Widgets & Other Views - Part 1. Frank Xu Gannon University. Date Picker. Main.xml. onClickListener -button. A dialog is always created and displayed as a part of an Activity . You should normally create dialogs from within your Activity's onCreateDialog ( int ) callback method.
Widgets & Other Views-Part 1
A dialog is always created and displayed as a part of an Activity. You should normally create dialogs from within your Activity's onCreateDialog(int) callback method.
This is an Activity callback method that is passed the integer ID given to showDialog(int) (which is called by the button's View.OnClickListener). When the ID matches the switch case defined here, a DatePickerDialog is instantiated with the DatePickerDialog.OnDateSetListener created in the previous step, along with the date variables to initialize the widget date
When the user is done setting the time (clicks the "Set" button), the onTimeSet() method is called and it updates the member fields with the new time and updates the layout's TextView
XML file that defines three different images to use for the different button states
Note: The order of the <item> elements is important. When this drawable is referenced, the <item>s are traversed in-order to determine which one is appropriate for the current button state. Because the "normal" image is last, it is only applied when the conditions android:state_pressedandandroid:state_focused have both evaluated false.
-alternative to radio buttons