UIPicker & iOS 8

Question

我在代码中创建了一个UIPickerView，只有当项目所在的视图iOS 8显示在顶部时。我怎么把它弄下来？这是使用的代码：

                show actionsheet
                pickerActionSheet = [self actionSheetSimulationWithPickerView:picker withToolbar:pickerViewToolbar];

                // set frames on different orientation
                if (UIDeviceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation)) {
                    picker.frame = CGRectMake(0, 32, SCREEN_HEIGHT, 162);
                    pickerViewToolbar.frame = CGRectMake(0, 0, SCREEN_HEIGHT, 32);
                    [pickerActionSheet setBounds:CGRectMake(0, 0, SCREEN_HEIGHT, 366)];
                }
                else{
                    picker.frame = CGRectMake(0, 44, SCREEN_WIDTH, 216);
                    pickerViewToolbar.frame = CGRectMake(0, 0, SCREEN_WIDTH, 44);
                    [pickerActionSheet setBounds:CGRectMake(0, 0, SCREEN_WIDTH, 496)];
                }

Answer 1

if (UIDeviceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation)) {
    [pickerActionSheet setBounds:CGRectMake(0, SCREEN_WIDTH-194, SCREEN_HEIGHT, 194)];
    pickerViewToolbar.frame = CGRectMake(0, 0, SCREEN_HEIGHT, 32);
    picker.frame = CGRectMake(0, 32, SCREEN_HEIGHT, 162);

} else {
   [pickerActionSheet setBounds:CGRectMake(0, SCREEN_HEIGHT-216, SCREEN_WIDTH, 260)];
   pickerViewToolbar.frame = CGRectMake(0, 0, SCREEN_WIDTH, 44);
   picker.frame = CGRectMake(0, 44, SCREEN_WIDTH, 216);
}

// CGRectMake(start point x, start point y, width, height)

在启动iPhone 5(较高的屏幕)之后，当您需要从底部开始时，您需要执行SCREEN_HEIGHT-objectHeight。如果你想让它从顶部开始，你就从0开始。

现在，iPhone 6和6+ (更宽的屏幕)在这里，您必须使用左侧和右侧，左侧从0开始，右边从SCREEN_WIDTH-objectWidth开始。

因此，从现在开始，没有人将使用宽度只有320。如果您想要整个屏幕宽度，我们都需要使用SCREEN_WIDTH。

Answer 2

我修改了代码如下，现在一切都正确地显示在底部(在iPhone 4和5上)。但是在iPhone和6Plus上显示的要低得多，我不能动摇选择器。怎么会这样呢？

                // set frames on different orientation
                if (UIDeviceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation)) {
                    picker.frame = CGRectMake(0, SCREEN_WIDTH-162, SCREEN_HEIGHT, 162);
                    pickerViewToolbar.frame = CGRectMake(0, 0, SCREEN_HEIGHT, 32);
                    [pickerActionSheet setBounds:CGRectMake(0, 0, SCREEN_HEIGHT, 366)];
                }
                else{
                    picker.frame = CGRectMake(0, SCREEN_HEIGHT-216, SCREEN_WIDTH, 216);
                    pickerViewToolbar.frame = CGRectMake(0, SCREEN_HEIGHT-260, SCREEN_WIDTH, 44);
                    [pickerActionSheet setBounds:CGRectMake(0, 0, SCREEN_WIDTH, 496)];
                }

Answer 3

固定在

                    if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
                        CGSize result = [[UIScreen mainScreen] bounds].size;
                        if(result.height == 667) {
                            [pickerActionSheet setBounds:CGRectMake(0, 0, SCREEN_WIDTH, 667)];
                        }
                        if(result.height == 736) {
                            [pickerActionSheet setBounds:CGRectMake(0, 0, SCREEN_WIDTH, 736)];
                        }
                        if(result.height < 667) {
                            [pickerActionSheet setBounds:CGRectMake(0, 0, SCREEN_WIDTH, 496)];
                        }
                    }