[TIMOB-19035] Android: Fix Ti.UI.SIZE height on Ti.UI.ScrollableView

[garymathews]

• Guard against null height property

TEST CASE

var win = Ti.UI.createWindow({
        backgroundColor: 'white',
        layout: 'vertical'
    }),
    lbl_a = Ti.UI.createLabel({
        text: 'View A',
        height: Ti.UI.SIZE
    }),
    lbl_b = Ti.UI.createLabel({
        text: 'View B',
        height: 100
    }),
    view_a = Ti.UI.createView({
        backgroundColor: 'red',
        height: 100,
        width: '90%'
    }),
    view_b = Ti.UI.createView({
        backgroundColor: 'green',
        height: Ti.UI.SIZE,
        width: '90%'
    }),
    scrollable = Ti.UI.createScrollableView({
        views: [view_b, view_a],
        width: Ti.UI.FILL,
    	height: Ti.UI.SIZE,
    	top: '30dip'
    });

view_a.add(lbl_a);
view_b.add(lbl_b);

win.add(scrollable);
win.open();

JIRA Ticket

[ypbnv]

CR: Pass

[ssjsamir]

FR Passed: Application no longer crashes and can now guard against null height property.

Test Steps

• Downloaded the SDK Build form this PR
• Created a new Titanium project
• Copied the the test case from description
• Ran the application
• Application no longer crashed

Test Environment
Appcelerator Command-Line Interface, version 6.2.2
Google Nexus 6P (7.1.1)
Operating System Name: Mac OS X El Capitan
Operating System Version: 10.11.6
Node.js Version: 6.10.1
Xcode: 8.2
Appcelerator Studio: 4.9.0.201705251638