[TIMOB-17792] Android: Fix context passed to timePicker dialog builder.

[ypbnv]

JIRA: https://jira.appcelerator.org/browse/TIMOB-17792

Test
Described in the JIRA ticket

[jquick-axway]

Approved

[jquick-axway]

@lokeshchdhry, I recommend that you run your Android intent test with the DateTimePicker dialog to see if it's actually grabbing the current activity when multiple tasks exist.

[ssjsamir]

FR Passed: Was able to sett the timePicker dialog box when clicking on the "Show Time Picker Dialog" button from the following test case:

var win = Ti.UI.createWindow({
    exitOnClose: true
});
 
var picker = Ti.UI.createPicker({
    type: Ti.UI.PICKER_TYPE_TIME
});
 
var btn = Ti.UI.createButton({
    title : 'Show time picker dialog'
});
 
win.add( btn );
win.open( );
 
btn.addEventListener( 'singletap', function( ) {
    picker.showTimePickerDialog({
        callback: function( e ) {
            if ( e.cancel ) {
                Ti.API.info( 'User canceled dialog' );
            } else {
                Ti.API.info( 'User selected time: ' + e.value );
            }
        }
    });
});

Test steps

• Downloaded the SDK Build form this PR
• Created a new Titanium project
• Copied the the test case from description
• Ran the application
• Pressed the Show TIme Picker Dialog button
• Saw the time picker
• Was able to set the time and press ok
• Console showed select time
  [INFO] : User selected time: Tue Jun 13 2017 05:07:55 GMT-0700 (PDT)

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