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Students list #15
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,14 +1,204 @@ | ||
| package ru.ok.technopolis.students; | ||
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| import android.app.Activity; | ||
| import android.os.Bundle; | ||
| import android.support.v7.widget.LinearLayoutManager; | ||
| import android.support.v7.widget.RecyclerView; | ||
| import android.view.View; | ||
| import android.widget.Button; | ||
| import android.widget.CheckBox; | ||
| import android.widget.EditText; | ||
| import android.widget.ImageView; | ||
| import android.widget.Toast; | ||
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|
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Random; | ||
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| public class MainActivity extends Activity { | ||
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| private List<Student> students; | ||
| private StudentAdapter studentAdapter; | ||
| private Student currentStudent; | ||
| private Student prevStudent; | ||
| private final Student DEFAULTPREV = new Student(" ", " ", false, android.R.color.transparent); | ||
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|
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| @Override | ||
| protected void onCreate(Bundle savedInstanceState) { | ||
| super.onCreate(savedInstanceState); | ||
| setContentView(R.layout.activity_main); | ||
| RecyclerView recyclerView = findViewById(R.id.list); | ||
| students = new ArrayList<>(); | ||
| prevStudent = DEFAULTPREV; | ||
| studentAdapter = new StudentAdapter(students, new StudentAdapter.Listener() { | ||
| @Override | ||
| public void onStudentClick(Student student) { | ||
| EditText firstName = findViewById(R.id.first_name_info); | ||
| firstName.setText(student.getFirstName()); | ||
| if (student.getFirstName().equals("")) { | ||
| firstName.setHint(R.string.default_firstname); | ||
| } | ||
| EditText secondName = findViewById(R.id.second_name_info); | ||
| secondName.setText(student.getSecondName()); | ||
| if (student.getSecondName().equals("")) { | ||
| secondName.setHint(R.string.default_secondname); | ||
| } | ||
| ImageView photo = findViewById(R.id.big_photo); | ||
| photo.setImageResource(student.getPhoto()); | ||
| CheckBox checkBox = findViewById(R.id.checkbox); | ||
| checkBox.setChecked(student.isMaleGender()); | ||
| student.setInFocus(true); | ||
| if (currentStudent != null) { | ||
| prevStudent = currentStudent; | ||
| } | ||
| currentStudent = student; | ||
| if (!prevStudent.equals(currentStudent)) { | ||
| prevStudent.setInFocus(false); | ||
| } | ||
| studentAdapter.notifyDataSetChanged(); | ||
| } | ||
| }); | ||
| recyclerView.setAdapter(studentAdapter); | ||
| LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this); | ||
| recyclerView.setLayoutManager(linearLayoutManager); | ||
| setupAddButton(); | ||
| setupDeleteButton(); | ||
| setupSaveButton(); | ||
| } | ||
|
|
||
| private void setupAddButton() { | ||
| Button addButton = findViewById(R.id.add_button); | ||
| addButton.setOnClickListener(new View.OnClickListener() { | ||
| @Override | ||
| public void onClick(View v) { | ||
| Random random = new Random(); | ||
| boolean maleGender = random.nextBoolean(); | ||
| int startPhoto = 0; | ||
| if (maleGender) { | ||
| switch (random.nextInt(3)) { | ||
| case 0: startPhoto = R.drawable.male_1; | ||
| break; | ||
| case 1: startPhoto = R.drawable.male_2; | ||
| break; | ||
| case 2: startPhoto = R.drawable.male_3; | ||
| break; | ||
| } | ||
| } else { | ||
| switch (random.nextInt(3)) { | ||
| case 0: startPhoto = R.drawable.female_1; | ||
| break; | ||
| case 1: startPhoto = R.drawable.female_2; | ||
| break; | ||
| case 2: startPhoto = R.drawable.female_3; | ||
| break; | ||
| } | ||
| } | ||
| students.add(new Student("", "", maleGender, startPhoto)); | ||
| studentAdapter.notifyDataSetChanged(); | ||
| } | ||
| }); | ||
| } | ||
|
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||
| private void setupDeleteButton() { | ||
| Button deleteButton = findViewById(R.id.delete_button); | ||
