2019.9.23

MainActivity.java

package edu.byuh.cis.cs203.hellocs203.sys;

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

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        LetiView lv = new LetiView(this);
        setContentView(lv);
    }
}

LetiView.java

package edu.byuh.cis.cs203.hellocs203.sys;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.view.View;
import android.widget.Toast;

import edu.byuh.cis.cs203.hellocs203.graphics.Duck;

public class LetiView extends View {

    private Duck donald;
    private boolean init;

    public LetiView(Context c) {
        super(c);
        init = false;
        donald = new Duck(getResources());
        Toast t = Toast.makeText(c, "This is another factory example!", Toast.LENGTH_LONG);
        t.show();
        Timer tim = new Timer();
}

    @Override
    public void onDraw(Canvas c) {
        float w = c.getWidth();
        float h = c.getHeight();
        if (init == false) {
            donald.resize(w);
            donald.setPosition(w-donald.width(), 0);
            init = true;
        }
        c.drawColor(Color.GREEN);
        donald.draw(c);
    }

}

Timer.java

package edu.byuh.cis.cs203.hellocs203.sys;

import android.os.Handler;
import android.os.Message;
import android.util.Log;

public class Timer extends Handler {

    public Timer() {
        sendMessageDelayed(obtainMessage(), 0);
    }

    @Override
    public void handleMessage(Message m) {
        Log.d("CS203", "Hello, Altair!");
        sendMessageDelayed(obtainMessage(), 1000);
    }
}