como fazer uma captura de tela com um telefone Android?
Como imprimir tela Meu aplicativo no telefone Android?
How to take a screenshot with an Android phone?
How to print screen my application in android phone?
You can use an app called ShootMe from the Market to do this easily (requires root). You can also use the Android SDK to do it without root, but you have to be connected to your computer.
in the android sdk is a tool called DDMS, it will allow you to take screenshots. theres also apps on the market that can do this, but I think they require root.
If you have a Samsung Galaxy S, press the back key and keep it pressed, and then press the home key and release them both.
This will take a screenshot.
It works without rooting, without external applications, and even if the screen is locked.
Ice Cream Sandwich has this built in, I believe. On my Galaxy Nexus, I hold down Power + Volume-Down, no matter what's on the screen. (It can even be at the lock screen.)
In Cyanogenmod (7) you can press the power button to get to menu. There you can choose to take a screenshot. The screenshot is taken and it goes to same folder as photos taken by camera.
For a Samsung Galaxy Y press the menu button and the power button at the same time to take a screen shot.
I prefer the app AndroSS. It requires root access. It's options include:
For Samsung Galaxy FIT press Home + Power at the same time and release. The image will save in Gallery->screenCapture.