fix: single connection cannot start download without supporting seek

Tianhua Ran · Tianhua Ran · commit 2c27d818de8a · 2019-12-04T20:11:43.000+08:00
Closes #1200
diff --git a/library/src/main/java/com/liulishuo/filedownloader/download/FetchDataTask.java b/library/src/main/java/com/liulishuo/filedownloader/download/FetchDataTask.java
@@ -116,7 +116,8 @@ public void run() throws IOException, IllegalAccessException, IllegalArgumentExc
 
         try {
             final boolean isSupportSeek = CustomComponentHolder.getImpl().isSupportSeek();
-            if (hostRunnable != null && !isSupportSeek) {
+            final boolean isMultiConnection = connectionIndex >= 0;
+            if (isMultiConnection && !isSupportSeek) {
                 throw new IllegalAccessException(
                         "can't using multi-download when the output stream can't support seek");
             }

Original file line number	Diff line number	Diff line change
`@@ -116,7 +116,8 @@ public void run() throws IOException, IllegalAccessException, IllegalArgumentExc`
`116`	`116`
`117`	`117`	`try {`
`118`	`118`	`final boolean isSupportSeek = CustomComponentHolder.getImpl().isSupportSeek();`
`119`		`- if (hostRunnable != null && !isSupportSeek) {`
	`119`	`+ final boolean isMultiConnection = connectionIndex >= 0;`
	`120`	`+ if (isMultiConnection && !isSupportSeek) {`
`120`	`121`	`throw new IllegalAccessException(`
`121`	`122`	`"can't using multi-download when the output stream can't support seek");`
`122`	`123`	`}`