I am trying to do something very similar to this post. Starting with Atebits Fast Scrolling in Tweetie post I have a UITableView subclass that does all of it's drawing in the drawRect: method of it's contentView. This works perfectly and is super fast. What I am trying to do now is animate the transition from editing to not-editing.
An example of what I am trying to achieve would be a situation with some text right aligned in the cell. When entering edit mode, the contentView shifts right to allow room for the editing control but the text shifts offscreen on the right as well. If I simply call [contentView setNeedsDisplay] in layoutSubviews I can readjust the right aligned text but it just jumps to it's new position.
How can I get the transition to animate?
Your layoutSubviews should look like this:
-(void)layoutSubviews {
[UIView beginAnimations:nil context:nil];
[UIView setAnimationBeginsFromCurrentState:YES];
/* Change offsets here. */
[UIView commitAnimations];
}
You may also need to add to applicationDidFinishLaunching:
[UIView setAnimationsEnabled:YES];
Related
I need hint/code like deletion/move app effect on iOS, normally i have started the code, I am using UIButton list in UIScroll.
So my question is that supposes I have 8 to 10 button in screen and i want to change their position with dragging. for example choose 6th button and move or set to between 1 and 2. when I put them in to between the position of other button will change.
I am using UIPanGestureRecognizer for dragging.
download, Tiles-v1.0.zip, and check code, this is what i used when i needed to implement that.
reference: Move UIViews to avoid collision like rearranging icons on Springboard
If you already have the code for dragging, the rest is easy. Just use UIView Animation.
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.3];
...
[button setFrame:newFrame];
...
[UIView commitAnimations];
Basically, just move your buttons to the their new positions in that beginAnimations - commitAnimations block.
Hope this helps.
I have a setup in which I have my main UIView, within this I display another UIView which appears to slide & expand until fully in view. Within this new view I have a UITextView, however when I run the animation to make the UIView appear it doesn't seem to apply the animation to the UITextView. The effect of this is that the UITextView just appears in its final position straight away, the rest of the UIView then slides into place. Is there a way to make the animation apply to the widgets inside the view as well?
Here is the code I'm using at the moment.
[self.view addSubview:innerView];
[innerView setFrame:CGRectMake(29.5,127,261,0)];
[textView setFrame:CGRectMake(20,20,221,0)];
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:5.0];
[innerView setFrame:CGRectMake(29.5,127,261,275)];
[textView setFrame:CGRectMake(20,128,221,129)];
[UIView commitAnimations];
Please can someone help me out? I've been playing around with this problem for a long time now with no luck at all.
I had similar behavior in one of my apps. It was due to the autoresizingMask on a UITextView. Also make sure your top UIView does not have autoresizesSubviews option enable as it will influence the behavior of your UITextView on animation.
I have an application in which I have 2 textfields and a textview. When I click on the first textfield my keyboard popsup and theirs is no problem but when I type in the second textfield my keyboard popsup and covers the textfield.
I want that when I click on the second text field, the textfield should move up little bit so that I can type in and I have a textview. But I have written code for textview so that when I type in textview it automatically moves.
The problem is with textfield. How can I solve this problem?
Consider using a UITableViewController. Otherwise implement UITextFieldDelegate and move your UIView to the desired position in the - (void)textFieldDidBeginEditing:(UITextField *)textField method.
Check out the link below - the solution is written by Micheal Tyson. It addresses UITableView and UIScrollView, can be easily changed and works just as a drop-in component. I'm using it and it works well.
A drop-in universal solution for moving text fields out of the way of the keyboard
Create two methods like given below , first one is for bringing the view slightly upwards, and second one is to bring the view to its original position back
First method:
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:.3];
self.view.transform = CGAffineTransformTranslate(self.view.transform, 0, -175);
[UIView commitAnimations];
Second method:
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:.3];
self.view.transform = CGAffineTransformTranslate(self.view.transform, 0, 175);
[UIView commitAnimations];
[self.destext resignFirstResponder];
Call these methods on textfieldEditingDidbegin and DidEndonExit
Add the view to a UIScrollView. Then use the UITextFieldDelegate methods to set the contentOffset of the scrollView when textField is tapped. Reset the contentOffset when the user has finished entering text.
I have created a simple subclass of UIView containing UITextView and a send button that moves up when keyboard shows and moves down when keyboard hides. In addition to that, UITextView resizes according to the amount of text in it.
Have a look at here:
https://github.com/kerrygrover/KBTextView
An obvious one that you've probably tried already, but one that took me a while to latch onto, is to change from landscape to portrait.
I'm trying to implement a simple text animation in a custom UITableViewCell without having to go into editing mode which automatically brings up the delete button on the right. What I'm trying to accomplish is that when the label is updated by a button within the UITableviewcell, the text in the label is updated but with some smooth animation like sliding to the right since the updated text is prepended to the string. Any sample code would be great. thanks
I'm assuming the text is in a UILabel, which is a subclass of UIView, and therefore can be animated using core animation:
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.75];
[UIView setAnimationDelegate:self];
[myTextLabel setText:newText];
[UIView commitAnimations];
In photo app of iphone you can see smooth scrolling to the other picture with finger flicking. Is it possible to allow individual view to be 'flipped' (or rotated) to show its back side ? Found that UIScrollView is used for smooth scrolling and found the code for flipping UI. Outside of UISCrollView I got the flip to work using the code below. But once inside UIScrollView this doesn't work - it executes but UI never switches.
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationTransition: UIViewAnimationTransitionFlipFromLeft forView:myView cache:YES];
[UIView setAnimationDuration:1.0];
[myView exchangeSubviewAtIndex:0 withSubviewAtIndex:1];
[UIView commitAnimations];
Perhaps this is not suppose to work this way. What is the recommended way or technique to have flippable individual views inside the UIScrollView ?
Never mind. It does work. Once inside UIScrollView there were several UIViews and I needed to make sure I grab the pointer to current UIView. The above code works in this case as well. I was doing a flip on a view which was hidden :)