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First impl #21
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First impl #21
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127 changes: 126 additions & 1 deletion
127
app/src/main/java/ru/ok/technopolis/students/MainActivity.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,14 +1,139 @@ | ||
| package ru.ok.technopolis.students; | ||
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| import android.support.v7.app.AppCompatActivity; | ||
| import android.os.Bundle; | ||
| import android.support.v7.app.AppCompatActivity; | ||
| import android.support.v7.widget.LinearLayoutManager; | ||
| import android.support.v7.widget.RecyclerView; | ||
| import android.text.TextUtils; | ||
| import android.widget.Button; | ||
| import android.widget.CheckBox; | ||
| import android.widget.EditText; | ||
| 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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| import de.hdodenhof.circleimageview.CircleImageView; | ||
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| public class MainActivity extends AppCompatActivity { | ||
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| private List<Student> students; | ||
| private StudentAdapter studentAdapter; | ||
| private int pics[]; | ||
| private Student currentStudent; | ||
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| @Override | ||
| protected void onCreate(Bundle savedInstanceState) { | ||
| super.onCreate(savedInstanceState); | ||
| students = new ArrayList<>(); | ||
| pics = new int[6]; | ||
| currentStudent = null; | ||
| setContentView(R.layout.activity_main); | ||
| setupRecyclerView(); | ||
| setupAddButton(); | ||
| setupSaveButton(); | ||
| setupDeleteButton(); | ||
| setupPics(); | ||
| } | ||
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| private void setupRecyclerView() { | ||
| RecyclerView recyclerView = findViewById(R.id.activity_main__rv_students); | ||
| studentAdapter = new StudentAdapter(students, this::onStudentClick); | ||
| recyclerView.setAdapter(studentAdapter); | ||
| LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this); | ||
| recyclerView.setLayoutManager(linearLayoutManager); | ||
| } | ||
|
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| private void setupPics() { | ||
| pics[0] = R.drawable.male_1; | ||
| pics[1] = R.drawable.male_2; | ||
| pics[2] = R.drawable.male_3; | ||
| pics[3] = R.drawable.female_1; | ||
| pics[4] = R.drawable.female_2; | ||
| pics[5] = R.drawable.female_3; | ||
| } | ||
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| private void setupAddButton() { | ||
| Button button = findViewById(R.id.activity_main__btn_add); | ||
| button.setOnClickListener(v -> onAddClick()); | ||
| } | ||
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| private void onAddClick() { | ||
| setupEdit("", "", false, 0); | ||
| currentStudent = new Student("", "", false, 0); | ||
| } | ||
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| private void setupEdit(String name, String familyName, Boolean isMale, int pic) { | ||
| EditText nameEdit = findViewById(R.id.names_layout__edit_name); | ||
| EditText familyNameEdit = findViewById(R.id.names_layout__edit_fname); | ||
| CheckBox male = findViewById(R.id.sex_layout__checkbox); | ||
| CircleImageView pics = findViewById(R.id.data_layout__edit_img); | ||
| nameEdit.setText(name); | ||
| familyNameEdit.setText(familyName); | ||
| male.setChecked(isMale); | ||
| pics.setImageResource(pic); | ||
| } | ||
|
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| private void setupSaveButton() { | ||
| Button button = findViewById(R.id.cl_edit__save); | ||
| button.setOnClickListener(v -> onSaveClick()); | ||
| } | ||
|
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| private void setupDeleteButton() { | ||
| Button button = findViewById(R.id.cl_edit__delete); | ||
| button.setOnClickListener(v -> onDeleteClick()); | ||
| } | ||
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| private void onDeleteClick() { | ||
| if (currentStudent == null) { | ||
| Toast.makeText(this, R.string.empty_student, Toast.LENGTH_SHORT).show(); | ||
| } else { | ||
| students.remove(currentStudent); | ||
| currentStudent = null; | ||
| studentAdapter.notifyDataSetChanged(); | ||
| setupEdit("", "", Boolean.FALSE, 0); | ||
| } | ||
| } | ||
|
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| private void onSaveClick() { | ||
| EditText name = findViewById(R.id.names_layout__edit_name); | ||
| EditText familyName = findViewById(R.id.names_layout__edit_fname); | ||
| CheckBox male = findViewById(R.id.sex_layout__checkbox); | ||
| CircleImageView pic = findViewById(R.id.data_layout__edit_img); | ||
| int picId; | ||
| if ((name.getText() != null) && (familyName.getText() != null)) { | ||
| if (TextUtils.isEmpty(name.getText().toString().trim()) | ||
| || TextUtils.isEmpty(familyName.getText().toString().trim())) { | ||
