Strange objective-C switch Problems

Today, when implementing a function, I encountered an extremely strange problem:

The detailed description is as follows:

A series of buttons are defined in a view, and tags are set for them. Then, all buttons are associated with the same click event, which is handled according to the button ID, the event implementation is as follows:

-(Ibaction) sendkeyhandler :( ID) sender

{

Uibutton * button = (uibutton *) sender;

Switch (button. Tag)

{

Case 20:

[Self sendkeydata: key_home];

Break;

Case 21:

 

[Sendkeyandmousedata
Sendkeydata: keyboard_menu];

Break;

Case 22:

[Sendkeyandmousedata
Sendkeydata: key_back];

Break;

Case 23:

[Sendkeyandmousedata
Sendkeydata: key_back];

Break;

Case 24:

[Self
Sendkeydata: key_dpad_up];

Break;

Case 25:

[Self
Sendkeydata: key_dpad_right];

Break;

Case 26:

[Self
Sendkeydata: key_dpad_down];

Break;

Case 27:

[Self
Sendkeydata: key_dpad_left];

Break;

Case 28:

[Self
Sendkeydata: enter];

Break;

Default:

Break;

}

}

Next, something strange happened. Every time you click a button, it always runs in the selection of its corresponding tag. If you encounter a method when you execute the first statement, it will jump to the first place where this method appears.

Thank you for your understanding of this situation.