Troubleshooting guide

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BlackBerry Java Development Environment Development Guide

Create an option. 1. Create an instance of a RadioButtonGroup().

RadioButtonGroup rbGroup = new RadioButtonGroup();

2. Create an instance of a RadioButtonField for each option you want to make available to the

BlackBerry® device user.

RadioButtonField rbField = new RadioButtonField("First field");

RadioButtonField rbField2 = new RadioButtonField("Second field");

3. Invoke RadioButtonGroup.add() to add the RadioButtonFields to the

RadioButonGroup and make sure the BlackBerry device user can select only one option at a

time.

rbGroup.add(rbField);

rbGroup.add(rbField2);

Create a date field. > Create an instance of a DateField, providing the value returned by

System.currentTimeMillis() as a parameter to return the current time.

DateField dateField = new DateField("Date: ",

System.currentTimeMillis(), DateField.DATE_TIME);

Create a read-only field that you can

format using different fonts and styles.

> Create an instance of a RichTextField .

RichTextField rich = new RichTextField("RichTextField");

Create an editable text field that

contains no default formatting but

accepts filters.

> Create an instance of a BasicEditField.

BasicEditField bf = new BasicEditField("BasicEditField: ", "", 10,

EditField.FILTER_UPPERCASE);

Create an editable text field that lets

BlackBerry device users access special

characters.

> Create an instance of an EditField.

EditField edit = new EditField("EditField: ", "", 10,

EditField.FILTER_DEFAULT);

Create a password field. > Create an instance of a PasswordEditField.

For example, the following instance uses a constructor that lets you provide a default initial

value for the

PasswordEditField.

PasswordEditField pwd = new PasswordEditField("PasswordEditField: ",

"");

Create an AutoText edit field. > Create an instance of an AutoTextEditField.

AutoTextEditField autoT = new AutoTextEditField("AutoTextEditField: ",

"");

Some filters render some AutoText entries ineffective. For example, FILTER_LOWERCASE

renders an AutoText entry that contains capitalization ineffective.

Create a field that displays a progress

bar for the numbers that the BlackBerry

device user selects.

> Create an instance of a GaugeField.

GaugeField percentGauge = new GaugeField("Percent: ", 1, 100, 29,

GaugeField.PERCENT)

Create a text label. > Create an instance of a LableField to add a text label to a screen.

LabelField title = new LabelField("UI Component Sample",

LabelField.ELLIPSIS));

Task Steps