Toshkent axborot texnologiyalari universiteti dasturiy vositalar xavfsizligi

SharedPreference-da qiymatlarni o'rnatish:


Общие рекомендации.Редактор редактор = getSharedPreferences(ИМЯ_ПРЕФИКСА, ИМЯ_МОДЕЛИ).редактировать();
editor.putString(“имя”, “Елена”);
editor.putInt(“idName”, 12);
editor.apply();


SharedPreference-dan ma'lumotlarni olish:


SharedPreferences prefs = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE);
// Значение по умолчанию не определено.
Имя строки = prefs.getString(“имя”, “Имя не определено”);
// 0 - значение по умолчанию.
int idName = prefs.getInt(“idName”, 0);
Quyida NoteEditorActivity.java faylining toʻliq kodi keltirilgan. Kodni batafsilroq tushunish uchun sharhlar kod ichiga qo'shiladi.


Java
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.widget.EditText;
import androidx.appcompat.app.AppCompatActivity;
import java.util.HashSet;


public class NoteEditorActivity extends AppCompatActivity {
int noteId;


@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_note_editor);


EditText editText = findViewById(R.id.editText);


// Fetch data that is passed from MainActivity
Intent intent = getIntent();


// Accessing the data using key and value
noteId = intent.getIntExtra("noteId", -1);
if (noteId != -1) {
editText.setText(MainActivity.notes.get(noteId));
} else {


MainActivity.notes.add("");
noteId = MainActivity.notes.size() - 1;
MainActivity.arrayAdapter.notifyDataSetChanged();


}


editText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
// add your code here
}


@Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
MainActivity.notes.set(noteId, String.valueOf(charSequence));
MainActivity.arrayAdapter.notifyDataSetChanged();
// Creating Object of SharedPreferences to store data in the phone
SharedPreferences sharedPreferences = getApplicationContext().getSharedPreferences("com.example.notes", Context.MODE_PRIVATE);
HashSet set = new HashSet(MainActivity.notes);
sharedPreferences.edit().putStringSet("notes", set).apply();
}


@Override
public void afterTextChanged(Editable editable) {
// add your code here
}
});
}
}