of building native mobile applications using Java.
*/
public class MyApplication implements ActionListener {
// Enable Toolbar on all Forms by default
Toolbar.setGlobalToolbar(true);
// Pro only feature, uncomment if you have a pro subscription
// Log.bindCrashProtection(true);
Form searchForm = new Form("Sample App");
// Allow scrolling if screen too small or rotated
searchForm.setScrollableY(true);
searchForm.setScrollVisible(true);
searchForm.addCommandListener(this);
_backCommand = new Command("Back");
searchForm.setBackCommand(_backCommand);
GridBagLayout gbl = new GridBagLayout();
GridBagConstraints gbc = new GridBagConstraints();
searchForm.setLayout(gbl);
int y = 0;
int x = 0;
Label searchBy = new Label("Search by");
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = 1;
gbc.gridheight = 1;
gbc.fill = GridBagConstraints.BOTH;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.insets = new Insets(0, 5, 5, 0);
gbl.setConstraints(searchBy, gbc);
searchForm.addComponent(searchBy);
x++;
String[] searchByList = { "Author", "Title"};
_searchBy = new ComboBox((Object[]) searchByList);
_searchBy.setSelectedIndex(0);
_searchBy.addActionListener(this);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.gridheight = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.weightx = 0.1;
gbc.weighty = 0.0;
gbc.insets = new Insets(0, 5, 5, 5);
gbl.setConstraints(_searchBy, gbc);
searchForm.addComponent(_searchBy);
y++;
x = 0;
Label searchFor = new Label("Search For:");
gbc.anchor = GridBagConstraints.SOUTHWEST;
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = 1;
gbc.gridheight = 1;
gbc.fill = GridBagConstraints.BOTH;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.insets = new Insets(0, 5, 10, 0);
gbl.setConstraints(searchFor, gbc);
searchForm.addComponent(searchFor);
x++;
_searchFor = new TextField();
_searchFor.setColumns(8);
_searchFor.setInputMode("abc");
_searchFor.setConstraint(TextField.ANY | TextField.NON_PREDICTIVE);
_searchFor.setDoneListener(this);
_searchFor.putClientProperty("searchField", true);
gbc.anchor = GridBagConstraints.SOUTHWEST;
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = 1;
gbc.gridheight = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.weightx = 0.1;
gbc.weighty = 0.0;
gbc.insets = new Insets(0, 5, 10, 5);
gbl.setConstraints(_searchFor, gbc);
searchForm.addComponent(_searchFor);
y++;
x = 0;
Label sortBy = new Label("Sort By:");
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = 1;
gbc.gridheight = 1;
gbc.fill = GridBagConstraints.BOTH;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.insets = new Insets(0, 5, 0, 0);
gbl.setConstraints(sortBy, gbc);
searchForm.addComponent(sortBy);
x++;
String[] sortByList = { "Author", "Title"};
_sortBy = new ComboBox((Object[]) sortByList);
_sortBy.setSelectedIndex(0);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.gridheight = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.weightx = 0.1;
gbc.weighty = 0.0;
gbc.insets = new Insets(0, 5, 0, 5);
gbl.setConstraints(_sortBy, gbc);
searchForm.addComponent(_sortBy);
y++;
x = 0;
_progress = new InfiniteProgress();
_progress.setVisible(false);
/*
* Put in container, we want this component to be invisible initially.
* If we add it directly when it is hidden, no space is allocated
* and it is never shown.
*/
Container progress = new Container(new FlowLayout());
progress.addComponent(_progress);
gbc.anchor = GridBagConstraints.NORTH;
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.gridheight = 1;
gbc.fill = GridBagConstraints.NONE;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.insets = new Insets(0, 10, 0, 10);
gbl.setConstraints(progress, gbc);
searchForm.addComponent(progress);
y++;
x = 0;
_statusMessage = new Label(" ");
_statusMessage.setPreferredW(500);
Style style = _statusMessage.getStyle();
style.setAlignment(Component.CENTER);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.gridheight = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.insets = new Insets(0, 10, 0, 10);
gbl.setConstraints(_statusMessage, gbc);
searchForm.addComponent(_statusMessage);
y++;
x = 0;
Container buttons = new Container();
buttons.setLayout(new FlowLayout(Component.CENTER));
_scanCommand = new Command("Scan");
Button scanButton = new Button(_scanCommand);
buttons.addComponent(scanButton);
_searchCommand = new Command("Search");
Button searchButton = new Button(_searchCommand);
buttons.addComponent(searchButton);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.gridheight = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.insets = new Insets(0, 10, 10, 10);
gbl.setConstraints(buttons, gbc);
searchForm.addComponent(buttons);
y++;
x = 0;
Label filler = new Label();
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = 1;
gbc.gridheight = 1;
gbc.fill = GridBagConstraints.VERTICAL;
gbc.weightx = 0.0;
gbc.weighty = 0.1;
gbc.insets = new Insets(0, 0, 0, 0);
gbl.setConstraints(filler, gbc);
searchForm.addComponent(filler);
searchForm.show();
if (command == _backCommand) {
stop();
Display.getInstance().exitApplication();
return;
}
Displaying a simple form in preparation for a search. User taps in TextField to give it focus and display the keyboard. The app crashes.
Sample code to reproduce the problem, run app and then tap in the TextField
Using a Microsoft Lumia 640 LTE phone for testing.
`package com.mycompany.myapp;
import com.codename1.components.InfiniteProgress;
import com.codename1.components.ToastBar;
import com.codename1.components.WebBrowser;
import com.codename1.ui.AutoCompleteTextField;
import com.codename1.ui.Button;
import com.codename1.ui.ComboBox;
import com.codename1.ui.Display;
import com.codename1.ui.Form;
import com.codename1.ui.Dialog;
import com.codename1.ui.FontImage;
import com.codename1.ui.Label;
import com.codename1.ui.spinner.Picker;
import com.codename1.ui.plaf.UIManager;
import com.codename1.ui.util.Resources;
import com.codename1.io.Log;
import com.codename1.ui.Command;
import com.codename1.ui.Component;
import com.codename1.ui.Container;
import com.codename1.ui.TextField;
import com.codename1.ui.Toolbar;
import com.codename1.ui.events.ActionEvent;
import com.codename1.ui.events.ActionListener;
import com.codename1.ui.layouts.BorderLayout;
import com.codename1.ui.layouts.FlowLayout;
import com.codename1.ui.layouts.GridBagConstraints;
import com.codename1.ui.layouts.GridBagLayout;
import com.codename1.ui.layouts.Insets;
import com.codename1.ui.plaf.Style;
import java.io.IOException;
import java.util.Vector;
/**
This file was generated by Codename One for the purpose
of building native mobile applications using Java.
*/
public class MyApplication implements ActionListener {
private Form current;
private Resources theme;
private Command _backCommand;
private ComboBox _searchBy;
private TextField _searchFor;
private Button _searchForRedo;
private ComboBox _sortBy;
private InfiniteProgress _progress;
private Label _statusMessage;
private Command _searchCommand;
private Command _scanCommand;
public void init(Object context) {
theme = UIManager.initFirstTheme("/theme");
}
public void start() {
if(current != null){
current.show();
return;
}
}
public void stop() {
current = Display.getInstance().getCurrent();
if(current instanceof Dialog) {
((Dialog)current).dispose();
current = Display.getInstance().getCurrent();
}
}
public void destroy() {
}
public void actionPerformed(ActionEvent actionEvent) {
Command command = actionEvent.getCommand();
}
}
`