How to get the currently displayed Fragment in Android

In this android programming source code example, we are going to explore how to get the currently displayed fragment in android.

Below is a step by step source code to get the currently displayed fragment in android.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ededed">

    <FrameLayout
        android:id="@+id/frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</RelativeLayout>

MainActivity.java

import android.content.Intent;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class FragmentActivity1 extends AppCompatActivity {
    private String Tag = "Home";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_fragment1);
        FragmentManager mFragmentManager = getSupportFragmentManager();
        FragmentTransaction fragmentTransaction = mFragmentManager.beginTransaction();
        fragmentTransaction.replace(R.id.frame,new Fragment1(), Tag).commit();
    }

}

fragment_fragment1.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ededed">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:text="Current visible fragment"
        android:gravity="center"
        android:textSize="20sp"/>

</RelativeLayout>

Fragment1.java

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;


public class Fragment1 extends Fragment {
    private String Tag = "Home";

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_fragment1, container, false);

        Fragment visibleFragment = getActivity().getSupportFragmentManager().findFragmentByTag(Tag);
        if(visibleFragment != null && visibleFragment.getUserVisibleHint()){
            Toast.makeText(getActivity(), "Fragment Visible", Toast.LENGTH_LONG).show();
        }
        return view;
    }



}

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