Java Development

[nitinverma274]

Hello Guys,

Plz tell me that,

How can i call a another screen form One screen On clicking a Button.

[simon_hain]

you display a screen using UiApplication.getUiApplication().pushScreen(newScreen)

you can create a button using CONSUME_CLICK and react using a fieldchangelistener, or you can handle navigationclick etc.

[TobiasReaper · Accepted solution]

And since you are a beginner, here's a sample code of what Simon described above (not compiled or tested but should give you an idea)

import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.ButtonField;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.container.MainScreen;

public class FirstScreen extends MainScreen implements FieldChangeListener {
	ButtonField theButton;

	public FirstScreen() {
		add(new LabelField("First Screen"));

		theButton = new ButtonField("New Screen", ButtonField.CONSUME_CLICK);

		theButton.setChangeListener(this);

		add(theButton);
	}

	public void fieldChanged(Field field, int context) {

		if (field == theButton) {
		UiApplication.getUiApplication().pushScreen(new SecondScreen());
		}

	}

	public class SecondScreen extends MainScreen {

		public SecondScreen() {
			add(new LabelField("Second Screen"));
		}
	}
}

[nitinverma274]

Thank u TobiasReaper,

My Problem is Solved.

[TobiasReaper]

Glad to be of assistance mate. Enjoy coding.

[mylestan]

Perfect, thanks for the code example!

[hardikhamar]

thanks i use ur code and i solve my problem 

 and i also click on kudo of u

[georgiezzzy]

Hello Sir ,

I came accross your code and tried to run it on the 9900 simulator and for some reason it doesnt pick up the code. as in the application does not appear on the main menu screen so i can not launch it at all.

do you no why.. id really appriciate the help

[peter_strange]

As previously suggested, don't post on Solved Threads, start you own Thread.  And can I also suggest that you don't make multiple posts for the same problem. 

As far as I can tell, your problem has been solved too:

http://supportforums.blackberry.com/t5/Java-Development/APPLICATION-will-not-appear-on-main-menu-of-...