s473620/AES-secured-notepad
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dodane usuwanie i edycja notatek

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This commit is contained in:
mikgaw@st.amu.edu.pl 2023-12-05 00:09:14 +01:00
parent 44b13e4377
commit 06e5e3c578
3 changed files with 120 additions and 54 deletions
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125
app/src/main/java/com/example/bsm_notatnik/MainActivity.java
View File

@ -1,4 +1,5 @@
package com.example.bsm_notatnik;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
@ -28,8 +29,6 @@ public class MainActivity extends AppCompatActivity {
private static final String SHARED_NAME_CREDENTIALS = "Credentials";
private static final String SHARED_NOTES_NAME = "Notes";
private static final String KEY_NOTE_COUNT = "NoteCount";
private static String HASHED_EMAIL = "";
private List<Note> noteList;
@ -50,31 +49,20 @@ public class MainActivity extends AppCompatActivity {
loadNotesFromPreferences();
displayNotes();
buttonLogout = findViewById(R.id.btn_logout);
buttonChangePassword = findViewById(R.id.btn_change_password);
buttonAddNewNote = findViewById(R.id.btn_add_note);
buttonLogout.setOnClickListener(view -> logOut());
buttonChangePassword.setOnClickListener(view -> showPasswordChangeDialog(current_username_hashed));
buttonAddNewNote.setOnClickListener(view -> {
showAddNewNoteDialog();
});
buttonAddNewNote.setOnClickListener(view -> showAddNewNoteDialog());
}
private void logOut(){
Toast.makeText(getApplicationContext(), "Logout Successful!", Toast.LENGTH_SHORT).show();
@ -84,8 +72,6 @@ public class MainActivity extends AppCompatActivity {
}
private void showPasswordChangeDialog(String hashedEmail){
// Inflate the dialog layout
LayoutInflater inflater = getLayoutInflater();
@ -158,9 +144,10 @@ public class MainActivity extends AppCompatActivity {
note.setTitle(title);
note.setContent(content);
noteList.add(note);
saveNotesToPreferences();
saveNotesToPreferences("add");
createNoteView(note);
}
@ -174,6 +161,43 @@ public class MainActivity extends AppCompatActivity {
}
private void showEditNoteDialog(Note note){
LayoutInflater inflater = getLayoutInflater();
View dialogView = inflater.inflate(R.layout.create_note_dialog, null);
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setView(dialogView);
builder.setTitle("Edit note");
builder.setPositiveButton("Save", (dialogInterface, i) -> {
EditText noteTitleEditText = dialogView.findViewById(R.id.noteTitleEditText);
EditText noteContentEditText = dialogView.findViewById(R.id.noteContentEditText);
String title = noteTitleEditText.getText().toString();
String content = noteContentEditText.getText().toString();
if (!title.isEmpty() && !content.isEmpty()){
deleteNoteAndRefresh(note);
note.setTitle(title);
note.setContent(content);
noteList.add(note);
saveNotesToPreferences("add");
createNoteView(note);
}
Toast.makeText(MainActivity.this, "Note Edited!", Toast.LENGTH_SHORT).show();
});
builder.setNegativeButton("Cancel", (dialogInterface, i) -> dialogInterface.dismiss());
AlertDialog alertDialog = builder.create();
alertDialog.show();
}
@ -220,28 +244,14 @@ public class MainActivity extends AppCompatActivity {
return sharedPreferences.getString("user_" + hashedEmail, "err");
}
private void saveNote(){
EditText noteTitleEditText = findViewById(R.id.noteTitleEditText);
EditText noteContentEditText = findViewById(R.id.noteContentEditText);
String title = noteTitleEditText.getText().toString();
String content = noteContentEditText.getText().toString();
if (!title.isEmpty() && !content.isEmpty()){
Note note = new Note();
note.setTitle(title);
note.setContent(content);
noteList.add(note);
saveNotesToPreferences();
//createNoteView(note);
}
}
private void saveNotesToPreferences(){
private void saveNotesToPreferences(String mode){
SharedPreferences sharedPreferences = getSharedPreferences(SHARED_NOTES_NAME, MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPreferences.edit();
if (mode.equals("del")){
editor.clear();
}
editor.putInt("notecount_" + HASHED_EMAIL, noteList.size());
for(int i=0; i<noteList.size(); i++){
@ -252,6 +262,7 @@ public class MainActivity extends AppCompatActivity {
editor.apply();
}
private void loadNotesFromPreferences(){
SharedPreferences sharedPreferences = getSharedPreferences(SHARED_NOTES_NAME, MODE_PRIVATE);
int noteCount = sharedPreferences.getInt("notecount_" + HASHED_EMAIL, 0);
@ -268,16 +279,54 @@ public class MainActivity extends AppCompatActivity {
}
}
private void createNoteView(final Note note){
View noteView = getLayoutInflater().inflate(R.layout.note_item, null);
TextView noteTitleTextView = noteView.findViewById(R.id.noteTitleTextView);
TextView noteContentTextView = noteView.findViewById(R.id.noteContentTextView);
Button deleteNoteDutton = noteView.findViewById(R.id.btnDeleteNote);
noteTitleTextView.setText(note.getTitle());
noteContentTextView.setText(note.getContent());
deleteNoteDutton.setOnClickListener(view -> {
showDeleteDialog(note);
});
noteView.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View view) {
showEditNoteDialog(note);
return true;
}
});
notesContainer.addView(noteView);
}
private void showDeleteDialog(final Note note){
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Delete this note");
builder.setMessage("Are you sure you want to delete it?");
builder.setPositiveButton("Delete", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
deleteNoteAndRefresh(note);
}
});
builder.setNegativeButton("Cancel", null);
builder.show();
}
private void deleteNoteAndRefresh(Note note){
noteList.remove(note);
saveNotesToPreferences("del");
refreshNotesView();
}
private void refreshNotesView(){
@ -291,7 +340,5 @@ public class MainActivity extends AppCompatActivity {
}
}
}

5
app/src/main/java/com/example/bsm_notatnik/Note.java
View File

@ -4,11 +4,13 @@ public class Note {
private String title;
private String content;
private int id;
public Note(){
}
public Note(String title, String content){
public Note(String title, String content, int id){
this.title = title;
this.content = content;
}
@ -28,4 +30,5 @@ public class Note {
public void setContent(String content) {
this.content = content;
}
}

20
app/src/main/res/layout/note_item.xml
View File

@ -2,9 +2,15 @@
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:orientation="horizontal"
android:padding="8dp">
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="@+id/noteTitleTextView"
android:layout_width="match_parent"
@ -21,5 +27,15 @@
android:layout_marginTop="4dp"
android:text="Note Content"
/>
</LinearLayout>
<!-- Delete Button -->
<Button
android:id="@+id/btnDeleteNote"
android:layout_width="40dp"
android:layout_height="wrap_content"
android:padding="0dp"
android:text="X"
android:layout_marginLeft="10dp"
/>
</LinearLayout>