You could be seeking specific capabilities to include in your web app that should only be available on touch-screen devices.
This detection may be required when implementing smarter controls for touch screen users in a gaming app or a GPS and navigation software.
But why do you want to detect touch moves on your devices
It should be emphasized that just because a device supports touch events does not mean it is only a touch screen device. Many high-end ultrabooks have touch screens.
So, in addition to looking for a touch screen device, you need to examine a few other factors for a better user experience.
Change how your iPhone reacts to your touch.
If you have problems with hand tremors, dexterity, or fine motor skills, you may change how the iPhone touchscreen responds to tap, swipe, and touch-and-hold motions.
iPhone can distinguish quicker or slower touches, as well as numerous touches. You may also switch Shake to Undo to avoid iPhone waking up when you accidentally touch the screen.
Change the tap, swipe, and multiple touch settings
Turn on Touch Accommodations under Settings > Accessibility > Touch > Touch Accommodations.
You can set iPhone to do any of the following things:
- Respond to long-lasting touches as follows: Turn on Hold Duration, then modify the duration by tapping the Decrement or Increment buttons. (The default time is 0.10.)
- To prevent inadvertent swipe motions, touch Swipe Gestures, switch on Swipe Gestures and then modify the amount of movement necessary.
- Turn on ignoring Repeat, then hit the Decrement or Increment buttons to choose the length of time permitted between successive touches.
- React to the first or last thing you touched: Use the Initial Touch Location option or the Final Touch Location option.
If Use Initial Touch Location is selected, the iPhone utilizes the location of your first tap—for example, when you press an app on the Home Screen.
When you select Use Final Touch Location, the iPhone records the tap where your finger is lifted.
When you lift your finger within a particular amount of time, the iPhone responds to a tap. Press the Decrement (-) or Increment buttons (+) to change the time.
If you wait longer than the gesture delay, your device will respond to other gestures, such as a drag gesture. Touch-and-hold gestures should have their settings adjusted.
Content previews, actions, and contextual menus are revealed with the touch-and-hold gesture.
If you’re having trouble making this gesture, try these steps:
- Go to Settings > Accessibility > Touch, then hit Haptic Touch or 3D & Haptic Touch.
- Select between Fast and Slow touch durations.
- You can also choose between Light, Medium, and Firm pressure on an iPhone with a 3D touch.
- Test the new setting on the image at the bottom of the screen.
Turn off the Tap to Wake feature.
You can prevent touches on the display from awakening your iPhone on compatible iPhone models. Turn off Tap to Wake in Settings > Accessibility > Touch.
To undo, turn off Shake.
You may disable Shake to Undo if you find yourself shaking your iPhone accidentally. Go to Accessibility > Touch in Settings.
Swipe left with three fingers to undo text modifications.
These tools will help you create a more user-friendly experience for people using your app on a touch screen device.
Have you tried using any of these methods to detect touch movement? Let us know in the comments below.