diff --git a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/bean/VariousClass.kt b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/bean/VariousClass.kt
index a8bbc4c4..d09afab1 100644
--- a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/bean/VariousClass.kt
+++ b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/bean/VariousClass.kt
@@ -27,12 +27,35 @@
  */
 package com.highcapable.yukihookapi.hook.bean
 
+import com.highcapable.yukihookapi.hook.factory.classOf
+
 /**
  * 这是一个不确定性 [Class] 类名装载器
  * @param name 可指定多个类名 - 将会自动匹配存在的第一个类名
  */
 class VariousClass(vararg var name: String) {
 
+    /**
+     * 获取匹配的实体类
+     *
+     * - 使用当前 [loader] 装载目标 [Class]
+     * @param loader 当前 [ClassLoader] - 若留空使用默认 [ClassLoader]
+     * @return [Class]
+     * @throws IllegalStateException 如果任何 [Class] 都没有匹配到
+     */
+    fun get(loader: ClassLoader? = null): Class<*> {
+        var finalClass: Class<*>? = null
+        if (name.isNotEmpty()) run {
+            name.forEach {
+                runCatching {
+                    finalClass = classOf(it, loader)
+                    return@run
+                }
+            }
+        }
+        return finalClass ?: error("VariousClass match failed of those $this")
+    }
+
     override fun toString(): String {
         var result = ""
         return if (name.isNotEmpty()) {
diff --git a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/ConstructorFinder.kt b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/ConstructorFinder.kt
index a502a316..92d1d1b9 100644
--- a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/ConstructorFinder.kt
+++ b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/ConstructorFinder.kt
@@ -30,10 +30,12 @@
 package com.highcapable.yukihookapi.hook.core.finder
 
 import com.highcapable.yukihookapi.annotation.YukiPrivateApi
+import com.highcapable.yukihookapi.hook.bean.VariousClass
 import com.highcapable.yukihookapi.hook.core.YukiHookCreater
 import com.highcapable.yukihookapi.hook.core.finder.base.BaseFinder
 import com.highcapable.yukihookapi.hook.core.finder.type.ModifierRules
 import com.highcapable.yukihookapi.hook.log.yLoggerW
+import com.highcapable.yukihookapi.hook.type.defined.UndefinedType
 import com.highcapable.yukihookapi.hook.utils.ReflectionTool
 import com.highcapable.yukihookapi.hook.utils.runBlocking
 import java.lang.reflect.Constructor
@@ -93,12 +95,12 @@ class ConstructorFinder(
      * - ❗有参 [Constructor] 必须使用此方法设定参数或使用 [paramCount] 指定个数
      *
      * - ❗存在多个 [BaseFinder.IndexTypeCondition] 时除了 [order] 只会生效最后一个
-     * @param paramType 参数类型数组
+     * @param paramType 参数类型数组 - ❗只能是 [Class]、[String]、[VariousClass]
      * @return [BaseFinder.IndexTypeCondition]
      */
-    fun param(vararg paramType: Class<*>): IndexTypeCondition {
+    fun param(vararg paramType: Any): IndexTypeCondition {
         if (paramType.isEmpty()) error("paramTypes is empty, please delete param() method")
-        paramTypes = paramType
+        paramTypes = ArrayList<Class<*>>().apply { paramType.forEach { add(it.compat() ?: UndefinedType) } }.toTypedArray()
         return IndexTypeCondition(IndexConfigType.MATCH)
     }
 
diff --git a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/FieldFinder.kt b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/FieldFinder.kt
index 155d686b..a05c0845 100644
--- a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/FieldFinder.kt
+++ b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/FieldFinder.kt
@@ -31,6 +31,7 @@ package com.highcapable.yukihookapi.hook.core.finder
 
