/
DotView.java
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/
DotView.java
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package com.oreilly.demo.android.pa.uidemo.view;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.util.AttributeSet;
import android.view.View;
import com.oreilly.demo.android.pa.uidemo.model.Dot;
import com.oreilly.demo.android.pa.uidemo.model.Dots;
/**
* I see spots!
*
* @author <a href="mailto:android@callmeike.net">Blake Meike</a>
*/
public class DotView extends View {
private volatile Dots dots;
/**
* @param context the rest of the application
*/
public DotView(Context context) {
super(context);
setFocusableInTouchMode(true);
}
/**
* @param context
* @param attrs
*/
public DotView(Context context, AttributeSet attrs) {
super(context, attrs);
setFocusableInTouchMode(true);
}
/**
* @param context
* @param attrs
* @param defStyle
*/
public DotView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
setFocusableInTouchMode(true);
}
/**
* @param dots
*/
public void setDots(Dots dots) { this.dots = dots; }
/**
* @see android.view.View#onDraw(android.graphics.Canvas)
*/
@Override protected void onDraw(Canvas canvas) {
Paint paint = new Paint();
paint.setStyle(Style.STROKE);
paint.setColor(hasFocus() ? Color.BLUE : Color.GRAY);
canvas.drawRect(0, 0, getWidth() - 1, getHeight() -1, paint);
if (null == dots) { return; }
paint.setStyle(Style.FILL);
for (Dot dot : dots.getDots()) {
paint.setColor(dot.getColor());
canvas.drawCircle(
dot.getX(),
dot.getY(),
dot.getDiameter(),
paint);
}
}
}