Web and WebWorks Development

[Saeger]

I know what you mean Tim... It's hard to identify some problems..

You (or your team) should give a try to my application and follow the steps that i told above.. The problem will deffinely occour.

The app itself isn't so good looking but i hope you identify the problem!

[genvej]

I have made a few apps that has these problems too. Unfortunately it is worse in 2.1.1 for me.

A solution that works for me is not to have any local variables in my javascript methods. If it is used only once fine, but if it used all the time, use global variables instead. I thought it could have something with "garbage collection" to do and it drastically solved 95% of my memory issues.

[Saeger]

Good to hear, but, in my case it's a little difficult because my applications isn't so simple...

[tneil]

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genvej wrote:

I have made a few apps that has these problems too. Unfortunately it is worse in 2.1.1 for me.

A solution that works for me is not to have any local variables in my javascript methods. If it is used only once fine, but if it used all the time, use global variables instead. I thought it could have something with "garbage collection" to do and it drastically solved 95% of my memory issues.

---

Now that is really interesting and has me puzzled....

The local variables that you moved out to global variables, were they pointing to blackberry.* objects?

[genvej]

___________________________________

Good to hear, but, in my case it's a little difficult because my applications isn't so simple... 

_________________________________________

You dare say my apps are simple!?

It is quite easy doable in even mid complex apps. It is definately not considered good practice in programming in general, but I have yet to see any mobile apps where this would be a difficult task. I am not saying you should globalize all your variables, but you could try it for the some of the most used methods (methods in loops etc).

Im not saying that it works. It was something i tried (in 3 different apps) with great success

[genvej]

Good to hear, but, in my case it's a little difficult because my applications isn't so simple... 

[genvej]

Those variables points to both Blackberry objects and simpler types as well. I never did it in more than one tempi, so I cant say wheether my success was due to Blackberry variables only-

[genvej]

Those variables points to both Blackberry objects and simpler types as well. I never did it in more than one tempi, so I cant say wheether my success was due to Blackberry variables only-
....

[ababut]

Genvej, that is very interesting, can you post a quick code snippet to illustrate better which variables you make global?

Are you doing something like this pseudo-code?

var a = blackberry.app.myFunction;

function doStuff() {
a();
}

[Saeger]

genvej,

I'm talking about 8k lines in one .JS file.
I have around 200 files in the application...

[genvej]

pseudo-code is more like this

function timer(){

while (true){

   doWork();

   sleep(30000);

   }

}

var list;

var number;

var gpsObject;

function doWork(){

list=getList();

number=10;

gpsObject=getGPS("11,2222","12,11111");

}

I moved variable declaration out of the function scope. This approach worked for me.