修复block造成循环引用导致内存泄露的问题

TZImagePickerController.podspec

 Pod::Spec.new do |s|
   s.name         = "TZImagePickerController"
-  s.version      = "1.0.5"
+  s.version      = "1.0.6"
   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" => "736420282@qq.com" }
   s.platform     = :ios
   s.ios.deployment_target = "6.0"
-  s.source       = { :git => "https://github.com/banchichen/TZImagePickerController.git", :tag => "1.0.5" }
+  s.source       = { :git => "https://github.com/banchichen/TZImagePickerController.git", :tag => "1.0.6" }
   s.requires_arc = true
   s.resources    = "TZImagePickerController/TZImagePickerController/Resource/*.{png,xib,nib}"
   s.source_files = "TZImagePickerController/TZImagePickerController/*.{h,m}"

TZImagePickerController/TZImagePickerController/TZImagePickerController.m

@@ -90,6 +90,7 @@
         [self pushToPhotoPickerVc];
         [_tipLable removeFromSuperview];
         [_timer invalidate];
+        _timer = nil;
     }
 }
 
@@ -155,6 +156,8 @@
 
 - (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated {
     if (iOS7Later) viewController.automaticallyAdjustsScrollViewInsets = NO;
+    if (_timer) { [_timer invalidate]; _timer = nil;}
+    
     if (self.childViewControllers.count > 0) {
         UIButton *backButton = [[UIButton alloc] initWithFrame:CGRectMake(3, 0, 44, 44)];
         [backButton setImage:[UIImage imageNamed:@"navi_back"] forState:UIControlStateNormal];

TZImagePickerController/TZImagePickerController/TZPhotoPickerController.m

@@ -231,27 +231,30 @@
     TZAssetCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"TZAssetCell" forIndexPath:indexPath];
     TZAssetModel *model = _photoArr[indexPath.row];
     cell.model = model;
-    typeof(cell) weakCell = cell;
+    
+    __weak typeof(cell) weakCell = cell;
+    __weak typeof(self) weakSelf = self;
+    __weak typeof(_numberImageView.layer) weakLayer = _numberImageView.layer;
     cell.didSelectPhotoBlock = ^(BOOL isSelected) {
         // 1. cancel select / 取消选择
         if (isSelected) {
             weakCell.selectPhotoButton.selected = NO;
             model.isSelected = NO;
-            [self.selectedPhotoArr removeObject:model];
-            [self refreshBottomToolBarStatus];
+            [weakSelf.selectedPhotoArr removeObject:model];
+            [weakSelf refreshBottomToolBarStatus];
         } else {
             // 2. select:check if over the maxImagesCount / 选择照片,检查是否超过了最大个数的限制
-            TZImagePickerController *imagePickerVc = (TZImagePickerController *)self.navigationController;
-            if (self.selectedPhotoArr.count < imagePickerVc.maxImagesCount) {
+            TZImagePickerController *imagePickerVc = (TZImagePickerController *)weakSelf.navigationController;
+            if (weakSelf.selectedPhotoArr.count < imagePickerVc.maxImagesCount) {
                 weakCell.selectPhotoButton.selected = YES;
                 model.isSelected = YES;
-                [self.selectedPhotoArr addObject:model];
-                [self refreshBottomToolBarStatus];
+                [weakSelf.selectedPhotoArr addObject:model];
+                [weakSelf refreshBottomToolBarStatus];
             } else {
                 [imagePickerVc showAlertWithTitle:[NSString stringWithFormat:@"你最多只能选择%zd张照片",imagePickerVc.maxImagesCount]];
             }
         }
-        [UIView showOscillatoryAnimationWithLayer:_numberImageView.layer type:TZOscillatoryAnimationToSmaller];
+         [UIView showOscillatoryAnimationWithLayer:weakLayer type:TZOscillatoryAnimationToSmaller];
     };
     return cell;
 }

TZImagePickerController/TZImagePickerController/TZPhotoPreviewCell.m

@@ -124,5 +124,4 @@
     self.imageContainerView.center = CGPointMake(scrollView.contentSize.width * 0.5 + offsetX, scrollView.contentSize.height * 0.5 + offsetY);
 }
 
-
 @end

TZImagePickerController/TZImagePickerController/TZPhotoPreviewController.m

@@ -234,12 +234,16 @@
 - (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
     TZPhotoPreviewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"TZPhotoPreviewCell" forIndexPath:indexPath];
     cell.model = _photoArr[indexPath.row];
+    
+    __block BOOL _weakIsHideNaviBar = _isHideNaviBar;
+    __weak typeof(_naviBar) weakNaviBar = _naviBar;
+    __weak typeof(_naviBar) weakToolBar = _naviBar;
     if (!cell.singleTapGestureBlock) {
         cell.singleTapGestureBlock = ^(){
             // show or hide naviBar / 显示或隐藏导航栏
-            _isHideNaviBar = !_isHideNaviBar;
-            _naviBar.hidden = _isHideNaviBar;
-            _toolBar.hidden = _isHideNaviBar;
+            _weakIsHideNaviBar = !_weakIsHideNaviBar;
+            weakNaviBar.hidden = _weakIsHideNaviBar;
+            weakToolBar.hidden = _weakIsHideNaviBar;
         };
     }
     return cell;

TZImagePickerController/ViewController.m

@@ -79,6 +79,7 @@
     [imagePickerVc setDidFinishPickingPhotosHandle:^(NSArray<UIImage *> *photos, NSArray *assets) {
     
     }];
+    
     [self presentViewController:imagePickerVc animated:YES completion:nil];
 }
 
@@ -87,7 +88,7 @@
 /// User click cancel button
 /// 用户点击了取消
 - (void)imagePickerControllerDidCancel:(TZImagePickerController *)picker {
-    NSLog(@"cancel");
+    // NSLog(@"cancel");
 }
 
 /// User finish picking photo，if assets are not empty, user picking original photo.