如何釋放帶有參數的UIButton的父UIView？

Question

我想知道是否有一種釋放UIView的方法，該方法通過subViews UIButton在特定功能之外不存在。 由於無法通過IBAction的按鈕提供指向UIView的指針的參數，因此我陷入了困境。

- (IBAction)statsTemp1:(id)sender{


CGRect newSize = CGRectMake(0,13,322,434);
 UIView *overl = [[UIView alloc] initWithFrame:newSize];
 [self.view addSubview:overl];
 [overl setBackgroundColor:[UIColor grayColor]];
 [overl setAlpha:0.85];
 [self doTheGraphIn:overl];
 CGRect btnFrame = CGRectMake(150, 400, 30, 30);
 UIButton *closeStatButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
 closeStatButton.frame = btnFrame;
 [overl addSubview:closeStatButton];
 [closeStatButton addTarget:self action:@selector(closeStat:) forControlEvents:UIControlEventTouchUpInside];}-(IBAction)closeStat:(id)sender{
 [self release];
    }
    -(IBAction)closeStat:(id)sender{
 [overl release];
    }

只是為了方便：我想用按鈕釋放（UIView *）覆蓋，並且不能事先創建。

感謝您的幫助，我非常感激:)

Answer 1

聽起來您想從self.view中刪除over1。 （這意味着釋放）

嘗試一下...（從內存中，請檢查）

- (IBAction)statsTemp1:(id)sender{

// Create UIView
     CGRect newSize = CGRectMake(0,13,322,434);
     UIView *overl = [[UIView alloc] initWithFrame:newSize];
     [overl setBackgroundColor:[UIColor grayColor]];
     [overl setAlpha:0.85];
     [over1 setTag:99];

// Add UIButton to overl
       CGRect btnFrame = CGRectMake(150, 400, 30, 30);
       UIButton *closeStatButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
       closeStatButton.frame = btnFrame;
       [overl addSubview:closeStatButton];
       [closeStatButton addTarget:self action:@selector(closeStat:)   forControlEvents:UIControlEventTouchUpInside];

// Add overl to view
     [self.view addSubview:overl];

// over1 can now be released because self.view has a pointer to it
       [overl release];

// Do God knows what
     [self doTheGraphIn:overl];

 }

// Remove overl from self.view
-(IBAction)closeStat:(id)sender {
     UIView *overl = [self.view viewForTag:99];
     [over1 removeFromSuperView];
  }

// The UIButton is autorelease, so you should be good.