 import android.os.SystemClock
 import com.highcapable.yukihookapi.annotation.YukiPrivateApi
+import com.highcapable.yukihookapi.hook.bean.VariousClass
 import com.highcapable.yukihookapi.hook.core.YukiHookCreater
 import com.highcapable.yukihookapi.hook.core.finder.base.BaseFinder
 import com.highcapable.yukihookapi.hook.core.finder.type.ModifierRules
@@ -63,9 +64,25 @@ class FieldFinder(
     /**
      * [Field] 类型
      *
+     * - ❗只能是 [Class]、[String]、[VariousClass]
+     *
      * - 可不填写类型 - 默认模糊查找并取第一个匹配的 [Field]
      */
-    var type: Class<*>? = null
+    var type: Any? = null
+
+    /**
+     * [Field] 筛选条件
+     *
+     * 可不设置筛选条件 - 默认模糊查找并取第一个匹配的 [Field]
+     *
+     * - ❗存在多个 [BaseFinder.IndexTypeCondition] 时除了 [order] 只会生效最后一个
+     * @param initiate 方法体
+     * @return [BaseFinder.IndexTypeCondition]
+     */
+    fun modifiers(initiate: ModifierRules.() -> Unit): IndexTypeCondition {
+        modifiers = ModifierRules().apply(initiate)
+        return IndexTypeCondition(IndexConfigType.MATCH)
+    }
 
     /**
      * 顺序筛选字节码的下标
@@ -93,28 +110,14 @@ class FieldFinder(
      * - 可不填写类型 - 默认模糊查找并取第一个匹配的 [Field]
      *
      * - ❗存在多个 [BaseFinder.IndexTypeCondition] 时除了 [order] 只会生效最后一个
-     * @param value 类型
+     * @param value 类型 - ❗只能是 [Class]、[String]、[VariousClass]
      * @return [BaseFinder.IndexTypeCondition]
      */
-    fun type(value: Class<*>): IndexTypeCondition {
+    fun type(value: Any): IndexTypeCondition {
         type = value
         return IndexTypeCondition(IndexConfigType.MATCH)
     }
 
-    /**
-     * [Field] 筛选条件
-     *
-     * 可不设置筛选条件 - 默认模糊查找并取第一个匹配的 [Field]
-     *
-     * - ❗存在多个 [BaseFinder.IndexTypeCondition] 时除了 [order] 只会生效最后一个
-     * @param initiate 方法体
-     * @return [BaseFinder.IndexTypeCondition]
-     */
-    fun modifiers(initiate: ModifierRules.() -> Unit): IndexTypeCondition {
-        modifiers = ModifierRules().apply(initiate)
-        return IndexTypeCondition(IndexConfigType.MATCH)
-    }
-
     /**
      * 得到变量处理结果
      *
@@ -127,7 +130,7 @@ class FieldFinder(
     override fun build(isBind: Boolean) = try {
         if (classSet != null) {
             runBlocking {
-                memberInstance = ReflectionTool.findField(classSet, orderIndex, matchIndex, name, modifiers, type)
+                memberInstance = ReflectionTool.findField(classSet, orderIndex, matchIndex, name, modifiers, type.compat())
             }.result { onHookLogMsg(msg = "Find Field [${memberInstance}] takes ${it}ms [${hookTag}]") }
             Result()
         } else Result(isNoSuch = true, Throwable("classSet is null"))
@@ -135,7 +138,7 @@ class FieldFinder(
         Thread {
             /** 延迟使得方法取到返回值 */
             SystemClock.sleep(1)
-            onFailureMsg(msg = "NoSuchField happend in [$classSet] [${hookTag}]", throwable = e)
+            onFailureMsg(throwable = e)
         }.start()
         Result(isNoSuch = true, e)
     }
diff --git a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/MethodFinder.kt b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/MethodFinder.kt
index 2f6ea11e..0f907d32 100644
--- a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/MethodFinder.kt
+++ b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/MethodFinder.kt
@@ -30,10 +30,12 @@
 package com.highcapable.yukihookapi.hook.core.finder
 
