4.1: Using Keyboards, Input Controls, Alerts, and Pickers
Task 1. Experiment with text entry keyboard attributes
1.1 Create the main layout and the showText method
1.2 Set the keyboard to capitalize sentences
1.3 Set the keyboard to hide a password when entering it
Task 2. Change the keyboard type
2.1 Use an email keyboard
2.2 Use a phone keypad
3.1 Copy the KeyboardSamples project and modify the layout
lakukan pencopy-an file KeyboardSample dan ubah nama menjadi PhoneNumberSpiner, lalu lakukan refactor terhadap file
setelah refactor dan lain-lain berhasil maka langkah selanjutnya lihat pada gambar dibawah