diff --git a/README.md b/README.md
index b8b44fb..fc49701 100644
--- a/README.md
+++ b/README.md
@@ -87,9 +87,9 @@ allprojects {
 And add our dependency to your app `bundle.gradle`.
 
 ```gradle
-implementation 'com.devrapid.jieyi:kotlinknifer:1.5.7'
+implementation 'com.devrapid.jieyi:kotlinknifer:1.5.8'
 
-implementation 'com.devrapid.jieyi:kotlinshaver:0.2.2'
+implementation 'com.devrapid.jieyi:kotlinshaver:0.2.3'
 ```
 
 Then you can use it!!!
@@ -100,14 +100,14 @@ Then you can use it!!!
 <dependency>
   <groupId>com.devrapid.jieyi</groupId>
   <artifactId>kotlinknifer</artifactId>
-  <version>1.5.7</version>
+  <version>1.5.8</version>
   <type>pom</type>
 </dependency>
 
 <dependency>
   <groupId>com.devrapid.jieyi</groupId>
   <artifactId>kotlinshaver</artifactId>
-  <version>0.2.2</version>
+  <version>0.2.3</version>
   <type>pom</type>
 </dependency>
 ```
@@ -116,25 +116,25 @@ Then you can use it!!!
 
 ## kotlinknifer
 
-1. Gson 2.8.2
-2. Glide 4.6.1
+1. Gson 2.8.5
+2. Glide 4.8.0
 
 ## kotlinshaver
 
-1. RxJava 2.1.10
-2. RxKotlin 2.2.0
+1. RxJava 2.2.1
+2. RxKotlin 2.3.0
 
 If you'd not like to use them to your project, you can add the exclude as like below
 
 ```gradle
-implementation('com.devrapid.jieyi:kotlinknifer:1.5.7', {
+implementation('com.devrapid.jieyi:kotlinknifer:1.5.8', {
   exclude group: 'com.google.code.gson', module: 'gson'
   exclude group: 'com.github.bumptech.glide', module: 'glide'
 })
 ```
 
 ```gradle
-implementation('com.devrapid.jieyi:kotlinshaverr:0.2.2', {
+implementation('com.devrapid.jieyi:kotlinshaverr:0.2.3', {
   exclude group: 'io.reactivex.rxjava2', module: 'rxjava'
   exclude group: 'io.reactivex.rxjava2', module: 'rxkotlin'
 })
diff --git a/build.gradle b/build.gradle
index 8bdcf69..bde582c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.2.31'
+    ext.kotlin_version = '1.2.61'
     repositories {
         jcenter()
         google()
@@ -12,7 +12,7 @@ buildscript {
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
 
-        classpath "com.jfrog.bintray.gradle:gradle-bintray-plugin:1.7.3"
+        classpath "com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.0"
         classpath "com.github.dcendents:android-maven-gradle-plugin:1.5"
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
diff --git a/gradle.properties b/gradle.properties
index 3086c68..03a5cf1 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -18,7 +18,7 @@ proj_name=kotlinknifer
 proj_libname=KotlinKnifer
 proj_group=com.devrapid.jieyi
 proj_artifactid=kotlinknifer
-proj_version=1.5.7
+proj_version=1.5.8
 proj_description=For developing an Android conveniently and rapidly.
 proj_websiteurl=https://github.com/pokk/KotlinKnifer
 proj_issuetrackerurl=https://github.com/pokk/KotlinKnifer/issues
@@ -36,4 +36,4 @@ developer_email=pokkbaby@gmail.com
 proj_kotlin_name=kotlinshaver
 proj_kotlin_libname=KotlinShaver
 proj_kotlin_artifactid=kotlinshaver
-proj_kotlin_version=0.2.2
+proj_kotlin_version=0.2.3
diff --git a/kotlinknifer/build.gradle b/kotlinknifer/build.gradle
index ac94396..646b84f 100644
--- a/kotlinknifer/build.gradle
+++ b/kotlinknifer/build.gradle
@@ -26,16 +26,16 @@ kotlin {
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     // 'compile' can also import to the new project with this.
-    compile 'com.google.code.gson:gson:2.8.2'
-    compile 'com.github.bumptech.glide:glide:4.6.1'
+    compile 'com.google.code.gson:gson:2.8.5'
+    compile 'com.github.bumptech.glide:glide:4.8.0'
     // 'implementation' can't import to the new project.
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:0.22.5'
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core-common:0.22.5'
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:0.22.5'
-    implementation 'org.jetbrains.anko:anko-commons:0.10.4'
-    implementation 'com.android.support:appcompat-v7:27.1.0'
-    implementation 'com.android.support:recyclerview-v7:27.1.0'
-    implementation 'com.android.support:palette-v7:27.1.0'
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:0.25.0'
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core-common:0.25.0'
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:0.25.0'
+    implementation 'org.jetbrains.anko:anko-commons:0.10.5'
+    implementation 'com.android.support:appcompat-v7:27.1.1'
+    implementation 'com.android.support:recyclerview-v7:27.1.1'
+    implementation 'com.android.support:palette-v7:27.1.1'
     compile project(':kotlinshaver')
 }
 
