Android Open Source - AndroidPINProtectionExample Create Pin Fragment

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Back to project page AndroidPINProtectionExample.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.example.pinexample.fragments;
//from www  .j av a 2  s  .c o  m
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.example.pinexample.R;
import com.example.pinexample.ui.StartActivity;
import com.example.pinexample.utilities.Log;
import com.example.pinexample.utilities.Utilities;
import com.example.pinexample.utilities.NumpadKeyboard;

/**
 * A fragment for creating the PIN number
 * @author bojan.i
 *
 */
public final class CreatePinFragment extends Fragment {
  
  private View main, numpad;
  private EditText pin_main, pin_copy;
    private Button save,skip;
    private SharedPreferences prefs;
  
  private static final String KEY_CONTENT = "CreatePinFragment:Content";
  private int mContent = -1;
  
  protected ViewGroup mapContainer;
  
  // Singleton
  public static volatile CreatePinFragment fragment = null;
  // Initialize the MainFragment instance
  public static CreatePinFragment newInstance(int content) {
    Log.d(Log.TAG, "newInstance() is called...");
    if (fragment == null) {
      synchronized (CreatePinFragment.class) {
        if (fragment == null) {
          fragment = new CreatePinFragment();
          fragment.mContent = content;
        }
      }
    }
    return fragment;
  }

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // for debuging
    Log.d(Log.TAG, "onCreate() is called...");
    prefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
    if ((savedInstanceState != null)
        && savedInstanceState.containsKey(KEY_CONTENT)) {
      mContent = savedInstanceState.getInt(KEY_CONTENT);
    }
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    // for debuging
    Log.d(Log.TAG, "onCreateView() is called...");
    
      main =  inflater.inflate(R.layout.activity_create_pin, null);
      initViews();
    return main;
  }

  @Override
  public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    
    // for debuging
    Log.d(Log.TAG, "onSaveInstanceState() is called...");
    outState.putInt(KEY_CONTENT, mContent);
  }
  
  /**
   * Initialize the views and set the click listeners
   */
  private void initViews(){
    numpad = main.findViewById(R.id.numpad);
    pin_main = (EditText) main.findViewById(R.id.pinOriginal);
    pin_copy = (EditText) main.findViewById(R.id.pinCopy);
    pin_main.setCursorVisible(false);
    pin_copy.setCursorVisible(false);
    pin_main.setFocusable(false);
    pin_copy.setFocusable(false);
    
    // Initialize the NumpadKeyboard on the clicked EditText
    pin_main.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        new NumpadKeyboard(getActivity(), numpad, pin_main);
      }
    });
    pin_copy.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        new NumpadKeyboard(getActivity(), numpad, pin_copy);
      }
    });
    
    skip = (Button)main.findViewById(R.id.pinSkip);
    skip.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View arg0) {
        Editor e = prefs.edit();
            e.putBoolean("initialized", true);
            e.commit();
        startActivity(new Intent(getActivity(), StartActivity.class));
        getActivity().finish();
      }});
    
    // save the PIN, set the preference variable, or skip to the StartActivity
    save = (Button)main.findViewById(R.id.pinSave);
        save.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        String pin1 = pin_main.getText().toString().trim();
        String pin2 = pin_copy.getText().toString().trim();
        // check if the pins are 4 digits
        if(pin1.length()==4 && pin2.length()==4){
          // check if the pins are equal
          if(pin1.equalsIgnoreCase(pin2)){
            // pins are equal, start the app, and set the init. pref to true
            // set the firstRun to true
            Editor e = prefs.edit();
                e.putBoolean("initialized", true);
                e.putString("pin", Utilities.sha1Hash(pin1));
                e.commit();
            startActivity(new Intent(getActivity(), StartActivity.class));
            getActivity().finish();
          } else {Toast.makeText(getActivity(), 
                R.string.pins_do_not_match, 
                  Toast.LENGTH_SHORT).show();}
        } else {Toast.makeText(getActivity(), 
              R.string.pin_length_error, 
                Toast.LENGTH_SHORT).show();}
      }
    });
  }
}

Java Source Code List

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