Android Open Source - android-notes Notes

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License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

Java Source Code

package org.thomasheller.android.notes;
/*from   ww  w.  j a  v  a 2s. c  o  m*/
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.view.MenuItem;
import android.view.Window;
import android.widget.EditText;

public class Notes extends Activity implements TextWatcher {

  private static final String PREFERENCES_FILE = "notes_storage";
  private static final String PREFERENCES_KEY = "user_notes";

  private EditText editText;
  private SharedPreferences storage;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_notes);
    editText = (EditText) findViewById(R.id.editText);
    editText.addTextChangedListener(this);
    storage = getSharedPreferences(PREFERENCES_FILE, MODE_PRIVATE);
    restore();
    handleIntent(getIntent());
  }
  
  private void restore() {
    String notes = storage.getString(PREFERENCES_KEY, "");
    editText.setText(notes);
  }

  private void handleIntent(Intent intent) {
    String action = intent.getAction();
    String type = intent.getType();
    if (Intent.ACTION_SEND.equals(action) && "text/plain".equals(type)) {
      String text = intent.getStringExtra(Intent.EXTRA_TEXT);
      if (editText.length() > 0) {
        editText.append("\n");
      }
      editText.append(text);
      editText.setSelection(editText.getText().length());
    }
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.activity_notes, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
      case R.id.menu_share:
        share();
        return true;
      case R.id.menu_delete:
        delete();
        return true;
      case R.id.menu_bullet:
        bullet();
        return true;
      default:
        return super.onOptionsItemSelected(item);
    }
  }

  private void share() {
    Intent intent = new Intent(android.content.Intent.ACTION_SEND);
    intent.setType("text/plain");
    intent.putExtra(android.content.Intent.EXTRA_TEXT, editText.getText());
    String title = getResources().getString(R.string.share_intent_title);
    Intent.createChooser(intent, title);
    startActivity(intent);
  }

  private void delete() {
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setTitle(R.string.delete_title);
    builder.setMessage(R.string.delete_message);
    builder.setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        editText.setText("");
      }
    });
    builder.setNegativeButton(R.string.no, null);
    builder.create().show();
  }

  private void bullet() {
    String text = editText.getText().toString();
    String insert = getResources().getString(R.string.bullet_template);
    int cursorPosition = editText.getSelectionEnd();
    if (cursorPosition == 0) {
      String newText = insert + "\n" + text;
      editText.setText(newText);
      editText.setSelection(insert.length());
    } else {
      int nextNewline = text.indexOf('\n', cursorPosition);
      if (nextNewline == -1) {
        nextNewline = text.length();
      }
      String textBefore = text.substring(0, nextNewline);
      String textAfter = text.substring(nextNewline);
      String newText = textBefore + "\n" + insert + textAfter;
      editText.setText(newText);
      editText.setSelection(nextNewline + insert.length() + 1);
    }
  }

  @Override
  public void afterTextChanged(Editable s) {
    String text = editText.getText().toString();
    SharedPreferences.Editor editor = storage.edit();
    editor.putString(PREFERENCES_KEY, text);
    editor.commit();
  }

  @Override
  public void beforeTextChanged(CharSequence s, int start, int count, int after) {
  }

  @Override
  public void onTextChanged(CharSequence s, int start, int before, int count) {
  }
}

Java Source Code List

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