以編程方式在iPhone中自動調整子視圖的大小

Question

我創建了一個UIViewController和一個帶有兩個UIButton的UIView。

self.view = [[UIView alloc]initWithFrame:CGRectMake( 0,0,320,480)];
self.view.autoresizesSubviews = YES;

self.view.backgroundColor = [UIColor redColor];
UIView *view;
view = [[UIVew alloc]initWithFrame:CGRectMake(0,0,320,480)];
view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
UIButton *button1;
button.frame = CGRectMake(100,130,120,50);
[button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
[view addSubview:button];
[controller addSubview:view];

// […]

- (void)buttonAction:(id)sender
{
    // I have created another view for a purpose
    [view removeFromSuperview];
    UIView *view_obj;
    view_obj.backgroundColor = [UIColor greenColor];
    view_obj.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleWidth;
    [self.view addSubview:view_obj];  
}

問題：當我將方向更改為橫向時，具有按鈕的視圖會被調整大小，但是當我單擊按鈕時，帶有blueColor的視圖會顯示而不會自動調整大小。 在這里我可以看到一半是redColor的根視圖，一半是greenColor的子視圖。我還覆蓋了ShouldAutoRotate方法並以編程方式完成了該項目。 請回復我。

Answer 1

在Interface Builder中，選擇視圖對象，然后在檢查器窗口的“ View Attributes”窗格中，確保已選擇狀態欄和“ Navigation Bar”的“ Top Bar”（假設您的應用程序具有導航欄）。 您將在“模擬用戶界面元素”部分的頂部附近看到這些內容。 這通知應用程序在確定UIViewController視圖的大小時始終為這些留出空間。

Answer 2

嘗試研究這個問題。

要么

請參見下面的代碼從這個問題 。

- (void)willAnimateSecondHalfOfRotationFromInterfaceOrientation: (UIInterfaceOrientation)fromInterfaceOrientation duration:(NSTimeInterval)duration {    
    UIInterfaceOrientation interfaceOrientation = self.interfaceOrientation;
    if (interfaceOrientation == UIInterfaceOrientationPortrait 
        || interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)
    {
        button1.frame = CGRectMake(100, 33, 226, 275);
        button2.frame = CGRectMake(440, 33, 226, 275);
        button3.frame = CGRectMake(100, 360, 226, 275);
        button4.frame = CGRectMake(440, 360, 226, 275);
        button5.frame = CGRectMake(100, 693, 226, 275);
        button6.frame = CGRectMake(440, 693, 226, 275);
    }
    else 
    {
        button1.frame = CGRectMake(100, 50, 226, 275);
        button2.frame = CGRectMake(400, 50, 226, 275);
        button3.frame = CGRectMake(700, 50, 226, 275);
        button4.frame = CGRectMake(100, 400, 226, 275);
        button5.frame = CGRectMake(400, 400, 226, 275);
        button6.frame = CGRectMake(700, 400, 226, 275);
    }
}
- (BOOL)shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation)interfaceOrientation {
    return (interfaceOrientation || UIInterfaceOrientationPortraitUpsideDown);
}