As you wish: Take Screenshot by using the floating screenshot button the button inside the notification or by hardware key combination.
Capture edit and share screenshots on the go
Ashampoo Snap for Android is a fully-fledged mobile application to capture edit and share screenshots and images on your Android device.
Capture screen contents take photos with your built-in camera or
simply load existing images and add stylable arrows shapes stamps
and texts to get your point across. And when you're finished share
your images through any installed file services (E-Mail Picasa
Google+ etc.).
Save and store what you see
Imagine you are browsing social media and come across a hilarious
post or chat message that could very well be the next epic chat
fail. Just take a screenshot and remove sensitive information with
Snap for Android and come back to it later.
Record and document unforeseen events on the spot
Don't just rely on your memory alone! Use Snap for Android to
record and document unfavorable situations such as car crashes and
add arrows and notes to detail the sequence of events that caused
them.
Record thoughts and ideas right in your photos
Snap for Android gives you a set of creative tools to draw and
write on your images. Enhance your vacation snaps and tell your
friends exactly where your room was during your last stay or which
places you particularly liked on that beach. Just mark the spots
right in your photos with Snap for Android.
Share images with anyone
Use the integrated Ashampoo Web upload and share unique Internet
links with others. Your images will be accessible through any web
browser and automatically expire after 30 days so your images won't
stay online forever. Of course Snap for Android also supports all
built-in sharing capabilities including Facebook and Google+.
Capture
• Instant-ready: No manual launching required (background
service)
• Notification Bar status messages wtih a screenshot button
• Smart trigger: Screenshots taken through Android-default hardware
key combination auto-open in Snap for Android
• Floating screenshot button: Keep taking screenshots and edit them
later
• System integration: Use "Open with Snap" in other apps import and
edit images through Gallery take and modify camera snapshots
Screenshot Manager
• Select multiple screenshots to share or delete them all at
once
Edit
• Pan/Zoom
• Draw arrows
• Draw rectangle/ellipse/line shapes
• Stamps (cliparts)
• Marker
• Pen
• Add text
• Crop image
• Scale canvas
• Shadow/outline support: Arrows Texts rectangles ellipses
lines
Share
• Set edited images as wallpaper in launcher
• Supports all installed sharing capabilities (Facebook Google+
Picasa Twitter etc.)
• No ads
• Image scaling supported
• AshWeb upload: Upload images to AshWeb and share unique links
• Enable/disable Notification Bar messages
• Many additional stamps/cliparts
FAQ: http://www.ashampoo.com/lpa/snap4android_help