計算已從多個UIViews中隨機點擊的UIViews的數量，即：從9個UIViews中點擊隨機5個UIViews，然後執行操作

Question

我是Objective C新手，已經查找了幾天但找不到答案。我在容器視圖中有9個圖像視圖，並且每個視圖都只能被點擊一次，我想在隨機5個UIImageView被點擊後執行一些操作。以下是我用於每個人體驗一次點擊的代碼。如果必須更改我的代碼，請提供任何幫助。

UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(moveToNextMovingRectangle:)]; 

    tapGestureRecognizer.numberOfTouchesRequired = 1; 
    tapGestureRecognizer.numberOfTapsRequired = 1; 

    [self.imageView1 addGestureRecognizer:tapGestureRecognizer]; 
    [self.imageView2 addGestureRecognizer:tapGestureRecognizer]; 
    [self.imageView3 addGestureRecognizer:tapGestureRecognizer]; 
    [self.imageView4 addGestureRecognizer:tapGestureRecognizer]; 
    [self.imageView5 addGestureRecognizer:tapGestureRecognizer]; 
    [self.imageView6 addGestureRecognizer:tapGestureRecognizer]; 
    [self.imageView7 addGestureRecognizer:tapGestureRecognizer]; 
    [self.imageView8 addGestureRecognizer:tapGestureRecognizer]; 
    [self.imageView9 addGestureRecognizer:tapGestureRecognizer]; 

// if (5 random imageShapes have been tapped){ 
//   
//  do something 
// } 

Answer 1

創建一個新的計數器變量和增加，而在圖像用戶水龍頭每一次它的價值，當它達到5，你可以做任何你want.Like這樣：

首先聲明globel計數器變量在ViewController類如：

var counter : Int = Int() 


UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(moveToNextMovingRectangle:)]; 

tapGestureRecognizer.numberOfTouchesRequired = 1; 
tapGestureRecognizer.numberOfTapsRequired = 1; 

[self.imageView1 addGestureRecognizer:tapGestureRecognizer]; 
[self.imageView2 addGestureRecognizer:tapGestureRecognizer]; 
[self.imageView3 addGestureRecognizer:tapGestureRecognizer]; 
[self.imageView4 addGestureRecognizer:tapGestureRecognizer]; 
[self.imageView5 addGestureRecognizer:tapGestureRecognizer]; 
[self.imageView6 addGestureRecognizer:tapGestureRecognizer]; 
[self.imageView7 addGestureRecognizer:tapGestureRecognizer]; 
[self.imageView8 addGestureRecognizer:tapGestureRecognizer]; 
[self.imageView9 addGestureRecognizer:tapGestureRecognizer]; 
self.moveToNextMovingRectangle() 

} 


    func moveToNextMovingRectangle(){ 

// Increment in counter value 
    counter += 1; 
    if (counter>=5) 
    { 
     //do what ever you want 
    } 
    else { 
     //get a random number using arc4random() method and show your next imageview 
    } 
} 

我認爲這將工作嘗試它。

Answer 2

想，如果我們有救了我們在NSArray中和反imagesviews跟蹤水龍頭

NSArray *imgViews = @[self.imageView1,self.imageView2.....,self.imageView9]; 
int counter; 

後，在你選擇做這個

-(void) moveToNextMovingRectangle{ 
counter +- 1; 
    if (counter>=5) 
    { 
     //do what ever you want 
    } 
    else { 
     //get a random number using arc4random() method and show your next imageview 
    } 
}