[TIMOB-17357] Android: Support Material Theme

    var win = Ti.UI.createWindow({
        backgroundColor:'black',
        title: 'Material Theme'
    });
     
    var textField = Ti.UI.createTextField({
      top: '400dp',
      width: 200,
      color: "white"
    });
    var checkbox = Ti.UI.createSwitch({title: 'checkbox', top: '50dp', color: 'white', style: Titanium.UI.Android.SWITCH_STYLE_CHECKBOX});
    win.add(checkbox);
    win.add(textField);
    var picker = Ti.UI.createPicker({
      top:'100dp'
    });
    
    var data = [];
    data[0]=Ti.UI.createPickerRow({title:'Bananas'});
    data[1]=Ti.UI.createPickerRow({title:'Strawberries'});
    data[2]=Ti.UI.createPickerRow({title:'Mangos'});
    data[3]=Ti.UI.createPickerRow({title:'Grapes'});
    
    picker.add(data);
    picker.selectionIndicator = true;
    
    win.add(picker);
    win.open();
    

        <android xmlns:android="http://schemas.android.com/apk/res/android">
            <manifest>
                <application android:theme="@style/Theme.AppCompat"/>
            </manifest>
        </android>
    

    --------------------------- /platform/android/res/values/custom_theme.xml ---------------------------
    <?xml version="1.0" encoding="utf-8"?>
    <resources>
    <style name="materialTheme" parent="@style/Theme.AppCompat">
        <item name="colorPrimary">#0000FF</item>
        <item name="colorPrimaryDark">#FF0000</item>
        <item name="colorAccent">#00FF00</item>
    </style>
    </resources>
    

    --------------------------- app.js ---------------------------
    var win = Ti.UI.createWindow({
        backgroundColor:'black',
        title: 'Material Theme',
        theme: "materialTheme",
        layout: "vertical"
    });
     
    var textField = Ti.UI.createTextField({
      width: 200,
      color: "white"
    });
    
    var checkbox = Ti.UI.createSwitch({title: 'checkbox', color: 'white', style: Titanium.UI.Android.SWITCH_STYLE_CHECKBOX});
    
    var s = Ti.UI.createSwitch({
    	style: Titanium.UI.Android.SWITCH_STYLE_TOGGLEBUTTON,
    	titleOn:'Enabled',
      	titleOff:'Disabled'
    });
    
    var s_old = Ti.UI.createSwitch({
    	style: Titanium.UI.Android.SWITCH_STYLE_TOGGLEBUTTON_OLD,
    	titleOn:'Enabled',
      	titleOff:'Disabled'
    });
    
    var picker = Ti.UI.createPicker();
     
    var data = [];
    data[0]=Ti.UI.createPickerRow({title:'Bananas'});
    data[1]=Ti.UI.createPickerRow({title:'Strawberries'});
    data[2]=Ti.UI.createPickerRow({title:'Mangos'});
    data[3]=Ti.UI.createPickerRow({title:'Grapes'});
     
    picker.add(data);
    picker.selectionIndicator = true;
     
    textField.addEventListener("postlayout", function(e){
    	Ti.API.info("*************** postlayout: text field");
    });
    
    checkbox.addEventListener("postlayout", function(e){
    	Ti.API.info("*************** postlayout: checkbox");
    });
    
    s.addEventListener("postlayout", function(e){
    	Ti.API.info("*************** postlayout: switch");
    });
    
    s_old.addEventListener("postlayout", function(e){
    	Ti.API.info("*************** postlayout: toggle button");
    });
    
    picker.addEventListener("postlayout", function(e){
    	Ti.API.info("*************** postlayout: picker");
    });
    
    win.add(textField);
    win.add(checkbox);
    win.add(s);
    win.add(s_old);
    win.add(picker);
    win.open();