2019.9.11

MainActivity.java

package edu.byuh.cis.cs203.hellocs203;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //TextView tv = new TextView(this);
        //tv.setText("Hello CS 203, my favorite class!");
        LetiView lv = new LetiView(this);
        setContentView(lv);
    }
}

LetiView.java

package edu.byuh.cis.cs203.hellocs203;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.view.View;

public class LetiView extends View {

    private Bitmap duck;

    public LetiView(Context c) {
        super(c);
        duck = BitmapFactory.decodeResource(getResources(), R.drawable.duck);
    }

    @Override
    public void onDraw(Canvas c) {
        float w = c.getWidth();
        float duckSize = w * 0.2f;
        duck = Bitmap.createScaledBitmap(duck,
                (int)duckSize, (int)duckSize, true);
        c.drawColor(Color.GREEN);
        c.drawBitmap(duck, 0, 0, null);
    }

}