Titanium Appcelerator is a pretty nifty tool. Here’s a small data manager object that looked after my external requests.
I was tinkering with Appcelerator recently, and came upon the need to build a data manager to shoot off requests in a bit of a “fire-and-forget” sort of way. I created this global object I could channel requests into. My particular server always replied with JSON, so you can tweak this for whatever data your remote server will return.
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var DataManager = { send: function(toWhere, data, callback, context) { // Fail if (!toWhere) { return false; } // Defaults data = data || {}; // The data to send to the server callback = callback || function(_r) { return _r; }; // The callback. If none is supplied, will just return the result context = context || null; // The object that 'this' will refer to in the callback if (Ti.Network.online) { var XHR = Ti.Network.createHTTPClient({ onload: function() { var result = JSON.parse(this.responseText); return callback.apply(context, [result]); }, onerror: function() { var result = JSON.parse(this.responseText); alert('There was an error with the connection. Please try again later.'); return result; } }); XHR.setTimeout(15000); // 15s is my timeout. Use your own here XHR.open('POST', 'http://example.com/' + toWhere, false); XHR.send(data); } else { // Handle offline here alert('You are offline'); } } }; |
Using this object in the global scope, you can just type:
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DataManager.send('user/new', { myVar: 'some value' }, this.processXHR(), this); |
Appcelerator has sped up development in key areas tremendously, but at the cost of some flexibility and code bloat. It’s worth keeping an eye on, as each release is leaps and bounds ahead of its predecessor.