修复禁止预览的功能

TZImagePickerController/TZImagePickerController/TZAssetCell.h

@@ -33,6 +33,7 @@ typedef enum : NSUInteger {
 @property (nonatomic, copy) NSString *photoDefImageName;
 
 @property (nonatomic, assign) BOOL showSelectBtn;
+@property (assign, nonatomic) BOOL allowPreview;
 
 @end
 

TZImagePickerController/TZImagePickerController/TZAssetCell.m

@@ -230,7 +230,11 @@
 
 - (void)layoutSubviews {
     [super layoutSubviews];
+    if (self.allowPreview) {
         _selectPhotoButton.frame = CGRectMake(self.tz_width - 44, 0, 44, 44);
+    } else {
+        _selectPhotoButton.frame = self.bounds;
+    }
     _selectImageView.frame = CGRectMake(self.tz_width - 27, 0, 27, 27);
     _imageView.frame = CGRectMake(0, 0, self.tz_width, self.tz_height);
     

TZImagePickerController/TZImagePickerController/TZPhotoPickerController.m

@@ -320,7 +320,7 @@ static CGFloat itemMargin = 5;
 }
 
 #pragma mark - Click Event
--(void)navLeftBarButtonClick{
+- (void)navLeftBarButtonClick{
     [self.navigationController popViewControllerAnimated:YES];
 }
 - (void)previewButtonClick {
@@ -451,9 +451,7 @@ static CGFloat itemMargin = 5;
     cell.allowPickingGif = tzImagePickerVc.allowPickingGif;
     cell.model = model;
     cell.showSelectBtn = tzImagePickerVc.showSelectBtn;
-    if (!tzImagePickerVc.allowPreview) {
-        cell.selectPhotoButton.frame = cell.bounds;
-    }
+    cell.allowPreview = tzImagePickerVc.allowPreview;
     
     __weak typeof(cell) weakCell = cell;
     __weak typeof(self) weakSelf = self;