Not anymore. Recently I found a quite interesting piece of software: It’s called AIDE (Android Java IDE). With this app you can develop Android apps directly on your Android device.
You can edit the Java code, build the apk and it also offers Git integration.
See https://plus.google.com/u/0/101304250883271700981/posts for more details.
Now all I need is an app idea and some more Java knowledge…..