Pre-work - SimpleTodo

SimpleTodo is an android app that allows building a todo list and basic todo items management functionality including adding new items, editing and deleting an existing item.

Submitted by: nannandenden

Time spent: 2 hours spent in total

User Stories

The following required functionality is completed:

• [x] User can successfully add and remove items from the todo list
• [x] User can tap a todo item in the list and bring up an edit screen for the todo item and then have any changes to the text reflected in the todo list.
• [x] User can persist todo items and retrieve them properly on app restart

The following optional features are implemented:

• [x] Persist the todo items into SQLite instead of a text file
• [x] Improve style of the todo items in the list using a custom adapter
• [ ] Add support for completion due dates for todo items (and display within listview item)
• [x] Use a DialogFragment instead of new Activity for editing items
• [ ] Add support for selecting the priority of each todo item (and display in listview item)
• [ ] Tweak the style improving the UI / UX, play with colors, images or backgrounds

The following additional features are implemented:

• [ ] List anything else that you can get done to improve the app functionality!

Video Walkthrough

Here's a walkthrough of implemented user stories:

GIF created with LiceCap.

Project Analysis

As part of your pre-work submission, please reflect on the app and answer the following questions below:

Question 1: "What are your reactions to the Android app development platform so far? Compare and contrast Android's approach to layouts and user interfaces in past platforms you've used."

Answer: I've experience in developing iOS but have more experience in developing Android. Comparing XCode and Android Studio, Android Studio feels easier to setup and get started. Probably due to more experience in developing Android, connection between UI(Layout/View) and code is more clear in Android. It was more difficult to make a connection between code and Storyboard in XCode. However, iOS libraries seem to be well maintained and reference is easier to find.

Question 2: "Take a moment to reflect on the ArrayAdapter used in your pre-work. How would you describe an adapter in this context and what is its function in Android? Why do you think the adapter is important? Explain the purpose of the convertView in the getView method of the ArrayAdapter."

Answer: Adapter is a glu between ListView and items data. convertView is used view that can be reused in the ListView. Adapter can fill the items data reusing the 'convertView' to avoid creating a lot of new view objects.

Notes

Instruction was clear and easy to follow. I enjoyed writing the Project Analysis since it gave me the chance to look back and understand the Android library deeper. It took me relatively long time to create the video walkthrough.

License

Copyright 2017 Nan Den

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.