I mean I want to drawline but slowly. I write this code to draw line in ondraw method.
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caneta.setARGB(255, 255, 0,0);caneta.setStrokeWidth(10);
canvas.drawLine(0, ys * 1/2, this.getWidth(), ys * 1/2, caneta);
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how I did it slowly?
That's nearly like a gameloop works:
-invalidate your canvas ever X milliseconds (using a loop and Thread.sleep())
-increment your X/Y coords after every loop
-handle the new coords in onDraw() again
Example:
private int x1, x2;
private int y1, y2;
private View v;
public void start()
{
for (int i = 0; i <= 250; i++)
{
v.invalidate();
x2 += 1;
try
{
Thread.sleep(50);
}
catch (InterruptedException e)
{
}
}
}
in your existing view class, where you already have your onDraw method
protected void onDraw(Canvas canvas)
{
//draw your line here using your X and Y member
canvas.drawLine(x1, y1, x2, y2, caneta);
}