 import com.highcapable.yukihookapi.annotation.YukiPrivateApi
+import com.highcapable.yukihookapi.hook.bean.VariousClass
 import com.highcapable.yukihookapi.hook.core.YukiHookCreater
 import com.highcapable.yukihookapi.hook.core.finder.base.BaseFinder
 import com.highcapable.yukihookapi.hook.core.finder.type.ModifierRules
 import com.highcapable.yukihookapi.hook.log.yLoggerW
+import com.highcapable.yukihookapi.hook.type.defined.UndefinedType
 import com.highcapable.yukihookapi.hook.utils.ReflectionTool
 import com.highcapable.yukihookapi.hook.utils.runBlocking
 import java.lang.reflect.Method
@@ -81,9 +83,11 @@ class MethodFinder(
     /**
      * [Method] 返回值
      *
-     * 可不填写返回值 - 默认模糊查找并取第一个匹配的 [Method]
+     * - ❗只能是 [Class]、[String]、[VariousClass]
+     *
+     * - 可不填写返回值 - 默认模糊查找并取第一个匹配的 [Method]
      */
-    var returnType: Class<*>? = null
+    var returnType: Any? = null
 
     /**
      * [Method] 筛选条件
@@ -109,12 +113,12 @@ class MethodFinder(
      * - ❗有参 [Method] 必须使用此方法设定参数或使用 [paramCount] 指定个数
      *
      * - ❗存在多个 [BaseFinder.IndexTypeCondition] 时除了 [order] 只会生效最后一个
-     * @param paramType 参数类型数组
+     * @param paramType 参数类型数组 - ❗只能是 [Class]、[String]、[VariousClass]
      * @return [BaseFinder.IndexTypeCondition]
      */
-    fun param(vararg paramType: Class<*>): IndexTypeCondition {
+    fun param(vararg paramType: Any): IndexTypeCondition {
         if (paramType.isEmpty()) error("paramTypes is empty, please delete param() method")
-        paramTypes = paramType
+        paramTypes = ArrayList<Class<*>>().apply { paramType.forEach { add(it.compat() ?: UndefinedType) } }.toTypedArray()
         return IndexTypeCondition(IndexConfigType.MATCH)
     }
 
@@ -163,7 +167,7 @@ class MethodFinder(
      * @param value 个数
      * @return [BaseFinder.IndexTypeCondition]
      */
-    fun returnType(value: Class<*>): IndexTypeCondition {
+    fun returnType(value: Any): IndexTypeCondition {
         returnType = value
         return IndexTypeCondition(IndexConfigType.MATCH)
     }
@@ -173,7 +177,8 @@ class MethodFinder(
      * @return [Method]
      * @throws NoSuchMethodError 如果找不到方法
      */
-    private val result get() = ReflectionTool.findMethod(classSet, orderIndex, matchIndex, name, modifiers, returnType, paramCount, paramTypes)
+    private val result
+        get() = ReflectionTool.findMethod(classSet, orderIndex, matchIndex, name, modifiers, returnType.compat(), paramCount, paramTypes)
 
     /**
      * 设置实例
diff --git a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/base/BaseFinder.kt b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/base/BaseFinder.kt
index f86d685c..3ae2fe6d 100644
--- a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/base/BaseFinder.kt
+++ b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/core/finder/base/BaseFinder.kt
@@ -30,9 +30,12 @@ package com.highcapable.yukihookapi.hook.core.finder.base
 import android.os.SystemClock
 import com.highcapable.yukihookapi.YukiHookAPI
 import com.highcapable.yukihookapi.annotation.YukiPrivateApi
+import com.highcapable.yukihookapi.hook.bean.VariousClass
 import com.highcapable.yukihookapi.hook.core.YukiHookCreater
+import com.highcapable.yukihookapi.hook.factory.classOf
 import com.highcapable.yukihookapi.hook.log.yLoggerE
 import com.highcapable.yukihookapi.hook.log.yLoggerI
+import com.highcapable.yukihookapi.hook.type.defined.UndefinedType
 import java.lang.reflect.Member
 import kotlin.math.abs
 
