长按文档提供程序

Question

我想知道如何在API 19 +

的DocumentsProvider中听取长时间的点击

目前如果我在其上发布它会正常点击，或者如果我在刷掉项目后释放则取消

这是我想要触发的代码

//finish document provider returning folder

我必须将我的代码中的哪一个插入或是另一个

public class LocalStorageProvider extends DocumentsProvider {

@Override
public Cursor queryRoots(final String[] projection) throws FileNotFoundException {}

@Override
public AssetFileDescriptor openDocumentThumbnail(final String documentId, 
final Point sizeHint,
        final CancellationSignal signal) throws FileNotFoundException {}

@Override
public Cursor queryChildDocuments(final String parentDocumentId, final String[] projection,
        final String sortOrder) throws FileNotFoundException {}

@Override
public Cursor queryDocument(final String documentId, final String[] projection)
        throws FileNotFoundException {}

private void includeFile(final MatrixCursor result, final File file)
        throws FileNotFoundException {}

@Override
public ParcelFileDescriptor openDocument(final String documentId, final String mode,
        final CancellationSignal signal) throws FileNotFoundException {}

@Override
public boolean onCreate() {}
}

Answer 1

这是系统提供的UI。你无法改变它的行为。这包括无法决定挂钩长按一下监听器并向其添加菜单。