Play and Change the Slideshow
If you decide against playing the slideshow now, tap Cancel at the bottom of the window. You can play the slideshow by tapping Start. The slideshow plays on the screen, as shown in Figure 9.
Figure 9 If you play the slideshow in portrait mode, the Gallery app shrinks the photo to fit the width of the screen.
Stop the slideshow by tapping anywhere on the screen. If you want to change the slideshow, begin by selecting or deselecting photos in the album(s), if necessary. Then tap the Menu icon on the menu bar, and then tap Slideshow again. After you change your settings, tap Start on the menu to see how your slideshow looks and behaves.
When you’re happy with your slideshow, you can start it and hand your Tab 4 to a friend so that he can see your photos without having to do anything but enjoy them.