1. #1
    Sencha User
    Join Date
    Mar 2012
    Posts
    6
    Vote Rating
    0
    sunhohong is on a distinguished road

      0  

    Default Answered: How can I use singleton component?

    Answered: How can I use singleton component?


    The pop() function in Ext.navigation.View seems to destroy the component that is poped.
    I want to reuse the component(without initialize), but it always calls initialize function.

    How can I do that?

    Code:
    Ext.define('Test.view.InfoPanel', {
      extend: 'Ext.Panel',
      xtype: 'infopanel',
      // singleton: true,  // this option causes problems because non-singleton components are in initialize function.
    
      initialize: function() {
        console.log('InfoPanel has been initialized.');
      }
      ...
    });
    
    // this code always calls initialize function.
    mainview.push({ xtype: 'infopanel' });

  2. You can set autoDestroy to false on the item. Then if you have singleton set to true it will create the component right away and you can push the class name, not xtype.

  3. #2
    Sencha - Senior Forum Manager mitchellsimoens's Avatar
    Join Date
    Mar 2007
    Location
    Gainesville, FL
    Posts
    37,548
    Vote Rating
    873
    Answers
    3567
    mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute mitchellsimoens has a reputation beyond repute

      0  

    Default


    You can set autoDestroy to false on the item. Then if you have singleton set to true it will create the component right away and you can push the class name, not xtype.
    Mitchell Simoens @SenchaMitch
    Sencha Inc, Senior Forum Manager
    ________________
    Check out my GitHub, lots of nice things for Ext JS 4 and Sencha Touch 2
    https://github.com/mitchellsimoens

    Think my support is good? Get more personalized support via a support subscription. https://www.sencha.com/store/

    Need more help with your app? Hire Sencha Services services@sencha.com

    Want to learn Sencha Touch 2? Check out Sencha Touch in Action that is in print!

    When posting code, please use BBCode's CODE tags.

Thread Participants: 1

Tags for this Thread