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ArcGIS By Example
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We have seen add-on buttons before. In this section, we will add a button class where all our code will be written. This button, which will have a GPS icon, will be the sole work in this chapter. Eventually, we want to click on this button and display a form to ask the user to select the GPS file, which has a list of previously recorded tracks of coordinates. Then we will parse this file, process each record individually, and display that particular point on the map. We will create a timer to fetch each coordinate every second so that we will be able to actually see the cell phone signal strength being refreshed. We will also make this refresh interval a configurable value so that we can change it and see how fast this can progress. Follow these steps to add the button:
Change the font size
Change margin width
Change background colour