I want to redraw a view from another method (say setProgress) in a class extending View. How can I do this.
My view class is
public class SpinView extends View {
private Paint paint;
private Context context;
private Canvas canvas;
private RectF arcOval;
public SpinView(Context context) {
super(context);
this.context = context;
}
public SpinView(Context context, AttributeSet attrs) {
super(context, attrs, 0);
this.context = context;
}
public SpinView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
this.context = context;
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
this.canvas = canvas;
Display d = ((WindowManager)context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
int width = d.getWidth();
int height = d.getHeight();
arcOval = new RectF((width/2-50), (height/2-50), (width/2+50), (height/2+50));
// RectF arcOval = new RectF(200, 200, 300, 300);
paint = new Paint();
paint.setColor(Color.BLUE);
paint.setStrokeWidth(10);
paint.setAntiAlias(true);
paint.setStrokeCap(Paint.Cap.ROUND);
paint.setStyle(Paint.Style.STROKE);
canvas.drawArc(arcOval, 270f, 360, false, paint);
}
protected void setProgress(float angle){
paint = new Paint();
paint.setColor(Color.YELLOW);
paint.setStrokeWidth(10);
paint.setAntiAlias(true);
paint.setStrokeCap(Paint.Cap.ROUND);
paint.setStyle(Paint.Style.STROKE);
canvas.drawArc(arcOval, 270f, angle, false, paint);
}
}
All I want is to draw a circular arc of yellow color over the initially created arc of Blue color. Any help?
