Appcelerator. Handle memory usage. Best practice

Titanium SDK version: 1.7.0 iPhone SDK version: 4.2

I am developing an iOS app and I mo开发者_高级运维nitor the memory usage for each window And it keeps decreasing for every screen.

1. What is consuming memory in general? I use views, tables and XHR data.

2. How can I release memory / decrease usage on each window?

Thankful for all input!

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Considering you are dealing with JavaScript being translated to Objective-C and can't necessarily write a native solution without using modules you could start by setting window variables to null (myJsWindowVar = null;), or delete those variables using delete (delete myJsWindowVar;). Personally I think setting variables to null will better translate to the suggested Objective-C best practice which is to set a pointer reference to null and prevent orphaned objects from hanging around.

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Make sure you close unused windows and clear our any references to native objects you no longer need in the app.

// create a window object
var aWindow = Ti.UI.createWindow();
var aLabel = Ti.UI.createLabel({ text : "Hey" });
aWindow.add(aLabel);
aWindow.open();

// done with window
aWindow.close();
aWindow = null;
aLabel.null;

Check out this presentation from the Appcelerator Codestrong conference for more details.