Release 3.1.0 version of LitePal.

core/build.gradle

@@ -50,7 +50,7 @@ publish {
     userOrg = 'sinyu890807'
     groupId = 'org.litepal.guolindev'
     artifactId = 'core'
-    publishVersion = '3.0.1'
+    publishVersion = '3.1.0'
     desc = 'An Android library that allows developers to use SQLite database extremely easy'
     website = 'https://github.com/LitePalFramework/LitePal'
 }
\ No newline at end of file

core/src/main/java/org/litepal/LitePal.kt

@@ -1086,6 +1086,7 @@ object LitePal {
      *
      * @param collection
      * Holds all models to save.
+     * @return True if all records in collection are saved. False none record in collection is saved. There won't be partial saved condition.
      */
     @JvmStatic
     fun <T : LitePalSupport> saveAll(collection: Collection<T>) = Operator.saveAll(collection)

core/src/main/java/org/litepal/extension/LitePal.kt

@@ -616,6 +616,7 @@ inline fun <reified T> LitePal.isExist(vararg conditions: String?) = isExist(T::
  *
  * @param collection
  * Holds all models to save.
+ * @return True if all records in collection are saved. False none record in collection is saved. There won't be partial saved condition.
  */
 fun <T : LitePalSupport> Collection<T>.saveAll() = LitePal.saveAll(this)