We have to use an image in our app in a variety of places and sizes in a variety of situations. Importing different photos for different sizes will be a tedious procedure for us as a developer. Bit Maps can be used to solve this problem. Bit Maps can be used to resize images, and as a developer, it is a good practice to do so.
Failing to meet the user's expectations
On the Google Play Store, there are a lot of Android apps, and your app is based on one of them. It's evident that the concept has previously been implemented. If you want to stand alone in the crowd then you should be focusing on fulfilling the expectation which your user has. For example, Good navigation, Better color combination, and proper use of android material design can be implemented.
Using Fragments Isn't a Good Idea
Fragments are not being used properly by new Android developers, as well as some older ones. They use activity in the app all over the place. However, using fragments on the app where you can is a good practice. Fragments allow us to swiftly update our UI components and speed up the app's response time.
