diff --git a/app/build.gradle b/app/build.gradle
index bc596b4..bab10c5 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,7 +7,7 @@ apply plugin: 'kotlin-android-extensions'
 android {
     compileSdkVersion 26
     defaultConfig {
-        applicationId "com.tf.oof.operationedittextlayout"
+        applicationId "com.ooftf.operationedittextlayout"
         minSdkVersion 14
         targetSdkVersion 26
         versionCode 1
diff --git a/app/src/androidTest/java/com/tf/oof/operationedittextlayout/ExampleInstrumentedTest.kt b/app/src/androidTest/java/com/ooftf/operationedittextlayout/ExampleInstrumentedTest.kt
similarity index 93%
rename from app/src/androidTest/java/com/tf/oof/operationedittextlayout/ExampleInstrumentedTest.kt
rename to app/src/androidTest/java/com/ooftf/operationedittextlayout/ExampleInstrumentedTest.kt
index 7a825f8..de1aad2 100644
--- a/app/src/androidTest/java/com/tf/oof/operationedittextlayout/ExampleInstrumentedTest.kt
+++ b/app/src/androidTest/java/com/ooftf/operationedittextlayout/ExampleInstrumentedTest.kt
@@ -1,4 +1,4 @@
-package com.tf.oof.operationedittextlayout
+package com.ooftf.operationedittextlayout
 
 import android.support.test.InstrumentationRegistry
 import android.support.test.runner.AndroidJUnit4
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 1b7310a..5687d7c 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.tf.oof.operationedittextlayout">
+    package="com.ooftf.operationedittextlayout">
 
     <application
         android:allowBackup="true"
@@ -9,7 +9,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
+        <activity android:name="com.ooftf.operationedittextlayout.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
diff --git a/app/src/main/java/com/tf/oof/operationedittextlayout/MainActivity.kt b/app/src/main/java/com/ooftf/operationedittextlayout/MainActivity.kt
similarity index 86%
rename from app/src/main/java/com/tf/oof/operationedittextlayout/MainActivity.kt
rename to app/src/main/java/com/ooftf/operationedittextlayout/MainActivity.kt
index 8ca42a3..558a66c 100644
--- a/app/src/main/java/com/tf/oof/operationedittextlayout/MainActivity.kt
+++ b/app/src/main/java/com/ooftf/operationedittextlayout/MainActivity.kt
@@ -1,4 +1,4 @@
-package com.tf.oof.operationedittextlayout
+package com.ooftf.operationedittextlayout
 
 import android.support.v7.app.AppCompatActivity
 import android.os.Bundle
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 447e790..5002a0e 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -8,7 +8,7 @@
     android:orientation="vertical"
     tools:context=".MainActivity">
 
-    <com.tf.oof.operation.OperationEditTextLayout
+    <com.ooftf.operation.OperationEditTextLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         app:delOperationEnabled="true"
@@ -19,9 +19,9 @@
             android:paddingLeft="16dp"
             android:layout_width="match_parent"
             android:layout_height="48dp" />
-    </com.tf.oof.operation.OperationEditTextLayout>
+    </com.ooftf.operation.OperationEditTextLayout>
 
-    <com.tf.oof.operation.OperationEditTextLayout
+    <com.ooftf.operation.OperationEditTextLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         app:delOperationEnabled="true"
@@ -31,5 +31,5 @@
             android:paddingLeft="16dp"
             android:layout_width="match_parent"
             android:layout_height="48dp" />
-    </com.tf.oof.operation.OperationEditTextLayout>
+    </com.ooftf.operation.OperationEditTextLayout>
 </LinearLayout>
diff --git a/app/src/test/java/com/tf/oof/operationedittextlayout/ExampleUnitTest.kt b/app/src/test/java/com/ooftf/operationedittextlayout/ExampleUnitTest.kt
similarity index 88%
rename from app/src/test/java/com/tf/oof/operationedittextlayout/ExampleUnitTest.kt
rename to app/src/test/java/com/ooftf/operationedittextlayout/ExampleUnitTest.kt
index fa5e0e8..34d617e 100644
--- a/app/src/test/java/com/tf/oof/operationedittextlayout/ExampleUnitTest.kt
+++ b/app/src/test/java/com/ooftf/operationedittextlayout/ExampleUnitTest.kt
@@ -1,4 +1,4 @@
-package com.tf.oof.operationedittextlayout
+package com.ooftf.operationedittextlayout
 
 import org.junit.Test
 
diff --git a/lib/src/main/AndroidManifest.xml b/lib/src/main/AndroidManifest.xml
index f60b916..97cf289 100644
--- a/lib/src/main/AndroidManifest.xml
+++ b/lib/src/main/AndroidManifest.xml
@@ -1,2 +1,2 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.tf.oof.operation" />
+    package="com.ooftf.operation" />
diff --git a/lib/src/main/java/com/tf/oof/operation/OperationEditTextLayout.kt b/lib/src/main/java/com/ooftf/operation/OperationEditTextLayout.kt
similarity index 99%
rename from lib/src/main/java/com/tf/oof/operation/OperationEditTextLayout.kt
rename to lib/src/main/java/com/ooftf/operation/OperationEditTextLayout.kt
index 96e7f3c..9f02972 100644
--- a/lib/src/main/java/com/tf/oof/operation/OperationEditTextLayout.kt
+++ b/lib/src/main/java/com/ooftf/operation/OperationEditTextLayout.kt
@@ -1,4 +1,4 @@
-package com.tf.oof.operation
+package com.ooftf.operation
 
 import android.content.Context
 import android.text.Editable