Comments on: Displaying Images with Android

By: CSEnginerr13

CSEnginerr13 — Wed, 22 May 2013 19:49:59 +0000

Hi! I’m having trouble getting this code to run. I have one error, and it is:

In MainThread during the Game Loop

this.gamePanel.onDraw(canvas);

is throwing the error: Suspicious method call; should probably call draw rather than onDraw.

Now… The way I read the code, this method should be calling the onDraw override used in MainGamePanel.java; I have tried suppressing the error, but either way my program exits when it reaches the call (verified through tracing).

Any ideas? :/

By: Gaurav

Gaurav — Tue, 05 Mar 2013 10:40:31 +0000

Just wondering if the canvas scaling the bitmap results in skewed height and width for bitmaps?

By: nguyenhoai

nguyenhoai — Tue, 19 Feb 2013 19:43:25 +0000

The article is very good. But i think you better say about the line:
093 return true; //You changed this, but a lots people did not notice. So they cant catch event MOVE and UP (i took for a while to notice this).

Anyways i love your site.
Thanks.

By: Mete

Mete — Wed, 12 Dec 2012 01:05:51 +0000

Great tutorial! Very useful to me, thanks

By: Christian

Christian — Mon, 26 Nov 2012 12:59:30 +0000

Where does he indicate which activity it will be created on. I have several activities as a result of a menu before the game, so if i wanna create the game in a specific activity, where do i indicate that?

By: Nikola Velimirovic

Nikola Velimirovic — Sat, 06 Oct 2012 16:05:30 +0000

You have bad logic issue in next portion of code:

public void handleActionDown(int eventX, int eventY) {
if (eventX >= (x – bitmap.getWidth() / 2) && (eventX = (y – bitmap.getHeight() / 2) && (y = x && (eventX = y && (eventY <= (y + bitmap.getHeight()))) {
// droid touched
setTouched(true);
} else {
setTouched(false);
}
} else {
setTouched(false);
}

}

because bitmap of a droid start from top left corner (0,0) to (width,height). Otherwise great tutorial!

By: Adil

Adil — Mon, 09 Jul 2012 18:40:00 +0000

Same problem for me. Down events only being detected, not up or move events…

By: Jeth

Jeth — Sun, 08 Jul 2012 17:43:33 +0000

Hey, excellent tutorial really helped me. How about limiting the movement of the object let’s say just left and right only? Thanks!

By: Amer

Amer — Wed, 13 Jun 2012 19:01:23 +0000

Adding my thanks too. Excellent tutorials.

By: mang0es

mang0es — Thu, 05 Apr 2012 04:14:27 +0000

Thanks for sharing the code!

I am trying to use a grid system as a background for this app. However, when I placed the image file of the grid system (png) in the main.xml, the onDraw in MainGamePanel overrides the background. When I replaced “TRANSPARENT” with “BLACK”, it shows the entire path of the image’s movement across the screen. How do I have the grid system show on the app?