I would like to use the same UIBarButtonItem but change the Icon to another UIBarButtonSystemItem within the same instance. Is there a way to do this? Also is there a way to detect
which UIBarButtonSystemItem is being used?
var btn = UIBarButtonItem(UIBarButtonSystemItem.Play, null)
btn.?? = UIBarButtonSystemItem.Pause
choper pointed to me to a question that explained that I could not alter the image instance.
I basically followed the advice of that post and I toggle between two buttons(play and pause)
Related
my question is, fabric.js makes active object on top of others when dragging.
I know a property can do this, can't remind.
Thanks.
You can do it like this:
canvas.add(red, blue); // add youre objects..
function myDrag(e) { // funciton on drag (moving)
e.target.bringToFront();
}
canvas.on({
'object:moving': myDrag,
});
Want to add more events? Use the Event inspector # fabricjs
I made a working Fiddle. Hopes it helps...
I know it's been a long time since you asked this but I want to answer it if anyone would stuck for that.
This behavior is default in fabric js right know but if you want to change it just set preserveObjectStacking to false when initializing the canvas. See more in documentation.
NOTE: There are two similar SO questions (1) (2), but neither of them provides an answer.
TL;DR: How can one dismiss the keyboard in a MonoTouch.Dialog by letting the user touch any empty space in the view?
I'm writing an app using MonoTouch.Dialog and a UITabBarController. One of my tabs is "Settings"...
When the user starts typing, the keyboard obstructs the tabbar...
Using MonoTouch.Dialog, the only way to dismiss the keyboard is to go to the last field and press the "return" key. Considering the fact that the user cannot press any tab until the keyboard is gone, I would like a better way to do it. Namely, to dismiss if the user taps anywhere else on the screen.
Without MonoTouch.Dialog, it's a snap: simply override TouchesBegan and call EndEditing. But this doesn't work with MT.D. I've tried subclassing DialogViewController and overriding TouchesBegan there, but it doesn't work. I'm currently at a loss.
Or, I wonder, would I be better off ditching the tabbar so I can use a UINavigationController with a "Back" button on top, which won't be hidden by the keyboard?
I suggest you use a tap gesture recognizer that will not cause interference with the TableView event handlers:
var tap = new UITapGestureRecognizer ();
tap.AddTarget (() => dvc.View.EndEditing (true));
dvc.View.AddGestureRecognizer (tap);
tap.CancelsTouchesInView = false;
You missed my question about it also: Can the keyboard be dismissed by touching outside of the cell in MonoTouch.Dialog?
:-)
This is my #1 feature request for MonoTouch.Dialog.
To answer your question: No. It is not possible. I have searched and asked around and have not found any answers.
I assume because it is just a sectioned (grouped) table and if it wasn't sectioned, there wouldn't be any spot to click. However, that is just my speculation.
I wish that miguel or someone that works on monotouch would answer this and say if it is even possible. Possibly a future enhancement?
I figured out a workaround that satisfies me well enough, so I'm answering my own question.
// I already had this code to set up the dialog view controller.
var bc = new BindingContext (this, settings, "Settings");
var dvc = new DialogViewController (bc.Root, false);
// **** ADD THIS ****
dvc.TableView.DraggingStarted += (sender, e) => {
dvc.View.EndEditing (true);
};
This will dismiss the keyboard whenever the user drags the view a little bit. There's no touch event I could find associated with the tableview, so this is the next best thing. I'd welcome any other ideas. Cheers!
One workaround to use the dragging gesture instead of the tap as proposed (that do not interfere with the table view gestures) is to override MonoTouch.Dialog.DialogViewController.SizingSource (or MonoTouch.Dialog.DialogViewController.Source if you don't want uneven rows) and give it to the DialogViewController. I don't know if it is very clean or safe.
public class CustomTableViewSource : MonoTouch.Dialog.DialogViewController.SizingSource
{
public CustomTableViewSource(MonoTouch.Dialog.DialogViewController dvc) : base(dvc)
{
}
public override void DraggingStarted(UIScrollView scrollView)
{
base.DraggingStarted(scrollView);
if (scrollView != null)
{
scrollView.EndEditing(true);
}
}
}
I need to be able to hide the navbar and tabbar when I tap on the view and show it again when tapped again. Is this possible in Monotouch?
