No, that wasn't the problem. I figured out what it was though. As you
may know (or not know), the (x,y) coordinate system on the Android
screen is a little different. The origin is in the top left corner, so
therefore x increases across to the right and y increases down to the
bottom.
So instead of:
Java:
RectF clockRect = new RectF(86, 314, 394, 6);
It should have been:
Java:
RectF clockRect = new RectF(86, 6, 394, 314);
It all makes sense now.
On Feb 27, 12:07 am, Marco Nelissen <marc...@android.com> wrote:
> Not sure if this is the cause of your problem, but the arguments to
> the RectF constructor are supposed to be left, top, right, bottom, and
> you seem to be specifying left, top, width, height instead.
>
> On Thu, Feb 26, 2009 at 11:48 AM, xspotlivin <dmbrown2...@gmail.com> wrote:
>
> > I'm trying to create a customized clock that will highlight certain
> > intervals that I choose (like a pie slice). I'm trying to use the
> >drawArccommand for the Canvas class. However, it will only draw arcs
> > of 360 degrees or more (full circles). I'd like to draw arcs of about
> > 15 to 20 degrees or so. I have no idea what is wrong with my code. Can
> > anyone figure out the problem? I know it's not being drawn behind my
> > background because it will draw the full circle on top (you can just
> > remove the background line of code). I'd really appreciate you all
> > help. My code for my Activity and View class is below:
>
> > Activity Class:
>
> > Code:
> > import android.app.Activity;
> > import android.content.pm.ActivityInfo;
> > import android.os.Bundle;
> > import android.view.Window;
> > import android.view.WindowManager;
>
> > public class AdherenceClock extends Activity {
>
> > private ClockView clockView = null;
>
> > /** Called when the activity is first created. */
> > �...@override
> > public void onCreate(Bundle savedInstanceState) {
> > super.onCreate(savedInstanceState);
>
> > this.clockView = new ClockView(this);
>
> > //Remove the title bar, set the application to full screen,
> > and set the orientation to landscrape
> > this.requestWindowFeature(Window.FEATURE_NO_TITLE);
> > this.getWindow().setFlags
> > (WindowManager.LayoutParams.FLAG_FULLSCREEN,
> > WindowManager.LayoutParams.FLAG_FULLSCREEN);
> > setRequestedOrientation
> > (ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
>
> > setContentView(this.clockView);
> > }
> > }
>
> > And the ClockView Class:
>
> > Code:
> > import android.content.Context;
> > import android.graphics.Canvas;
> > import android.graphics.Paint;
> > import android.graphics.RectF;
> > import android.view.View;
>
> > public class ClockView extends View {
>
> > protected final Paint amColor = new Paint();
>
> > public ClockView(Context context) {
> > super(context);
>
> > this.setBackgroundDrawable(getResources().getDrawable
> > (R.drawable.clockbackground));
>
> > this.amColor.setARGB(100, 248, 225, 110);
> > }
>
> > @Override
> > protected void onDraw(Canvas canvas) {
>
> > float startAngle = 0;
> > float sweepAngle = 60;
>
> > RectF clockRect = new RectF(86, 314, 394, 6);
> > canvas.drawArc(clockRect, startAngle, sweepAngle, true,
> > this.amColor);
> > }
> > }
>
> > Thanks.
>
>
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