diff --git a/app/build.gradle b/app/build.gradle
index 27ef2da..d676582 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -29,7 +29,9 @@ dependencies {
     implementation 'androidx.core:core-ktx:1.0.2'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'androidx.test:runner:1.1.1'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
+    androidTestImplementation 'androidx.test:runner:1.2.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+    implementation 'com.google.android.material:material:1.1.0-alpha07'
+    implementation 'com.github.CymChad:BaseRecyclerViewAdapterHelper:2.9.45-androidx'
     implementation project(path: ':library')
 }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 98678d8..3becad3 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          xmlns:tools="http://schemas.android.com/tools"
           package="luyao.ktx">
 
     <application
@@ -8,7 +9,8 @@
             android:label="@string/app_name"
             android:roundIcon="@mipmap/ic_launcher_round"
             android:supportsRtl="true"
-            android:theme="@style/AppTheme">
+            android:theme="@style/AppTheme"
+            tools:ignore="GoogleAppIndexingWarning">
         <activity android:name="luyao.util.ktx.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
@@ -17,6 +19,7 @@
             </intent-filter>
         </activity>
         <activity android:name="luyao.util.ktx.mvvm.MvvmActivity"/>
+        <activity android:name="luyao.util.ktx.ui.ExtActivity"/>
     </application>
 
 </manifest>
\ No newline at end of file
diff --git a/app/src/main/java/luyao/util/ktx/MainActivity.kt b/app/src/main/java/luyao/util/ktx/MainActivity.kt
index 8d5d6be..c21ba7f 100644
--- a/app/src/main/java/luyao/util/ktx/MainActivity.kt
+++ b/app/src/main/java/luyao/util/ktx/MainActivity.kt
@@ -2,8 +2,9 @@ package luyao.util.ktx
 
 import kotlinx.android.synthetic.main.activity_main.*
 import luyao.ktx.R
-import luyao.ktx.base.BaseActivity
+import luyao.util.ktx.base.BaseActivity
 import luyao.util.ktx.mvvm.MvvmActivity
+import luyao.util.ktx.ui.ExtActivity
 
 class MainActivity : BaseActivity() {
 
@@ -13,5 +14,6 @@ class MainActivity : BaseActivity() {
 
     override fun initData() {
         btMvvm.setOnClickListener { startActivity(MvvmActivity::class.java) }
+        btExt.setOnClickListener { startActivity(ExtActivity::class.java) }
     }
 }
diff --git a/app/src/main/java/luyao/util/ktx/adapter/CommonAdapter.kt b/app/src/main/java/luyao/util/ktx/adapter/CommonAdapter.kt
new file mode 100644
index 0000000..ed815a8
--- /dev/null
+++ b/app/src/main/java/luyao/util/ktx/adapter/CommonAdapter.kt
@@ -0,0 +1,16 @@
+package luyao.util.ktx.adapter
+
+import com.chad.library.adapter.base.BaseQuickAdapter
+import com.chad.library.adapter.base.BaseViewHolder
+import luyao.ktx.R
+
+/**
+ * Created by luyao
+ * on 2019/6/10 10:57
+ */
+class CommonAdapter(layoutResId: Int = R.layout.item_common) : BaseQuickAdapter<String, BaseViewHolder>(layoutResId) {
+
+    override fun convert(helper: BaseViewHolder, item: String) {
+        helper.setText(R.id.itemTv, item)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/luyao/util/ktx/mvvm/MvvmActivity.kt b/app/src/main/java/luyao/util/ktx/mvvm/MvvmActivity.kt
index a0b5f1b..f1c673a 100644
--- a/app/src/main/java/luyao/util/ktx/mvvm/MvvmActivity.kt
+++ b/app/src/main/java/luyao/util/ktx/mvvm/MvvmActivity.kt
@@ -4,8 +4,8 @@ import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.Observer
 import kotlinx.android.synthetic.main.activity_mvvm_demo.*
 import luyao.ktx.R
-import luyao.ktx.base.BaseVMActivity
-import luyao.ktx.ext.toast
+import luyao.util.ktx.base.BaseVMActivity
+import luyao.util.ktx.ext.toast
 
