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plurals

PO
primarykey
Id
5872333
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2011-05-03T16:02:11.457
FavoriteCount
0
LastActivityDate
2011-05-03T18:36:12.113
LastEditDate
2011-05-03T18:36:12.113
LastEditorUserId
247013
OwnerUserId
247013
ParentId
5871362
PostTypeId
2
Score
0
ViewCount
0
LastEditorDisplayName
text
Body
<p>Use a callback pattern:</p> <pre><code>class TitleScreen extends MainScreen { private ButtonField myButton; public TitleScreen() { super(); setTitle("Click the button:"); // TODO change the label of this button (see below) myButton = new ButtonField("Show the list", ButtonField.CONSUME_CLICK); myButton.setChangeListener(new FieldChangeListener() { public void fieldChanged(Field field, int context) { OnItemSelectedCallback callback = new OnItemSelectedCallback() { public void onItemSelected(String label) { TitleScreen.this.onItemSelected(label); } }; MyScreen myScreen = new MyScreen(callback); UiApplication.getUiApplication().pushScreen(myScreen); } }); add(myButton); } private void onItemSelected(String label) { // this will be called when a menu item is executed on the MyScreen // e.g. you can call smth like: myButton.setLabel(label); } } interface OnItemSelectedCallback { void onItemSelected(String label); } class MyScreen extends MainScreen { ObjectListField myList = new ObjectListField(); private final OnItemSelectedCallback onItemSelectedCallback; public MyScreen(OnItemSelectedCallback onItemSelectedCallback) { setTitle("Select an item below:"); this.onItemSelectedCallback = onItemSelectedCallback; myList.set(new String[] { "Item 1", "Item 2", "Item 3", "Item 4", }); add(myList); addMenuItem(myMenu); } private final MenuItem myMenu = new MenuItem("Select item", 0, 0) { public void run() { int index = myList.getSelectedIndex(); if (index < 0) return; String item = (String) myList.get(myList, index); Status.show("Selected: " + item); // TODO how to return to the previous screen here? // TODO how to call myButton.setLabel(item) here? // notify the parent screen onItemSelectedCallback.onItemSelected(item); // close the current screen UiApplication.getUiApplication().popScreen(MyScreen.this); } }; } </code></pre>
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Title
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1. This table or related slice is empty.
PostParentId
1. POBlackberry: select item in a list, return to previous screen
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  PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USVit Khudenko
UserOwnerUserId
1. USVit Khudenko
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PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. POBlackberry: select item in a list, return to previous screen
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  PTQuestion
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1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
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1. This table or related slice is empty.

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