iOS Development Xcode Learning 003:uibutton Basics

The learning source of this article is: http://study.163.com/course/introduction/1002858003.htm

This project file implements the function:

1. Basic concept of UIButton control

2. How to create UIButton

3, the type of UIButton

4, can display the picture UIButton

The prepared picture can be dragged directly to the project name UIButton

===========================VIEWCONTROLLER.M Script ==============================

Create a normal button function

-(void) Createuirectbutton

{

Create a Btn object that creates a btn based on the type

Round Corner Type

To create a buttonwithtype by using a class method: Class name + method name

uibutton* btn = [UIButton buttonwithtype:uibuttontyperoundedrect];//own memory management

//Set the location of button buttons

Btn.frame = CGRectMake (100, 100, 100, 40);

Set the text content of a button

@parameter

P1: String type, text to display on the button

P2: Sets the status type of text display: UIControlStateNormal, normal state

[btn settitle:@ button] "Forstate:uicontrolstatenormal";

P1: Text to display

P2: Display the status of text: uicontrolstatehighlighted, press State

[btn settitle:@] Button Press "forstate:uicontrolstatehighlighted";

Gray background Color

Btn.backgroundcolor = [Uicolor Graycolor];

//Set the color of text display

//P1: Color

P2: Status

[btn Settitlecolor:[uicolor Redcolor] forstate:uicontrolstatenormal];

[btn Settitlecolor:[uicolor Orangecolor] forstate:uicontrolstatehighlighted];

//Set the style color of the button

[Btn Settintcolor:[uicolor Whitecolor];

//titlelabel:uilabel Controls

Btn.titleLabel.font = [Uifont systemfontofsize:24];

//Add to view and display

[Self.view ADDSUBVIEW:BTN];

}

-(void) createimagebtn

{

//Create a custom type of BTN

uibutton* btnimage = [UIButton buttonwithtype:uibuttontypecustom];

Btnimage.frame = CGRectMake (100, 200, 100, 100);

uiimage* Icon01 = [UIImage imagenamed:@ "btn01.jpg"];

uiimage* icon02 = [UIImage imagenamed:@ "btn02.jpg"];

//Set button picture

//P1: The picture object that is displayed

P2: The state of the control

[Btnimage Setimage:icon01 Forstate:uicontrolstatenormal];

[Btnimage setimage:icon02 forstate:uicontrolstatehighlighted];

[Self.view Addsubview:btnimage];

}

-(void) Viewdidload {

[Super Viewdidload];

Additional setup after loading the view, typically from a nib.

[Self Createuirectbutton];

[Self createimagebtn];

}

Learning Summary:

• Focus: Attribute usage of UIButton
• Difficulty: UIButton Display pictures

Source Link Address: Https://pan.baidu.com/s/1yrOLXZZeu9MiOWtMq5-EGA Password: 7t1l

iOS Development Xcode Learning 003:uibutton Basics