scrollshot

A bash script for automatically scrolling and stitching screenshots of Android apps. Detects and accounts for overlapping pixels.

requirements

• bash or a similar shell
• imagemagick

api

$ scrollshot.sh <filename> <iterations> <footer keep> <footer ignore> <distance> <start> <overlap> <end>

argument	default	purpose
filename	scrollshot	name of the output file, without .png
iterations	3	number of iterations to scroll
footer keep	auto	bottom area to keep in output and ignore when scrolling (in pixels)
footer ignore	0	additional bottom area to ignore when scrolling (in pixels)
distance	2 * dpi	distance to scroll per iteration (in pixels)
start	-4dp	initial overlap test offset (in pixels)
overlap	20dp	height of overlap test area (in pixels)
end	4dp	final overlap test offset (in pixels)

tips

• Keep the floating action button from repeating with footer ignore set to about 78dp.
• To preserve spacing in apps with a lot of whitespace (identical vertical pixels), increase overlap.
• Blinking cursors will fool the automatic footer detection.