diff --git a/src/AlbumView.js b/src/AlbumView.js
index ba84fed..21a0732 100644
--- a/src/AlbumView.js
+++ b/src/AlbumView.js
@@ -155,7 +155,7 @@ export default class extends React.PureComponent {
 
     _onDeletePageFinish = (data) => {
         const selectedItems = this.state.selectedItems
-            .filter(item => data.indexOf(item.uri) >= 0);
+            .filter(item => data.some(image => item.uri === image.uri));
         this.setState({selectedItems});
     };
 
@@ -183,7 +183,7 @@ export default class extends React.PureComponent {
         if (this.state.selectedItems.length > 0) {
             this.props.navigation.navigate(PageKeys.preview, {
                 ...this.props,
-                images: this.state.selectedItems.map(item => item.uri),
+                images: this.state.selectedItems,
                 callback: this._onDeletePageFinish,
             });
         }
diff --git a/src/PreviewMultiView.js b/src/PreviewMultiView.js
index d9df48d..c8c5912 100644
--- a/src/PreviewMultiView.js
+++ b/src/PreviewMultiView.js
@@ -70,7 +70,7 @@ export default class extends React.PureComponent {
     _onScroll = ({nativeEvent: {contentOffset: {x}}}) => {
         const safeArea = getSafeAreaInset();
         const width = Dimensions.get('window').width - safeArea.left - safeArea.right;
-        const index = Math.floor(x / width);
+        const index = Math.round(x / width);
         if (index < 0 || index >= this.state.images.length) {
             return;
         }