https://github.com/BeppiMenozzi/Knob
Some other possibilities:
https://github.com/bikcrum/CircularRangeSlider-Android
https://github.com/neild001/SeekArc
https://github.com/MarcinMoskala/ArcSeekBar
http://harshalbenake.blogspot.com/2017/05/hb-blog-135-android-vertical-seekbar.html
Or (not so good, because it doesn't work for 100%):
https://hackskrieg.wordpress.com/2012/04/20/working-vertical-seekbar-for-android/
https://developer.android.com/guide/topics/graphics/vector-drawable-resources
Using vector assets in Android apps
https://medium.com/androiddevelopers/draw-a-path-rendering-android-vectordrawables-89a33b5e5ebf
https://medium.com/@kenkyee/inkscape-settings-for-android-vector-drawables-ea65cf00e36c
https://www.w3schools.com/graphics/svg_feoffset.asp
https://developer.android.com/training/material/shadows-clipping
https://www.androidhive.info/2017/02/android-working-svg-vector-drawables/
Im Rahmen des Budgets:
https://developers.google.com/voice-actions/interaction/voice-interactions
https://support.google.com/websearch/answer/2940021?co=GENIE.Platform%3DAndroid&hl=en
08.03.2019 - 2 Std. → Telefonieren, mit Artem klären etc.
09.03.2019 - 8 Std. → Grundgerüst der App
15.03.2019 - 8 Std. → Bluetooth-Kommunikation
16.03.2019 - 8 Std. → das vorgegebene Layout in groben Zügen
17.03.2019 - 8 Std. → “simple” Layout + Ball
19.03.2019 - 1 Std. → kleine Änderungen an der App (Batterie-Layout)
29.03.2019 - 8 Std. → Layout, Schrift, Animationen
30.03.2019 - 8 Std. → Layout, Schrift, Animationen
31.03.2019 - 2 Std. → Layout, Schrift, Animationen
01.04.2019 - 1 Std. → Layout, Animation
02.04.2019 - 4 Std. → Layout
–
Bisher: 58 Stunden x 75 € ⇒ 4350 € + 200€ für Artem
–
Am 04.05.2019 hab ich Faurecia 65 Stunden a 75€ = 5801,25€ berechnet.