Comments on: Playing with graphics in Android – Part VI

By: Martin

Martin — Wed, 18 Jan 2012 20:04:39 +0000

Don’t worry, I removed your email address

By: letonai

letonai — Wed, 18 Jan 2012 20:00:02 +0000

Hi there.. just thx for tutorial, is very good and working pretty well, thx.

By: Martin

Martin — Thu, 22 Dec 2011 14:55:31 +0000

Fixed, thanks!

By: andi

andi — Thu, 22 Dec 2011 14:54:00 +0000

Hi there! I found a little mistake in this really wonderful and helpful Tutorial. Thank you for that.
It says:”On ACTION_DOWN we will finally add the temporary bitmap to our ArrayList and null the currentGraphic variable.”
But it should be “On ACTION_UP…..”
Really thanks for the Tutorial!!
Greets Andi

By: Shantanu

Shantanu — Fri, 16 Sep 2011 05:24:53 +0000

I am working on a webview..in the webview i am displaying text (i want to show it as an ebook) ..but i am facing problem while flinging thepage..i want to fling the pages such that they appear one after the other AND WANT TO DISABLE THE SCROLLING

By: thaw

thaw — Tue, 06 Sep 2011 02:11:03 +0000

Thanks a lot for ur shared app.
But i got error “the application has stopped unexpectedly” ,
while app is runing i press home button,
so, app was exit,
but i got above error when i restart app again.
please help me,

By: Meneltour

Meneltour — Tue, 24 May 2011 03:38:54 +0000

Aborz try this
String st = “Score : “; String st1; String aString; Paint paint = new Paint();//too tell ur text how will it look …google what functions u can use aString = Integer.toString(count); st1 = st.concat(aString); canvas.drawText(st1, 10, 15,paint);
this is what i use to write a score in the canvas.
btw Martin do u know any more smart way ??

By: Alborz Sedaghat

Alborz Sedaghat — Sun, 09 Jan 2011 20:16:39 +0000

Hi Martin,
How should I go about in order to have some “text” on top of this canvas?
(from xml or code)

thanks

By: Martin

Martin — Fri, 07 Jan 2011 11:42:06 +0000

You should find out why the line 69 throws the null pointer. Do this by try to debug! How to do that can be found here: http://www.droidnova.com/debugging-in-android-using-eclipse,541.html

By: Alborz

Alborz — Fri, 07 Jan 2011 07:35:51 +0000

UpdatePhysics looks like this: (this method starts at line 65)

public void updatePhysics() {
GraphicObject.Coordinates coord;
GraphicObject.Speed speed;
for (GraphicObject graphic : _graphics) {
coord = graphic.getCoordinates();
speed = graphic.getSpeed();

// Direction
if (speed.getXDirection() == GraphicObject.Speed.X_DIRECTION_RIGHT) {
coord.setX(coord.getX() + speed.getX());
} else {
coord.setX(coord.getX() – speed.getX());
}
if (speed.getYDirection() == GraphicObject.Speed.Y_DIRECTION_DOWN) {
coord.setY(coord.getY() + speed.getY());
} else {
coord.setY(coord.getY() – speed.getY());
}

}
}