Android Application Development Tutorial - 69 - Locking and Unlocking a Canvas

[strited]

Travis you are really getting your groove in the later tutorials like this one. Great stuff

[Harith]

In your GFXSurface class, make sure you have the setContentView(ourSurface) method. This worked for me

[jazzninja]

You need to make sure that the isRunning value is set to true at some point, otherwise the while loop will never run and you'll just get a blank screen

[cellfreezer]

in GFXSurface class, add as the last line in your onCreate method. Yeah, I had the same problem and only solved this by checking out the next tutorial. =.=

[aditheunbeatable]

Anyone please help...!!!
When I run my app it starts perfectly but it wont draw anything on the canvas rather it would give me a black screen.I have written the same code bt dont know whats wrong with it.

[vimek]

m not gettin the blue screen..insted m gettin a black one..why is it so??

[david]

! = Exclamation mark....like in "What's up

In Java it's called the "Not" operator, or at least that''s what Bucky sez!

[skrutten]

I got the same error and this was because I forgot the "this" in the ourThread = new Thread(this);

[PaZaDrawing]

Maybe you forgot "OnPause" and "OnResume" methods!

[CrazyByDefault]

Dude, they're both drawRGB.. Which one do we need to use? drawRGB, right?

[dunngh]

Writing would've been better. I'm not so sure about putting all of that in the loop, but that I don't know so much about, and that's why I'm here!

[kigesui]

What is the frame rate of canvas.drawRGB?

[shreyawadhwa]

Sir I am not able to run this code GFsurface

[vimek]

i sortd ot the prob...i didnt initialize isRunning with TRUE :)

[chadbingham]

What is: Explanation mark! **100 points**

[chadcory]

thanks jazzninja77        make sure that the isRunning value is set to true

boolean isRunning = true;

[partizan]

if " ! " means not then i !hate u travis xD

[khdalamoudi]

Anyone else having the app shut down when pressing back after being done with the GFXSurface activity?

[spili]

i think i know what you did wrong ... in method you typed methosd "canvas.drawRGB" instead of "canvas.drawRGB"l and so you by acccident set transparency to "02", so you cant see it ... i hope it will work ~~

[debegr]

at 5:45 "you have to defined this on the manifest" xD in this second you have to listen very strong that you get the message why your programm is still crashing down -.- ;-)

THX Travis!