Android Imitation payment treasure gesture password unlock function _android

Starting

Create a gesture password to view the Creategestureactivity.java file.

Login verification gesture Password can look Gestureloginactivity.java file.

Features

Using the Jakewharton/butterknife Butterknife

Use Acache to store gesture passwords

/** 
 * Save gesture Password 
 *
 
/private void Savechosenpattern (list<lockpatternview.cell> cells) 
{ 
 byte[ ] bytes = Lockpatternutil.patterntohash (cells);
 Acache.put (Constant.gesture_password, bytes);
}

Warning: saving passwords using the Acache class is not indefinite. The specific term can be viewed Acache class.

Using the SHA algorithm to save gesture passwords

/** 
 * Generate a SHA-1 hash for the pattern.
 * Not the most secure, but it are at 
 * least a second level of protection. The ' file is ' in a 
 * location only readable by the system process.*
 * @param pattern 
 * @retu RN The hash of the pattern in a byte array. 
 */public
static byte[] Patterntohash (list<lockpatternview.cell> pattern)
 { 
  if (pattern = = null) { C11/>return null;
  } else { 
   int size = Pattern.size ();  
   byte[] res = new Byte[size]; 
   for (int i = 0; i < size; i++) {  
    Lockpatternview.cell Cell = Pattern.get (i);
    Res[i] = (byte) cell.getindex ();
   }  
   MessageDigest MD = NULL;
   try {
    MD = messagedigest.getinstance ("SHA-1");   
    Return Md.digest (res);
    catch (NoSuchAlgorithmException e) {
    e.printstacktrace ();   
    return res;
   }
  }
 

can open the vibration mode, the election of a circle when the hands of the opportunity to vibrate

/** * Set Whether the view would use tactile feedback. 
 *if true, there would be 
 * Tactile feedback as the user enters the pattern. 
 * @param tactilefeedbackenabled Whether Tactile feedback is enabled
 
/public void settactilefeedbackenabled ( Boolean tactilefeedbackenabled) {
 menablehapticfeedback = tactilefeedbackenabled;
}

You can turn on drawing path hiding mode

/** 
 * Set Whether the view is in stealth mode. If true, there'll is no 
 * visible feedback as the user enters the pattern. 
 * @param instealthmode Whether in stealth mode. 
 */public void Setinstealthmode (Boolean instealthmode) {
 minstealthmode = Instealthmode;
}

Example

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