This tutorial aims to equip you with the knowledge and tools to create usable, accessible, and inclusive mobile apps. We will discuss the best practices for usability and accessibility in mobile app design and show you how to implement these practices effectively.
By the end of this tutorial, you will understand:
This tutorial is suitable for beginners. However, a basic understanding of mobile app design and development will be beneficial.
Usability refers to the ease with which a user can navigate and interact with an app. Accessibility, on the other hand, ensures that apps are usable by people with disabilities.
We will now look at some coding examples that demonstrate usability and accessibility best practices.
// This is an example of a color in Android that has good contrast
<color name="high_contrast">#FFD700</color>
The above code defines a color with high contrast. It can be used for text on a dark background to ensure readability.
// This is an example of a button in Android with appropriate size for touch controls
<Button
android:layout_width="70dp"
android:layout_height="70dp"
android:text="Button" />
The above code defines a button with a size of 70dp, which is an appropriate size for touch controls.
In this tutorial, we have covered:
To advance your understanding, consider exploring more about usability and accessibility guidelines provided by the Android and iOS platforms.
Create a layout with two buttons. Ensure that they have adequate spacing and are large enough for touch controls.
Design a color scheme for your app. Ensure that there is sufficient contrast between text and background colors.
Exercise 1:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:padding="16dp">
<Button
android:layout_width="70dp"
android:layout_height="70dp"
android:text="Button 1"
android:layout_marginRight="16dp" />
<Button
android:layout_width="70dp"
android:layout_height="70dp"
android:text="Button 2" />
</LinearLayout>
Exercise 2:
<color name="background">#FFFFFF</color>
<color name="text">#000000</color>
The color scheme above provides a high contrast between background and text, ensuring readability.