Android Animation : Rotating View Animation

Android Animation : Rotating View Animation 

This is second tutorial of animation. In this tutorial we will learn about android view animation. We will create rotating view animation. 

Anim Directory:

First of all create anim resource file as rotate.xml.(If you do not have anim resource than create it first).

If you don't know how to create a anim resource directory than watch this tutorial.

Codes:

1. rotate.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">

    <rotate
        android:fromDegrees="0"
        android:toDegrees="360"
        android:pivotX="50%"
        android:pivotY="50%"
        android:duration="2000"
        android:repeatMode="restart"
        android:repeatCount="infinite"/>
</set>

2. 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/rotate"
            android:layout_width="200dp"
            android:layout_height="100dp"
            android:src="@drawable/logo"
            android:layout_marginBottom="20dp"/>
        <Button
            android:id="@+id/btn"
            android:layout_width="200dp"
            android:layout_height="80dp"
            android:text="Rotate"
            android:textSize="30dp"
            android:background="@drawable/capsule"
            android:textColor="@color/blue"
            android:layout_marginBottom="20dp"/>

    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

3. 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 rotate;
    Button btn;
    ImageView logo;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btn = findViewById(R.id.btn);
        logo = findViewById(R.id.rotate);

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

}

Result :

Video Tutorial: