Question

我必须绘制一个带有部分的菜单，该部分必须支持仅在iPad上旋转。

当我第一次在设备上启动应用程序时，即使设备处于纵向或横向模式，一切都很好。

旋转后，我收到包含单元格的视图的错误大小。

 -(void)buildMenu:(UIInterfaceOrientation)interfaceOrientationValue{
        CGFloat padding    = 1;
        CGFloat widthCell  = 0;
        CGFloat heightCell = 0;

        int rowNo = 0;
        int columnsNo = 0;
        int goToNextRow = 0; // used when we draw the menu - start drawing cell to the next row in menu

        if((interfaceOrientationValue == UIDeviceOrientationLandscapeRight) || (interfaceOrientationValue == UIDeviceOrientationLandscapeLeft)){//iPad Landscape - FH only for iPad support rotation

            rowNo = kLandscapeColumns;  //  2
            columnsNo = kLandscapeRows; //  3

            widthCell  = (self.viewMenuArea.frame.size.width/columnsNo-rowNo*padding);
            heightCell = (self.viewMenuArea.frame.size.height/rowNo-padding);

            goToNextRow = columnsNo; // go to the next line/row when we were draq the cell 4.

        }else{//iPad || iPhone - Portrait
            rowNo = kPortraitRows; //2
            columnsNo = kPortraitColumns; //3

            widthCell  = (self.viewMenuArea.frame.size.width/rowNo-padding);
            heightCell = (self.viewMenuArea.frame.size.height/columnsNo-padding);

            goToNextRow = rowNo; // go to the next line/row when we were draq the cell 3.
        }

        //Draw Menu Cells
        CGFloat x = 0;
        CGFloat y = 0;
        int itemsCount  = 1;

        for(int i=0; i<self.dataSource.count; i++){
             [FHMenuCell buildMenuCell_initWithTitle:[self.dataSource objectAtIndex:i] isDisabled:NO xOrigin:x yOrigin:y width:widthCell height:heightCell pendingItems:0 owner:self container:self.viewMenuArea delegate:self tag:i];

            if (itemsCount % goToNextRow == 0){
                y += heightCell + padding;
                x = 0;
            }else{
                x += widthCell+padding;
            }

            itemsCount++;
        }
    }

我在viewwillappear中以及用户在didRotateFromInterfaceOrientation中旋转设备后调用此方法。

我在xib中添加了带有self.viewMenuArea的printscreen。 enter image description here

关于视图的正确框架的任何建议，其中包含单元格（self.viewMenuArea）？

Answer 1

您可能已经将这些枚举混合为UIDeviceOrientation和UIInterfaceOrientation。首先，尝试改变

    if((interfaceOrientationValue == UIDeviceOrientationLandscapeRight) || (interfaceOrientationValue == UIDeviceOrientationLandscapeLeft)){

到

    if(UIInterfaceOrientationIsLandscape(interfaceOrientationValue)) {

您还应该注意XIB /故事板中设置的自动调整遮罩/自动布局约束，它可能会影响viewMenuArea的框架。只是为了确保那些不会影响你的viewMenuArea，在XIB / storyboard中从该视图中删除所有这些，然后再试一次。视图的框架不应该改变。

除此之外，将视图与viewController分开并在其`layoutSubviews＆＃39;中实现所有布局内容是一个很好的做法。方法

旋转后宽度和高度不正确

1 个答案: