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POGet field value from PopupScreen back to MainScreen in Blackberry
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  1. POGet field value from PopupScreen back to MainScreen in Blackberry
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    copied!<p>Now i have a MyScreen which extends from MainScreen containing a button. When the button clicked, it will show the PopupScreen containing list of RadioButtonFields, OK and Cancel buttons. My question is how to get RadioButtonField value from PopupScreen back to MyScreen.</p> <p>Please help me in this case.</p> <p>Thanks</p> <hr> <p>Below is my code</p> <p><strong>MyScreen.java</strong></p> <pre><code>public class MyScreen extends MainScreen{ private int currentValue = 0; public MyScreen() { LabelField lblField = new LabelField(); lblField.setText("Current Value = " + currentValue); ButtonField btnPopup = new ButtonField("Show Popup"); btnPopup.setChangeListener(new FieldChangeListener() { public void fieldChanged(Field field, int context) { UiApplication.getUiApplication().pushScreen(new MyPopupScreen()); } }); add(lblField); add(btnPopup); } } </code></pre> <p><strong>MyPopupScreen</strong></p> <pre><code>public class MyPopupScreen extends PopupScreen implements FieldChangeListener { private int currentValue = -1; public MyPopupScreen() { super(new VerticalFieldManager(VerticalFieldManager.VERTICAL_SCROLL|VerticalFieldManager.VERTICAL_SCROLLBAR), Field.FOCUSABLE ); add(new LabelField("Select Chart Type")); RadioButtonGroup radioGroup = new RadioButtonGroup(); for (int i = 0; i &lt; 10; i++) { RadioButtonField radio = new RadioButtonField("Option no. " + i, radioGroup, false); radio.setChangeListener(this); add(radio); } ButtonField cancelBtn = new ButtonField("Close"); ButtonField okBtn = new ButtonField("OK"); add(okBtn); add(cancelBtn); cancelBtn.setChangeListener(new FieldChangeListener() { public void fieldChanged(Field field, int context) { UiApplication.getUiApplication().popScreen(); } }); okBtn.setChangeListener(new FieldChangeListener() { public void fieldChanged(Field field, int context) { //How to get radio value or index value to pass back to MyScreen } }); } public void fieldChanged(Field field, int context) { if (field instanceof RadioButtonField) { RadioButtonField radio = (RadioButtonField) field; currentValue = radio.getIndex(); } } } </code></pre>
 

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