add setCurrentIndexPath method

younatics · Sep 11, 2017 · 6fd9d15 · 6fd9d15
1 parent e317885
commit 6fd9d15
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Showing 2 changed files with 34 additions and 5 deletions.
diff --git a/MediaBrowser/MediaBrowser.swift b/MediaBrowser/MediaBrowser.swift
@@ -201,10 +201,10 @@ public class MediaBrowser: UIViewController, UIScrollViewDelegate, UIActionSheet
     /// Caching image count both side (e.g. when index 1, caching 0 and 2)
     public var cachingImageCount = 1
 
-    /// Caching before MediaBrowser comes up
-    public var precachingEnabled = false {
+    /// Caching before MediaBrowser comes up, set
+    public var preCachingEnabled = false {
         didSet {
-            if precachingEnabled {
+            if preCachingEnabled {
                 startPreCaching()
             }
         }
@@ -1037,7 +1037,7 @@ public class MediaBrowser: UIViewController, UIScrollViewDelegate, UIActionSheet
 
     func startPreCaching() {
         if let d = delegate {
-            let media = d.media(for: self, at: 0)
+            let media = d.media(for: self, at: currentPageIndex)
             media.loadUnderlyingImageAndNotify()
 
         } else {
@@ -1064,6 +1064,32 @@ public class MediaBrowser: UIViewController, UIScrollViewDelegate, UIActionSheet
     }
 
     //MARK: - Paging
+
+    /**
+     setCurrentIndex to show first. 
+     When precaching, set this method first.
+
+     - Parameter index:  Int
+     */
+    public func setCurrentIndex(at index: Int) {
+        var internalIndex = 0
+        let mediaCount = self.numberOfMedias
+        if mediaCount != 0 {
+            if index >= mediaCount {
+                internalIndex = self.numberOfMedias - 1
+            } else {
+                internalIndex = index
+            }
+
+            currentPageIndex = internalIndex
+            if self.isViewLoaded {
+                self.jumpToPageAtIndex(index: internalIndex, animated: false)
+                if !viewIsActive {
+                    self.tilePages()
+                }
+            }
+        }
+    }
 
     func tilePages() {
         // Calculate which pages should be visible

diff --git a/MediaBrowserDemo/ViewController.swift b/MediaBrowserDemo/ViewController.swift
@@ -33,8 +33,10 @@ class ViewController: UITableViewController {
         super.viewDidLoad()
 
 
-        // Set delegate and pre-cahing when you need
+//        Set delegate and pre-cahing when you need - add current index when you need to caching index
 //        browser = MediaBrowser(delegate: self)
+//        browser.setCurrentIndex(at: 1)
+//        
 //        browser.precachingEnabled = true
 
         let font = UIFont.systemFont(ofSize: 12)
@@ -192,6 +194,7 @@ extension ViewController {
         browser.startOnGrid = startOnGrid
         browser.enableSwipeToDismiss = true
         browser.autoPlayOnAppear = autoPlayOnAppear
+//        browser.setCurrentIndex(at: 1)
 
 
         if displaySelectionButtons {