HOW TOUCH SCREENS WORK
Most of the touchscreen phones now use ‘capacitive touchscreen’.
To control the touch screen of your phone, use a device called a “stylus”
1. Tap: It’s used to launch apps, select items, follow weblinks and so on
2. Tap and hold (and drag): Tap and hold so that the icon appears to ‘detach’, then drag it to where you want it. It might be used for similar drag and drop operations in other applications.
3. Scroll: Keep your finger in contact with the screen and move it up or down, left or right.
4. Swipe: The swipe is like flinging the current page or image aside to reveal to the next page or image.
5. Pinch-to-zoom: move two fingers apart to zoom in (enlarge that part of the screen), or pinch them closer together to zoom out.
6. Double tap: double tap on the web page to zoom and double tap again to zoom out.
7.Motions: smart phones also support motions. shaking the phone, tilting the phone, holding it to your ear, rotating the phone and more.