[Feature Request] Add "Add Task" Button

[drdanz]

At the moment it is possible to add a new event, but, even though tasks from OpenTasks are shown, there is no way to add a new task.

[drdanz]

By the way, thank you a lot for this widget, It's incredibly useful.
#ilovefs

[yvolk]

@drdanz As a first thought, I would suggest for you to look for existence of something like "Add task" button (small widget) in the Tasks app
?!

[yvolk]

Questions / thoughts:

1. Any suggestion for an icon of this button (different from "Add new calendar event" button)? As I see Material design has "Add task" icon: https://material.io/resources/icons/?search=task&icon=task&style=baseline

2. The "Add task" button will be specific to a particular Task app. In a case we use more than one, "Add task" button will be created for the first app in the list of selected Task lists (each Task list belongs to the particular Task app). See e.g. the screenshot: Add support for "Tasks: Astrid To-Do List Clone" #2 (comment)

[yvolk]

Implemented in v.4.2.0 #3

"Add Task" Button appears only when at least one Tasks list selected. The same for "Add new Calendar event" button.

[yvolk]

As I see, currently the "Add new task" button doesn't work for "Tasks of Samsung Calendar" app.

I don't know the correct command ("Intent" in terms of Android) to tell the app that I want to add a new task.
See lines 30 - 32 here:
https://github.com/andstatus/todoagenda/blob/master/app/src/main/java/org/andstatus/todoagenda/task/samsung/SamsungTasksProvider.java

But maybe @ekalin or somebody else could help me here?!