diff --git a/kotlinknifer/src/main/java/com/devrapid/kotlinknifer/EditText.kt b/kotlinknifer/src/main/java/com/devrapid/kotlinknifer/EditText.kt
new file mode 100644
index 0000000..d8d1b3c
--- /dev/null
+++ b/kotlinknifer/src/main/java/com/devrapid/kotlinknifer/EditText.kt
@@ -0,0 +1,35 @@
+package com.devrapid.kotlinknifer
+
+import android.graphics.PorterDuff.Mode.SRC_IN
+import android.support.annotation.ColorInt
+import android.support.annotation.DrawableRes
+import android.support.v4.content.ContextCompat
+import android.widget.EditText
+import android.widget.TextView
+import com.devrapid.kotlinshaver.accessible
+
+fun setCursorPointerColor(view: EditText, @ColorInt color: Int, @DrawableRes drawable: Int = -1) {
+    // Get the editor.
+    val editor = TextView::class.java.getDeclaredField("mEditor").accessible().get(view)
+    // Get all drawable's selection points.
+    val drawables = if (-1 == drawable)
+        listOf("mTextSelectHandleRes"  // Selection cursor point.
+               , "mTextSelectHandleLeftRes"  // Selection the highlight left cursor point.
+               , "mTextSelectHandleRightRes")  // Selection the highlight right cursor point.
+            .asSequence()
+            .map { TextView::class.java.getDeclaredField(it).accessible() }  // Get the drawables' field.
+            .map { it.getInt(view) }  // Get the drawable resource id.
+            .map { requireNotNull(ContextCompat.getDrawable(view.context, it)) }  // Get the drawable.
+            .map { it.setColorFilter(color, SRC_IN); it }  // Change the color we set.
+            .toList()
+    else
+        (0..2).map { requireNotNull(ContextCompat.getDrawable(view.context, drawable)) }
+    // Get all handle fields.
+    val fields = listOf("mSelectHandleCenter"
+                        , "mSelectHandleLeft"
+                        , "mSelectHandleRight")
+        .map { editor.javaClass.getDeclaredField(it).accessible() }
+    fields.zip(drawables).forEach { (field, drawable) -> field.set(editor, drawable) }
+
+    view.highlightColor = color
+}
diff --git a/kotlinshaver/build.gradle b/kotlinshaver/build.gradle
index 5347279..908595c 100644
--- a/kotlinshaver/build.gradle
+++ b/kotlinshaver/build.gradle
@@ -3,11 +3,11 @@ apply plugin: 'kotlin'
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:0.22.5'
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core-common:0.22.5'
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:0.25.0'
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core-common:0.25.0'
 
-    compile 'io.reactivex.rxjava2:rxkotlin:2.2.0'
-    compile 'io.reactivex.rxjava2:rxjava:2.1.10'
+    compile 'io.reactivex.rxjava2:rxkotlin:2.3.0'
+    compile 'io.reactivex.rxjava2:rxjava:2.2.1'
 }
 
 sourceCompatibility = "1.8"
@@ -115,4 +115,4 @@ bintray {
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/kotlinshaver/src/main/java/com/devrapid/kotlinshaver/Casting.kt b/kotlinshaver/src/main/java/com/devrapid/kotlinshaver/Casting.kt
new file mode 100644
index 0000000..9df1da3
--- /dev/null
+++ b/kotlinshaver/src/main/java/com/devrapid/kotlinshaver/Casting.kt
@@ -0,0 +1,13 @@
+package com.devrapid.kotlinshaver
+
+inline fun <reified T> castOrNull(from: Any?) = from as? T
+inline fun <reified T> cast(from: Any?): T {
+    if (null == from) throw NullPointerException("Null object can't cast.")
+
+    try {
+        return T::class.java.cast(from)
+    }
+    catch (castExcept: ClassCastException) {
+        throw ClassCastException("Class casting failed.")
+    }
+}
diff --git a/kotlinshaver/src/main/java/com/devrapid/kotlinshaver/Field.kt b/kotlinshaver/src/main/java/com/devrapid/kotlinshaver/Field.kt
new file mode 100644
index 0000000..32ca079
--- /dev/null
+++ b/kotlinshaver/src/main/java/com/devrapid/kotlinshaver/Field.kt
@@ -0,0 +1,7 @@
+@file:Suppress("NOTHING_TO_INLINE")
+
+package com.devrapid.kotlinshaver
+
+import java.lang.reflect.Field
+
+inline fun Field.accessible() = apply { isAccessible = true }
diff --git a/sample/build.gradle b/sample/build.gradle
index 0950290..c731217 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -25,8 +25,8 @@ dependencies {
     androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
-    implementation 'com.android.support:appcompat-v7:27.1.0'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.0-beta6'
+    implementation 'com.android.support:appcompat-v7:27.1.1'
+    implementation 'com.android.support.constraint:constraint-layout:2.0.0-alpha2'
     implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     implementation project(':kotlinknifer')
 //    implementation "com.devrapid.jieyi:kotlinknifer:1.4.1"