How to Preload an image in Android

var win = Ti.UI.createWindow();
var view = Ti.UI.createView();

Titanium.UI.setBackgroundImage('images/logo.开发者_运维技巧png');
win.add(view);
win.open();

Once this image is loaded, i need to navigate to next page in some seconds or when the application is loaded fully... how to do it?

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You could try using a separate ImageView and add a listener for the "load" event, i.e.:

var imageView = Ti.UI.createImageView({ url: 'images/logo.png' });
win.add(imageView);
imageView.addEventListener("load", function(e) {
    // navigate here
});