@@ -133,6 +136,18 @@ abstract class BaseFinder(
      */
     internal val isNotIgnoredNoSuchMemberFailure get() = hookInstance?.isNotIgnoredNoSuchMemberFailure ?: true
 
+    /**
+     * 将目标类型转换为可识别的兼容类型
+     * @return [Class] or null
+     */
+    internal fun Any?.compat() = when (this) {
+        null -> null
+        is Class<*> -> this
+        is String -> runCatching { classOf(name = this, classSet!!.classLoader) }.getOrNull() ?: UndefinedType
+        is VariousClass -> runCatching { get(classSet!!.classLoader) }.getOrNull() ?: UndefinedType
+        else -> error("$tag match type \"$javaClass\" not allowed")
+    } as Class<*>?
+
     /**
      * 发生错误时输出日志
      * @param msg 消息日志
diff --git a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/param/PackageParam.kt b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/param/PackageParam.kt
index 59c7e171..4aabde7d 100644
--- a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/param/PackageParam.kt
+++ b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/param/PackageParam.kt
@@ -176,19 +176,7 @@ open class PackageParam(private var wrapper: PackageParamWrapper? = null) {
      * @return [Class]
      * @throws IllegalStateException 如果任何 [Class] 都没有匹配到
      */
-    val VariousClass.clazz
-        get() :Class<*> {
-            var finalClass: Class<*>? = null
-            if (name.isNotEmpty()) run {
-                name.forEach {
-                    runCatching {
-                        finalClass = it.clazz
-                        return@run
-                    }
-                }
-            }
-            return finalClass ?: error("VariousClass match failed of those $this")
-        }
+    val VariousClass.clazz get() = get(appClassLoader)
 
     /**
      * 通过字符串查找类是否存在
@@ -214,9 +202,9 @@ open class PackageParam(private var wrapper: PackageParamWrapper? = null) {
      *
      * 使用此方法查询将会取 [name] 其中命中存在的第一个 [Class] 作为结果
      * @param name 可填入多个类名 - 自动匹配
-     * @return [HookClass]
+     * @return [VariousClass]
      */
-    fun findClass(vararg name: String) = VariousClass(*name).hookClass
+    fun findClass(vararg name: String) = VariousClass(*name)
 
     /**
      * Hook 方法、构造类
@@ -245,7 +233,7 @@ open class PackageParam(private var wrapper: PackageParamWrapper? = null) {
      * @return [YukiHookCreater.Result]
      */
     fun VariousClass.hook(isUseAppClassLoader: Boolean = true, initiate: YukiHookCreater.() -> Unit) =
-        hookClass.hook(isUseAppClassLoader, initiate)
+        get(if (isUseAppClassLoader) appClassLoader else null).hookClass.hook(isUseAppClassLoader, initiate)
 
     /**
      * Hook 方法、构造类
diff --git a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/type/defined/DefinedTypeFactory.kt b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/type/defined/DefinedTypeFactory.kt
new file mode 100644
index 00000000..88b08aa2
--- /dev/null
+++ b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/type/defined/DefinedTypeFactory.kt
@@ -0,0 +1,37 @@
+/*
+ * YukiHookAPI - An efficient Kotlin version of the Xposed Hook API.
+ * Copyright (C) 2019-2022 HighCapable
+ * https://github.com/fankes/YukiHookAPI
+ *
+ * MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * This file is Created by fankes on 2022/4/3.
+ */
+package com.highcapable.yukihookapi.hook.type.defined
+
+/** 未定义类型实例 */
+internal class UndefinedClass
+
+/**
+ * 未定义类型
+ * @return [UndefinedClass]
+ */
+internal val UndefinedType get() = UndefinedClass::class.java
\ No newline at end of file
diff --git a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/utils/ReflectionTool.kt b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/utils/ReflectionTool.kt
index 429bf3f4..e6b7c572 100644
--- a/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/utils/ReflectionTool.kt
+++ b/yukihookapi/src/api/kotlin/com/highcapable/yukihookapi/hook/utils/ReflectionTool.kt
@@ -29,6 +29,7 @@ package com.highcapable.yukihookapi.hook.utils
 
