tableview

问题 With VoiceOver enabled a user can use a 3 finger swipe gesture to scroll TableViews. VoiceOver verbally announces to the user a phrase indicating their location on the tableview i.e. the rows that are visible such as "Rows 1 to 4 of 5". I would like to override this verbal prompt and get voiceover to announce something else to the user. 回答1: You can't change only the message. You will have to override accessibilityScroll: and do the scrolling and then post the scroll announcement (at least I

问题 I use the SDWebImage image downloading/caching library pretty much any time I display an image in a table view. I would usually implement it like so (in a table view cellForRowAtIndexPath method). [cell.imageView setImageWithURL: [NSURL URLWithString:@"http://asite.com/animage.jpg"] placeholderImage:[UIImage imageNamed:@"placeholder.png"]]; And that would load a cached version if it had one. What about if I wanted to use the simplicity of SDWebImage (with the placeholder / robust downloading

问题 I use the SDWebImage image downloading/caching library pretty much any time I display an image in a table view. I would usually implement it like so (in a table view cellForRowAtIndexPath method). [cell.imageView setImageWithURL: [NSURL URLWithString:@"http://asite.com/animage.jpg"] placeholderImage:[UIImage imageNamed:@"placeholder.png"]]; And that would load a cached version if it had one. What about if I wanted to use the simplicity of SDWebImage (with the placeholder / robust downloading

问题 I have a NSTableView whose cells are view-based . DataSource & Delegate are connected , but I'm not able to display the cell's textField string value . This is the code in Objective-C, working : - (NSInteger)numberOfRowsInTableView:(NSTableView *)tableView { return 10; } - (NSView *)tableView:(NSTableView *)tableView viewForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row { NSTableCellView *cell = [tableView makeViewWithIdentifier:@"List" owner:self]; [cella.textField

问题 I need to implement a filter in javafx tableview with huge data (around 100,000 ), I have tried this tutorial. It works but filtering is really slow as compared to swing sorting and filtering, code. Can anyone help me to increase speed. What is happening right now is as I type textproperty change fire up and filterdata but it is slow, I need something which shows filter result with typing quickly as happening in swing. thanks in advance. p.s I have also looked at this. 回答1: You may use

问题 This question already has answers here : Closed 6 years ago . Possible Duplicate: Get notified when UITableView has finished asking for data? is it possible to get notification when tableview finish to reload its data after reloadData method? Or is it possible to wait till tableview finish reloading? Thanks 回答1: There is a very simple solution is to check if you are in the last iteration of the delegate -(void) tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell

问题 Can someone suggest issue in below code. I am not able to populate data in table. This code basically should add one column (col1) and add one row with data d1 in it. This code is able to add column but not data. Controller - import java.util.ArrayList; import java.util.List; import javafx.collections.FXCollections; import javafx.collections.ObservableList; import javafx.fxml.FXML; import javafx.scene.control.TableColumn; import javafx.scene.control.TableView; public class

问题 I would like to know more about how to practically use or subclass (if necessary) CheckBoxTableCell. There is one specific case I would like to use this class, whereby the check box doesn't bind to the underlying data model property. Suppose that I have a column call 'Select' that has check boxes in them. This column, more or less serve as a visual marker against the row. An user could tick these boxes and then use a button to execute some action against the ticked rows (e.g. delete all

问题 I make a view like imessage, just input text into the bottom text view. I use table view to do this, and the text view in the last cell. when I input long text that more than one line, I need the text view and the cell become tailer. so I need refresh cell's height. but if I use table view's reload or reload row, the content in text view will disappear and the keyboard will disappear too. Is there any way better to fix it? May be I should use tool bar to do it easy? but I still doubt table

问题 I have TableView inside a ViewController that is populated using JSON data: The following is the structure of the JSON including sections: struct TabSections { let name : String let collection : [TabCollection] } struct TabCollection: Decodable { let number, person, status: String let maker: String } The following is how the TableView and tabs populate with the JSON data: var sections = [TabSection]() private func fetchJSON() { guard let url = URL(string: "https://example.com/example/example