Common methods of UIView

Common methods of UIView

• Add a view as a child view and make it appear on top
  -(void)addSubView:(UIView *)view;
• Move the specified child view to top
  -(void)bringSubViewToFront:(UIView *)view;
• Place the specified view at the bottom
  -(void)sendSubViewToBack:(UIView *)view;
• Adds the specified view to the index position of the subviews array
  -(void)insertSubview:(UIView *)view atIndex:(NSInteger)index;
• Adds the specified view below the specified sub-view
  -(void)insertSubview:(UIView *)view belowSubview:(UIView *)siblingSubview;
• Adds the specified view above the specified child view
  -(void)insertSubview:(UIView *)view aboveSubview:(UIView *)siblingSubview;
• Swaps a child view of two locations in an subviews array
  -(void)exchangeSubviewAtIndex:(NSInteger)index1 withSubviewAtIndex:(NSInteger)index2;
• Remove from parent view
  -(void)removeFromSuperview;
• Gets the corresponding descendant control according to the tag value
  -(UIView *)viewWithTag:(NSInteger)tag;
• Converts the midpoint of a view from its own coordinate system to the specified view coordinate system
  -(CGPoint)convertPoint:(CGPoint)point toView:(UIView *)view;
• Converts a point within the coordinate system in the specified view into its own coordinate system
  -(CGPoint)convertPoint:(CGPoint)point fromView:(UIView *)view;
• Converts a rectangular area in a view from its own coordinate system to a specified view coordinate system
  -(CGRect)convertRect:(CGRect)rect toView:(UIView *)view;
• Converts a rectangular region within a coordinate system in a specified view into its own coordinate system
  -(CGRect)convertRect:(CGRect)rect fromView:(UIView *)view;
• Refresh view, call DrawRect after calling automatically: (cgrect) rect
  -(void)setNeedsDisplay;

• Inherit from Uiresponder methods for responding to touch events

1.- (void) Touchesbegan: (Nsset<Uitouch*> *) touches withevent: (nullableuievent*) event;
2.- (void) Touchesmoved: (Nsset<Uitouch*> *) touches withevent: (nullableuievent*) event;
3.- (void) Touchesended: (Nsset<Uitouch*> *) touches withevent: (nullableuievent*) event;
4.- (void) Touchescancelled: (NullableNsset<Uitouch*> *) touches withevent: (nullableuievent*) event;

The above method requires a custom view rewrite, and if you need to override the method for touch point to judgment (use), first get the touch point in the method body:

1.UITouch *touch = [touches anyObject];
2.CGPoint point = [touch locationInView:self];

• Animation

1.//First you need to set the animation header to tell the compiler that the animation
2.[UIViewBeginanimations:NilContextNil];
3.//Set the animation to perform the configuration, animation
4.[UIViewSetanimationduration:0.5];
5.[UIViewSetanimationrepeatcount:2];
6.[UIViewSetanimationdelay:3.0];
7.//Balabala animations to be performed
8.................
9.//Last commit animation
.[UIViewCommitanimations];

• Animating with block
  
  • Method One
    +(void)animateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations;
  • Method Two
    +(void)animateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations completion:(void (^ __nullable)(BOOL finished))completion
  • Method Three
    + (void)animateWithDuration:(NSTimeInterval)duration delay:(NSTimeInterval)delay options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^ __nullable)(BOOL finished))completion

Common methods of UIView