APP rating (star like) is very simple, app stars

APP rating (star like) is very simple, app stars

1. Use code or storyboard to create five buttons (usually five stars)

I use storyboard.

Remember to set the tag value of the button.

In. h

@ Property (weak, nonatomic) IBOutlet UIButton * btn5;

 

-(IBAction) btn :( id) sender;

@ Property (weak, nonatomic) IBOutlet UIButton * btn4;

@ Property (weak, nonatomic) IBOutlet UIButton * btn3;

@ Property (weak, nonatomic) IBOutlet UIButton * btn2;

@ Property (weak, nonatomic) IBOutlet UIButton * btn1;

Then in. m

@ Interface ViewController ()

{

NSArray * starArray;

}

@ End

 

@ Implementation ViewController

 

-(Void) viewDidLoad {

[Super viewDidLoad];

StarArray = [NSArray arrayWithObjects: _ btn1, _ btn2, _ btn3, _ btn4, _ btn5, nil];

}

 

-(Void) didReceiveMemoryWarning {

[Super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

 

-(IBAction) btn :( id) sender

{

UIButton * allBtn = sender;

For (UIButton * button in starArray)

{

If (button. tag <= allBtn. tag)

{

[Button setBackgroundImage: [UIImage imageNamed: @ "goldstar1"] forState: UIControlStateNormal];

// Goldstar1 and greystar2 image names

}

Else

{

[Button setBackgroundImage: [UIImage imageNamed: @ "greystar2"] forState: UIControlStateNormal];

}

}

 

 

}

So OK.

The effect is as follows: