<fix> : 修复删除文件夹后无法使用压缩问题

Author: yudu233

library/src/main/java/com/rain/library/PhotoPick.java

@@ -65,7 +65,7 @@ public static void startCompression(Context context, ArrayList<MediaData> mediaD
                 paths.add(data.getOriginalPath());
             }
         }
-
+        ExternalStorage.getInstance().checkStorageValid();
         Luban.with(context)
                 .load(paths)
                 .setTargetDir(PhotoPickOptions.DEFAULT.imagePath)

library/src/main/java/com/rain/library/ui/PhotoPickActivity.java

@@ -235,6 +235,7 @@ public boolean onCreateOptionsMenu(Menu menu) {
     public boolean onOptionsItemSelected(MenuItem item) {
         if (PhotoPick.isTimeEnabled()) {
             if (item.getItemId() == R.id.ok) {
+                index = 0;
                 checkImages();
                 if (adapter != null && !adapter.getSelectPhotosInfo().isEmpty()) {
                     MediaData mediaData = adapter.getSelectPhotosInfo().get(0);