(Ios Development Study Notes) custom UIScrollView

Effect:

Brief description of implementation process:

1. Create a data item control, 2. Create a custom scroll view control, 3. Create a form to load a scroll view control.

 

Specific implementation:

1. Create a data item Control

Inherit UIView

View section:

 

Control implementation:

Note: You must load the nib file in init. Otherwise, the interface cannot be loaded correctly.

2. Custom UIScrollView Control

Implement the layoutSubViews method in the custom control:

Note: This method is called after the control captures touch events. If you load the Control repeatedly, it will cause memory overflow. If the child control in the control does not change, you do not need to reload it.

Set the content size of ScrollView

 

3. Form-loaded scroll Control