LouisShark

import android.os.Looper
import android.util.Log

fun looper() {
  Gloal.handler.post {
    while (true) {
      try {
        Looper.loop()
      } catch (e: Throwable) {
        val stack = Log.getStackTraceString(e)

LouisShark

static void getSalt() {
  try {
    Class<?> clazz = Class.forName("com.android.internal.widget.LockPatternUtils");
    Object lockUtils = clazz.getConstructor(Context.class).newInstance(this);
    Class<?> lockUtilsClazz = lockUtils.getClass();
    Method getSaltM = lockUtilsClazz.getDeclaredMethod("getSalt", int.class);
    getSaltM.setAccessible(true);
    Object saltObj = getSaltM.invoke(lockUtils, 0);
    Log.i("LouisShark", "Salt: " + saltObj);
  } catch (Exception e) {

LouisShark

package com.yibo.housekeeping.test

import android.annotation.SuppressLint
import android.content.Context
import android.support.annotation.NonNull
import android.support.annotation.Nullable

/**
 * @author LouisShark
 * @date 2018/8/4.