Android Graphic And Animation

package example.graphicsanimationdemo1;

import android.graphics.Color;
import android.graphics.drawable.ShapeDrawable;
import android.graphics.drawable.TransitionDrawable;
import android.graphics.drawable.shapes.RectShape;
import android.os.Bundle;
import android.support.v4.content.res.ResourcesCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.ImageView;
import android.widget.RelativeLayout;

public class MainActivity extends AppCompatActivity {

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

        DrawableGraphic();
        ShapeDrawableGraphic();
    }


    public void DrawableGraphic() {

        //Get Parent Layout

        RelativeLayout rl = (RelativeLayout) findViewById(R.id.mainLayout);

        //Create a dynamic ImageView object to place it within the Relative Layout

        ImageView demoimg = new ImageView(MainActivity.this);

        //Get the Image Source from @drawable, here demo.png

        demoimg.setImageResource(R.drawable.demo);

        //Specify the placement of ImageView within the RelativeLayout

        RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(300, 300);

        //Add rule to align the image to the left of the parent.

        params.addRule(RelativeLayout.ALIGN_PARENT_LEFT);

        demoimg.setLayoutParams(params);

        //Add ImageView within the Relative Layout

        rl.addView(demoimg);
    }


    public void ShapeDrawableGraphic() {
        //Assign Shape Properties
        int alpha = 127;
        int width = 300;
        int height = 300;
        int padding = 10;

        //Get Parent Layout
        RelativeLayout rl = (RelativeLayout)findViewById(R.id.mainLayout);

        // Create Shape 2
        ShapeDrawable shape2 = new ShapeDrawable(new RectShape());
        shape2.getPaint().setColor(Color.CYAN);
        shape2.setIntrinsicHeight(height);
        shape2.setIntrinsicWidth(width);
        shape2.setAlpha(alpha);

        // Put Shape 2 into an ImageView
        ImageView img = new ImageView(getApplicationContext());
        img.setImageDrawable(shape2);
        img.setPadding(padding, padding, padding, padding);

        //Specify the placement of ImageView within the RelativeLayout
        RelativeLayout.LayoutParams params = new  RelativeLayout.LayoutParams(height, width);

        //Add rule to align the image to the left of the parent.
        params.addRule(RelativeLayout.CENTER_IN_PARENT);
        img.setLayoutParams(params);

        //Add ImageView within the Relative Layout
        rl.addView(img);

    }

    public void Animation(View v){

        //Get the Shape Transition Drawable Objects
        TransitionDrawable transition = (TransitionDrawable)
                ResourcesCompat.getDrawable(getResources(), R.drawable.shape_transition, null);

        //Apply Effect
        transition.setCrossFadeEnabled(true);

        //Assign the effect to an ImageView object
        ((ImageView) findViewById (R.id.imgShape2)).setImageDrawable(transition);

        //Set the Transition Effect Time
         transition.startTransition(2000);
         }

    }