Common uibutton usage

// Uibutton is a control used in IOS to respond to user clicks. It can display text, images, and user interaction.

// Create uibutton, which is generally created using the class method and does not need to be released

// Uibutton is also a subclass of uicontrol

// 1. Create uibutton (class method is generally used)

// 2. Configure uibutton

// 3. Add it to the parent View

// Create uibutton

Uibutton * mybutton = [uibutton buttonwithtype: uibuttontypesystem];

// Configure uibutton

// Mybutton. Frame = [cgrectmake (100,200, 50, 50)];

[Mybutton setframe: cgrectmake (100,200, 80, 60)];

// Set the text to be displayed for uibutton

[Mybutton settitle: @ "login" forstate: uicontrolstatenormal];

// Set the text size

Mybutton. titlelabel. font = [uifont systemfontofsize: 20];

// Specifies the uibutton background color.

// Mybutton. backgroundcolor = [uicolor orangecolor];

// Add a click event to uibutton

[Mybutton addtarget: Self action: @ selector (mybuttonaction) forcontrolevents: uicontroleventtouchupinside];

// Add an image to the button

[Mybutton setbackgroundimage: [uiimage imagenamed: @ "1.jpg"] forstate: uicontrolstatenormal];

[Mybutton setbackgroundimage: [uiimage imagenamed: @ "2.jpg"] forstate: uicontrolstatehighlighted];

// Add an image to the button, center it, instead of using Al

Mybutton. contentmode = uiviewcontentmodecenter;

 

// Add to parent View

[Contentview addsubview: mybutton];

Common uibutton usage