![]() You can apply the dialog theme directly by the activity giving the feel of a dialog box. For your own custom dialogs, you could extend the Dialog base class, as do DatePickerDialog and TimePickerDialog. There a large number of canned dialog boxes that you can use depending on the sort of user interaction you need. Use the Dialog class and its numerous extensions such as AlertDialogs, DatePickerDialog. When designing MyRuns you should think about how to come up with an implementation that handles all dialogs rather than write code here and there in your source to cover the current dialog at hand - that is, there are lots of points in the app where dialogs are used so develop code of reuse.Īndroid supports three ways to use dialogs: In this lecture, we will first show how the DialogFragment can be extended and customized. Download the demo the fragmentalertdialog.zip app specifically designed to go with these notes.In addition, checkout the section on Dialogs and DialogFragments in the course book. The code used in this demo comes form the Android developers site. Preference hierarchy specified in an XML.Note, because I restructured the course a little this year you need to go back and read about the Dialog handling for the camera - you will need that for the MyRuns2 lab. You can use this knowledge for your MyRuns2 lab and future labs. In what follows we show how DialogFragment can be used to construct and customize dialogs. Android supports DialogFragment, which is a fragment that displays a dialog window, floating on top of its activity's window. We use dialogs quite a lot in the MyRuns set of labs. We have looked at dialogs before where a dialog box pops up and floats over the UI (that is, partially obscuring the current UI) in a transparent manner prompting the user for input needed by the program - e.g., date, time.
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