Titanium appcelerator : window focus event not triggered when returning from other window

Question

I have recently started development with titanium appcelerator for developing Android application. And got stuck in a problem that seems to be very minor issues for other who are well versed with Titanium but it have created a headache for me being a beginner.

I have two window named main and subwindow.On button click i am redirected to subwindow from main window. Now whenever I am pressing back button on emulator from subwindow. I have written logic for closing current window i.e subwindow so that I can view main window. That works fine even subwindow closes successfully and even I can view main window. But now if I am trying to click button in main window that doesn't happen.

Even I tried to catch focus event in main window that happens when application is initially loaded but when i am in subwindow and closing subwindow, file focus event is not triggered in main window.

HERE GOES MY CODE

APP.JS

var win1 = Titanium.UI.createWindow({  
    backgroundColor:'black'
});

var btngo=Ti.UI.createButton({
    title : "Go !!!!",
    top : "30%"
});

var lbltitle=Ti.UI.createLabel({
    text : "This is home page",
    font : {fontSize : "20%"} ,
    top : "20%",
    color : 'white'
});

//Event listener for adding clicking event
btngo.addEventListener('click',function(e){
    var nextwindow=Ti.UI.createWindow({
        url : "window.js"   
    });
    nextwindow.open();
});
win1.addEventListener('focus',function(e)
{
    alert("main window focused");
});
win1.addEventListener('android:back', function (e) 
{
  win1.close();
});
win1.add(lbltitle);
win1.add(btngo);
win1.open();

WINDOW.JS

var childwindow=Ti.UI.createWindow({
    backgroundColor : "white"
});


var btnhome=Ti.UI.createButton({
    title : "HOME PAGE"
});


var lbltitle=Ti.UI.createLabel({
    text : "This is child window",
    font : {fontSize : "20%"} ,
    top : "20%",
    color : 'white'
});
//For adding event listener for detecting click on home page button
btnhome.addEventListener('click',function(e){
     childwindow.close();   
});

//Adding event listener for detcting back button click in android 
childwindow.addEventListener('android:back', function (e) {
  childwindow.close();
});

childwindow.add(lbltitle);
childwindow.add(btnhome);
childwindow.open();

Hope that I would get solution to my problem as soon as possible.

Answer 1

You're creating an opening another window inside the window.js. Probably this is the problem. Try changing your window.js file as follows

var childwindow=Ti.UI.currentWindow;
childwindow.backgroundColor = 'white'; //You may specify the same while creating the window
var btnhome=Ti.UI.createButton({
    title : "HOME PAGE"
});


var lbltitle=Ti.UI.createLabel({
    text : "This is child window",
    font : {fontSize : "20%"} ,
    top : "20%",
    color : 'white'
});
//For adding event listener for detecting click on home page button
btnhome.addEventListener('click',function(e){
     childwindow.close();   
});

//Adding event listener for detcting back button click in android 
childwindow.addEventListener('android:back', function (e) {
  childwindow.close();
});

childwindow.add(lbltitle);
childwindow.add(btnhome);

Hope this will do the trick :)