diff --git a/corelibrary/src/main/java/com/dalimao/corelibrary/VerificationCodeInput.java b/corelibrary/src/main/java/com/dalimao/corelibrary/VerificationCodeInput.java
index 254cb4c..64c8ab8 100644
--- a/corelibrary/src/main/java/com/dalimao/corelibrary/VerificationCodeInput.java
+++ b/corelibrary/src/main/java/com/dalimao/corelibrary/VerificationCodeInput.java
@@ -59,6 +59,8 @@ public class VerificationCodeInput extends ViewGroup {
         boxBgFocus =  a.getDrawable(R.styleable.vericationCodeInput_box_bg_focus);
         boxBgNormal = a.getDrawable(R.styleable.vericationCodeInput_box_bg_normal);
         inputType = a.getString(R.styleable.vericationCodeInput_inputType);
+        boxWidth = (int) a.getDimension(R.styleable.vericationCodeInput_child_width, boxWidth);
+        boxHeight = (int) a.getDimension(R.styleable.vericationCodeInput_child_height, boxHeight);
         initViews();
 
     }
diff --git a/corelibrary/src/main/res/values/attrs.xml b/corelibrary/src/main/res/values/attrs.xml
index ef56b32..e500b14 100644
--- a/corelibrary/src/main/res/values/attrs.xml
+++ b/corelibrary/src/main/res/values/attrs.xml
@@ -5,6 +5,8 @@
         <attr name="box" format="integer" />
         <attr name="child_h_padding" format="dimension"/>
         <attr name="child_v_padding" format="dimension"/>
+        <attr name="child_width" format="dimension"/>
+        <attr name="child_height" format="dimension"/>
         <attr name="padding" format="dimension"/>
         <attr name="box_bg_focus" format="reference"/>
         <attr name="box_bg_normal" format="reference"/>
diff --git a/simple/build.gradle b/simple/build.gradle
index f179fe8..db7910c 100644
--- a/simple/build.gradle
+++ b/simple/build.gradle
@@ -26,6 +26,6 @@ dependencies {
     })
     compile 'com.android.support:appcompat-v7:24.2.1'
     testCompile 'junit:junit:4.12'
-    //compile 'com.github.liuguangli:VerificationCodeInput:1.0'
+    //compile 'com.github.liuguangli:VerificationCodeInput:1.3'
     compile project(':corelibrary');
 }
diff --git a/simple/src/main/res/layout/activity_main.xml b/simple/src/main/res/layout/activity_main.xml
index b2b3f2e..a1de767 100644
--- a/simple/src/main/res/layout/activity_main.xml
+++ b/simple/src/main/res/layout/activity_main.xml
@@ -73,4 +73,24 @@
      android:layout_centerInParent="true"
      android:layout_marginBottom="16dp"
      />
+
+ <TextView
+     android:layout_width="wrap_content"
+     android:layout_height="wrap_content"
+     android:text="定义大小："
+     android:padding="12dp"
+     />
+ <com.dalimao.corelibrary.VerificationCodeInput
+     android:layout_width="wrap_content"
+     android:layout_height="wrap_content"
+     ver:box="5"
+     ver:box_bg_normal="@drawable/verification_edit_bg_normal"
+     ver:box_bg_focus="@drawable/verification_edit_bg_focus"
+     ver:child_h_padding="5dp"
+     ver:child_width="60dp"
+     ver:child_height="40dp"
+     ver:inputType="password"
+     android:layout_centerInParent="true"
+     android:layout_marginBottom="16dp"
+     />
 </LinearLayout>