In Flutter, I want to create a button on top of a webview, and when that button is pressed, a keyboard event will be sent inside the webview.
There is a property value called javascriptChannels, but it seems that it can only receive signals and cannot send them.
Is there any way to handle this?
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I have a complex design for a text input field and its impossible to apply so many styles and effects on it. So i was thinking about to call (show/hide) the keyboard on a click event and send input data to a Stream and then display it with Text(). But i have no idea if it is possible to do it?
The problem is how to call a keyboard on gesturedetector. Do you have any ideas?
Thanks
I am making an Apple TV game and am programming the settings screens. The problem I am running into is that the Nimbus gamepad is sending multiple button pressed messages when I press the button just once. I would really appreciate it if someone could tell me if there is a way to make the controller send only one button tapped message when the button is tapped just once. I mean I would like it is there was a way to have only one message generated after I press a button and release the button. Thanks very much.
Looking at the GameController docs:
https://developer.apple.com/documentation/gamecontroller/gccontrollerbuttoninput?changes=_2
Are you using pressedChangedHandler or valueChangedHandler? IIRC, the Nimbus has pressure-sensitive buttons so you should expect to receive continuously changing values when the button is pressed or released. pressedChangedHandler should only be called when isPressed is toggled.
I have a dialog box, which contains a button and a TabLayoutPanel. The button is outside the TabLayoutPanel. Tab contents are separate custom widgets.
The problem: I want to respond to clicks on the button by performing an action inside one of the tab content widgets.
I tried using the GWT EventBus this way:
fire an event upon button click
add handler for this event inside the tab
But here's the problem: if I close/open the tab multiple times, the event handler will be registered again. And when the button is clicked, the event handler will start multiple times (for every handler registration/however many times the tab was opened).
Since my dialog box doesn't have an activity/place, I cannot use GWT's Activity.start(... EventBus eventBus) for automatic activity deregistration.
A possible solution is to manually remember registered HandlerRegistration(s) and .removeHandler() them when I navigate away from the tab. But this is a rather ugly solution.
Question: Is there a way to unregister events in a dialog box without remembering them?
It's hard to give a concrete answer without code, but I'd do it like this:
Add ClickHandler to the button when the Popup/Dialog gets opened.
If this button is clicked, check which tab is the active one and call a specific method on the widget in that tab.
getSelectedIndex() and getWidget(index) should be the methods on the TabLayoutPanel to use to determine which widget is the active one.
Unregister the clickhandler after the Popup/Dialog got closed.
This way, you have only one Handler to remove what should be the normal way, e.g. with the onClose() event of the DialogBox.
I am new to Development.
I have senario where we are trying to use custom objects to try to send SMS whenever a new record is inserted. Right now I am using a custom button which sends a message every time a user clicks on it and I noticed that a custom button cannot be disabled. However: I do want it to be disabled whenever the user sends the text message.
I tried using VF but in order to disable the button I need to depend on some field which has to be updated after clicking the button. Can anyone help me with this?
Can I send a message by using a trigger whenever a new record is added?
can we set the check box value to true in VF when a button in VF is clicked?
Is it possible using the SDK to change the bluetooth headset/remote buttons behavior. I would like to capture the button press(es) and perform some action, eg, skip next track, launch popup etc
I think you will receive appropriate callbacks from iOS when a button is pressed, and within these callbacks you can decide what to do.