【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