Скачать или смотреть How to Set an ActionBar Button Visibility to GONE Based on Android SDK Version

Discover how to conditionally set an ActionBar button's visibility to `GONE` in your Android app based on the SDK version. Follow this simple guide to improve your app's user experience.
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This video is based on the question https://stackoverflow.com/q/66418783/ asked by the user 'i_o' ( https://stackoverflow.com/u/4283649/ ) and on the answer https://stackoverflow.com/a/66418852/ provided by the user 'Android Killer' ( https://stackoverflow.com/u/861679/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Setting an ActionBar Button Visibility to GONE for Older Android Versions

Developing an Android application involves dealing with various user interface elements, and one common requirement is to manage the visibility of ActionBar buttons based on certain conditions. For instance, you may want to hide a camera icon button for devices running an SDK version lower than 21. This guide will guide you through the steps to achieve this, ensuring a better user experience for your app.

Problem Statement

Imagine you have a toolbar with some ActionBar buttons, including one for the camera. You want this camera icon to not appear if the user is running on an older device with an SDK version less than 21. This can be crucial for maintaining a clean and efficient user interface. Here's how you can achieve this functionality.

Solution Overview

To conditionally modify the visibility of ActionBar buttons, we'll be overriding the onCreateOptionsMenu method. This method allows you to inflate the menu defined in your XML file and customize it based on the device's SDK version.

Step-by-Step Instructions

1. Define Your Menu in XML:

Ensure that your ActionBar buttons are declared in a menu XML file. Below is an example of how the menu might look:

[[See Video to Reveal this Text or Code Snippet]]

2. Inflate the Menu in onCreateOptionsMenu:

In your MainActivity, you will need to override the onCreateOptionsMenu method to inflate this menu and check the SDK version.

[[See Video to Reveal this Text or Code Snippet]]

Important Considerations

MenuItem Reference: Make sure you correctly reference the ID of your ActionBar button (here it is R.id.addons) to modify its visibility properly.

SDK Version Check: The condition Build.VERSION.SDK_INT < 21 will prevent the camera button from being visible on older Android devices, thus optimizing the user experience.

Conclusion

By following these simple steps, you can effectively manage the visibility of your ActionBar buttons in response to the Android SDK version. This not only helps in creating a cleaner UI but also prevents accessibility issues on older devices that may not support specific features.

Now you have the knowledge to enhance your Android applications by conditionally showing or hiding UI elements based on the device's capabilities. Happy coding!