There could be a reason why Android devices do not have built-in screenshot features. The most sensible reason is related to security. But if the iPhone and iPad have easy screenshot mechanisms, why can’t the Android have it too? Samsung devices have this built-in screenshot feature but other brands do not have it.
The solution is to download screenshot apps from the Google Play store but this usually requires rooting your device. The other solution is to download desktop apps like the MyPhoneExplorer but that limits taking screenshots on the desktop only. It’s still better if screenshots can be freely taken on the device itself.
On Samsung devices, taking screenshots required pressing the volume down button and the power button at the same time. This was the same mechanism on the Galaxy Nexus. It appears that Google changed its policy on screenshots as it is also available now on the Nexus 7 tablet.
How to take a screenshot on the Google Nexus 7
Take a screenshot on the Nexus 7 is quite easy but it is not obvious. Just like taking screenshots on the Galaxy Nexus, taking screenshots on the Nexus 7 is done by simply pressing the power button and the lower volume button simultaneously. The power and volume rocker are located on the right side of device.
Do this for about a second or two until you see an animation of the screen zooming out. You’ll then see a notification on the notification bar saying that the screenshot has been saved. The screenshot is automatically saved in the Nexus 7’s Gallery folder under a subfolder named Screenshots.
From Ice Cream Sandwich to Jelly Bean, it appears that Google has indeed changed its policy when it comes to taking screenshots.