The iPhone Mail application has an edit button in the navigation bar. Tapping that button shows a delete button in the toolbar and shows checkbox controls in the table cells. Tapping one or more checkboxes then tapping the delete button causes the checked messages to be deleted.
How can I add similar functionality to my own code?
Here's a screenshot of the effect I'm looking for:
screenshot of spam folder with some messages checked http://www.freeimagehosting.net/uploads/add199aa62.png
UINavigationBar has a UINavigationItem with a leftBarButtonItem and a rightBarButtonItem.
To set your edit button you init a bar button item with the style: UIBarButtonSystemItemEdit.
Follow the delete button example here:
http://dragonforged.com/devblog/?p=34
#DavidSowsy's answer only shows how to draw a red button.
For those actually interested in selecting multiple rows in a UITableView, I have found 2 ways to do it:
The easy way that involves undocumented APIs and will probably make your app crash in the next
OS update.
The proper one, that is a bit more work but works well and you won't have to think about it again.
For my project, I chose the latter.
Related
I have a view with a textfield at the top, a textview under it and two buttons below the textview.
The keyboard is configured with a "Done" button. Once the user has typed in their info, they click the save button, which is below the textview. First they click Done to hide the keyboard (and reveal the save button) then click the save button.
I need to allow carriage returns in the textview but "Return" is already taken up by Done.
How is it usually handled when you need a Return key and ability to also hide the keyboard?
Drag a button into your view, delete the text, and resize it to take up the entire view. In the document outline, select the new button and drag it to the top of the list of elements. This puts it in the background so it is not hiding the elements of your view.
Add this code to your ViewController:
#IBAction func hideKeyboard(sender: AnyObject) {
self.textField.resignFirstResponder()
}
Link the button to this action and you're all set.
If you're using a UINavigationBar or have other buttons or fields, activating any of those UIControls could be detected and used to dismiss the keyboard via resignFirstResponder(). In fact Save/Cancel/Done are UIBarButtonItems and are a standard mechanism for completing things and changing state, and create a framework for accomplishing what you want. If you don't take that approach then you have to get creative with how you do it, and also make it clear to the user what needs to be done.
In Interface Builder you can change the type of your main view from UIView to UIControl and then use addTarget() to detect touch events as a 'touch outside' area and use those actions to resign first responder as well. But you might want to consider a UINavigationBar or some other button bar or tab interface to make state transitions.
Also review iOS Human Interface Guidelines document. It's a great document for understanding how iOS is designed to handle common situations like what you are dealing with, and it can get you out of design ruts. It's well written and worth re-visiting periodically.
Am working in message based iPhone application. In my application looking like iMessage native iOS app. I made Bubbles with used UIImageView and UILabel. I made UILabel as clickable and showing Copy option. It is working fine when the message input UITextView is not in active.
1. I can show the "Copy" option when we clicking UILabel and the UITextView is not becomeFirstResponder.
2. When the user clicking the MessageTextView (UITextView) from the bottom of the screen the UITextView becoming first responder and keyboard is showing now. In this scenario if the user clicking the messabe bubble (UILabel) the UIMenuItem showing "Paste" on the bubble instead of "Copy".
3. If i click "Paste" from the bubble UIMenuItem already copied text will be pasting in UITextView. So the control fully in UITextView UIMenuController not activated in UILabel. So i cleared the text from UIPateBoard when the user clicking the Bubble (UILabel).
4. Now the UIMenuController not showing up even [self becomeFirstResponder]; not becoming in UILabel class.
The reason is when the UITextView is in becomeFirstResponder the control fully in that. not coming to UILabel. Could you please help me on this.
How to show UIMenuItem "Copy" when the user clicking UILabel if the keyboard is in visible the control is in UITextView? Could you please help me on this. I spent two days in this issue. Thanks in advance.
May be I am wrong.CONSIDER THIS ANSWER AS A COMMENT.
I tried to achieve like what you are trying to do. Thats not working too. I figured out I cannot make access the two views at the same time. Especially when I have any view becomeFirstResponder and you cannot access menu items of other view.
But if you try like this,you may succeed in your code.
1) In the touchesBegan: method, find the user touching inside your UILabel.
2) If that happens, then show a custom view with buttons like copy,paste and select like that.
Im working on an ios app and my question is how to change the default button on swipe to delete on a uitableview. i see i can change the text with titleForDeleteConfirmationButtonForRowAtIndexPath but i want to change the image completely. ive been looking around for a way and all the posts about it may be out of date so just want to confirm with people before i go ahead with this. What im going to do is add a gesture recogniser to the cells themselves to catch the users swipe on individual cells and then add in my custom button and re arrange the cell frame from there and just forget about apples default swipe to delete completely. how that sound?
Here is a great open-source class for doing exactly this, based on the behavior of the Twitter app:
https://github.com/thermogl/TISwipeableTableView
I've developed an iPhone App and most of it is accessible but I have an issue with one thing I do.
When the user clicks the settings button in the App (it has a main menu with a bunch of buttons for various Applications) I add a UIView on the top and and darken the background screen. Unfortunately for a blind person this UIView doesn't become "active", ie they are still navigating around the background screen.
I initially added the UIView using addSubview: and then tried insertSubview: atIndex: but neither have operated as expected.
Edit: Further information there are text fields and a button on this screen, perhaps I could instead make one of them active or something?? No idea how I would do this though.
How about using becomeFirstResponder? It makes the control receiving this message active and the receiver of input. For UITextView etc. it brings up the keyboard.
I didn't get what you are saying, but I thought there may be problem with the view added on the top.
Do one thing, if you added the view using interface builder then select the view and click on Layout menu in the Menu bar and select "Send to Back".
or else if you add that through code, then write code as
[self.view sendSubViewToBack:addedView];
Regards,
Satya
Im working on a small app that displays contact and biography details.
You can see two screenshot here: contactDetails, biogDetails.
At the moment I have an Action button on the right hand side of the NavigationBar that displays an ActionSheet where the user can perform various actions like:
"add to favorites"
"update data",
"Biog Details", etc.
I feel the "Biog Details" is not an action as the others and I would like to display it on a different way.
I was wondering if there is a way to add an extra custom button to the PersonViewController.
I dont really want to create a lookalike of the PersonViewController, because i would lose functionality that I can replicate with the public APIs.
The other option could maybe be to have a segmentedController on the center of the NavigationBar that would switch between the two viewsControllers. How could I do that?
Im open to ideas.
Thanks,
The only way you'll be able to add that extra button is if you use the UIToolBar instead of the UINavigationBar.
If you decide to use the UISegmentedControl you'll also have to use the UIToolBar.
You can duplicate the UISegmentedControl on both views but with the appropriately selected segment on either.
Or you could use one "base" view, add the other two as subviews and hide/unhide the appropriate view depending on the segment that is selected. This would however mean that you change the position of the subviews (by adjusting their rect parameters) so that they appear just below the UIToolBar