Writing basic Android applications with Tasker

Introduction

Tasker is a graphic way to build small Android applications that you can either launch manually, or have Android launch in the right context.

The default interface is set to Beginner Mode; To switch to Advanced Mode, click on Preferences > UI tab.

One-click kill single app

Pause GPS when turning screen off, and enable it again when turning screen on

Take picture when adding pin to Maps.me