| Toast.makeText(this, R.string.wrong_enter, Toast.LENGTH_SHORT).show(); | ||
| } else { | ||
| if (currentStudent == null || currentStudent.getFirstName().equals("")) { | ||
| students.add(currentStudent = new Student(name.getText().toString().trim(), | ||
| familyName.getText().toString().trim(), | ||
| male.isChecked(), | ||
| picId = getRandomPick(male.isChecked()))); | ||
| pic.setImageResource(picId); | ||
| studentAdapter.notifyDataSetChanged(); | ||
| } else { | ||
| currentStudent.setFirstName(name.getText().toString().trim()); | ||
| currentStudent.setSecondName(familyName.getText().toString().trim()); | ||
| currentStudent.setMaleGender(male.isChecked()); | ||
| studentAdapter.notifyDataSetChanged(); | ||
| } | ||
| } | ||
| } | ||
|
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| } | ||
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| private int getRandomPick(Boolean isMale) { | ||
| Random random = new Random(); | ||
| int maleRandom = isMale ? 0 : 3; | ||
| return pics[maleRandom + random.nextInt(3)]; | ||
| } | ||
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| private void onStudentClick(Student student) { | ||
| setupEdit(student.getFirstName(), student.getSecondName(), student.isMaleGender(), student.getPhoto()); | ||
| currentStudent = student; | ||
| } | ||
|
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| } |
75 changes: 75 additions & 0 deletions
75
app/src/main/java/ru/ok/technopolis/students/StudentAdapter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| package ru.ok.technopolis.students; | ||
|
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| import android.support.annotation.NonNull; | ||
| import android.support.v7.widget.RecyclerView; | ||
| import android.view.LayoutInflater; | ||
| import android.view.View; | ||
| import android.view.ViewGroup; | ||
| import android.widget.TextView; | ||
|
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| import java.util.List; | ||
|
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| import de.hdodenhof.circleimageview.CircleImageView; | ||
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| public class StudentAdapter extends RecyclerView.Adapter<StudentAdapter.StudentViewHolder> { | ||
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| private final List<Student> students; | ||
| private final Listener onStudentClickListener; | ||
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| public StudentAdapter(List<Student> students, Listener onStudentClickListener) { | ||
| this.students = students; | ||
| this.onStudentClickListener = onStudentClickListener; | ||
| } | ||
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| @NonNull | ||
| @Override | ||
| public StudentViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) { | ||
| View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.student_item, viewGroup, false); | ||
| view.setOnClickListener(new View.OnClickListener() { | ||
| @Override | ||
| public void onClick(View v) { | ||
| onStudentClickListener.onStudentClick((Student) v.getTag()); | ||
| } | ||
| }); | ||
| return new StudentViewHolder(view); | ||
| } | ||
|
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| @Override | ||
| public void onBindViewHolder(@NonNull StudentViewHolder holder, final int position) { | ||
| Student student = students.get(position); | ||
| holder.bind(student); | ||
| holder.itemView.setTag(student); | ||
| } | ||
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| @Override | ||
| public int getItemCount() { | ||
| return students.size(); | ||
| } | ||
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| interface Listener { | ||
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| void onStudentClick(Student student); | ||
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| } | ||
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| static final class StudentViewHolder extends RecyclerView.ViewHolder { | ||
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| private final CircleImageView profileImage; | ||
| private final TextView nameTextView; | ||
| private final TextView familyNameTextView; | ||
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| public StudentViewHolder(@NonNull View itemView) { | ||
| super(itemView); | ||
| profileImage = itemView.findViewById(R.id.student_item__img); | ||
| nameTextView = itemView.findViewById(R.id.student_item__name); | ||
| familyNameTextView = itemView.findViewById(R.id.student_item__fname); | ||
| } | ||
|
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| private void bind(@NonNull Student student) { | ||
| nameTextView.setText(student.getFirstName()); | ||
| familyNameTextView.setText(student.getSecondName()); | ||
| profileImage.setImageResource(student.getPhoto()); | ||
| } | ||
|
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| } | ||
| } |
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Очень большая вложенность. Не стоит вкладывать констрейнт в констрейнт