Android Animation : Fading Animation

Android Animation : Fading Animation 

Animation Enhances the beauty of any application. In this tutorial we will learn about android view animation. We will create fade in and fade out animation. 

Anim Directory:

First of all create anim resource directory in resources. And create two file named as fade_in.xml and fade_out.xml.

Codes:

1. fade_in.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <alpha
        android:duration="3000"
        android:fromAlpha="0.0"
        android:toAlpha="1.0"/>
</set>

2. fade_out.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <alpha
        android:duration="3000"
        android:fromAlpha="1.0"
        android:toAlpha="0.0"/>
</set>

3. activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:gravity="center"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent">


        <ImageView
            android:id="@+id/logo1"
            android:layout_width="400dp"
            android:layout_height="200dp"
            android:src="@drawable/logo"/>
        <Button
            android:id="@+id/fadein"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="FADE IN"
            android:textSize="30dp"
            android:textColor="@color/blue"
            android:padding="20dp"
            android:paddingLeft="10dp"
            android:paddingRight="10dp"
            android:background="@drawable/capsule"/>
        <Button
            android:layout_marginTop="20dp"
            android:id="@+id/fadeout"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="FADE OUT"
            android:textSize="30dp"
            android:textColor="@color/blue"
            android:padding="20dp"
            android:paddingLeft="10dp"
            android:paddingRight="10dp"
            android:background="@drawable/capsule"/>
    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

4. ActivityMain.java

 package com.bharat_putra_tech.testapp;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.ImageView;


public class MainActivity extends AppCompatActivity {


    Animation fade_in,fade_out;
    Button fadeIN,fadeOUT;
    ImageView logo;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        logo = findViewById(R.id.logo1);
        fadeIN = findViewById(R.id.fadein);
        fadeOUT = findViewById(R.id.fadeout);

        fadeIN.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                fade_in = AnimationUtils.loadAnimation(getApplicationContext(),R.anim.fade_in);
                logo.setVisibility(View.VISIBLE);
                logo.startAnimation(fade_in);
            }
        });

        fadeOUT.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                fade_out = AnimationUtils.loadAnimation(getApplicationContext(),R.anim.fade_out);
                logo.setVisibility(View.VISIBLE);
                logo.startAnimation(fade_out);
            }
        });

    }

}

Result :

Video Tutorial: