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MIT官方已升级至2.73版本，中文网待测试并升级相关特性 - App Inventor 2 ...
...2.appinventor.mit.edu（版本 2.73u）直接下载。
更改：
为 ListView 组件实现“提示”属性，并全面提高其性能。
在 ChatBot 组件中添加下拉菜单，用于选择不同的受支持提供商和模型。
修改 ChatBot 系统属性以使用更大的文本区域...
Why does ContentResolver.requestSync not trigger a sync?
...hat content uri to update, and in turn requery and invalidate and redraw a ListView, etc... It's very magical, the database changes and your ListView just updates automatically. Awesome. Also, when the database changes, Android will request Sync for you, even outside your normal schedule, so that...
MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术
...窗口被切分：左视图由CTreeView 的派生类管理，右视图由CListView 的派生类CMyListView（其为风格为LVS_REPORT）管理,我想为右视图添加打印和打印预览，我在MyListView.cpp中添加了
ON_COMMAND(ID_FILE_PRINT,CListView::OnFilePrint)
ON_COMMAND...
Yii2 data provider default sorting
... (index) and you need set default sorting your controller for GridView, or ListView, or more...
Example
public function actionIndex()
{
$searchModel = new NewsSearch();
$dataProvider = $searchModel->search(Yii::$app->request->queryParams);
// set default sorting
$dataProvid...
Why not use always android:configChanges=“keyboardHidden|orientation”?
..., then I don't need the choice.
Take for instance an app where you have a ListView, and upon clicking a ListItem you want to be shown a detailed view for that item. In landscape you would od this by dividing the screen in two, having the ListView on the left and the detailed view on the right. In P...
Your build failed due to an error in the AAPT stage, not because of an...
...可以用更好的代码来完美；许多标签或文本框，而单个 ListView 会更好。项目文件有某种形式的损坏项目文件名包含不受支持的字符构建过程被防病毒应用程序中断（可能导致文件损坏）过程没有被赋予唯一名称该项目正在使用...
How to get the selected index of a RadioGroup in Android
...2, the index of the selected radiobutton in the radiogroup. this is not a listview.
– John Boker
Jun 22 '11 at 13:17
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Android : difference between invisible and gone?
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For ListView or GridView there is an another difference, when visibility initially set to
INVISIBLE:
Adapter's getView() function called
GONE:
Adapter's getView() function didn't call, thus preventing views to load, wh...
Animate visibility modes, GONE and VISIBLE
...
You probably want to use an ExpandableListView, a special ListView that allows you to open and close groups.
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setBackground vs setBackgroundDrawable (Android)
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What if I have to set background repeatedly, say in listview? setBackgroundResource(int) accepts resource id, therefore it has to inflate the view each time in order to set the background. I do not want such behaviour, assuming I already have inflated Drawable. Am I missing so...