package com.exercise.AndroidWidgetView;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.view.View;
public class MyWidgetView extends View {
final int MIN_WIDTH = 300;
final int MIN_HEIGHT = 150;
final int DEFAULT_COLOR = Color.WHITE;
int _color;
final int STROKE_WIDTH = 2;
public MyWidgetView(Context context) {
super(context);
// TODO Auto-generated constructor stub
init();
}
public MyWidgetView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
init();
}
public MyWidgetView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
init();
}
private void init(){
setMinimumWidth(MIN_WIDTH);
setMinimumHeight(MIN_HEIGHT);
_color = DEFAULT_COLOR;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// TODO Auto-generated method stub
super.onMeasure(getSuggestedMinimumWidth(), getSuggestedMinimumHeight());
}
@Override
protected void onDraw(Canvas canvas) {
// TODO Auto-generated method stub
Paint paint = new Paint();
paint.setColor(_color);
paint.setStrokeWidth(STROKE_WIDTH);
canvas.drawRect(5, 5, getWidth()-5, getHeight()-5, paint);
Path path;
path = new Path();
paint.setColor(Color.GRAY);
paint.setTextSize(25);
path.addArc(new RectF(25, 25, getWidth()-25, getHeight()-25), 180, 90);
canvas.drawTextOnPath("Hello", path, 0, 0, paint);
path = new Path();
path.addArc(new RectF(25, 25, getWidth()-25, getHeight()-25), 0, 90);
canvas.drawTextOnPath("Android-er", path, 0, 0, paint);
}
public void setColor(int color){
_color = color;
}
}
Saturday, August 20, 2011
More on the example of custom widget view
Modify onDraw() of MyWidgetView.java on last exercise to add more funny text on the custom widget view.
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