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Android applications


I have made some free apps for Android phones. They can be downloaded here.

They are not all on Google Play anymore, if you want to know why, then it's described here: Google No Play .

Note: You need to set the phone to allow installation from unknown sources in order to install these apps.


Loupe

A really easy loupe. Can even be used without glasses :-)
http://www.johny.dk/Android/Loupe.apk


Outlanding

Send your GPS location to the retrieval team after an outlanding.
http://www.johny.dk/Android/OutLanding.apk


Gliding

Use your mobile as a flight computer.
http://www.johny.dk/Android/Gliding.apk

Get the manual and instruction video (in Danish)

IGC files are included for training purposes, and you can put your own IGC files in sdcard/Gliding/IGC/. https://play.google.com/store/apps/details?id=dk.johny.gliding.activity
This app can also receive test data via WIFI from the IgcReplay program, so you can practice the use of Gliding while waiting for better weather.
This is mostly usefull, if you have a lot of IGC files you would like to test.
You can see how to send IGC files via WIFI here: http://www.johny.dk/Videos/IgcReplay_wifi.mp4


Shopping list

A really Keep It Simple Stupid shopping list. Reading glasses not required.
http://www.johny.dk/Android/ShoppingList.apk


Ampere

Showing charging / discharging current to the battery on an analog instrument.
The analog display of charging current makes it easier to find the optimal location of the phone on wireless chargers.
http://www.johny.dk/Android/Ampeere.apk


BeerCount

Keep a count of your beer intake.
http://www.johny.dk/Android/BeerCount.apk

Change your mobile's language to Norwegian or German to see the ladies version.


StartList

Automatic start list for (glider) pilots.
http://www.johny.dk/Android/StartList.apk


FlightCalc

Calculator for entering flight times in your logbook and the plane's journal.
http://www.johny.dk/Android/FlightCalc.apk

Try it! You have never been able to count hours and minutes with so few key clicks.

You can add these numbers together without any keystrokes if you use mental arithmetic. BUT IT DOESN'T WORK ERROR-FREE !!!

Fif: If you hold the phone horizontally, there is room for even big fumble fingers.


WinchSpeed

Speedometer for winch drivers at Kaldred.
http://www.johny.dk/Android/WinchSpeed.apk

See how strong a signal is being received from the aircraft. Also shows the difference signal during the start, but it is recommended to use the LedDisplay for that. The app starts when the winch engine is switched on. However, must be connected with a USB cable.

Log files from the winch starts are generated in /sdcard/WinchSpeed/

To work most easily, remove opening ceremonies such as swipe, PIN, face or fingerprint so that the phone just starts when you turn it on. So do not use your normal phone, or at least not without having it under surveillance. It will also be a bit critical to forget the phone somewhere if you turn off the start lock.

In addition, in the phone's developer settings enable "Avoid hibernation while charging".

You can use the phone with start lock, but then you have to turn on the phone yourself every time before turning on the ignition.


wwwToggle

Widget to turn mobile data and hotspot on and off.
http://www.johny.dk/Android/wwwToggle.apk

Due to some change in Android, this widget stops working quite often, so it is probably faster to yourself making the changes in the settings for hotspot and mobile data.

If it stops working, delete it (do not uninstall) and re-insert it. Annoying.

I work from time to time on the case, but it is not easy when Android does not behave as described in the documentation. I think it has something to do with the fact that a limit of 50 has been introduced for things that do nothing. So my widget just gets dumped. Imagine if the same thing happened to all the app icons that do nothing !!!


Tips

Record screen capture video:
adb shell screenrecord /sdcard/demo.mp4 adb shell screenrecord --size 544x960 /sdcard/demo.mp4 (for portrait, half size)

Copy file:
adb pull /sdcard/demo.mp4 E:/a_tmp/demo.mp4

Backup:
adb backup -apk -shared -all (will generate the file backup.adb in current dir)

Restore:
adb restore backup.adb

Icon størrelser:
drawable-mdpi 48x48
drawable-hdpi 72x72
drawable-xhdpi 96x96
drawable-xxhdpi 144x144
drawable-xxxhdpi 192x192

Generer iconer her: Icon generator

Virkede tidligere, men nu grå iconer: Icon generator

Material iconer her: https://design.google.com/icons/#ic_save