如何在4個不同的圖像視圖上設置兩個圖像？

Question

我有2個圖像，我有4個iamges視圖，我想隨機在2-2圖像視圖上設置這2個圖像。

就像卡game.In用戶選擇1張卡，然後用戶有打開同一個圖像3個選項，如果圖像是相同的，然後用戶接一個地點擊贏得比賽。請幫助我...

int r =arc4random()%4; 
int z=arc4random()%4; 
UIImageView *imageView = (UIImageView *)[self.view viewWithTag:r]; 
imageView.image=[UIImage imageNamed:@"30-by-30-home"]; 

if(r!=z) 
{ 
    UIImageView *imageView = (UIImageView *)[self.view viewWithTag:z]; 
    imageView.image=[UIImage imageNamed:@"30-by-30-home"]; 

}else{ 

    if(r==3) 
    { 
     UIImageView *imageView = (UIImageView *)[self.view viewWithTag:z-2]; 
     imageView.image=[UIImage imageNamed:@"30-by-30-home"]; 
    } 
    if(r==0) 
    { 
     UIImageView *imageView = (UIImageView *)[self.view viewWithTag:z+2]; 
     imageView.image=[UIImage imageNamed:@"30-by-30-home"]; 


    }if(r==1) 
    { 
     UIImageView *imageView = (UIImageView *)[self.view viewWithTag:z+2]; 
     imageView.image=[UIImage imageNamed:@"30-by-30-home"]; 
    } 
    if(r==2) 
    { 
     UIImageView *imageView = (UIImageView *)[self.view viewWithTag:z-2]; 
     imageView.image=[UIImage imageNamed:@"30-by-30-home"]; 
    } 

} 

Answer 1

arc4random（）是生成隨機數的函數的名稱。

使用它像arc4random（）％3，以生成隨機數。根據隨機數選擇圖像。

您應該生成兩個不同的隨機數。

int r =arc4random()%4; 
int z=arc4random()%4; 

while (r==z) 
{ 
     z = arc4random()%4; 
     if(r != z) 
     break; 
} 

UIImageView *imageView = (UIImageView *)[self.view viewWithTag:r]; 
imageView.image=[UIImage imageNamed:@"30-by-30-home"]; 

UIImageView *imageView = (UIImageView *)[self.view viewWithTag:z]; 
imageView.image=[UIImage imageNamed:@"30-by-30-home"]; 

Answer 2

對於您使用[self.view viewWithTag:z-2]都r==3 & r==2。

而且對於這兩個r==0 & r==1您使用[self.view viewWithTag:z+2]。

可能是它的原因嗎？