自定义UIImagePickerController的拍照页面（二）
以前，写过一篇：自定义UIImagePickerController的拍照页面，这篇文章的实现方式与此不同，在开始之前，先来看一下下面这张图：
上图对接下来的代码理解会很有帮助，红色的高亮部分是从屏幕上看到的照片的预览图，除了这个之外，他上面的view都可以去掉。
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要想编辑这些View，需要先找到他们，这里给出了这个方法：
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- (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;}?
下面的这段代码给出了比较详细的使用示例：
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- (void)addSomeElements:(UIViewController *)viewController {//Add the motion view here, PLCameraView and picker.view are both OKUIView *PLCameraView=[self findView:viewController.view withName:@"PLCameraView"];[PLCameraView addSubview:touchView];//[viewController.view addSubview:self.touchView];//You can also try this one.//Add button for Timer capture[PLCameraView addSubview:timerButton];[PLCameraView addSubview:continuousButton];[PLCameraView insertSubview:bottomBarImageView atIndex:1];//Used to hide the transiton, last added view will be the topest layer[PLCameraView addSubview:myTransitionView];//Add label to cropOverlayUIView *cropOverlay=[self findView:PLCameraView withName:@"PLCropOverlay"];[cropOverlay addSubview:lblWatermark];//Get Bottom BarUIView *bottomBar=[self findView:PLCameraView withName:@"PLCropOverlayBottomBar"];//Get ImageView For SaveUIImageView *bottomBarImageForSave = [bottomBar.subviews objectAtIndex:0];//Get Button 0UIButton *retakeButton=[bottomBarImageForSave.subviews objectAtIndex:0];[retakeButton setTitle:@"重拍" forState:UIControlStateNormal];//Get Button 1UIButton *useButton=[bottomBarImageForSave.subviews objectAtIndex:1];[useButton setTitle:@"保存" forState:UIControlStateNormal];//Get ImageView For CameraUIImageView *bottomBarImageForCamera = [bottomBar.subviews objectAtIndex:1];//Set Bottom Bar ImageUIImage *image=[[UIImage alloc] initWithContentsOfFile:[[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent:@"BottomBar.png"]];bottomBarImageForCamera.image=image;[image release];//Get Button 0(The Capture Button)UIButton *cameraButton=[bottomBarImageForCamera.subviews objectAtIndex:0];[cameraButton addTarget:self action:@selector(hideTouchView) forControlEvents:UIControlEventTouchUpInside];//Get Button 1UIButton *cancelButton=[bottomBarImageForCamera.subviews objectAtIndex:1];[cancelButton setTitle:@"取消" forState:UIControlStateNormal];[cancelButton addTarget:self action:@selector(hideTouchView) forControlEvents:UIControlEventTouchUpInside];}?
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