Go to the specific tab when backed from a screen












1















How can I go to a specific tab when backed from a screen? Lets say I am in newForm screen and when I touch the back button, I'll go to Home screen. There are 4 tabs in homeScreen and I want to go to 3rd tab as soon as I've backed to home.



Home class



Tabs tabs = new Tabs(Component.BOTTOM);
tabs.addTab("Home", icon, homeContainer);
tabs.addTab("Home1", icon1, home1Container);
tabs.addTab("Home2", icon2, home2Container);
tabs.addTab("Home3", icon3, home3Container);

add(BorderLayout.CENTER, tabs);

Button newForm = new Button("New Form");
newForm.addActionListener(e=>{
new NewForm(res).show();
});


NewForm class:



 Command back = new Command("") {
@Override
public void actionPerformed(ActionEvent ev) {
new Home(res).show();
}
};
.setBackCommand(back);









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    1















    How can I go to a specific tab when backed from a screen? Lets say I am in newForm screen and when I touch the back button, I'll go to Home screen. There are 4 tabs in homeScreen and I want to go to 3rd tab as soon as I've backed to home.



    Home class



    Tabs tabs = new Tabs(Component.BOTTOM);
    tabs.addTab("Home", icon, homeContainer);
    tabs.addTab("Home1", icon1, home1Container);
    tabs.addTab("Home2", icon2, home2Container);
    tabs.addTab("Home3", icon3, home3Container);

    add(BorderLayout.CENTER, tabs);

    Button newForm = new Button("New Form");
    newForm.addActionListener(e=>{
    new NewForm(res).show();
    });


    NewForm class:



     Command back = new Command("") {
    @Override
    public void actionPerformed(ActionEvent ev) {
    new Home(res).show();
    }
    };
    .setBackCommand(back);









    share|improve this question

























      1












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      1






      How can I go to a specific tab when backed from a screen? Lets say I am in newForm screen and when I touch the back button, I'll go to Home screen. There are 4 tabs in homeScreen and I want to go to 3rd tab as soon as I've backed to home.



      Home class



      Tabs tabs = new Tabs(Component.BOTTOM);
      tabs.addTab("Home", icon, homeContainer);
      tabs.addTab("Home1", icon1, home1Container);
      tabs.addTab("Home2", icon2, home2Container);
      tabs.addTab("Home3", icon3, home3Container);

      add(BorderLayout.CENTER, tabs);

      Button newForm = new Button("New Form");
      newForm.addActionListener(e=>{
      new NewForm(res).show();
      });


      NewForm class:



       Command back = new Command("") {
      @Override
      public void actionPerformed(ActionEvent ev) {
      new Home(res).show();
      }
      };
      .setBackCommand(back);









      share|improve this question














      How can I go to a specific tab when backed from a screen? Lets say I am in newForm screen and when I touch the back button, I'll go to Home screen. There are 4 tabs in homeScreen and I want to go to 3rd tab as soon as I've backed to home.



      Home class



      Tabs tabs = new Tabs(Component.BOTTOM);
      tabs.addTab("Home", icon, homeContainer);
      tabs.addTab("Home1", icon1, home1Container);
      tabs.addTab("Home2", icon2, home2Container);
      tabs.addTab("Home3", icon3, home3Container);

      add(BorderLayout.CENTER, tabs);

      Button newForm = new Button("New Form");
      newForm.addActionListener(e=>{
      new NewForm(res).show();
      });


      NewForm class:



       Command back = new Command("") {
      @Override
      public void actionPerformed(ActionEvent ev) {
      new Home(res).show();
      }
      };
      .setBackCommand(back);






      codenameone






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      asked Nov 23 '18 at 10:23









      Amrita SthaAmrita Stha

      7122816




      7122816
























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          I would suggest keeping an instance of the Home form and just using Home.getInstance().showBack(). This will mean that the last selected tab would remain "as is".



          If you want to select a specific index use: tabs.setSelectedIndex(idx, false).



          Notice that the index starts at 0.






          share|improve this answer























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            1 Answer
            1






            active

            oldest

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            active

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            active

            oldest

            votes









            0














            I would suggest keeping an instance of the Home form and just using Home.getInstance().showBack(). This will mean that the last selected tab would remain "as is".



            If you want to select a specific index use: tabs.setSelectedIndex(idx, false).



            Notice that the index starts at 0.






            share|improve this answer




























              0














              I would suggest keeping an instance of the Home form and just using Home.getInstance().showBack(). This will mean that the last selected tab would remain "as is".



              If you want to select a specific index use: tabs.setSelectedIndex(idx, false).



              Notice that the index starts at 0.






              share|improve this answer


























                0












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                0







                I would suggest keeping an instance of the Home form and just using Home.getInstance().showBack(). This will mean that the last selected tab would remain "as is".



                If you want to select a specific index use: tabs.setSelectedIndex(idx, false).



                Notice that the index starts at 0.






                share|improve this answer













                I would suggest keeping an instance of the Home form and just using Home.getInstance().showBack(). This will mean that the last selected tab would remain "as is".



                If you want to select a specific index use: tabs.setSelectedIndex(idx, false).



                Notice that the index starts at 0.







                share|improve this answer












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                answered Nov 24 '18 at 5:07









                Shai AlmogShai Almog

                40.6k52555




                40.6k52555
































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