uitableview - 如何更改 View 中每个 UIButton 的框架

Question

当设备的方向更新时，我正在尝试为分配的 UIButton 更新每一帧。现在我有一个 for 循环，它应该检查 View 中的每个 UIButton 并更新 UIButton 的框架。但是 for 循环不起作用，谁能告诉我为什么？

提前致谢!

for(UIView* view in theTable.subviews) {
    if([view isMemberOfClass:[UIButton class]]) {
        NSLog(@"UIButton found");
        view.frame = CGRectMake(430, 10, 23, 24);
    }
}

Answer 1

尝试在更改框架后调用 [view setNeedsDisplay];。来自文档:

You can use this method or the setNeedsDisplayInRect: to notify the system that your view’s contents need to be redrawn. This method makes a note of the request and returns immediately. The view is not actually redrawn until the next drawing cycle, at which point all invalidated views are updated.