| deleteButton.setOnClickListener(new View.OnClickListener() { | ||
| @Override | ||
| public void onClick(View v) { | ||
| int size = students.size(); | ||
| if (size != 0) { | ||
| if (size > 1) { | ||
| int index = students.indexOf(currentStudent); | ||
| if (index == 0) { | ||
| ++index; | ||
| } else { | ||
| if (index == size - 1) { | ||
| --index; | ||
| } else { | ||
| ++index; | ||
| } | ||
| } | ||
| Student tempStd = currentStudent; | ||
| currentStudent = students.get(index); | ||
| currentStudent.setInFocus(true); | ||
| students.remove(tempStd); | ||
| EditText firstName = findViewById(R.id.first_name_info); | ||
| firstName.setText(currentStudent.getFirstName()); | ||
| EditText secondName = findViewById(R.id.second_name_info); | ||
| secondName.setText(currentStudent.getSecondName()); | ||
| ImageView photo = findViewById(R.id.big_photo); | ||
| photo.setImageResource(currentStudent.getPhoto()); | ||
| CheckBox checkBox = findViewById(R.id.checkbox); | ||
| checkBox.setChecked(currentStudent.isMaleGender()); | ||
| } else { | ||
| students.remove(currentStudent); | ||
| currentStudent = null; | ||
| prevStudent = DEFAULTPREV; | ||
| EditText firstName = findViewById(R.id.first_name_info); | ||
| firstName.setText(""); | ||
| firstName.setHint(R.string.default_firstname); | ||
| EditText secondName = findViewById(R.id.second_name_info); | ||
| secondName.setText(""); | ||
| secondName.setHint(R.string.default_secondname); | ||
| ImageView photo = findViewById(R.id.big_photo); | ||
| photo.setImageResource(android.R.color.transparent); | ||
| CheckBox checkBox = findViewById(R.id.checkbox); | ||
| checkBox.setChecked(false); | ||
| } | ||
| } | ||
| studentAdapter.notifyDataSetChanged(); | ||
| } | ||
| }); | ||
| } | ||
|
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||
| private void setupSaveButton() { | ||
| Button saveButton = findViewById(R.id.save_button); | ||
| saveButton.setOnClickListener(new View.OnClickListener() { | ||
| @Override | ||
| public void onClick(View v) { | ||
| if (currentStudent != null) { | ||
| EditText firstNameInfo = findViewById(R.id.first_name_info); | ||
| EditText secondNameInfo = findViewById(R.id.second_name_info); | ||
| firstNameInfo.setText(firstNameInfo.getText().toString().trim().replace("\n", "").replace(" ", "")); | ||
| secondNameInfo.setText(secondNameInfo.getText().toString().trim().replace("\n", "").replace(" ", "")); | ||
| if (!firstNameInfo.getText().toString().equals("") && | ||
| !secondNameInfo.getText().toString().equals("")) { | ||
| int index = students.indexOf(currentStudent); | ||
| currentStudent.setFirstName(firstNameInfo.getText().toString()); | ||
| currentStudent.setSecondName(secondNameInfo.getText().toString()); | ||
| ImageView image = findViewById(R.id.big_photo); | ||
| CheckBox checkBox = findViewById(R.id.checkbox); | ||
| if (checkBox.isChecked() != currentStudent.isMaleGender()) { | ||
| Random random = new Random(); | ||
| if (checkBox.isChecked()) { | ||
| switch (random.nextInt(3)) { | ||
| case 0: currentStudent.setPhoto(R.drawable.male_1); | ||
| break; | ||
| case 1: currentStudent.setPhoto(R.drawable.male_2); | ||
| break; | ||
| case 2: currentStudent.setPhoto(R.drawable.male_3); | ||
| break; | ||
| } | ||
| } else { | ||
| switch (random.nextInt(3)) { | ||
| case 0: currentStudent.setPhoto(R.drawable.female_1); | ||
| break; | ||
| case 1: currentStudent.setPhoto(R.drawable.female_2); | ||
| break; | ||
| case 2: currentStudent.setPhoto(R.drawable.female_3); | ||
| break; | ||
| } | ||
| } | ||
| } | ||
| image.setImageResource(currentStudent.getPhoto()); | ||
| currentStudent.setMaleGender(checkBox.isChecked()); | ||
| students.set(index, currentStudent); | ||
| studentAdapter.notifyDataSetChanged(); | ||
| } | ||
| else { | ||
| Toast.makeText(MainActivity.this, R.string.toast_invalid, Toast.LENGTH_SHORT).show(); | ||
| } | ||
| } | ||
| } | ||
| }); | ||
| } | ||
| } | ||
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Лучше DEFAULT_PREV
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Почему вместо id фото стоит цвет?