Android Open Source - passwordcard-android Main Activity

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Back to project page passwordcard-android.

License

The source code is released under:

GNU General Public License

Java Source Code

package cl.flu0.passcard;
//  w  w  w .  j  a  va  2 s  .  c o m
import java.util.Locale;
import java.util.Random;

import android.support.v7.app.ActionBarActivity;
import android.text.Editable;
import android.text.TextWatcher;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;
import android.widget.TextView;

import org.pepsoft.passwordcard.*;
import org.pepsoft.util.*;

public class MainActivity extends ActionBarActivity {
  
  private final TextWatcher cardIdTextWatcher = new TextWatcher() {
    @Override
    public void beforeTextChanged(CharSequence s, int start, int count,  int after) {}
    
    @Override
    public void afterTextChanged(Editable s) {
            genPassCard();
    }
    
    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {}
  };

  private PasswordCard pCard;
  
  private long pCardId;
  private boolean incDigit = false;
  private boolean incSymbols = false;
  
  private TextView txvCardContent;
  private Typeface freeMono;
  private EditText etxCardId;
  private Button btnRndId;
  private CheckBox cbxIncNumbers;
  private CheckBox cbxIncSymbols;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    
    setUp();
  }

  private void setUp() {
    if (txvCardContent == null) {
      txvCardContent = (TextView) findViewById(R.id.txvCardContent);
      freeMono = Typeface.createFromAsset(getAssets(),"fonts/FreeMono.ttf");
      txvCardContent.setTypeface(freeMono);
    }
    
    if (etxCardId == null) {
      etxCardId = (EditText) findViewById(R.id.etxCardId);
      etxCardId.addTextChangedListener(cardIdTextWatcher);
    }
    
    if (btnRndId == null) {
      btnRndId = (Button) findViewById(R.id.btnRndId);
      btnRndId.setOnClickListener(new OnClickListener() {
        
        @Override
        public void onClick(View v) {
          genRndPassCardId();
        }
      });
    }
    
    if (cbxIncNumbers == null) {
      cbxIncNumbers = (CheckBox) findViewById(R.id.cbxIncNumbers);
      cbxIncNumbers.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
          genPassCard();
        }
      });
    }
    
    if (cbxIncSymbols == null) {
      cbxIncSymbols = (CheckBox) findViewById(R.id.cbxIncSymbols);
      cbxIncSymbols.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
          genPassCard();
        }
      });
    }
  }
  
  private void genPassCard() {
    if (etxCardId.getText().toString().isEmpty()) {
      txvCardContent.setText("");
      return;
    }
    
    pCardId = Tool.parseUnsignedHexLong(etxCardId.getText().toString());
    
    incDigit = cbxIncNumbers.isChecked();
    incSymbols = cbxIncSymbols.isChecked();
    
    pCard = new PasswordCard(pCardId, incDigit, incSymbols);
    txvCardContent.setText(pCard.getAsString("\n"));
  }
  
  private void genRndPassCardId() {
    etxCardId.setText(getRandomHexString(16).toUpperCase(Locale.US));
  }
  
  // From http://stackoverflow.com/questions/14622622 
  private String getRandomHexString(int numchars) {
        Random r = new Random();
        StringBuffer sb = new StringBuffer();
        while(sb.length() < numchars){
            sb.append(Integer.toHexString(r.nextInt()));
        }

        return sb.toString().substring(0, numchars);
    }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
      return true;
    }
    return super.onOptionsItemSelected(item);
  }
}

Java Source Code List

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