Catch the Ball Step3-1

MainActivity.java

package com.codingwithsara.catchtheball;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    private TextView scoreLabel;
    private TextView startLabel;
    private ImageView box;
    private ImageView orange;
    private ImageView pink;
    private ImageView black;

    // 位置
    private float boxY;

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

        scoreLabel = findViewById(R.id.scoreLabel);
        startLabel = findViewById(R.id.startLabel);
        box = findViewById(R.id.box);
        orange = findViewById(R.id.orange);
        pink = findViewById(R.id.pink);
        black = findViewById(R.id.black);

        orange.setX(-80.0f);
        orange.setY(-80.0f);
        pink.setX(-80.0f);
        pink.setY(-80.0f);
        black.setX(-80.0f);
        black.setY(-80.0f);

        startLabel.setVisibility(View.INVISIBLE);
        boxY = 500.0f;
    }
}