support multiple vertical spaces

Author: hongxinhope

Example/EmptyDataDemoTableViewController.swift

@@ -116,6 +116,10 @@ class EmptyDataDemoTableViewController: UITableViewController, TBEmptyDataSetDat
         return 0
     }
 
+    func verticalSpacesForEmptyDataSet(scrollView: UIScrollView!) -> [CGFloat] {
+        return [25, 8]
+    }
+
     func customViewForEmptyDataSet(scrollView: UIScrollView!) -> UIView? {
         if isLoading {
             let activityIndicator = UIActivityIndicatorView(activityIndicatorStyle: .Gray)

Example/Info.plist

@@ -15,11 +15,11 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.5</string>
+	<string>1.6</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>6</string>
+	<string>7</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>UILaunchStoryboardName</key>

README.md

@@ -57,8 +57,8 @@ func verticalOffsetForEmptyDataSet(scrollView: UIScrollView!) -> CGFloat {
     // return the vertical offset for EmptyDataSet, default is 0
 }
 
-func verticalSpaceForEmptyDataSet(scrollView: UIScrollView!) -> CGFloat {
-    // return the vertical space for EmptyDataSet, default is 12
+func verticalSpacesForEmptyDataSet(scrollView: UIScrollView!) -> [CGFloat] {
+    // return the vertical spaces from top to bottom for EmptyDataSet, default is [12, 12]
 }
 
 func customViewForEmptyDataSet(scrollView: UIScrollView!) -> UIView? {

TBEmptyDataSet.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name         = "TBEmptyDataSet"
-  s.version      = "1.5"
+  s.version      = "1.6"
   s.summary      = "An extension of UITableView/UICollectionView's super class, it will display a placeholder when the data is empty."
 
   s.homepage     = "https://github.com/teambition/TBEmptyDataSet"

TBEmptyDataSet/EmptyDataView.swift

@@ -77,7 +77,7 @@ class EmptyDataView: UIView {
     }
 
     var verticalOffset: CGFloat!
-    var verticalSpace: CGFloat!
+    var verticalSpaces: [CGFloat]!
 
     // MARK: - Helper
     private func removeAllConstraints() {
@@ -172,7 +172,8 @@ class EmptyDataView: UIView {
             for (index, viewString) in viewStrings.enumerate() {
                 verticalFormat += "[\(viewString)]"
                 if index != viewStrings.count - 1 {
-                    verticalFormat += "-\(verticalSpace)-"
+                    let verticalSpace = index < verticalSpaces.count ? verticalSpaces[index] : DefaultValues.verticalSpace
+                    verticalFormat += "-(\(verticalSpace))-"
                 }
             }
 

TBEmptyDataSet/ProtocolExtensions.swift

@@ -33,8 +33,8 @@ public extension TBEmptyDataSetDataSource {
         return DefaultValues.verticalOffset
     }
 
-    func verticalSpaceForEmptyDataSet(scrollView: UIScrollView!) -> CGFloat {
-        return DefaultValues.verticalSpace
+    func verticalSpacesForEmptyDataSet(scrollView: UIScrollView!) -> [CGFloat] {
+        return [DefaultValues.verticalSpace, DefaultValues.verticalSpace]
     }
 
     func customViewForEmptyDataSet(scrollView: UIScrollView!) -> UIView? {

TBEmptyDataSet/Supporting Files/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.5</string>
+	<string>1.6</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>

TBEmptyDataSet/TBEmptyDataSet.swift

@@ -17,7 +17,7 @@ public protocol TBEmptyDataSetDataSource: NSObjectProtocol {
     func backgroundColorForEmptyDataSet(scrollView: UIScrollView!) -> UIColor?
 
     func verticalOffsetForEmptyDataSet(scrollView: UIScrollView!) -> CGFloat
-    func verticalSpaceForEmptyDataSet(scrollView: UIScrollView!) -> CGFloat
+    func verticalSpacesForEmptyDataSet(scrollView: UIScrollView!) -> [CGFloat]
 
     func customViewForEmptyDataSet(scrollView: UIScrollView!) -> UIView?
 }
@@ -124,8 +124,8 @@ extension UIScrollView: UIGestureRecognizerDelegate {
         return emptyDataSetDataSource?.verticalOffsetForEmptyDataSet(self) ?? DefaultValues.verticalOffset
     }
 
-    private func emptyDataSetVerticalSpace() -> CGFloat {
-        return emptyDataSetDataSource?.verticalSpaceForEmptyDataSet(self) ?? DefaultValues.verticalSpace
+    private func emptyDataSetVerticalSpaces() -> [CGFloat] {
+        return emptyDataSetDataSource?.verticalSpacesForEmptyDataSet(self) ?? [DefaultValues.verticalSpace, DefaultValues.verticalSpace]
     }
 
     private func emptyDataSetCustomView() -> UIView? {
@@ -252,7 +252,7 @@ extension UIScrollView: UIGestureRecognizerDelegate {
         emptyDataView.resetEmptyDataView()
 
         emptyDataView!.verticalOffset = emptyDataSetVerticalOffset()
-        emptyDataView!.verticalSpace = emptyDataSetVerticalSpace()
+        emptyDataView!.verticalSpaces = emptyDataSetVerticalSpaces()
 
         if let customView = emptyDataSetCustomView() {
             emptyDataView.customView = customView