Note that we are going to implement this project using the Java language. A sample GIF is given below to get an idea about what we are going to do in this article. Shared Preferences class provides APIs for reading, writing, and managing this data.
You can have a simple shared preference API that you can use to store preferences and pull them back as and when needed.
And then you could retrieve that by its key (here username). For example, you might have a key being “username” and for the value, you might store the user’s username. Shared Preferences can be thought of as a dictionary or a key/value pair. Shared Preferences is the way in which one can store and retrieve small amounts of primitive data as key/value pairs to a file on the device storage such as String, int, float, Boolean that make up your preferences in an XML file inside the app on the device storage. One of the most Interesting Data Storage options Android provides its users is Shared Preferences.
#Android java code to create private contact group how to
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