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In this post, I’m going to describe several approaches that you can use in your Android application to return data to previous screens. This screen will be navigated to from several other screens, and when the user chooses an image, the previous screen should be brought from the backstack and notified of user’s choice. For example, you might have a dedicated screen in your application for choosing an image. However, in some cases, you need to navigate back from the “next” screen to the “previous” one and return some kind of data to it. As I explained in the previous post about navigation in Android apps, the “next” screen doesn’t need to “know” or “assume” anything about the “previous” screen to support this scenario. Step 2 Following is the content of the modified main activity file MainActivity. Step 2 Add the following code to res/layout/activitymain.xml.

Step 1 Create a new project in Android Studio, Go to File New Project and fill all required details to create a new project. In some cases, when you need to pass data to that screen, the navigation involves specifying additional parameters. Here is the example to send an object between two activities. Public class MainActivity.When you navigate within your Android application, you usually just switch to the next screen. Complete Code Step by Step Open MainActivity.java paste code import androidx. GetStringExtra() method helps us to receive string simlirarily getIntExtra() for receiving integer value so on. Intent.putExtra( "username", "codewithrish") // you can pass any primary data type easily Receiving data in HomeActivity PutExtra() method of intent required for passing data call startActivity method and pass intent Intent intent = new Intent(this, HomeActivity.class) Snippet to use startActivity() method // create intent object with context and class name of other activity we have two methods to start new activity one is startActivity() and other is startActivityForResult() each have their own use-cases. Name your newly created activity as HomeActivity. one project is ready you will have an empty MainActivity Create Another Activity Select empty activity while creating the project.