While extremely intuitive and innovative, the pinch-zoom gesture can be difficult at times and for certain people. Be it due to a user’s physical limitations or one-handed device operation, the gesture isn’t always the most convenient. And while Google Maps has incorporated an alternative zoom gesture for some time, there isn’t always a good alternative gesture for application zoom gesture functionality in every app.
XDA Senior Member jerryfan2000 aims to change this with Assistive Zoom. As you can gather from the app’s title, Assistive Zoom assists users in sending the pinch-zoom gesture signal from just single-finger operation. To make the application to be useful to a wide range of users, Assistive Zoom is highly configurable in sensitivity, trigger options, and zoom options. It currently offers three trigger icon style options, as well as fine control of zooming scale and user-selected triggers.
The application is compatible with Android devices running Froyo and greater. As this is a system-wide modification, root access is required. Want to give this a shot on your own device? Simply head over to the modification thread to get started.