Java/J2ME/RadioButton
List RadioButton
<source lang="java">
//jad file (please verify the jar size) /* MIDlet-Name: ListRadioButtons MIDlet-Version: 1.0 MIDlet-Vendor: MyCompany MIDlet-Jar-URL: ListRadioButtons.jar MIDlet-1: ListRadioButtons, , ListRadioButtons MicroEdition-Configuration: CLDC-1.0 MicroEdition-Profile: MIDP-1.0 MIDlet-JAR-SIZE: 100
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import javax.microedition.lcdui.Alert; import javax.microedition.lcdui.AlertType; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.List; import javax.microedition.midlet.MIDlet; public class ListRadioButtons extends MIDlet implements CommandListener {
private Display display; private Command exit = new Command("Exit", Command.EXIT, 1); private Command submit = new Command("Submit", Command.SCREEN, 2); private List list = new List("Select one", List.EXCLUSIVE); public ListRadioButtons() { display = Display.getDisplay(this); list.append("Male", null); list.append("Female", null); list.addCommand(exit); list.addCommand(submit); list.setCommandListener(this); } public void startApp() { display.setCurrent(list); } public void pauseApp() { } public void destroyApp(boolean unconditional) { } public void commandAction(Command command, Displayable Displayable) { if (command == submit) { Alert alert = new Alert("Choice", list.getString(list.getSelectedIndex()), null, null); alert.setTimeout(Alert.FOREVER); alert.setType(AlertType.INFO); display.setCurrent(alert); list.removeCommand(submit); } else if (command == exit) { destroyApp(false); notifyDestroyed(); } }
}
</source>
RadioButton Demo
<source lang="java">
//jad file (please verify the jar size) /* MIDlet-Name: RadioButtonsMIDlet MIDlet-Version: 1.0 MIDlet-Vendor: MyCompany MIDlet-Jar-URL: RadioButtonsMIDlet.jar MIDlet-1: RadioButtonsMIDlet, , RadioButtonsMIDlet MicroEdition-Configuration: CLDC-1.0 MicroEdition-Profile: MIDP-1.0 MIDlet-JAR-SIZE: 100
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import javax.microedition.lcdui.Choice; import javax.microedition.lcdui.ChoiceGroup; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Form; import javax.microedition.lcdui.StringItem; import javax.microedition.midlet.MIDlet; public class RadioButtonsMIDlet extends MIDlet implements CommandListener {
private Display display; private Form form = new Form("Gender"); private Command exit = new Command("Exit", Command.EXIT, 1); private Command process = new Command("Process", Command.SCREEN, 2); private ChoiceGroup gender = new ChoiceGroup("Enter Gender", Choice.EXCLUSIVE); private int currentIndex; private int genderIndex; public RadioButtonsMIDlet() { display = Display.getDisplay(this); gender.append("Female", null); currentIndex = gender.append("Male ", null); gender.setSelectedIndex(currentIndex, true); genderIndex = form.append(gender); form.addCommand(exit); form.addCommand(process); form.setCommandListener(this); } public void startApp() { display.setCurrent(form); } public void pauseApp() { } public void destroyApp(boolean unconditional) { } public void commandAction(Command command, Displayable displayable) { if (command == exit) { destroyApp(false); notifyDestroyed(); } else if (command == process) { currentIndex = gender.getSelectedIndex(); StringItem message = new StringItem("Gender: ", gender.getString(currentIndex)); form.append(message); form.delete(genderIndex); form.removeCommand(process); } }
}
</source>
RadioButtons 2
<source lang="java">
//jad file /* MIDlet-Name: RadioButtons1 MIDlet-Version: 1.0 MIDlet-Vendor: MyCompany MIDlet-Jar-URL: RadioButtons1.jar MIDlet-1: RadioButtons1, , RadioButtons1 MicroEdition-Configuration: CLDC-1.0 MicroEdition-Profile: MIDP-1.0 MIDlet-JAR-SIZE: 100
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import javax.microedition.lcdui.Choice; import javax.microedition.lcdui.ChoiceGroup; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Form; import javax.microedition.lcdui.Item; import javax.microedition.lcdui.ItemStateListener; import javax.microedition.lcdui.StringItem; import javax.microedition.midlet.MIDlet; public class RadioButtons1 extends MIDlet implements ItemStateListener, CommandListener {
private Display display; private Form form = new Form(""); private Command exit = new Command("Exit", Command.EXIT, 1); private ChoiceGroup radioButtons = new ChoiceGroup("Select Your Color", Choice.EXCLUSIVE); private int defaultIndex; public RadioButtons1() { display = Display.getDisplay(this); radioButtons.append("Red", null); radioButtons.append("White", null); radioButtons.append("Blue", null); radioButtons.append("Green", null); defaultIndex = radioButtons.append("All", null); radioButtons.setSelectedIndex(defaultIndex, true); form.addCommand(exit); form.setCommandListener(this); form.setItemStateListener(this); } public void startApp() { display.setCurrent(form); } public void pauseApp() { } public void destroyApp(boolean unconditional) { } public void commandAction(Command command, Displayable displayable) { if (command == exit) { destroyApp(true); notifyDestroyed(); } } public void itemStateChanged(Item item) { if (item == radioButtons) { StringItem msg = new StringItem("Your color is ", radioButtons.getString(radioButtons .getSelectedIndex())); form.append(msg); } }
}
</source>