相册内无照片时给出提示，发布3.1.4版本

README.md

@@ -133,6 +133,7 @@ A：不要去拿PHImageFileURLKey，没用的，只有通过Photos框架才能
 
 ## 六. Release Notes 最近更新     
 
+3.1.4 相册内无照片时给出提示        
 3.1.3 适配阿拉伯等语言下从右往左布局的特性         
 3.0.8 新增gifImagePlayBlock允许使用FLAnimatedImage等替换内部的GIF播放方案         
 **3.0.7 适配iPhoneXR、XS、XS Max，建议大家尽快更新**           

TZImagePickerController.podspec

 Pod::Spec.new do |s|
   s.name         = "TZImagePickerController"
-  s.version      = "3.1.3"
+  s.version      = "3.1.4"
   s.summary      = "A clone of UIImagePickerController, support picking multiple photos、original photo and video"
   s.homepage     = "https://github.com/banchichen/TZImagePickerController"
   s.license      = "MIT"
   s.author       = { "banchichen" => "tanzhenios@foxmail.com" }
   s.platform     = :ios
   s.ios.deployment_target = "8.0"
-  s.source       = { :git => "https://github.com/banchichen/TZImagePickerController.git", :tag => "3.1.3" }
+  s.source       = { :git => "https://github.com/banchichen/TZImagePickerController.git", :tag => "3.1.4" }
   s.requires_arc = true
   s.resources    = "TZImagePickerController/TZImagePickerController/*.{png,bundle}"
   s.source_files = "TZImagePickerController/TZImagePickerController/*.{h,m}"

TZImagePickerController/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>3.1.3</string>
+	<string>3.1.4</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>

TZImagePickerController/TZImagePickerController/TZImageManager.m

@@ -142,9 +142,9 @@ static dispatch_once_t onceToken;
             // 有可能是PHCollectionList类的的对象，过滤掉
             if (![collection isKindOfClass:[PHAssetCollection class]]) continue;
             // 过滤空相册
-            if (collection.estimatedAssetCount <= 0) continue;
+            if (collection.estimatedAssetCount <= 0 && ![self isCameraRollAlbum:collection]) continue;
             PHFetchResult *fetchResult = [PHAsset fetchAssetsInAssetCollection:collection options:option];
-            if (fetchResult.count < 1) continue;
+            if (fetchResult.count < 1 && ![self isCameraRollAlbum:collection]) continue;
             
             if ([self.pickerDelegate respondsToSelector:@selector(isAlbumCanSelect:result:)]) {
                 if (![self.pickerDelegate isAlbumCanSelect:collection.localizedTitle result:fetchResult]) {
@@ -161,7 +161,9 @@ static dispatch_once_t onceToken;
             }
         }
     }
-    if (completion && albumArr.count > 0) completion(albumArr);
+    if (completion) {
+        completion(albumArr);
+    }
 }
 
 #pragma mark - Get Assets

TZImagePickerController/TZImagePickerController/TZImagePickerController.bundle/en.lproj/Localizable.strings

 "OK" = "OK";

TZImagePickerController/TZImagePickerController/TZImagePickerController.bundle/vi.lproj/Localizable.strings

@@ -9,6 +9,7 @@
 "Preview" = "Xem trước";
 "Full image" = "Hình gốc";
 "Processing..." = "Đang xử lý...";
+"No Photos or Videos" = "Không có ảnh hoặc video";
 "Can not use camera" = "Máy chụp hình không khả dụng";
 "Synchronizing photos from iCloud" = "Đang đồng bộ hình ảnh từ ICloud";
 "Can not choose both video and photo" = "Trong lúc chọn hình ảnh không cùng lúc chọn video";

TZImagePickerController/TZImagePickerController/TZImagePickerController.bundle/zh-Hans.lproj/Localizable.strings

 "OK" = "确定";

TZImagePickerController/TZImagePickerController/TZImagePickerController.bundle/zh-Hant.lproj/Localizable.strings

 "OK" = "確定";

TZImagePickerController/TZImagePickerController/TZImagePickerController.h

@@ -4,7 +4,7 @@
 //
 //  Created by 谭真 on 15/12/24.
 //  Copyright © 2015年 谭真. All rights reserved.
-//  version 3.1.3 - 2018.11.22
+//  version 3.1.4 - 2018.11.26
 //  更多信息，请前往项目的github地址：https://github.com/banchichen/TZImagePickerController
 
 /*

TZImagePickerController/TZImagePickerController/TZImagePickerController.m

@@ -4,7 +4,7 @@
 //
 //  Created by 谭真 on 15/12/24.
 //  Copyright © 2015年 谭真. All rights reserved.
-//  version 3.1.3 - 2018.11.22
+//  version 3.1.4 - 2018.11.26
 //  更多信息，请前往项目的github地址：https://github.com/banchichen/TZImagePickerController
 
 #import "TZImagePickerController.h"

TZImagePickerController/TZImagePickerController/TZPhotoPickerController.m

@@ -38,6 +38,7 @@
 @property CGRect previousPreheatRect;
 @property (nonatomic, assign) BOOL isSelectOriginalPhoto;
 @property (nonatomic, strong) TZCollectionView *collectionView;
+@property (nonatomic, strong) UILabel *noDataLabel;
 @property (strong, nonatomic) UICollectionViewFlowLayout *layout;
 @property (nonatomic, strong) UIImagePickerController *imagePickerVc;
 @property (strong, nonatomic) CLLocation *location;
@@ -166,6 +167,15 @@ static CGFloat itemMargin = 5;
         _collectionView.contentSize = CGSizeMake(self.view.tz_width, ((_model.count + self.columnNumber) / self.columnNumber) * self.view.tz_width);
     } else {
         _collectionView.contentSize = CGSizeMake(self.view.tz_width, ((_model.count + self.columnNumber - 1) / self.columnNumber) * self.view.tz_width);
+        if (_models.count == 0) {
+            _noDataLabel = [UILabel new];
+            _noDataLabel.textAlignment = NSTextAlignmentCenter;
+            _noDataLabel.text = [NSBundle tz_localizedStringForKey:@"No Photos or Videos"];
+            CGFloat rgb = 153 / 256.0;
+            _noDataLabel.textColor = [UIColor colorWithRed:rgb green:rgb blue:rgb alpha:1.0];
+            _noDataLabel.font = [UIFont boldSystemFontOfSize:20];
+            [_collectionView addSubview:_noDataLabel];
+        }
     }
     [self.view addSubview:_collectionView];
     [_collectionView registerClass:[TZAssetCell class] forCellWithReuseIdentifier:@"TZAssetCell"];
@@ -293,6 +303,7 @@ static CGFloat itemMargin = 5;
         collectionViewHeight = tzImagePickerVc.showSelectBtn ? self.view.tz_height - toolBarHeight : self.view.tz_height;
     }
     _collectionView.frame = CGRectMake(0, top, self.view.tz_width, collectionViewHeight);
+    _noDataLabel.frame = _collectionView.bounds;
     CGFloat itemWH = (self.view.tz_width - (self.columnNumber + 1) * itemMargin) / self.columnNumber;
     _layout.itemSize = CGSizeMake(itemWH, itemWH);
     _layout.minimumInteritemSpacing = itemMargin;

TZImagePickerControllerFramework/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>3.1.3</string>
+	<string>3.1.4</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>NSPrincipalClass</key>