 /**
  * Created by luyao
diff --git a/app/src/main/java/luyao/util/ktx/mvvm/MvvmModel.kt b/app/src/main/java/luyao/util/ktx/mvvm/MvvmModel.kt
index 6145d1a..57972d0 100644
--- a/app/src/main/java/luyao/util/ktx/mvvm/MvvmModel.kt
+++ b/app/src/main/java/luyao/util/ktx/mvvm/MvvmModel.kt
@@ -1,12 +1,10 @@
 package luyao.util.ktx.mvvm
 
-import androidx.lifecycle.Lifecycle
-import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.MutableLiveData
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.async
 import kotlinx.coroutines.delay
-import luyao.ktx.base.BaseViewModel
+import luyao.util.ktx.base.BaseViewModel
 
 /**
  * Created by luyao
diff --git a/app/src/main/java/luyao/util/ktx/ui/ExtActivity.kt b/app/src/main/java/luyao/util/ktx/ui/ExtActivity.kt
new file mode 100644
index 0000000..cf4115f
--- /dev/null
+++ b/app/src/main/java/luyao/util/ktx/ui/ExtActivity.kt
@@ -0,0 +1,53 @@
+package luyao.util.ktx.ui
+
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentPagerAdapter
+import kotlinx.android.synthetic.main.activity_ext.*
+import luyao.ktx.R
+import luyao.util.ktx.base.BaseActivity
+import luyao.util.ktx.ui.fragment.ContextExtFragment
+
+/**
+ * Created by luyao
+ * on 2019/6/10 10:00
+ */
+class ExtActivity : BaseActivity() {
+
+    private val titleList = arrayOf("Context", "String")
+    private val fragmentList = arrayListOf<Fragment>()
+
+    private val contextExtFragment = ContextExtFragment()
+    private val stringExtFragment = ContextExtFragment()
+
+
+    override fun getLayoutResId() = R.layout.activity_ext
+
+    init {
+        fragmentList.add(contextExtFragment)
+        fragmentList.add(stringExtFragment)
+    }
+
+    override fun initView() {
+        mToolbar.run {
+            title = "扩展函数"
+            setNavigationIcon(R.drawable.arrow_back)
+        }
+
+        initViewPager()
+    }
+
+    override fun initData() {
+    }
+
+    private fun initViewPager() {
+        extViewPager.adapter =
+            object : FragmentPagerAdapter(supportFragmentManager, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT) {
+                override fun getItem(position: Int) = fragmentList[position]
+
+                override fun getCount() = fragmentList.size
+
+                override fun getPageTitle(position: Int) = titleList[position]
+            }
+        extTabLayout.setupWithViewPager(extViewPager)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/luyao/util/ktx/ui/fragment/CommonFragment.kt b/app/src/main/java/luyao/util/ktx/ui/fragment/CommonFragment.kt
new file mode 100644
index 0000000..e68fa53
--- /dev/null
+++ b/app/src/main/java/luyao/util/ktx/ui/fragment/CommonFragment.kt
@@ -0,0 +1,37 @@
+package luyao.util.ktx.ui.fragment
+
+import androidx.recyclerview.widget.LinearLayoutManager
+import kotlinx.android.synthetic.main.fragment_context_ext.*
+import luyao.ktx.R
+import luyao.util.ktx.adapter.CommonAdapter
+import luyao.util.ktx.base.BaseFragment
+
+/**
+ * Created by luyao
+ * on 2019/6/10 13:18
+ */
+abstract class CommonFragment : BaseFragment() {
+
+    open val dataList = ArrayList<String>()
+    private val commonAdapter by lazy { CommonAdapter() }
+
+    override fun getLayoutResId() = R.layout.fragment_context_ext
+
+    override fun initView() {
+        commonAdapter.setOnItemClickListener { _, _, position ->
+            handleClick(position)
+        }
+        recycleView.run {
+            layoutManager = LinearLayoutManager(context)
+            adapter = commonAdapter
+        }
+    }
+
+    override fun initData() {
+        fillList()
+        commonAdapter.setNewData(dataList)
+    }
+
+    abstract fun fillList()
+    abstract fun handleClick(position: Int)
+}
\ No newline at end of file
diff --git a/app/src/main/java/luyao/util/ktx/ui/fragment/ContextExtFragment.kt b/app/src/main/java/luyao/util/ktx/ui/fragment/ContextExtFragment.kt
new file mode 100644
index 0000000..7183dc3
--- /dev/null
+++ b/app/src/main/java/luyao/util/ktx/ui/fragment/ContextExtFragment.kt
@@ -0,0 +1,25 @@
+package luyao.util.ktx.ui.fragment
+
+import luyao.util.ktx.ext.getVersionName
+import luyao.util.ktx.ext.toast
+
+/**
+ * Created by luyao
+ * on 2019/6/10 10:46
+ */
+class ContextExtFragment : CommonFragment() {
+
+    override fun fillList() {
+        dataList.add("toast")
+        dataList.add("getVersionName")
+    }
+
+    override fun handleClick(position: Int) {
+        context?.run {
+            when (position) {
+                0 -> toast("I'am a short toast!")
+                1 -> toast(getVersionName())
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/drawable/arrow_back.xml b/app/src/main/res/drawable/arrow_back.xml
new file mode 100644
index 0000000..5a52737
--- /dev/null
+++ b/app/src/main/res/drawable/arrow_back.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:pathData="M20,11H7.83l5.59,-5.59L12,4l-8,8 8,8 1.41,-1.41L7.83,13H20v-2z" />
+</vector>
diff --git a/app/src/main/res/layout/activity_ext.xml b/app/src/main/res/layout/activity_ext.xml
new file mode 100644
index 0000000..bdda80b
--- /dev/null
+++ b/app/src/main/res/layout/activity_ext.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                                                     xmlns:app="http://schemas.android.com/apk/res-auto"
+                                                     android:layout_width="match_parent"
+                                                     android:layout_height="match_parent">
+
+    <com.google.android.material.appbar.AppBarLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
+
+        <androidx.appcompat.widget.Toolbar
+                android:id="@+id/mToolbar"
+                android:layout_width="match_parent"
+                android:layout_height="?attr/actionBarSize"
+                android:background="?attr/colorPrimary"
+                app:layout_scrollFlags="scroll|enterAlways"
+                app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>
+
+        <com.google.android.material.tabs.TabLayout
+                android:id="@+id/extTabLayout"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                app:tabIndicatorColor="#ADBE107E"
+                app:tabMode="scrollable"
+                app:tabTextAppearance="@style/TabTextStyle"/>
+
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <androidx.viewpager.widget.ViewPager
+            android:id="@+id/extViewPager"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index cb3836b..2b4a04d 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -6,7 +6,7 @@
         android:layout_height="match_parent"
         tools:context="luyao.util.ktx.MainActivity"
         android:orientation="vertical"
-        android:gravity="center_horizontal">
+        android:gravity="center">
 
