Axway Hyperloop example of an Android scratch view
Library: https://github.com/D-clock/ScratchView (modified)
var scratchview = require("/scratchview");
scratchview.setEraserSize(30);
scratchview.setMaxPercent(50);
scratchview.onProgress(function(percent){
console.log(percent);
})
scratchview.onCompleted(function(){
console.log("done");
})