Implementing Search for a Specific Blog On Home Page and Logout Functionality in Social Media Android App

This is the Part 7 of "Build a Social Media App in Android Studio" tutorial, and we are going to cover the following functionalities in this article:

• We are going to Search For a Blog on Home Page.
• If there are few blogs in our app then it is easy to search for a blog manually. But what happens when we have 1000 blogs then search for a particular blog became a very complicated and time taking task.
• That's why we are implementing this feature to search for a blog using the title or description provided.
• Also, we have implemented the Logout functionality in this article.

Step By Step Implementation

Step 1: Create a Logout and Search Button in the menu folder

Go to the app > res > menu > right-click > New > Menu Resource File and name the file as main_menu. Below is the code for the main_menu.xml file.

Step 2: Working with the HomeFragment.java file

We are searching for a blog in Node "Posts" using title and description value. If any key-value matches then it will all those blogs whose value contains our search content

if(modelPost.getTitle().toLowerCase().contains(search.toLowerCase())||
 modelPost.getDescription().toLowerCase().contains(search.toLowerCase())) {
 posts.add(modelPost);
 }

Below is the code for the Logout functionality

@Override
 public boolean onOptionsItemSelected(@NonNull MenuItem item) {

 if (item.getItemId() == R.id.logout) {
 firebaseAuth.signOut();
 startActivity(new Intent(getContext(), SplashScreen.class));
 getActivity().finish();
 }

 return super.onOptionsItemSelected(item);
 }

Go to the HomeFragment.java file and refer to the following code. Below is the complete and updated code for the HomeFragment.java file.

Output:

Note: Please Add drawable items before running the Application

Below is the file structure after performing these operations: