[TIMOB-18062] iOS: AttributedString Parity with Android

var win = Titanium.UI.createWindow({
    backgroundColor: '#ddd',
});
 
win.open();
 
var text =  'Bacon ipsum dolor Appcelerator Titanium rocks! sit amet fatback leberkas salami sausage tongue strip steak.';
 
var attr = Ti.UI.createAttributedString({
    text: text,
    attributes: [
        //font
        {
            type: Ti.UI.ATTRIBUTE_FONT,
            value: {font:{fontSize:50,fontFamily:'Helvetica Neue'}},
            range: [0, text.length]
        },
        // Underlines text
        {
            type: Ti.UI.ATTRIBUTE_UNDERLINES_STYLE,
            value: Ti.UI.ATTRIBUTE_UNDERLINE_STYLE_SINGLE, //only iOS needs this, android ignores.
            range: [0, text.length]
        },
        // Sets a background color
        {
            type: Ti.UI.ATTRIBUTE_BACKGROUND_COLOR,
            value: "red",
            range: [text.indexOf('Appcelerator'), ('Appcelerator').length]
        },
        {
            type: Ti.UI.ATTRIBUTE_BACKGROUND_COLOR,
            value: "blue",
            range: [text.indexOf('Titanium'), ('Titanium').length]
        },
        {
            type: Ti.UI.ATTRIBUTE_BACKGROUND_COLOR,
            value: "yellow",
            range: [text.indexOf('rocks!'), ('rocks!').length]
        },
        // Sets a foreground color
        {
            type: Ti.UI.ATTRIBUTE_FOREGROUND_COLOR,
            value: "orange",
            range: [0,  text.length]
        },
        {
            type: Ti.UI.ATTRIBUTE_FOREGROUND_COLOR,
            value: "black",
            range: [text.indexOf('rocks!'), ('rocks!').length]
        },
        {
            type: Ti.UI.ATTRIBUTE_LINK,//ignored in iOS, label doesn't support attribute link. Use textArea instead. 
            value: "http://www.appcelerator.com",
            range: [text.indexOf('Appcelerator'), ('Appcelerator').length]
        }
    ]
});
 
var label = Titanium.UI.createLabel({
    left: 20,
    right: 20,
    height: Titanium.UI.SIZE,
    attributedString: attr
});
 
var changeStyle = Titanium.UI.createButton({
    bottom:200,
    title: "ChangeStyle"
});
 
win.add(label);
win.add(changeStyle);
 
var attr2 = Titanium.UI.createAttributedString({
    text: text,
    attributes: [
        //font
        {
            type: Ti.UI.ATTRIBUTE_FONT,
            value: {font:{fontSize:30,fontFamily:'Helvetica Neue'}},
            range: [0, text.length]
        },
        // Underlines text
        {
            type: Ti.UI.ATTRIBUTE_UNDERLINES_STYLE,
            value: Ti.UI.ATTRIBUTE_UNDERLINE_STYLE_SINGLE, //only iOS needs this, android ignores.
            range: [0, text.length]
        },
        // Sets a background color
        {
            type: Ti.UI.ATTRIBUTE_BACKGROUND_COLOR,
            value: "green",
            range: [text.indexOf('Appcelerator'), ('Appcelerator').length]
        },
        {
            type: Ti.UI.ATTRIBUTE_BACKGROUND_COLOR,
            value: "red",
            range: [text.indexOf('Titanium'), ('Titanium').length]
        },
        {
            type: Ti.UI.ATTRIBUTE_BACKGROUND_COLOR,
            value: "blue",
            range: [text.indexOf('rocks!'), ('rocks!').length]
        },
        // Sets a foreground color
        {
            type: Ti.UI.ATTRIBUTE_FOREGROUND_COLOR,
            value: "black",
            range: [0,  text.length]
        },
        {
            type: Ti.UI.ATTRIBUTE_FOREGROUND_COLOR,
            value: "red",
            range: [text.indexOf('rocks!'), ('rocks!').length]
        },
        // Sets strike through
        {
            type: Ti.UI.ATTRIBUTE_STRIKETHROUGH_STYLE,
            value: Titanium.UI.ATTRIBUTE_UNDERLINE_STYLE_SINGLE, //only iOS needs this, android ignores.
            range: [text.indexOf('tongue'), ('tongue').length]
        },
        {
            type: Ti.UI.ATTRIBUTE_LINK, //ignored in iOS, label doesn't support attribute link. Use textArea instead. 
            value: "http://www.appcelerator.com",
            range: [text.indexOf('Appcelerator'), ('Appcelerator').length]
        }
    ]
});
 
changeStyle.addEventListener('click', function(){
    label.attributedString=attr2});