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Why can't QML key events be intercepted?

By : Java Dacker
Date : October 18 2020, 06:10 AM
To fix the issue you can do You can't disconnect a method when you use onReturnPressed: {} definition.
You have to use Connections for that.
code :
import QtQuick 2.9
import QtQuick.Controls 1.4

Item {
    id: myItem
    anchors.fill: parent

    property bool acceptEvents: true
    signal returnPressed()
    Keys.onReturnPressed: returnPressed()

    Connections {
       id: connection
       target: myItem
       enabled: acceptEvents
       onReturnPressed: {

Window {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")

    VolumeSlider {
        id: obj
        anchors.fill: parent
        focus: true
        Keys.onReturnPressed: {
            event.accepted = true

        Component.onCompleted: {
            obj.acceptEvents = false; // Remove connections

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Can signals/events from handsfree accessory of Android phone be intercepted?

By : Shu-Kai Yang
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further There is the ACTION_MEDIA_BUTTON broadcast Intent. I do not know if that will be broadcast as a result of any user action with a Bluetooth headset. Otherwise, I suspect there is nothing available for you to hook into, sorry.

Microsoft Surface: How do I allow JavaScript touch/drag events to work without being intercepted by the browser?

By : Niki
Date : March 29 2020, 07:55 AM
wish of those help According to MS's guide on "Pointer and gesture events" (here: http://msdn.microsoft.com/en-us/library/ie/hh673557%28v=vs.85%29.aspx#Panning_and_zooming) you need to add a CSS class to the element you want to disable panning on with the "-ms-touch-action" rule set to "none" like this:
code :
    -ms-touch-action: none; /* Shunt all pointer events to JavaScript code. */

Intercepted ScrollView interfering with child onClick events

By : Megan Nguyen
Date : March 29 2020, 07:55 AM
around this issue my custom ScrollView use totalSize of xScroll and yScroll. i record current xPoint and yPoint,when click down. calculate it when it moving .
code :
public class PageScrollView extends ScrollView {

    private float xDistance, yDistance, lastX, lastY;

public PageScrollView(Context context, AttributeSet attrs) {
    super(context, attrs);

public boolean onInterceptTouchEvent(MotionEvent ev) {

    switch (ev.getAction()) {
        case MotionEvent.ACTION_DOWN:
            xDistance = yDistance = 0f;
            lastX = ev.getX();
            lastY = ev.getY();
        case MotionEvent.ACTION_MOVE:
            final float curX = ev.getX();
            final float curY = ev.getY();
            xDistance += Math.abs(curX - lastX);
            yDistance += Math.abs(curY - lastY);
            lastX = curX;
            lastY = curY;
            if(xDistance > yDistance)
                return false;

    return super.onInterceptTouchEvent(ev);

Using CSS how do I prevent my click events from being intercepted by elements on top?

By : Thomas Wiler
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I have a div that overlaps another one that I want to click on. I want to allow the click to go through to the bottom div. I don't want to use JS to accomplish this. , Try this :

What is the difference is between something intercepted on the Session Layer vs. something that was intercepted on the A

By : NPesch
Date : March 29 2020, 07:55 AM
Hope this helps OSes have never implemented OSI layers 5, 6, and 7 as separate layers. In reality, there is a single layer for those three layers, and most people call it the Application layer. Some applications use protocols above OSI layer-4, but those are implemented in the application, not by the OS the way that layers 2, 3, and 4 are.
One example is how web browsers work. You can see that a web browser uses things that should be associated with the separate session, presentation, and application layers, but all those are rolled into the application itself.
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