优化预览界面状态栏的处理代码

TZImagePickerController/TZImagePickerController/TZPhotoPickerController.m

@@ -106,6 +106,10 @@ static CGSize AssetGridThumbnailSize;
     }
 }
 
+- (BOOL)prefersStatusBarHidden {
+    return NO;
+}
+
 - (void)configCollectionView {
     TZImagePickerController *tzImagePickerVc = (TZImagePickerController *)self.navigationController;
 

TZImagePickerController/TZImagePickerController/TZPhotoPreviewController.m

@@ -68,6 +68,10 @@
     if (iOS7Later) [UIApplication sharedApplication].statusBarHidden = NO;
 }
 
+- (BOOL)prefersStatusBarHidden {
+    return YES;
+}
+
 - (void)configCustomNaviBar {
     TZImagePickerController *tzImagePickerVc = (TZImagePickerController *)self.navigationController;
 

TZImagePickerController/ViewController.m

@@ -72,6 +72,10 @@
     [self configCollectionView];
 }
 
+- (BOOL)prefersStatusBarHidden {
+    return NO;
+}
+
 - (void)configCollectionView {
     _layout = [[LxGridViewFlowLayout alloc] init];
     _margin = 4;