Fix a small issue

Author: li-yu

README-EN.md

@@ -14,7 +14,7 @@ From v1.0.5, **not support xlsx** format any more, because poi ooxml lib and oth
 ## How to use
 #### 1. Add Gradle dependencies
 ``` Gradle
-compile 'com.liyu.tools:sqlitetoexcel:1.0.6'
+compile 'com.liyu.tools:sqlitetoexcel:1.0.7'
 ```
 
 #### 2. SQLite -> Excel Sample code(Specific examples can be found in [demo](https://github.com/li-yu/SQLiteToExcel/blob/master/app/src/main/java/com/liyu/demo/MainActivity.java))

README.md

@@ -14,7 +14,7 @@ SQLiteToExcel 库整合了 [Apache POI](http://poi.apache.org/) 和一些基本
 ## 如何使用
 #### 1. 添加 Gradle 依赖
 ``` Gradle
-compile 'com.liyu.tools:sqlitetoexcel:1.0.6'
+compile 'com.liyu.tools:sqlitetoexcel:1.0.7'
 ```
 
 #### 2. SQLite -> Excel 示例代码（具体示例可参考 [demo](https://github.com/li-yu/SQLiteToExcel/blob/master/app/src/main/java/com/liyu/demo/MainActivity.java) 工程）

sqlitetoexcel/build.gradle

@@ -10,7 +10,7 @@ android {
         minSdkVersion 15
         targetSdkVersion 25
         versionCode 7
-        versionName "1.0.6"
+        versionName "1.0.7"
     }
     buildTypes {
         release {
@@ -29,7 +29,7 @@ dependencies {
 def siteUrl = 'https://github.com/li-yu/SQLiteToExcel'
 def gitUrl = 'https://github.com/li-yu/SQLiteToExcel.git'
 
-version = "1.0.6"
+version = "1.0.7"
 group = "com.liyu.tools"
 
 Properties properties = new Properties()
@@ -46,9 +46,9 @@ bintray {
         licenses = ["Apache-2.0"]
         publish = true
         version {
-            name = '1.0.6'
+            name = '1.0.7'
             released  = new Date()
-            vcsTag = 'v1.0.6'
+            vcsTag = 'v1.0.7'
             attributes = ['gradle-plugin': 'com.use.less:com.use.less.gradle:gradle-useless-plugin']
             desc = 'A simple lib for Android to export SQLite to Excel.'
         }

sqlitetoexcel/src/main/java/com/liyu/sqlitetoexcel/SQLiteToExcel.java

@@ -243,7 +243,7 @@ private void fillSheet(String table, Sheet sheet) {
                     patriarch.createPicture(anchor, workbook.addPicture(cursor.getBlob(j), HSSFWorkbook.PICTURE_TYPE_JPEG));
                 } else {
                     String value = cursor.getString(j);
-                    if (value.length() >= 32767) {
+                    if (!TextUtils.isEmpty(value) && value.length() >= 32767) {
                         value = value.substring(0, 32766);
                     }
                     cellA.setCellValue(new HSSFRichTextString(value));