【Android M】获取屏幕锁定的相关信息：“无”，“滑动”，“PIN码”，"图案"，"密码"

ENV: Android M 6.0.1

import android.os.UserHandle;
import com.android.internal.widget.LockPatternUtils;
import android.app.admin.DevicePolicyManager;

LockPatternUtils mLockPatternUtils = new LockPatternUtils(mContext);
      int userId = UserHandle.myUserId();
      boolean lockScreenDisabled = mLockPatternUtils.isLockScreenDisabled(userId);
      boolean security = mLockPatternUtils.isSecure(userId);
      boolean isLockPasswordEnabled = mLockPatternUtils.isLockPasswordEnabled(userId);
      boolean isLockPatternEnabled = mLockPatternUtils.isLockPatternEnabled(userId);

final int quality = mLockPatternUtils.getKeyguardStoredPasswordQuality(userId);

Log.d(TAG, "lockScreenDisabled = " + lockScreenDisabled);
      Log.d(TAG, "security = " + security);
      Log.d(TAG, "isLockPasswordEnabled = " + isLockPasswordEnabled);
      Log.d(TAG, "isLockPatternEnabled = " + isLockPatternEnabled);
      Log.d(TAG, "quality = " + quality);

switch (quality) {
         case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC:
         case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX:
            if (mLockPatternUtils.isLockPasswordEnabled(userId)) {
                  Log.d(TAG, "PIN码安全模式");
            }
            break;
         case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC:
         case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC:
         case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX:
            if (mLockPatternUtils.isLockPasswordEnabled(userId)) {
                  Log.d(TAG, "密码安全模式");
            }
            break;

case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING:
         case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED:
            if (mLockPatternUtils.isLockPatternEnabled(userId)) {
                  Log.d(TAG, "图案安全模式");
            }
            break;
      }

打印Log
zhanghu@winth:~$ adb logcat -s LockPatternUtilsHelp
--------- beginning of system
--------- beginning of main

//图案
11-02 14:36:22.721  4896  4896 D LockPatternUtilsHelp: lockScreenDisabled = false
11-02 14:36:22.721  4896  4896 D LockPatternUtilsHelp: security = true
11-02 14:36:22.721  4896  4896 D LockPatternUtilsHelp: isLockPasswordEnabled = false
11-02 14:36:22.721  4896  4896 D LockPatternUtilsHelp: isLockPatternEnabled = true
11-02 14:36:22.722  4896  4896 D LockPatternUtilsHelp: quality = 65536
11-02 14:36:22.722  4896  4896 D LockPatternUtilsHelp: 图案安全模式

//PIN码
11-02 14:37:34.748  4896  4896 D LockPatternUtilsHelp: lockScreenDisabled = false
11-02 14:37:34.748  4896  4896 D LockPatternUtilsHelp: security = true
11-02 14:37:34.748  4896  4896 D LockPatternUtilsHelp: isLockPasswordEnabled = true
11-02 14:37:34.748  4896  4896 D LockPatternUtilsHelp: isLockPatternEnabled = false
11-02 14:37:34.748  4896  4896 D LockPatternUtilsHelp: quality = 131072
11-02 14:37:34.748  4896  4896 D LockPatternUtilsHelp: PIN码安全模式

// 密码
11-02 14:38:10.930  4896  4896 D LockPatternUtilsHelp: lockScreenDisabled = false
11-02 14:38:10.930  4896  4896 D LockPatternUtilsHelp: security = true
11-02 14:38:10.930  4896  4896 D LockPatternUtilsHelp: isLockPasswordEnabled = true
11-02 14:38:10.930  4896  4896 D LockPatternUtilsHelp: isLockPatternEnabled = false
11-02 14:38:10.930  4896  4896 D LockPatternUtilsHelp: quality = 327680
11-02 14:38:10.931  4896  4896 D LockPatternUtilsHelp: 密码安全模式

// 滑动
11-02 14:36:58.968  4896  4896 D LockPatternUtilsHelp: lockScreenDisabled = false
11-02 14:36:58.968  4896  4896 D LockPatternUtilsHelp: security = false
11-02 14:36:58.968  4896  4896 D LockPatternUtilsHelp: isLockPasswordEnabled = false
11-02 14:36:58.968  4896  4896 D LockPatternUtilsHelp: isLockPatternEnabled = false
11-02 14:36:58.968  4896  4896 D LockPatternUtilsHelp: quality = 0

// 无
11-02 14:36:58.968  4896  4896 D LockPatternUtilsHelp: lockScreenDisabled = true
11-02 14:36:58.968  4896  4896 D LockPatternUtilsHelp: security = false
11-02 14:36:58.968  4896  4896 D LockPatternUtilsHelp: isLockPasswordEnabled = false
11-02 14:36:58.968  4896  4896 D LockPatternUtilsHelp: isLockPatternEnabled = false
11-02 14:36:58.968  4896  4896 D LockPatternUtilsHelp: quality = 0

一　如何判断当前锁定方式是否为"无"？
通过LockPatternUtils类的isLockScreenDisabled判断

二　如何判断当前锁定方式是否为"滑动"？
通过LockPatternUtils类的! isSecure方法和! isLockScreenDisabled方法判断

三　如何判断当前锁定方式是否为"安全密码"锁屏？
通过LockPatternUtils类的isSecure方法和getKeyguardStoredPasswordQuality方法判断

PS:LockPatternUtils类为平台内部类，第三方应用层无法获取该类，可考虑通过反射调用亦可考虑其他方式判断

巴特西

【Android M】获取屏幕锁定的相关信息：“无”，“滑动”，“PIN码”，"图案"，"密码"

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