User notification

Android Club 2015

Agenda

• Toast• Custom Toast• Notification• Dialog

Toast: example

• Toast.makeText(getApplicationContext(), “Hello Android”, Toast.LENGTH_LONG).show();

Toast: practice

• Create new button• Text: Say hello• Set OnClickListener• Toast: “Hello [YOUR_NAME]!”

Custom Toast: example

Toast toast = new Toast(getApplicationContext());toast.setDuration(Toast.LENGTH_LONG);View view = getLayoutInflater().inflate(R.layout.toast_hello, null);toast.setView(view);toast.show();

Custom Toast: practice

• Create new Button• Text: Say hello• Set OnClickListener• OnClick: show one small image and

text• For example: Just do it!

Notification 5 steps

• Create PendingIntent• Create Notification• setLatestEventInfo()• NotificationManager• Notify

Notification: example

Intent intent = new Intent(this, MainActivity.class);PendingIntent pending = PendingIntent.getActivity(this, 0, intent, 0);

Notification notification = new Notification(R.drawable.friend, "Text1", System.currentTimeMillis());// Set the info for the views that show in the notification panel.notification.setLatestEventInfo(getApplicationContext(), "Text2", "Text3", pending);

// Send the notification.NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);manager.notify(0, notification);

Notification: practice

• Create PendingIntent which goes to FriendActivity

• Ticker text: “Friend: hello”• Title: Your friend name• Content: Message content

Dialog

• AlertDialog• ProgressDialog• DatePickerDialog• TimePickerDialog

AlertDialog step-by-step

• Create AlertDialog builder• setTitle• setMessage• setPositiveButton• setNegativeButton• Create AlertDialog from builder• show

AlertDialog: example

AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder( MainActivity.this);

// set titlealertDialogBuilder.setTitle("Delete");

// set dialog messagealertDialogBuilder .setMessage("Do you want to delete this file?") .setCancelable(false) .setPositiveButton("Yes", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { // if this button is clicked, close // current activity MainActivity.this.finish(); } }) .setNegativeButton("No", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { // if this button is clicked, just close // the dialog box and do nothing dialog.cancel(); } });

// create alert dialogAlertDialog alertDialog = alertDialogBuilder.create();

// show italertDialog.show();

AlertDialog: practice

• Show AlertDialog• Title: Exit app• Message: Do you want to exit app• Positive: Exit• Negative: No, I love this app

Progress Dialog: example

ProgressDialog dialog = ProgressDialog.show(this, "Downloading", "Downloading very big file", true);dialog.setCancelable(true);dialog.show();

ProgressDialog: practice

• Show ProgressDialog• Title: Distance• Message: Calculating Distance from

Tashkent to Tokyo• Cancelable: true

Homework 1: Toast

• Show Toast: “This is toast”

Homework 2: Custom Toast

• Create layout for toast• Put text: This is toast• Put image: Toaster image• Show custom Toast using that layout

Homework 3: Notification

• Show notification• Icon: GooglePlay• Ticker text: Updating app• Message: Updating telegram app• Content: Updating telegram app to

the new version: 2.2.2

Homework 4: AlertDialog

• Title: Terms of service• Message: Are you agree with terms of

service?• Positive: I agree (open new activity)• Negative: I do not agree (close app)• setCancelable: false

Homework 5: ProgressDialog

• Show ProgressDialog• Title: AndroidClub• Message: Learning Android =)

Questions?

• Any questions?

Thank you

• Thank you for your attention!