Using pinch gestures
Pinch gestures are two-finger gestures where you place two fingertips on the screen and either move them apart or closer together to zoom in and out. Pinch gestures are most commonly used with both text and pictures so you can zoom in to see details and zoom back out again, as shown in Figure 1.21:
Figure 1.21 – Pinching can expand (and shrink) text and images
Think of pinch gestures as similar to changing the size of an item using the scroll wheel with a mouse on a traditional PC.
Pinch gestures are often used with drag gestures as follows:
- Use the pinch gesture (moving two fingertips apart) to expand text or an image, as shown in Figure 1.22:
Figure 1.22 – Using the pinch gesture to expand a view
- Use the drag gesture to position the expanded text or image to display what you want to see.
- Repeat the pinch gesture (moving two fingertips closer together) to shrink the text or image back to its original size...