GIFEncodedImage in BlackBerry OS7

I had a problem on BlackBerry JRE 7.0 when I tried to display custom dialog box. It show ClasscastException on a Simulator screen when I debugged my code I found that it carshed when I try to use GIFEncodedImage and this is my code:

package com.codemobiles.bb.thaidict;

import com.codemobiles.bb.thaidict.custom.field.AnimatedGIFField;

import net.rim.device.api.system.GIFEncodedImage;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.Keypad;
import net.rim.device.api.ui.Manager;
import net.rim.device.api.ui.component.ButtonField;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.container.HorizontalFieldManager;
import net.rim.device.api.ui.container.PopupScreen;
import net.rim.device.api.ui.container.VerticalFieldManager;

public class LoadingScreen extends PopupScreen implements FieldChangeListener{

  protected boolean keyChar(char c, int status, int time) {
    // TODO Auto-generated method stub
    if (c == Keypad.KEY_ESCAPE) {
      close();
      return true;
    }
    return true;
  }

  public ButtonField dissmissButton;
  public LoadingScreen(VerticalFieldManager delegate){
    super(delegate);
    HorizontalFieldManager loadingManager = new  HorizontalFieldManager(Manager.FIELD_HCENTER);
    GIFEncodedImage image = (GIFEncodedImage) GIFEncodedImage.getEncodedImageResource("img/load.gif");
    AnimatedGIFField gifField = new AnimatedGIFField(image,Field.FIELD_HCENTER);
    LabelField loadingLabel = new LabelField("Being Translated..");
    dissmissButton = new ButtonField("Cancel",Field.FIELD_HCENTER);
    gifField.setMargin(4, 10, 0, 0);
    loadingManager.setMargin(0, 0, 7, 0);

    loadingManager.add(gifField);
    loadingManager.add(loadingLabel);
    add(loadingManager);
    add(dissmissButton);
    dissmissButton.setChangeListener(this);
  }
  // TODO Auto-generated constructor stub}

  public void fieldChanged(Field field, int context) {
    // TODO Auto-generated method stub
    if(field == dissmissButton){
      close();
    }
  }

}

He carshed at this line:

GIFEncodedImage image = (GIFEncodedImage) GIFEncodedImage.getEncodedImageResource("img/load.gif");

This code is very well working on BlackBerry OS 5-6.

Does anyone know about this problem and how to fix it?

Thank you

Concerning

Rename the GIF file in the resource with the extension .agif.

It works in my code. Try this

Tags: BlackBerry Developers

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