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Anonymous users2024-02-09uiview's [convertrect: toview:] method.
cgrect rr = [cell ;
Meaning: convert the frame of the subview (jingdubtn) of the uitableviewcell into the view of the controller, where the controller view contains a uitableview, and uitableview has multiple rows of uitableviecell
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Anonymous users2024-02-07The frame in UIview gets the coordinates relative to the parentView where it is located, while bounds refers to the coordinates of UIview itself.
Assuming a is a screen):
The frame coordinates of view b refer to the coordinates relative to view a, i.e., (50,50), and the coordinates of its bounds are (0,0).
The frame coordinates of view c refer to the coordinates relative to view b, i.e., (50, 50).However, the bounds coordinate is still (0,0), but its absolute coordinate is (100,100).
You can use the following functions to complete the conversion of the coordinate system between different views, as shown in the following to complete the conversion of the current view to the parentview coordinates (a matrix transformation).
cgrect parentrect = [currentview ;
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Anonymous users2024-02-06uiview's [convertrect: toview:] method uses cgrect rr = [cell;
Meaning: convert the frame of the subview (jingdubtn) of the uitableviewcell into the view of the controller, where the controller view contains a uitableview, and uitableview has multiple rows of uitableviecell
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Anonymous users2024-02-05The position of the cell on the screen, the cell is created by itself, and the position is set by itself.
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Anonymous users2024-02-04The position of the cell is calculated first, and then converted to the position in the view.
cgrect rectintableview = [tableview rectforrowatindexpath:indexpath];
cgrect rectinsuperview = [tableview convertrect:rectintableview toview:[tableview superview]];
nslog(@"___",nsstringfromcgrect(rectinsuperview));
This is what I just tested for you, absolutely correct. [tableview superview] can also be written.
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1)1/6=1/(2x3)=1/2-1/31/12=1/(3x4)=1/3-1/4
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Just such a question!
I'm going to copy it! >>>More
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