OnTouch

package com.example.i310_54.myapplication08;

import android.graphics.Color;
import android.os.CountDownTimer;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ProgressBar;

import java.util.Random;

public class MainActivity extends AppCompatActivity {

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

        final Button button=findViewById(R.id.button1);
        button.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {

                switch (event.getAction()){

                    case MotionEvent.ACTION_DOWN:{
                        Button button2 = findViewById(R.id.button2);
                        float x = button2.getX();
                        x += 20.0f;
                        button2.setX(x);
                    }break;

                    case MotionEvent.ACTION_MOVE:{
                        Button button2 = findViewById(R.id.button2);
                        int w = button2.getWidth();
                        w += 10;
                        button2.setWidth(w);
                    }break;
                    case MotionEvent.ACTION_UP:{
                        Button button2 = findViewById(R.id.button2);
                        Random rnd=new Random();
                        int r=rnd.nextInt(256);
                        int g=rnd.nextInt(256);
                        int b=rnd.nextInt(256);
                        button2.setBackgroundColor(Color.argb(0xff,r,g,b));
                    }break;
                }
                return false;
            }
        });
    }
}