We get the current time from a Service that is included in the AndroidManifest and is thus started when the widget is deployed. We won’t go into detail about how to do this but we will refer you to this tutorial if you are interested. The Widget Widget Design ConsiderationsĪndroid widgets in their standard form can only be updated at a minimum of every 30 minutes, so our example widget gets around this by using an AlarmManager that triggers every second. The bottom TextView shows the current date and time and is updated every second.
The button is used to change the user name in the top TextView. The top TextView is the user configurable part of the widget, in this case the user name. It has two TextViews with a button in the middle. You can download the code for the sample widget here and try it yourself using Android Studio with the Android SDK, or just follow along with the code snippets given below. I will demonstrate the problem and its solution in this post. After large doses of caffeine and Stack Overflow, I finally figured out what was wrong. The problem was that the widget would randomly become unresponsive. Following instructions online I had trouble creating a widget that had a configuration button on it and used an AlarmManager to update the widget in real time.
The official Android widget documentation is sketchy and sometimes just plain wrong. Developing an Android home screen app widget is not for the faint of heart.
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