Anything that is possible with the native platform is possible with MonoTouch.
There are dozens of ways of achieving this. Perhaps the simplest thing to do is to create your own UIViewController that will host only the information you want and calling:
var myNewController = new MyNewController ()
myNewController.View.TouchDown += delegate {
myNewController.DismissViewControllerAnimated (false);
};
PresentModalViewController (yourNewController, false);
Then your myNewController must contain some code to add the actual contents that you want to show in full screen.
I am trying to do this:
public class DialogMenuHawaii extends Dialog {
Style s = UiFactory.getBaseStyle();
s.setBgTransparency(0);
s.setBgImage( <my image >);
this.setUnselectedStyle(s);
}
but it doesn't work.
First, I suggest you use a theme. We constantly change small implementation details e.g. customizations like the one you are doing will not be portable between LWUIT 1.4 and 1.5. There is no reason whatsoever not to use a theme for something like this.
If you are interested in the pain and suffering of manually coding view logic into your application you can use several methods such as getDialogComponent() to get the style from them and manipulate that. Dialog is a complex beast due to the fact that its really a form padded away from the edges.
Open your '.res' file in resource Editor and select your preferred theme,
Under 'Unselected' tab open the DialogContentPane style, if you don't have one create it look at the end of this answer on HOW TO DO IT?, and set the background image to the image you need to show as Dialog bg
Under 'Unselected' tab open the DialogBody style, if you don't have one create it look at the end of this answer on HOW TO DO IT?, and set the background transparency as '0' and also make sure the background image type is NONE
NOTE: The above code will reflect for all the Dialogs in your application. If you want a particular dialog with background image than derive new styles from these default styles, and follow the above steps to apply it to your DialogMenuHawaii or any runtime Dialogs.
HOW TO: I would recommend you to go through the Shai's blog posts LWUIT Resource Editor Tutorial Part 1 till part 10. To better understand the Resouce Editor its features and capabilities.
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PS: Programmatic-ally i haven't been able to achieve it using TextArea which is the case for default Dialog's. If you replace the dialog body component with Label if works fine, the code sample is given below. I haven't delved much into why is it so ? maybe will do it in my free time. Hence i have proposed a working alternative solution which is scripted above using Resource Editor and below using the code
class MyDialog extends Dialog {
public void show() {
Container octnPane = this.getDialogComponent();
octnPane.getUnselectedStyle().setBgTransparency(0, false);
Container ctnPane = (Container)((BorderLayout)octnPane.getLayout()).getCenter();
ctnPane.getUnselectedStyle().setBackgroundType(Style.BACKGROUND_IMAGE_SCALED, false);
ctnPane.getUnselectedStyle().setBgImage(myImage, false);
Label t = new Label("Dialog");
t.setUIID("DialogBody");
t.getUnselectedStyle().setBgTransparency(0, false);
ctnPane.addComponent(t);
super.show();
}
}
This is for Dialog background.
Dialog dialog = new Dialog();
dialog.getDialogStyle().setBgImage(Image.createImage("/image/image.png"));
If you want to set transparency of Dialog with image.
dialog.getStyle().setBgImage(Image.createImage("/image/image.png");
I Created a grouped table view, and I noticed that placing an image in the imageView results in an image that is too large. It overlaps the rounded borders of the cell, which is horrible. I tried looking for a way to resize it, but I found many answers that didn't quite satisfy me. How would you do this? Which is the simplest way to go? The solutions I found where strangely complicated.
Thanks!
The other solutions didn't satisfy me. The only good solution I found is this. You can resize the UIImage which is passed to the UIImageView.
The easy way is doing in Interface Builder. Select your UIImegeView and go to the Inspector 1 view, yo can see View/Mode here choose ScaleAspectFit or ScaleToFill.
Else do it by code:
imageView.contentMode = UIViewContentModeScaleAspectFit;
or
imageView.contentMode = UIViewContentModeScaleToFill;
Sorry I made a mistake. First add you image to the tableview cell:
cell.imageView.image = [UIImage imageNamed:#"image.png"];
then set the content mode:
cell.imageView.contentMode = UIViewContentModeScaleAspectFit;
or
cell.imageView.contentMode = UIViewContentModeScaleToFill;