     <Button
             android:id="@+id/btMvvm"
@@ -14,4 +14,11 @@
             android:layout_height="50dp"
             android:text="MVVM"/>
 
+    <Button
+            android:id="@+id/btExt"
+            android:layout_width="100dp"
+            android:layout_height="50dp"
+            android:text="扩展函数"
+            android:layout_marginTop="10dp"/>
+
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_context_ext.xml b/app/src/main/res/layout/fragment_context_ext.xml
new file mode 100644
index 0000000..5a8d214
--- /dev/null
+++ b/app/src/main/res/layout/fragment_context_ext.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent">
+
+    <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/recycleView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+
+    </androidx.recyclerview.widget.RecyclerView>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_common.xml b/app/src/main/res/layout/item_common.xml
new file mode 100644
index 0000000..37b14df
--- /dev/null
+++ b/app/src/main/res/layout/item_common.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:layout_width="match_parent"
+              android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+    <TextView
+            android:id="@+id/itemTv"
+            android:textColor="#000000"
+            android:textSize="16sp"
+            android:layout_width="match_parent"
+            android:layout_height="40dp"
+            android:paddingLeft="8dp"
+            android:gravity="center_vertical"/>
+
+    <View
+            android:layout_width="match_parent"
+            android:layout_height="1dp"
+            android:background="@color/light_gray"/>
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/title_layout.xml b/app/src/main/res/layout/title_layout.xml
new file mode 100644
index 0000000..c7abdd9
--- /dev/null
+++ b/app/src/main/res/layout/title_layout.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+
+    <androidx.appcompat.widget.Toolbar
+        android:id="@+id/mToolbar"
+        android:layout_width="match_parent"
+        android:layout_height="?actionBarSize"
+        android:background="?attr/colorPrimary"
+        app:titleTextColor="#ffffff"
+        android:theme="@style/ThemeOverlay.AppCompat.ActionBar"
+        app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
+
+</FrameLayout>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 69b2233..5600611 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -3,4 +3,5 @@
     <color name="colorPrimary">#008577</color>
     <color name="colorPrimaryDark">#00574B</color>
     <color name="colorAccent">#D81B60</color>
+    <color name="light_gray">#e0e0e0</color>
 </resources>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 5885930..0bf40a7 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -1,11 +1,15 @@
 <resources>
 
