给每个控制器加上preferredStatusBarStyle实现

TZImagePickerController/TZImagePickerController/TZGifPhotoPreviewController.m

@@ -96,6 +96,14 @@
     }
 }
 
+- (UIStatusBarStyle)preferredStatusBarStyle {
+    TZImagePickerController *tzImagePicker = (TZImagePickerController *)self.navigationController;
+    if (tzImagePicker && [tzImagePicker isKindOfClass:[TZImagePickerController class]]) {
+        return tzImagePicker.statusBarStyle;
+    }
+    return [super preferredStatusBarStyle];
+}
+
 #pragma mark - Layout
 
 - (void)viewDidLayoutSubviews {

TZImagePickerController/TZImagePickerController/TZImagePickerController.m

@@ -761,6 +761,14 @@
     // NSLog(@"%@ dealloc",NSStringFromClass(self.class));
 }
 
+- (UIStatusBarStyle)preferredStatusBarStyle {
+    TZImagePickerController *tzImagePicker = (TZImagePickerController *)self.navigationController;
+    if (tzImagePicker && [tzImagePicker isKindOfClass:[TZImagePickerController class]]) {
+        return tzImagePicker.statusBarStyle;
+    }
+    return [super preferredStatusBarStyle];
+}
+
 #pragma mark - Layout
 
 - (void)viewDidLayoutSubviews {

TZImagePickerController/TZImagePickerController/TZPhotoPickerController.m

@@ -145,6 +145,14 @@ static CGFloat itemMargin = 5;
     return NO;
 }
 
+- (UIStatusBarStyle)preferredStatusBarStyle {
+    TZImagePickerController *tzImagePicker = (TZImagePickerController *)self.navigationController;
+    if (tzImagePicker && [tzImagePicker isKindOfClass:[TZImagePickerController class]]) {
+        return tzImagePicker.statusBarStyle;
+    }
+    return [super preferredStatusBarStyle];
+}
+
 - (void)configCollectionView {
     _layout = [[UICollectionViewFlowLayout alloc] init];
     _collectionView = [[TZCollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:_layout];

TZImagePickerController/TZImagePickerController/TZPhotoPreviewController.m

@@ -517,7 +517,7 @@
     _selectButton.selected = model.isSelected;
     [self refreshSelectButtonImageViewContentMode];
     if (_selectButton.isSelected && _tzImagePickerVc.showSelectedIndex && _tzImagePickerVc.showSelectBtn) {
-        NSString *index = [NSString stringWithFormat:@"%zd", [_tzImagePickerVc.selectedAssetIds indexOfObject:model.asset.localIdentifier] + 1];
+        NSString *index = [NSString stringWithFormat:@"%d", (int)([_tzImagePickerVc.selectedAssetIds indexOfObject:model.asset.localIdentifier] + 1)];
         _indexLabel.text = index;
         _indexLabel.hidden = NO;
     } else {

TZImagePickerController/TZImagePickerController/TZVideoPlayerController.m

@@ -127,6 +127,14 @@
     }
 }
 
+- (UIStatusBarStyle)preferredStatusBarStyle {
+    TZImagePickerController *tzImagePicker = (TZImagePickerController *)self.navigationController;
+    if (tzImagePicker && [tzImagePicker isKindOfClass:[TZImagePickerController class]]) {
+        return tzImagePicker.statusBarStyle;
+    }
+    return [super preferredStatusBarStyle];
+}
+
 #pragma mark - Layout
 
 - (void)viewDidLayoutSubviews {