Android仿支付宝手势密码解锁功能

Starting

创建手势密码可以查看 CreateGestureActivity.java 文件.

登陆验证手势密码可以看 GestureLoginActivity.java 文件.

Features

使用了 JakeWharton/butterknife butterknife

使用了 ACache 来存储手势密码

/**
* 保存手势密码
*/

private void saveChosenPattern(List<LockPatternView.Cell> cells)
{
byte[] bytes = LockPatternUtil.patternToHash(cells);
aCache.put(Constant.GESTURE_PASSWORD, bytes);
}

Warning: 使用 ACache 类保存密码并不是无限期的. 具体期限可以查看 ACache 类.

使用了 SHA 算法保存手势密码

/**
* Generate an SHA-1 hash for the pattern.
* Not the most secure, but it is at
* least a second level of protection. First level is that the file is in a
* location only readable by the system process.*
* @param pattern
* @return the hash of the pattern in a byte array.
*/
public static byte[] patternToHash(List<LockPatternView.Cell> pattern)
{
 if (pattern == null) {  
  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;
  }
 }
}

可以开启震动模式，当选中一个圈的时候，手机会震动

/** * Set whether the view will use tactile feedback.
*If true, there will be
* tactile feedback as the user enters the pattern.
* @param tactileFeedbackEnabled Whether tactile feedback is enabled
*/

public void setTactileFeedbackEnabled(boolean tactileFeedbackEnabled) {
mEnableHapticFeedback = tactileFeedbackEnabled;
}

可以开启绘制路径隐藏模式

/**
* Set whether the view is in stealth mode. If true, there will be no
* visible feedback as the user enters the pattern.
* @param inStealthMode Whether in stealth mode.
*/public void setInStealthMode(boolean inStealthMode) {
mInStealthMode = inStealthMode;
}

Example