將自定義UIButton添加到subView

Question

我有一個子視圖，它是通過在主視圖中觸摸UIbutton來啟動的。 子視圖彈出后，將顯示帶有我提供的信息的標簽。 所有這一切。 我只需要顯示一個UIbutton，因此我可以將其設置為關閉子視圖並返回主視圖。 我到處搜索，沒有發現任何幫助。

這是我的.m文件中的代碼如下所示：

////Button that Displays Subview with Its Label and Button
- (IBAction)showInfo:(id)sender
/////UI Subview

{UIView *mySubview = [[UIView alloc] initWithFrame:CGRectMake(0, 0,320, 480)];

[self.view addSubview:mySubview];
mySubview.backgroundColor = [UIColor blackColor];
mySubview.alpha = .7f;

//////Label in SubView

{UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 300, 50)];
label.text = @"Here is info";
label.textColor = [UIColor whiteColor];
label.backgroundColor= [UIColor clearColor];

[self.view addSubview:label];


////Button in Subview

//create the button
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setImage:[UIImage imageNamed:@"button-info-x.png"]     forState:UIControlStateNormal];

//set the position of the button
button.frame = CGRectMake(120, 252, 68, 68);


//add the button to the view
[self.view addSubview:button];

現在，我只需要向UIButton添加一個操作來關閉Subview？

Answer 1

首先獲取subView的IBOutlet並將其添加到主視圖中。

 IBOutlet UIView *subView;

然后，像這樣將UIButton添加到SubView中：

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];

//set the position of the button
button.frame = CGRectMake(0, 0, 100, 30);

//set the button's title
[button setTitle:@"Click Me!" forState:UIControlStateNormal];

[btnMenu addTarget:self action:@selector(your MethodName:) forControlEvents:UIControlEventTouchUpInside];

//add the button to the view
[subView addSubview:button];

然后，

-(IBAction)your MethodName:(id)sender {


}

在上述方法中，從主視圖中刪除SubView。

Answer 2

將目標添加到自定義按鈕

{

.....

    [button addTarget:self action:@selector(your dismiss:) forControlEvents:UIControlEventTouchUpInside];

.......

}
-(IBAction)your dismiss:(id)sender 
{

   // write the dismissal code here

}

Answer 3

如果只想為UIButton設置圖像而不是標題，則需要使用- (void)setImage:(UIImage *)image forState:(UIControlState)state方法。

您應該檢查UIButton參考以獲取更多信息。