Use RootPanel to Load New Page : RootPanel « GWT « Java

1. Java
2. GWT
3. RootPanel

Use RootPanel to Load New Page

package com.java2s.gwt.client;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.Grid;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.PasswordTextBox;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;

public class GWTClient implements EntryPoint{
  public void onModuleLoad() {
    loadLoginView();
  }

  private void loadLoginView() {
    final Label loginPrompt = new Label("login");
    final Grid grid = new Grid(3, 2);
    final Label namePrompt = new Label("name");
    final TextBox nameTextbox = new TextBox();
    final Label passwordPrompt = new Label("password");
    final PasswordTextBox passwordTextbox = new PasswordTextBox();
    final Button button = new Button("Login");

    button.addClickListener(new ClickListener() {
      public void onClick(Widget sender) {
        loadWelcomeView();
      }
    });

    button.addClickListener(new ClickListener() {
      public void onClick(Widget sender) {
        Window.alert("New page loaded");
      }
    });

    loginPrompt.addStyleName("loginPrompt");
    nameTextbox.addStyleName("nameField");
    passwordTextbox.addStyleName("passwordField");

    grid.setWidget(0, 0, namePrompt);
    grid.setWidget(0, 1, nameTextbox);

    grid.setWidget(1, 0, passwordPrompt);
    grid.setWidget(1, 1, passwordTextbox);

    grid.setWidget(2, 1, button);
    
    RootPanel.get().clear();
    RootPanel.get().add(loginPrompt);
    RootPanel.get().add(grid);
  }

  private void loadWelcomeView() {
    final Label welcomeMsg = new Label("welcome");
    welcomeMsg.addStyleName("welcomeMsg");
    RootPanel.get().clear();
    RootPanel.get().add(welcomeMsg);
  }
}

           
       

GWT-RootPaneLoadNewPage.zip( 3 k)

Related examples in the same category

1.

Add two controls to RootPanel