Android Open Source - personal-diary Password Activity

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License

The source code is released under:

GNU Lesser General Public License

Java Source Code

package com.rahul.pDiary;
/* ww  w. j a v  a2  s.  co  m*/
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.google.ads.AdRequest;
import com.google.ads.AdView;

public class PasswordActivity extends Activity implements OnClickListener {
  static final String TAG = "PasswordActivity";
  static final int PASS_DIALOG = 0;
  EditText editPassword;
  TextView forgot, fp_question;
  Button buttonOk, fp_ok;

  private AdView adView;
  AlertDialog dialog;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    if(DiaryApp.isThemeDark()) setTheme(android.R.style.Theme_DeviceDefault);
    else setTheme(android.R.style.Theme_DeviceDefault_Light);
    
    super.onCreate(savedInstanceState);
    final String secret = ((DiaryApp) getApplication()).prefs.getString(
        "pref_password", "");
    if (secret.equals("")) {
      SharedPreferences settings = getSharedPreferences("dontRemindMe", 0);
      int reminder = settings.getInt("dontRemindMe", 0);
      if (reminder == 1)
        startActivity(new Intent(this, MenuActivity.class));
      else
        startActivity(new Intent(this, GoProActivity.class));
    }

    setContentView(R.layout.password_activity);

    editPassword = (EditText) findViewById(R.id.editText_password);
    getWindow().setSoftInputMode(
        WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);

    buttonOk = (Button) findViewById(R.id.button_ok);
    buttonOk.setOnClickListener(this);

    forgot = (TextView) findViewById(R.id.textView_forgot_password);
    forgot.setOnClickListener(this);

    adView = (AdView) findViewById(R.id.ad_banner);
  }

  @Override
  protected void onResume() {
    super.onResume();
    try {
      // Create the adView
      AdRequest adRequest;

      // Add request
      adRequest = new AdRequest();
      adRequest.addTestDevice(AdRequest.TEST_EMULATOR);
      adView.loadAd(adRequest);
    } catch (Exception e) {
      Log.d(TAG, "Error is here");
      e.printStackTrace();
    }
  }

  @Override
  public void onDestroy() {
    if (adView != null) {
      adView.destroy();
    }
    super.onDestroy();
  }

  @Override
  protected void onStop() {
    super.onStop();
    Log.d(TAG, "onStop");
    finish();
  }

  void checkPassword() {
    final String pwd = editPassword.getText().toString();
    final String secret = ((DiaryApp) getApplication()).prefs.getString(
        "pref_password", "");
    if (!pwd.equals(secret))
      Toast.makeText(PasswordActivity.this, "Wrong Password!",
          Toast.LENGTH_SHORT).show();
    else {
      SharedPreferences settings = getSharedPreferences("dontRemindMe", 0);
      int reminder = settings.getInt("dontRemindMe", 0);
      if (reminder == 1)
        startActivity(new Intent(this, MenuActivity.class));
      else
        startActivity(new Intent(this, GoProActivity.class));
    }
  }

  public void onClick(View v) {
    if (v.getId() == R.id.button_ok) {
      checkPassword();
    }
    if (v.getId() == R.id.button_fp_ok) {
      EditText e = (EditText) dialog
          .findViewById(R.id.editText_security_answer);
      String userAnswer = e.getText().toString();
      forgotPassword(userAnswer);
    }
    if (v.getId() == R.id.textView_forgot_password) {
      showDialog(PASS_DIALOG);
    }
  }

  void wrongPasswordAlert() {
    AlertDialog.Builder alertDialog = new AlertDialog.Builder(this);
    alertDialog.setTitle("Alert");
    alertDialog.setMessage("Wrong Answer");
    alertDialog.setPositiveButton("OK",
        new DialogInterface.OnClickListener() {
          public void onClick(DialogInterface dialog, int which) {
            // Do nothing
          }
        });
    alertDialog.show();
  }

  // Forgot password
  void forgotPassword(String userAnswer) {
    String answer = PreferenceManager.getDefaultSharedPreferences(this)
        .getString("security_answer", "null");
    if (answer.equals(userAnswer)) {
      startActivity(new Intent(this, PrefsActivity.class));
    } else {
      dialog.cancel();
      wrongPasswordAlert();
    }
  }

  @Override
  protected Dialog onCreateDialog(int id) {
    switch (id) {
    case PASS_DIALOG:
      LayoutInflater lo = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
      View passwordView = lo.inflate(R.layout.password_dialog,
          (LinearLayout) findViewById(R.id.password_dialog_root));

      AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);

      dialogBuilder.setTitle("Security question");
      dialogBuilder.setView(passwordView);
      dialog = dialogBuilder.create();

      return dialog;
    default:
      break;
    }
    return null;
  }

  @Override
  protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
    switch (id) {
    case PASS_DIALOG:
      String q = ((DiaryApp) getApplication()).prefs.getString(
          "security_question", "null");
      Log.d(TAG, q);

      fp_question = (TextView) dialog
          .findViewById(R.id.textView_security_question);
      fp_question.setText(q);

      fp_ok = (Button) dialog.findViewById(R.id.button_fp_ok);
      fp_ok.setOnClickListener(this);
    }
    super.onPrepareDialog(id, dialog, args);
  }

}

Java Source Code List

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