 import com.highcapable.yukihookapi.hook.core.finder.type.ModifierRules
 import com.highcapable.yukihookapi.hook.store.MemberCacheStore
+import com.highcapable.yukihookapi.hook.type.defined.UndefinedType
 import java.lang.reflect.Constructor
 import java.lang.reflect.Field
 import java.lang.reflect.Member
@@ -52,7 +53,7 @@ internal object ReflectionTool {
      * @param modifiers 变量描述
      * @param type 变量类型
      * @return [Field]
-     * @throws IllegalStateException 如果 [classSet] 为 null 或未设置任何条件
+     * @throws IllegalStateException 如果 [classSet] 为 null 或未设置任何条件或 [type] 目标类不存在
      * @throws NoSuchFieldError 如果找不到变量
      */
     internal fun findField(
@@ -63,6 +64,7 @@ internal object ReflectionTool {
         modifiers: ModifierRules?,
         type: Class<*>?
     ): Field {
+        if (type == UndefinedType) error("Field match type class is not found")
         if (orderIndex == null && matchIndex == null && name.isBlank() && modifiers == null && type == null)
             error("You must set a condition when finding a Field")
         val hashCode = ("[$orderIndex][$matchIndex][$name][$type][$modifiers][$classSet]").hashCode()
@@ -155,7 +157,7 @@ internal object ReflectionTool {
      * @param paramCount 方法参数个数
      * @param paramTypes 方法参数类型
      * @return [Method]
-     * @throws IllegalStateException 如果 [classSet] 为 null 或未设置任何条件
+     * @throws IllegalStateException 如果 [classSet] 为 null 或未设置任何条件或 [paramTypes] 以及 [returnType] 目标类不存在
      * @throws NoSuchMethodError 如果找不到方法
      */
     internal fun findMethod(
@@ -168,6 +170,9 @@ internal object ReflectionTool {
         paramCount: Int,
         paramTypes: Array<out Class<*>>?
     ): Method {
+        if (returnType == UndefinedType) error("Method match returnType class is not found")
+        paramTypes?.takeIf { it.isNotEmpty() }
+            ?.forEachIndexed { p, it -> if (it == UndefinedType) error("Method match paramType[$p] class is not found") }
         if (orderIndex == null && matchIndex == null && name.isBlank() && modifiers == null && paramCount < 0 && paramTypes == null && returnType == null)
             error("You must set a condition when finding a Method")
         val hashCode =
@@ -288,7 +293,7 @@ internal object ReflectionTool {
      * @param paramCount 构造方法参数个数
      * @param paramTypes 构造方法参数类型
      * @return [Constructor]
-     * @throws IllegalStateException 如果 [classSet] 为 null 或未设置任何条件
+     * @throws IllegalStateException 如果 [classSet] 为 null 或未设置任何条件或 [paramTypes] 目标类不存在
      * @throws NoSuchMethodError 如果找不到构造方法
      */
     internal fun findConstructor(
@@ -299,6 +304,8 @@ internal object ReflectionTool {
         paramCount: Int,
         paramTypes: Array<out Class<*>>?
     ): Constructor<*> {
+        paramTypes?.takeIf { it.isNotEmpty() }
+            ?.forEachIndexed { p, it -> if (it == UndefinedType) error("Constructor match paramType[$p] class is not found") }
         if (orderIndex == null && matchIndex == null && paramCount < 0 && paramTypes == null && modifiers == null)
             error("You must set a condition when finding a Constructor")
         val hashCode = ("[$orderIndex][$matchIndex][$paramCount][${paramTypes.typeOfString()}][$modifiers][$classSet]").hashCode()