Hiya,

I'm very new to programming in general (so forgive what is probably a very obvious question, and try to be patient with your responses!), and am currently building a Java game which I am now trying to convert to android. One of the core classes in the game is an imagesLoader class, which reads a text file containing a list of file names, types, etc, then uses this to load bufferedImage. what I would like to do, is simply adapt this class so it will work with android. I need to load things to bitmaps, right? How is this done?

The way I would ideally like it to work would be:



i.e. a way of loading a bitmap when one has its address as a string.. Is this kind of thing possible? After this I'll need to adapt my draw methods (of course), but one thing at a time!

Thanks a lot,
tiswas

I'm not sure, but try this. It should work:




Cheers, Lukas

that looks great - thanks for helping out. Lots to sort before I can check if it works though!

hmm.. I can't get it to work.. My code is:



but I still get a force close.. Anyone have any ideas?

Can you post the logcat output?

Here are the errors I get (nothing is mentioned about not finding the image, I assume it just assigned null):

04-12 20:11:20.786: ERROR/AndroidRuntime(239): Uncaught handler: thread Thread-8 exiting due to uncaught exception
04-12 20:11:20.786: ERROR/AndroidRuntime(239): Uncaught handler: thread Thread-8 exiting due to uncaught exception
04-12 20:11:20.836: ERROR/AndroidRuntime(239): java.lang.NullPointerException
04-12 20:11:20.836: ERROR/AndroidRuntime(239): at android.graphics.Canvas.throwIfRecycled(Canvas.java:954)
04-12 20:11:20.836: ERROR/AndroidRuntime(239): at android.graphics.Canvas.drawBitmap(Canvas.java:980)
04-12 20:11:20.836: ERROR/AndroidRuntime(239): at levy.adam.GameView$GameThread.doDraw(GameView.java:252)
04-12 20:11:20.836: ERROR/AndroidRuntime(239): at levy.adam.GameView$GameThread.run(GameView.java:113)
04-12 20:11:20.836: ERROR/AndroidRuntime(239): java.lang.NullPointerException
04-12 20:11:20.836: ERROR/AndroidRuntime(239): at android.graphics.Canvas.throwIfRecycled(Canvas.java:954)
04-12 20:11:20.836: ERROR/AndroidRuntime(239): at android.graphics.Canvas.drawBitmap(Canvas.java:980)
04-12 20:11:20.836: ERROR/AndroidRuntime(239): at levy.adam.GameView$GameThread.doDraw(GameView.java:252)
04-12 20:11:20.836: ERROR/AndroidRuntime(239): at levy.adam.GameView$GameThread.run(GameView.java:113)

incidentally, I don't mind where I store my images, so long as I know what string to use to find them with the technique:

BitmapFactory.decodeFile(String address)

Hi,

I am not sure if that'll help you or mislead you [I am also a novice here], but I have been looking to load an image from memory to an ImageView, goign through a drawable. Using this code, I have been able to get my needs :



Checking this url http://www.androidsnippets.org/snippets/171/ , it seems you'll be able to use the drawable as a bitmap ... [might be too slow though]

that sounds good, but where in your eclipse project do you put the image? say your eclipse project is called myproj, and your package is called myapp. If your address is "/data/data/myapp/img.png" do you put the img in the myapp folder along side your source code, or just in the root myproj folder?

hmm - actually I think my best bet is going to be to use AssetManager I think.. I've got the following code to work (with a string as the argument). yay!