diff --git a/demo/src/main/AndroidManifest.xml b/demo/src/main/AndroidManifest.xml
index 2a5f51f..c8e26a3 100644
--- a/demo/src/main/AndroidManifest.xml
+++ b/demo/src/main/AndroidManifest.xml
@@ -17,6 +17,7 @@
             </intent-filter>
         </activity>
         <activity android:name=".CustomAdaptActivity"/>
+        <activity android:name=".FragmentHost"/>
 
         <!-- 如果您项目中的所有页面都只需要以高或宽中的一个作为基准进行适配的话, 那就只需要填写高或宽中的一个设计图尺寸即可 -->
         <meta-data
diff --git a/demo/src/main/java/me/jessyan/autosize/demo/FragmentHost.java b/demo/src/main/java/me/jessyan/autosize/demo/FragmentHost.java
new file mode 100644
index 0000000..e80410e
--- /dev/null
+++ b/demo/src/main/java/me/jessyan/autosize/demo/FragmentHost.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2018 JessYan
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package me.jessyan.autosize.demo;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.app.AppCompatActivity;
+
+import me.jessyan.autosize.internal.CustomAdapt;
+
+/**
+ * ================================================
+ * Created by JessYan on 2018/8/25 14:39
+ * <a href="mailto:jess.yan.effort@gmail.com">Contact me</a>
+ * <a href="https://github.com/JessYanCoding">Follow me</a>
+ * ================================================
+ */
+public class FragmentHost extends AppCompatActivity implements CustomAdapt{
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_host);
+        getSupportFragmentManager().beginTransaction().add(R.id.container1, new CustomFragment1()).commit();
+        getSupportFragmentManager().beginTransaction().add(R.id.container2, new CustomFragment2()).commit();
+        getSupportFragmentManager().beginTransaction().add(R.id.container3, new CustomFragment3()).commit();
+    }
+
+    @Override
+    public boolean isBaseOnWidth() {
+        return true;
+    }
+
+    @Override
+    public float getSizeInDp() {
+        return 720;
+    }
+}
diff --git a/demo/src/main/res/layout/activity_host.xml b/demo/src/main/res/layout/activity_host.xml
new file mode 100644
index 0000000..0e4dfb4
--- /dev/null
+++ b/demo/src/main/res/layout/activity_host.xml
@@ -0,0 +1,24 @@
+<?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="match_parent"
+              android:orientation="vertical">
+
+    <FrameLayout
+        android:id="@+id/container1"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"/>
+
+    <FrameLayout
+        android:id="@+id/container2"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"/>
+
+    <FrameLayout
+        android:id="@+id/container3"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"/>
+</LinearLayout>
\ No newline at end of file