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

*/privatevoidsaveChosenPattern(ListLockPatternView.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<>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

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