diff --git a/README.md b/README.md
index 554f385..15bcad0 100644
--- a/README.md
+++ b/README.md
@@ -45,16 +45,25 @@ public class MainActivity extends AppCompatActivity {
         list.add("关键词四");
         list.add("关键词五");
 
-        // 设置TextView水平margin
+        // 设置文字大小
+        flKeyword.setTextSize(15);
+        // 设置文字颜色
+        flKeyword.setTextColor(Color.BLACK);
+        // 设置文字背景
+        flKeyword.setBackgroundResource(R.drawable.bg_frame);
+
+        // 设置文字水平margin
         flKeyword.setHorizontalSpacing(15);
-        // 设置TextView垂直margin
+        // 设置文字垂直margin
         flKeyword.setVerticalSpacing(15);
-        // 设置TextView水平padding
+
+        // 设置文字水平padding
         flKeyword.setTextPaddingH(15);
-        // 设置TextView垂直padding
+        // 设置文字垂直padding
         flKeyword.setTextPaddingH(8);
 
         // 设置UI与点击事件监听
+		// 最后调用setFlowLayout方法
         flKeyword.setFlowLayout(list, new FlowLayout.OnItemClickListener() {
             @Override
             public void onItemClick(String content) {
@@ -81,8 +90,13 @@ public class MainActivity extends AppCompatActivity {
         android:layout_marginLeft="10dp"
         android:layout_marginRight="10dp"
         android:layout_marginTop="10dp"
+        app:backgroundResource="@drawable/bg_frame"
+        app:horizontalSpacing="15dp"
         app:itemColor="@color/colorAccent"
-        app:itemSize="15sp" />
+        app:itemSize="15sp"
+        app:textPaddingH="15dp"
+        app:textPaddingV="8dp"
+        app:verticalSpacing="15dp" />
 