     <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
         <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>
     </style>
 
+    <style name="TabTextStyle" parent="TextAppearance.Design.Tab">
+        <item name="textAllCaps">false</item>
+    </style>
+
 </resources>
diff --git a/build.gradle b/build.gradle
index b39ac10..af61924 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,7 +19,7 @@ allprojects {
     repositories {
         google()
         jcenter()
-        
+        maven { url "https://jitpack.io" }
     }
 }
 
diff --git a/library/src/main/AndroidManifest.xml b/library/src/main/AndroidManifest.xml
index ef98331..adcf326 100644
--- a/library/src/main/AndroidManifest.xml
+++ b/library/src/main/AndroidManifest.xml
@@ -1,2 +1,2 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-          package="luyao.ktx"/>
+          package="luyao.util.ktx"/>
diff --git a/library/src/main/java/luyao/ktx/ext/ContextExt.kt b/library/src/main/java/luyao/ktx/ext/ContextExt.kt
deleted file mode 100644
index 3f545a7..0000000
--- a/library/src/main/java/luyao/ktx/ext/ContextExt.kt
+++ /dev/null
@@ -1,27 +0,0 @@
-package luyao.ktx.ext
-
-import android.content.Context
-import android.widget.Toast
-import androidx.annotation.StringRes
-
-/**
- * Created by luyao
- * on 2019/5/31 16:42
- */
-
-var showToast: Toast? = null
-
-fun Context.toast(content: String, duration: Int = Toast.LENGTH_SHORT) {
-    showToast?.apply {
-        setText(content)
-        show()
-    } ?: run {
-        Toast.makeText(this.applicationContext, content, Toast.LENGTH_SHORT).apply {
-            showToast = this
-        }.show()
-    }
-}
-
-fun Context.toast(@StringRes id: Int, duration: Int = Toast.LENGTH_SHORT) {
-    toast(getString(id), duration)
-}
diff --git a/library/src/main/java/luyao/ktx/base/BaseActivity.kt b/library/src/main/java/luyao/util/ktx/base/BaseActivity.kt
similarity index 96%
rename from library/src/main/java/luyao/ktx/base/BaseActivity.kt
rename to library/src/main/java/luyao/util/ktx/base/BaseActivity.kt
index 88b28db..a153844 100644
--- a/library/src/main/java/luyao/ktx/base/BaseActivity.kt
+++ b/library/src/main/java/luyao/util/ktx/base/BaseActivity.kt
@@ -1,4 +1,4 @@
-package luyao.ktx.base
+package luyao.util.ktx.base
 
 import android.content.Intent
 import android.os.Bundle
diff --git a/library/src/main/java/luyao/util/ktx/base/BaseFragment.kt b/library/src/main/java/luyao/util/ktx/base/BaseFragment.kt
new file mode 100644
index 0000000..be2bbf9
--- /dev/null
+++ b/library/src/main/java/luyao/util/ktx/base/BaseFragment.kt
@@ -0,0 +1,29 @@
+package luyao.util.ktx.base
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+
+/**
+ * Created by luyao
+ * on 2019/6/10 10:47
+ */
+abstract class BaseFragment : androidx.fragment.app.Fragment() {
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater.inflate(getLayoutResId(), container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        initView()
+        initData()
+        super.onViewCreated(view, savedInstanceState)
+    }
+
+    abstract fun getLayoutResId(): Int
+
+    abstract fun initView()
+
+    abstract fun initData()
+}
\ No newline at end of file
diff --git a/library/src/main/java/luyao/ktx/base/BaseVMActivity.kt b/library/src/main/java/luyao/util/ktx/base/BaseVMActivity.kt
similarity index 96%
rename from library/src/main/java/luyao/ktx/base/BaseVMActivity.kt
rename to library/src/main/java/luyao/util/ktx/base/BaseVMActivity.kt
index 6a7bb7a..9b72b7a 100644
--- a/library/src/main/java/luyao/ktx/base/BaseVMActivity.kt
+++ b/library/src/main/java/luyao/util/ktx/base/BaseVMActivity.kt
@@ -1,4 +1,4 @@
-package luyao.ktx.base
+package luyao.util.ktx.base
 
