Lesson 4: User Interaction

NAMA : SAFIRA AINI

NIM : 1202154315

KELAS : SI-39-03

4.1. Menggunakan Keyboard, Kontrol Masukan, Peringatan, dan Picker

Tugas 1: Bereksperimen dengan atribut keyboard entri teks

1.1 Membuat layout utama dan metode showText

Hasil :

1.2 Setel keyboard untuk menjadikan huruf besar di awal kalimat

Hasil :

1.3 Setel keyboard untuk menyembunyikan sandi saat memasukkannya

Hasil :

Tugas 2. Mengubah tipe keyboard

2.1 Menggunakan keyboard email

Hasil :

2.2 Menggunakan keypad ponsel

Hasil :

Tugas 3: Menambahkan kontrol masukan spinner untuk memilih label telepon

3.1 Salin proyek KeyboardSamples dan ubah layout

3.2 Tambahkan kode untuk mengaktifkan spinner dan listener-nya

3.3 Tambahkan kode untuk merespons pilihan pengguna

Hasil :

Tugas 4: Menggunakan dialog untuk peringatan yang memerlukan keputusan

4.1 Buat proyek baru dengan layout untuk menampilkan dialog peringatan

Hasil :

Tugas 5: Menggunakan picker untuk masukan pengguna

5.1 Membuat layout aktivitas utama

5.2 Buat fragmen baru untuk picker tanggal

5.3 Buat fragmen baru untuk picker waktu

Date Picker :

 

package com.example.android.DateTimePickers;
 
 
 import android.app.DatePickerDialog;
 import android.app.Dialog;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
 import android.support.v4.app.DialogFragment;
 import android.support.v4.app.Fragment;
 import android.widget.DatePicker;
 
 import java.util.Calendar;
 
 public class DatePickerFragment extends DialogFragment
         implements DatePickerDialog.OnDateSetListener {
 
     /**
      * Creates the date picker dialog with the current date from Calendar.
      * @param savedInstanceState    Saved instance
      * @return DatePickerDialog     The date picker dialog
      */
     @NonNull
     @Override
     public Dialog onCreateDialog(Bundle savedInstanceState) {
         // Use the current date as the default date in the picker.
         final Calendar c = Calendar.getInstance();
         int year = c.get(Calendar.YEAR);
         int month = c.get(Calendar.MONTH);
         int day = c.get(Calendar.DAY_OF_MONTH);
 
         // Create a new instance of DatePickerDialog and return it.
         return new DatePickerDialog(getActivity(), this, year, month, day);
     }
 
         public void onDateSet(DatePicker view, int year, int month, int day) {
         // Convert the date elements to strings.
         // Set the activity to the Main Activity.
         MainActivity activity = (MainActivity) getActivity();
         // Invoke Main Activity's processDatePickerResult() method.
         activity.processDatePickerResult(year, month, day);
     }
 
 }





Main Activity

package com.example.android.DateTimePickers;
 
 import android.os.Bundle;
 import android.support.v4.app.DialogFragment;
 import android.support.v7.app.AppCompatActivity;
 import android.view.View;
 import android.widget.Toast;
 
 /**
  * This app shows the time and date pickers when you click the appropriate button.
  */
 public class MainActivity extends AppCompatActivity {
 
     /**
      * Creates the view based on the layout for the main activity.
      * @param savedInstanceState    Saved instance
      */
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
     }
 
     public void showDatePickerDialog(View v) {
         DialogFragment newFragment = new DatePickerFragment();
         newFragment.show(getSupportFragmentManager(), getString(R.string.date_picker));
     }
 
     public void showTimePickerDialog(View view) {
         DialogFragment newFragment = new TimePickerFragment();
         newFragment.show(getSupportFragmentManager(), getString(R.string.time_picker));
     }
 
     public void processDatePickerResult(int year, int month, int day) {
         // The month integer returned by the date picker starts counting at 0
         // for January, so you need to add 1 to show months starting at 1.
         String month_string = Integer.toString(month + 1);
         String day_string = Integer.toString(day);
         String year_string = Integer.toString(year);
         // Assign the concatenated strings to dateMessage.
         String dateMessage = (month_string + "/" + day_string + "/" + year_string);
         Toast.makeText(this, getString(R.string.date) + dateMessage, Toast.LENGTH_SHORT).show();
     }
 
     public void processTimePickerResult(int hourOfDay, int minute) {
         // Convert time elements into strings.
         String hour_string = Integer.toString(hourOfDay);
         String minute_string = Integer.toString(minute);
         // Assign the concatenated strings to timeMessage.
         String timeMessage = (hour_string + ":" + minute_string);
         Toast.makeText(this, getString(R.string.time) + timeMessage, Toast.LENGTH_SHORT).show();
     }
 
 } Time Picker :



package com.example.android.DateTimePickers;
 
 
 import android.app.Dialog;
 import android.app.TimePickerDialog;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
 import android.support.v4.app.DialogFragment;
 import android.support.v4.app.Fragment;
 import android.text.format.DateFormat;
 import android.widget.TimePicker;
 
 import java.util.Calendar;
 
 /**
  * A simple {@link Fragment} subclass for a time picker.
  * Sets the current time for the picker using Calendar.
  */
 public class TimePickerFragment extends DialogFragment implements TimePickerDialog.OnTimeSetListener {
 
     /**
      * Creates the time picker dialog with the current time from Calendar.
      * @param savedInstanceState    Saved instance
      * @return TimePickerDialog     The time picker dialog
      */
     @NonNull
     @Override
     public Dialog onCreateDialog(Bundle savedInstanceState) {
         // Use the current time as the default values for the picker.
         final Calendar c = Calendar.getInstance();
         int hour = c.get(Calendar.HOUR_OF_DAY);
         int minute = c.get(Calendar.MINUTE);
 
         // Create a new instance of TimePickerDialog and return it.
         return new TimePickerDialog(getActivity(), this, hour, minute,
                 DateFormat.is24HourFormat(getActivity()));
     }
 
     /**
      * Grabs the time and converts it to a string to pass
      * to the Main Activity in order to show it with processTimePickerResult().
      * @param view          The time picker view
      * @param hourOfDay     The hour chosen
      * @param minute        The minute chosen
      */
     public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
         // Set the activity to the Main Activity.
         MainActivity activity = (MainActivity) getActivity();
         // Invoke Main Activity's processTimePickerResult() method.
         activity.processTimePickerResult(hourOfDay, minute);
     }
 }