Make the Activity to implement this interface, Fragment 1 will call the interface method that will be implemented by the Activity class, this method in the Activity class will route the data from Fragment 1 to Fragment 2. When a button in Fragment 1 is clicked, the TextView in Fragment 2 has to increase by one or decrease by 1.Ī solution to this is to use an Interface class. In this example, Fragment 1 has two Buttons, Fragment 2 has a TextView to display a counter. Next we create activitytop.xml file: In Android Studio select: File > New > Layout Resource file. Select mipmap-mdpi as this is the average image quality. Android Studio will require you to choose imagine quality that will be created. Ensure that you select Kotlin as your preferred programming language. Copy and paste andrea.jpg file to mipmap folder of project.
Creating the project Create a new empty activity project in Android studio and name it as NavExample. Each icon associated with a individual screen or Fragment. You have two Fragments in an Activity, and Fragment 1 wants to talk to Fragment 2. To create a simple mobile app that demonstrates how fragments are used in Android. The navigational drawer is a complete layout box that contain a left side sliding menu panel with multiple icons. The Activity acts like a tunnel which connects the fragments. This is a demonstration of communications between fragments through an Activity.
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