IOS开发之UIView总结1

太长了，请看 http://blog.csdn.net/xdrt81y/article/details/9128695

1. performSelector:
2. performSelector:withObject:
3. performSelector:withObject:withObject:

实际调用

1. [self performSelector:@selector(displayViews) withObject:nil afterDelay:1.0f];

有三个方法分别是

1. //父视图
2. [self.view superview]
3. //所有子视图
4. [self.view subviews]
5. //自身的window
6. self.view.window

循环一个视图下面所有视图的方法

1. NSArray *allSubviews(UIView *aView)
2. {
3. NSArray *results = [aView subviews];
4. for (UIView *eachView in [aView subviews])
5. {
6. NSArray *riz = allSubviews(eachView);
7. if (riz) {
8. results = [results arrayByAddingObjectsFromArray:riz];
9. }
10. }
11. return results;
12. }

循环返回一个APPLICATION里面所有的VIEW

1. // Return all views throughout the application
2. NSArray *allApplicationViews()
3. {
4. NSArray *results = [[UIApplication sharedApplication] windows];
5. for (UIWindow *window in [[UIApplication sharedApplication] windows])
6. {
7. NSArray *riz = allSubviews(window);
8. if (riz) results = [results arrayByAddingObjectsFromArray: riz];
9. }
10. return results;
11. }

找出所有的父视图

1. // Return an array of parent views from the window down to the view
2. NSArray *pathToView(UIView *aView)
3. {
4. NSMutableArray *array = [NSMutableArray arrayWithObject:aView];
5. UIView *view = aView;
6. UIWindow *window = aView.window;
7. while (view != window)
8. {
9. view = [view superview];
10. [array insertObject:view atIndex:0];
11. }
12. return array;
13. }