如何修复 SafeAreaLayoutGuide答案

【问题标题】：How to fix SafeAreaLayoutGuide如何修复 SafeAreaLayoutGuide
【发布时间】：2019-03-12 07:10:06
【问题描述】：

我正在用画布制作游戏。游戏因为一流而被剪辑，我试过SafeAreaLayoutGuide，但什么也没发生。请看下面的代码，让我知道我做错了什么。

-(void) createGLView {
    //create our openglview and size it correctly
    OpenGLView *glView = [[OpenGLView alloc] initWithFrame:self.appDelegate.initFrame];

    self.view = glView;
    self.appDelegate.canvas = glView;

    core_init_gl(1);

    glView.backgroundColor = [UIColor redColor];
    glView.translatesAutoresizingMaskIntoConstraints = NO;

    [glView.leadingAnchor constraintEqualToAnchor:glView.safeAreaLayoutGuide.leadingAnchor].active = YES;
    [glView.trailingAnchor constraintEqualToAnchor:glView.safeAreaLayoutGuide.trailingAnchor].active = YES;
    [glView.topAnchor constraintEqualToAnchor:glView.safeAreaLayoutGuide.topAnchor].active = YES;
    [glView.bottomAnchor constraintEqualToAnchor:glView.safeAreaLayoutGuide.bottomAnchor].active = YES;

    int w = self.appDelegate.screenWidthPixels;
    int h = self.appDelegate.screenHeightPixels;
    tealeaf_canvas_resize(w, h);

    NSLOG(@"{tealeaf} Created GLView (%d, %d)", w, h);
}

红色进入顶级。我是说全屏。如何解决？

【问题讨论】：

如果我理解正确，您需要将 glView 捏到其超级视图的安全区域。像这样 [glView.leadingAnchor constraintEqualToAnchor:self.safeAreaLayoutGuide.leadingAnchor].active = YES;

标签： ios objective-c xcode safearealayoutguide

【解决方案1】：

您需要有一个全屏父视图。然后您可以将OpenGLView 添加为子视图并将其约束连接到父视图的safeAreaLayoutGuide。

- (void)createGLView {

    OpenGLView *glView = [[OpenGLView alloc] initWithFrame:self.appDelegate.initFrame];
    [self.view addSubview:glView];

    self.appDelegate.canvas = glView;

    core_init_gl(1);

    glView.backgroundColor = [UIColor redColor];
    glView.translatesAutoresizingMaskIntoConstraints = NO;

    [glView.leadingAnchor constraintEqualToAnchor:self.view.safeAreaLayoutGuide.leadingAnchor].active = YES;
    [glView.trailingAnchor constraintEqualToAnchor:self.view.safeAreaLayoutGuide.trailingAnchor].active = YES;
    [glView.topAnchor constraintEqualToAnchor:self.view.safeAreaLayoutGuide.topAnchor].active = YES;
    [glView.bottomAnchor constraintEqualToAnchor:self.view.safeAreaLayoutGuide.bottomAnchor].active = YES;

    int w = self.appDelegate.screenWidthPixels;
    int h = self.appDelegate.screenHeightPixels;
    tealeaf_canvas_resize(w, h);

    NSLOG(@"{tealeaf} Created GLView (%d, %d)", w, h);
}

【讨论】：