626/? W/System.err﹕ at com.jjoe64.graphview.a.b.a(SourceFile:91)
01-03 18:16:17.025    7626-7626/? W/System.err﹕ at com.jjoe64.graphview.c.onTouchEvent(SourceFile:199)
01-03 18:16:17.025    7626-7626/? W/System.err﹕ at android.view.View.dispatchTouchEvent(
01-03 18:16:17.025    7626-7626/? W/System.err﹕ at android.view.ViewGroup.dispatchTransformedTouchEvent(
01-03 18:16:17.025    7626-7626/? W/System.err﹕ at android.view.ViewGroup.dispatchTouchEvent(
01-03 18:16:17.025    7626-7626/? W/System.err﹕ at android.v

Donnerstag, 10. Oktober 2013

Where is my app?

where is my app Hey guys.

I always had the problem finding the apps I was looking for on my android device. While searching I kept swiping right and left through all my app icons but somehow I overseen the apps I was looking for.

Then I had an Idea:

Can I search my installed apps by name?

After researching a little bit, I did not find any cool app for this feature, so I started to create it on my own. Developing the "search app by name"- feature, I added a few other cool features, like sorting apps by usage.

And now I present to the first release of: "Where is my app?" :)
search android app by name
Filtering all installed apps by name
The two main features of this app are:
  • Search and filter all installed apps by name
  • Sort apps by usage. That means, if you start apps with "Where is my app?" they will be grouped on top of all apps, so you can start your regular apps quicker.
  • If you do a long click on the app icons, you can quickly view app informations or even deinstall an app with just a quick click :)
  • Cool fancy animations
 You can read more about the features of "Where is my app?" on the official "Where is my app blog"

where is my app
You can deinstall apps with just a single click

This app is free for everybody! It has a small adbanner on the bottom, but if you like you can get the pro version of where is my app without ad.