Android Open Source - android-pwgen Main Activity

• Back to Password/generator  ↑

From Project

Back to project page android-pwgen.

License

The source code is released under:

GNU General Public License

Java Source Code

package ws.fiae.android.pwgen;
//from ww w .j av a 2s. c  o m
import android.app.*;
import android.os.*;
import android.view.*;
import android.widget.*;

public class MainActivity extends Activity
{
  
  private static final String DEFAULT_LETTERS = "abcdefghijklmnopqrstuvwxyz";
  private static final String DEFAULT_LETTERS_UPPERCASE = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
  private static final String DEFAULT_INTEGERS = "0123456789";
  private static final String DEFAULT_EASY_A = "bcdfghjklmnpqrstvwxyz";
  private static final String DEFAULT_EASY_B = "aeiou";
  
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
  {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    
    // Set Spinner Data
    Spinner spnr = (Spinner)this.findViewById(R.id.length_spinner);
    String[] spnrdata = new String[100];
    for(int i=0; i<100; i++) {
      spnrdata[i] = Integer.toString((i+1));
    }
    
    ArrayAdapter<String> adr = new ArrayAdapter<String>(this, 
      android.R.layout.simple_spinner_item, spnrdata);
    
    spnr.setAdapter(adr);
    spnr.setSelection(11);
    
    this.selfDestruct(null);
    
    }
  
  public void selfDestruct(View view) {
    RadioGroup type = (RadioGroup) findViewById(R.id.radiogroup);
    int selected_type = type.getCheckedRadioButtonId();
    
    String chars="";
    switch(selected_type) {
        
      case R.id.type_integers:
        chars = DEFAULT_INTEGERS;
        break;
        
      case R.id.type_letters_both:
        chars = DEFAULT_LETTERS+DEFAULT_LETTERS_UPPERCASE;
        break;
        
      case R.id.type_letters_lower:
        chars = DEFAULT_LETTERS;
        break;
        
      case R.id.type_letters_upper:
        chars = DEFAULT_LETTERS_UPPERCASE;
        break;
        
      case R.id.type_both_multicase:
        chars = DEFAULT_INTEGERS+DEFAULT_LETTERS+DEFAULT_LETTERS_UPPERCASE;
        break;
        
      case R.id.type_custom:
        EditText custom_text = (EditText) this.findViewById(R.id.text_custom);
        chars = custom_text.getText().toString();
        break;
        
      default:
        chars = DEFAULT_INTEGERS+DEFAULT_LETTERS;
        break;
        
    }
    
    Spinner spnr = (Spinner)this.findViewById(R.id.length_spinner);
    int max = Integer.parseInt(spnr.getSelectedItem().toString());
    
    String password = "";
    if(selected_type==R.id.type_easy) {
      password = this.getEasyPassword(max);
    } else {
      password = this.getRandomPassword(chars, max);
    }
    
    EditText result = (EditText)this.findViewById(R.id.result);
    result.setText(password);
    
  }
  
  
  private String getRandomSubstring(String str) {
    int integer = (int)(Math.random()*str.length());
    return str.substring(integer, integer+1);
  }
  
  
  private String getRandomPassword(String chars, int length) {
    String password = "";
    for(int i=0; i<length; i++) {
      password += this.getRandomSubstring(chars);
    }
    return password;
  }
  
  
  private String getEasyPair() {
    return this.getRandomSubstring(DEFAULT_EASY_A)+
        this.getRandomSubstring(DEFAULT_EASY_B);
  }
  
  
  private String getEasyPassword(int length) {
    int newlength = length;
    if(length%3>0) {
      newlength = ((int)newlength/3)*3;
    }
    
    String pairs = "";
    String integers = "";
    
    while( (pairs.length()+integers.length())<newlength ) {
      pairs += this.getEasyPair();
      integers += this.getRandomSubstring(DEFAULT_INTEGERS);
    }
    
    while( (pairs.length()+integers.length())<length ) {
      integers += this.getRandomSubstring(DEFAULT_INTEGERS);
    }
    
    return pairs+integers;
  }
  
  
  
  // Options Menu
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inf = this.getMenuInflater();
    inf.inflate(R.menu.menu, menu);
    return true;
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem menu) {
    this.onAboutClicked();
    return true;
  }
  
  public void onAboutClicked() {
    AlertDialog.Builder dlgAlert = new AlertDialog.Builder(this); 
    dlgAlert.setMessage("By Christian Blechert (http://fiae.ws)");
    dlgAlert.setTitle("About"); 
    dlgAlert.setPositiveButton("OK", null); 
    dlgAlert.setCancelable(true); 
    dlgAlert.setIcon(R.drawable.appicon);
    
    AlertDialog dlg = dlgAlert.create();
    dlg.setTitle("About");
    dlg.show();
    
  }
  
  
  
}

Java Source Code List

• Back to Password/generator  ↑