iOS-自訂修改拍照介面retake和use按鈕

-(UIView *)findView:(UIView *)aView withName:(NSString *)name{  

   
Class cl = [aView class];  

   
NSString *desc = [cl description];  

    

   
if ([name isEqualToString:desc])  

       
return aView;  

    

   
for (NSUInteger i =
0; i < [aView.subviews
count]; i++)  

    {  

       
UIView *subView = [aView.subviews
objectAtIndex:i];  

        subView = [self
findView:subView withName:name];  

       
if (subView)  

           
return subView;  

    }  

   
return nil;  

} 

-(void)addSomeElements:(UIViewController *)viewController{

    

   
UIView *PLCameraView=[self
findView:viewController.view
withName:@"PLCameraView"];

   
UIView *bottomBar=[self
findView:PLCameraView withName:@"PLCropOverlayBottomBar"];

   
UIImageView *bottomBarImageForSave = [bottomBar.subviews
objectAtIndex:0];

   
UIButton *retakeButton=[bottomBarImageForSave.subviews
objectAtIndex:0];  

    [retakeButton
setTitle:@"重拍"
forState:UIControlStateNormal]; 
//左下角按鈕

   
UIButton *useButton=[bottomBarImageForSave.subviews
objectAtIndex:1];  

    [useButton
setTitle:@"上傳"
forState:UIControlStateNormal]; 
//右下角按鈕

}

- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController
*)viewController animated:(BOOL)animated{

  

    [self
addSomeElements:viewController];

}