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POPopUpScreen Blocking events in Blackberry
 

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    <p>I am using a popup screen to show the update status of background uploading processes. I want to cancel the uploading in between. I am trying to achieve this either by addin a button to the pop up screen or with the physical backbutton of the device. But it seems that none of the events generated are caught by the app.</p> <p>Here is how I am creating a popup screen and displaying it t user</p> <pre><code> DialogFieldManager manager = new DialogFieldManager(); //DialogFieldManager manager = (DialogFieldManager)getDelegate(); statusUpdate = new LabelField("Please Wait..."); manager.addCustomField(statusUpdate); _gaugeField = new GaugeField("", 0, 100, 0, GaugeField.PERCENT); manager.addCustomField(_gaugeField); cncl_Btn = new ButtonField("Cancel",ButtonField.CONSUME_CLICK | ButtonField.FIELD_HCENTER | ButtonField.NEVER_DIRTY); manager.addCustomField(cncl_Btn); cancelFlag = 0; cncl_Btn.setChangeListener(new FieldChangeListener() { public void fieldChanged(Field field, int context) { // Auto-generated method stub UiApplication.getUiApplication().invokeLater(new Runnable() { public void run() { cancelFlag = 1; //onClose();//as this method exited from application // close();//this method gave me IllegalStateException } }); } }); //BackUpScreen.this.addMenuItem(_viewItem); popup = new PopupScreen(manager); UiApplication.getUiApplication().pushScreen(popup); </code></pre> <p>Soon afther this line I am calling the actual upload process in a thread like this</p> <pre><code>UiApplication.getUiApplication().invokeLater(new Runnable() { public void run() { //.... do other stuff I wanted done... backUpThread = Thread.currentThread(); uploadItems(); } }); </code></pre> <p>But if I press the cancel button inside the popup screen its not responding. I checked this by adding a breakpoint inside the fieldchange listener method of button.</p> <p>How can I do this in blackberry?</p>
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