 import android.os.Bundle
 import androidx.lifecycle.LifecycleObserver
diff --git a/library/src/main/java/luyao/util/ktx/base/BaseVMFragment.kt b/library/src/main/java/luyao/util/ktx/base/BaseVMFragment.kt
new file mode 100644
index 0000000..24a8dc9
--- /dev/null
+++ b/library/src/main/java/luyao/util/ktx/base/BaseVMFragment.kt
@@ -0,0 +1,49 @@
+package luyao.util.ktx.base
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.lifecycle.ViewModelProviders
+
+/**
+ * Created by luyao
+ * on 2019/6/10 10:48
+ */
+abstract class BaseVMFragment<VM : BaseViewModel> : androidx.fragment.app.Fragment() {
+
+    protected lateinit var mViewModel: VM
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater.inflate(getLayoutResId(), container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        initVM()
+        initView()
+        initData()
+        startObserve()
+        super.onViewCreated(view, savedInstanceState)
+    }
+
+    open fun startObserve() {}
+    abstract fun getLayoutResId(): Int
+
+    abstract fun initView()
+
+    abstract fun initData()
+
+    private fun initVM() {
+        providerVMClass()?.let {
+            mViewModel = ViewModelProviders.of(this).get(it)
+            lifecycle.addObserver(mViewModel)
+        }
+    }
+
+    open fun providerVMClass(): Class<VM>? = null
+
+    override fun onDestroy() {
+        lifecycle.removeObserver(mViewModel)
+        super.onDestroy()
+    }
+}
\ No newline at end of file
diff --git a/library/src/main/java/luyao/ktx/base/BaseViewModel.kt b/library/src/main/java/luyao/util/ktx/base/BaseViewModel.kt
similarity index 98%
rename from library/src/main/java/luyao/ktx/base/BaseViewModel.kt
rename to library/src/main/java/luyao/util/ktx/base/BaseViewModel.kt
index 1e0d3c3..908c959 100644
--- a/library/src/main/java/luyao/ktx/base/BaseViewModel.kt
+++ b/library/src/main/java/luyao/util/ktx/base/BaseViewModel.kt
@@ -1,4 +1,4 @@
-package luyao.ktx.base
+package luyao.util.ktx.base
 
 import androidx.lifecycle.LifecycleObserver
 import androidx.lifecycle.MutableLiveData
diff --git a/library/src/main/java/luyao/util/ktx/ext/ToastExt.kt b/library/src/main/java/luyao/util/ktx/ext/ToastExt.kt
new file mode 100644
index 0000000..37d3562
--- /dev/null
+++ b/library/src/main/java/luyao/util/ktx/ext/ToastExt.kt
@@ -0,0 +1,48 @@
+package luyao.util.ktx.ext
+
+import android.content.Context
+import android.widget.Toast
+import androidx.annotation.StringRes
+
+/**
+ * Created by luyao
+ * on 2019/5/31 16:42
+ */
+
+
+fun Context.toast(content: String, duration: Int = Toast.LENGTH_SHORT) {
+    Toast.makeText(this.applicationContext, content, duration).apply {
+        show()
+    }
+}
+
+fun Context.toast(@StringRes id: Int, duration: Int = Toast.LENGTH_SHORT) {
+    toast(getString(id), duration)
+}
+
+fun Context.longToast(content: String) {
+    toast(content, Toast.LENGTH_LONG)
+}
+
+fun Context.longToast(@StringRes id: Int) {
+    toast(id, Toast.LENGTH_LONG)
+}
+
+fun Any.toast(context: Context, content: String, duration: Int = Toast.LENGTH_SHORT) {
+    context.toast(content, duration)
+}
+
+fun Any.toast(context: Context, @StringRes id: Int, duration: Int) {
+    context.toast(id, duration)
+}
+
+fun Any.longToast(context: Context, content: String) {
+    context.longToast(content)
+}
+
+fun Any.longToast(context: Context, @StringRes id: Int) {
+    context.longToast(id)
+}
+
+fun Context.getVersionName(): String = packageManager.getPackageInfo(packageName, 0).versionName
+