 </RelativeLayout>
 ```
diff --git a/app/build.gradle b/app/build.gradle
index 117473a..0a1130b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -6,8 +6,8 @@ android {
         applicationId "com.yang.flowlayout"
         minSdkVersion 15
         targetSdkVersion 26
-        versionCode 13
-        versionName "1.3"
+        versionCode 14
+        versionName "1.4"
     }
     buildTypes {
         release {
diff --git a/app/src/main/java/com/yang/flowlayout/MainActivity.java b/app/src/main/java/com/yang/flowlayout/MainActivity.java
index e13a6b2..d770910 100644
--- a/app/src/main/java/com/yang/flowlayout/MainActivity.java
+++ b/app/src/main/java/com/yang/flowlayout/MainActivity.java
@@ -1,5 +1,6 @@
 package com.yang.flowlayout;
 
+import android.graphics.Color;
 import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
 import android.widget.Toast;
@@ -26,16 +27,25 @@ protected void onCreate(Bundle savedInstanceState) {
         list.add("关键词四");
         list.add("关键词五");
 
-        // 设置TextView水平margin
+        // 设置文字大小
+        flKeyword.setTextSize(15);
+        // 设置文字颜色
+        flKeyword.setTextColor(Color.BLACK);
+        // 设置文字背景
+        flKeyword.setBackgroundResource(R.drawable.bg_frame);
+
+        // 设置文字水平margin
         flKeyword.setHorizontalSpacing(15);
-        // 设置TextView垂直margin
+        // 设置文字垂直margin
         flKeyword.setVerticalSpacing(15);
-        // 设置TextView水平padding
+
+        // 设置文字水平padding
         flKeyword.setTextPaddingH(15);
-        // 设置TextView垂直padding
+        // 设置文字垂直padding
         flKeyword.setTextPaddingH(8);
 
         // 设置UI与点击事件监听
+        // 最后调用setFlowLayout方法
         flKeyword.setFlowLayout(list, new FlowLayout.OnItemClickListener() {
             @Override
             public void onItemClick(String content) {
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index e1229d8..40fc154 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -11,7 +11,12 @@
         android:layout_marginLeft="10dp"
         android:layout_marginRight="10dp"
         android:layout_marginTop="10dp"
+        app:backgroundResource="@drawable/bg_frame"
+        app:horizontalSpacing="15dp"
         app:itemColor="@color/colorAccent"
-        app:itemSize="15sp" />
+        app:itemSize="15sp"
+        app:textPaddingH="15dp"
+        app:textPaddingV="8dp"
+        app:verticalSpacing="15dp" />
 
 </RelativeLayout>
diff --git a/flowlayoutlibrary/build.gradle b/flowlayoutlibrary/build.gradle
index e993981..575aeee 100644
--- a/flowlayoutlibrary/build.gradle
+++ b/flowlayoutlibrary/build.gradle
@@ -9,8 +9,8 @@ android {
     defaultConfig {
         minSdkVersion 15
         targetSdkVersion 26
-        versionCode 13
-        versionName "1.3"
+        versionCode 14
+        versionName "1.4"
     }
     buildTypes {
         release {
diff --git a/flowlayoutlibrary/src/main/java/com/yang/flowlayoutlibrary/FlowLayout.java b/flowlayoutlibrary/src/main/java/com/yang/flowlayoutlibrary/FlowLayout.java
index a30a4a7..a031481 100644
--- a/flowlayoutlibrary/src/main/java/com/yang/flowlayoutlibrary/FlowLayout.java
+++ b/flowlayoutlibrary/src/main/java/com/yang/flowlayoutlibrary/FlowLayout.java
@@ -15,14 +15,14 @@
 import java.util.List;
 
 /**
- * 关键词流式布局
+ * 文字流式布局
  * Created by yangle on 2016/10/10.
  */
 public class FlowLayout extends RelativeLayout {
 
     // 水平间距，单位为dp
     private int horizontalSpacing = dp2px(15);
-    // 竖直间距，单位为dp
+    // 垂直间距，单位为dp
     private int verticalSpacing = dp2px(15);
     // 行的集合
     private List<Line> lines = new ArrayList<Line>();
@@ -34,11 +34,11 @@ public class FlowLayout extends RelativeLayout {
     private int textSize = sp2px(15);
     // 关键字颜色
     private int textColor = Color.BLACK;
-    // 关键字背景框
+    // 关键字背景
     private int backgroundResource = R.drawable.bg_frame;
     // 关键字水平padding，单位为dp
     private int textPaddingH = dp2px(15);
-    // 关键字竖直padding，单位为dp
+    // 关键字垂直padding，单位为dp
     private int textPaddingV = dp2px(8);
 
     public FlowLayout(Context context) {
@@ -248,52 +248,104 @@ public void setFlowLayout(List<String> list, final OnItemClickListener onItemCli
             this.addView(tv, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
                     ViewGroup.LayoutParams.WRAP_CONTENT));
 
-            tv.setOnClickListener(new OnClickListener() {
-                @Override
-                public void onClick(View v) {
-                    onItemClickListener.onItemClick(tv.getText().toString());
-                }
-            });
+            if (onItemClickListener != null) {
+                tv.setOnClickListener(new OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        onItemClickListener.onItemClick(tv.getText().toString());
+                    }
+                });
+            }
         }
     }
 
+    /**
+     * 点击事件监听
+     */
     public interface OnItemClickListener {
         void onItemClick(String content);
     }
 
+    /**
+     * 设置文字水平间距
+     *
+     * @param horizontalSpacing 间距/dp
+     */
     public void setHorizontalSpacing(int horizontalSpacing) {
         this.horizontalSpacing = dp2px(horizontalSpacing);
     }
 
+    /**
+     * 设置文字垂直间距
+     *
+     * @param verticalSpacing 间距/dp
+     */
     public void setVerticalSpacing(int verticalSpacing) {
         this.verticalSpacing = dp2px(verticalSpacing);
     }
 
+    /**
+     * 设置文字大小
+     *
+     * @param textSize 文字大小/sp
+     */
     public void setTextSize(int textSize) {
         this.textSize = sp2px(textSize);
     }
 
+    /**
+     * 设置文字颜色
+     *
+     * @param textColor 文字颜色
+     */
     public void setTextColor(int textColor) {
         this.textColor = textColor;
     }
 
+    /**
+     * 设置文字背景
+     *
+     * @param backgroundResource 文字背景
+     */
     public void setBackgroundResource(int backgroundResource) {
         this.backgroundResource = backgroundResource;
     }
 
+    /**
+     * 设置文字水平padding
+     *
+     * @param textPaddingH padding/dp
+     */
     public void setTextPaddingH(int textPaddingH) {
         this.textPaddingH = dp2px(textPaddingH);
     }
 
+    /**
+     * 设置文字垂直padding
+     *
+     * @param textPaddingV padding/dp
+     */
     public void setTextPaddingV(int textPaddingV) {
         this.textPaddingV = dp2px(textPaddingV);
     }
 
+    /**
+     * dp转px
+     *
+     * @param dp dp值
+     * @return px值
+     */
     private int dp2px(float dp) {
         return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp,
                 getResources().getDisplayMetrics());
     }
 
+    /**
+     * sp转px
+     *
+     * @param sp sp值
+     * @return px值
+     */
     private int sp2px(float sp) {
         return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, sp,
                 getResources().getDisplayMetrics());