iOS-自定义修改拍照界面retake和use按钮

-(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];
//左下角按钮

UIButton *useButton=[bottomBarImageForSave.subviews
objectAtIndex:1];
[useButton
setTitle:@"上传"
forState:UIControlStateNormal];
//右下角按钮
}
- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController
*)viewController animated:(BOOL)animated{

[self
addSomeElements:viewController];
}