一、在XIB上的View上用addSubview方法添加View1的时候,注意要用上自动布局,这样当这个View布局改变的时候,View1也会自适应改变布局;
[self.annularView removeFromSuperview];
self.annularView = nil;
XRAnnularPieView *annularView = [[XRAnnularPieView alloc] initWithFrame:self.wrongQuetionChartBgView.bounds]; // 这个frame还是获取的上次的,不是最新的布局;
self.annularView = annularView;
annularView.valueArray = sortValueArr;
annularView.colorArray = sortColorArr;
annularView.showAnimation = NO;
annularView.lineWidth = 10.f;
// annularView.radius = self.wrongQuetionChartBgView.width/2 - 8;
//[annularView strokePath];
//annularView.center = CGPointMake(self.wrongQuetionChartBgView.width/2, self.wrongQuetionChartBgView.width/2);
[self.wrongQuetionChartBgView addSubview:annularView];
[annularView mas_remakeConstraints:^(MASConstraintMaker *make) {
make.edges.mas_equalTo(UIEdgeInsetsMake(0, 0, 0, 0));
}];// 用自动布局,圆环View是跟圆环背景一样大了;但是圆环没跟着改变啊!
二、但是,这个View1上的子视图的布局却不会跟着改变,因为用的是frame布局的,这个时候View1的子视图是绘制了一个圆环,所以要在View1的layoutSubviews上重新绘制子视图;
XRAnnularPieView
-(void)layoutSubviews {
[super layoutSubviews];
NSLog(@"圆环背景 --- XRAnnularPieView本身 --- %@",NSStringFromCGRect(self.frame));
self.radius = self.width/2 - 2;
self.centerPoint = CGPointMake(self.width/2, self.height/2);
[self strokePath];
}