The document discusses different types of notifications that can be used in Android applications, including alert dialogues, progress bars, date pickers, and time pickers. Alert dialogues are small pop-up windows that interrupt the user to notify them or request input. Progress bars and dialogs can be used to show indefinite or defined progress for a task. Date and time pickers allow users to select dates and times through widgets.

2. What are notifications ?
• The name itself implies their functionality. They are a way
of alerting a user about an event that he needs to be
informed about or even take some action on getting that
information.
• Notification on Android can be done in any of the
following ways
Alert Dialogue
Progress Bar
Date Picker
Time Picker

3. Alert Dialogue
• A dialog is usually a small window that appears in front of
the current Activity.
• Dialogs are normally used for notifications that should
interrupt the user and to perform short tasks that directly
relate to the application in progress (such as a progress
bar or a login prompt).
• Syntax to declare the AlertDialog box
AlertDialogalertDialog =
new AlertDialog. Builder(Main.this).create();
• Syntax to set your dialog's title like this
alertDialog.setTitle("Reset..."); (View Source)

4. Types Alert Dialogue
(View Source)

5. Progress Dialog
• This Progress Dialog can display a progress animation in
the form of a spinning wheel, for a task with progress
that's undefined, or a progress bar, for a task that has a
defined progression.
• Syntax to declare the AlertDialog box
ProgressDialog dialog =
ProgressDialog.show(MyActivity.this, "", "Loading. Please
wait...", true);
(View Source)

6. Date Picker
• Android provide a widget To Select Date we call it as Date
Picker
This is the example of
android date picker in
android we have a
widget to access the
date picker directly
initially the date picker
will display the current
date if the user want
to change the date it is
simple to change .
(View Source)

7. Time Picker
• Android provide a widget To Select Time we call it as Time
Picker
This is the example of
android time picker in
android we have a
widget to access the
time picker directly
initially the time picker
will display the current
time if the user want
to change the time it
is simple to change .
(View Source)