//便利中间部分时间的子视图 计算并排不位置
for (int i=0;i<self.containerView.subviews.count;i++){
UIButton *btn=self.containerView.subviews[i];
int colIndex=i%colums; //列的索引
int rowIndex=i/colums; //行的索引
CGFloat viewX=marginLeft+colIndex*(marginX+width);//视图x的计算
CGFloat viewY=marginTop+rowIndex*(marginY+height);//视图y的计算
[self.btnYArray addObject:@(viewY)];//保存视图真实的y值
//计算视图没执行动画之前的y值
CGFloat hiddenY=viewY+CGRectGetHeight(self.containerView.frame)+self.frame.size.height-CGRectGetMaxY(self.containerView.frame);
[self.hiddenBtnYArray addObject:@(hiddenY)];//保存没执行动画之前的y值
btn.frame=CGRectMake(viewX,hiddenY,width,height); //赋值没执行动画之前视图的位置
}
//执行动画
[self animationsToBtn];
}
//执行显示时动画的方法
-(void)animationsToBtn{
dt=[NSUserDefaults standardUserDefaults];
[dt setObject:@(0) forKey:@"showORno"];
[dt synchronize];
UIButton *btn=self.containerView.subviews[0];//取到视图 按钮
CGFloat showY=[self.btnYArray[0] floatValue]; //取到视图真实的y坐标
dispatch_time_t time = dispatch_time(DISPATCH_TIME_NOW, (NSInteger)(0.02 * NSEC_PER_SEC));
dispatch_after(time, dispatch_get_main_queue(), ^{
//执行动画 并且显示到最终的位置
[UIView animateWithDuration:1.0 animations:^{
btn.frame=CGRectMake(btn.frame.origin.x, showY, btn.frame.size.width, btn.frame.size.height);
}];
UIButton *btn1=self.containerView.subviews[1];
CGFloat showY1=[self.btnYArray[1] floatValue];
dispatch_time_t time1 = dispatch_time(DISPATCH_TIME_NOW, (NSInteger)(0.02 * NSEC_PER_SEC));
dispatch_after(time1, dispatch_get_main_queue(), ^{
[UIView animateWithDuration:1.0 animations:^{
btn1.frame=CGRectMake(btn1.frame.origin.x, showY1, btn1.frame.size.width, btn1.frame.size.height);
}];
UIButton *btn2=self.containerView.subviews[2];
CGFloat showY2=[self.btnYArray[2] floatValue];
dispatch_time_t time2 = dispatch_time(DISPATCH_TIME_NOW, (NSInteger)(0.02 * NSEC_PER_SEC));
dispatch_after(time2, dispatch_get_main_queue(), ^{
[UIView animateWithDuration:1.0 animations:^{
btn2.frame=CGRectMake(btn2.frame.origin.x, showY2, btn2.frame.size.width, btn2.frame.size.height);
}];
UIButton *btn3=self.containerView.subviews[3];
CGFloat showY3=[self.btnYArray[3] floatValue];
dispatch_time_t time3 = dispatch_time(DISPATCH_TIME_NOW, (NSInteger)(0.02 * NSEC_PER_SEC));
dispatch_after(time3, dispatch_get_main_queue(), ^{
[UIView animateWithDuration:1.0 animations:^{
btn3.frame=CGRectMake(btn3.frame.origin.x, showY3, btn3.frame.size.width, btn3.frame.size.height);
}];
UIButton *btn4=self.containerView.subviews[4];
CGFloat showY4=[self.btnYArray[4] floatValue];
dispatch_time_t time4 = dispatch_time(DISPATCH_TIME_NOW, (NSInteger)(0.02 * NSEC_PER_SEC));
dispatch_after(time4, dispatch_get_main_queue(), ^{
[UIView animateWithDuration:1.0 animations:^{
btn4.frame=CGRectMake(btn4.frame.origin.x, showY4, btn4.frame.size.width, btn4.frame.size.height);
}];
// UIButton *btn5=self.containerView.subviews[5];
//
// CGFloat showY5=[self.btnYArray[5] floatValue];
//
// dispatch_time_t time5 = dispatch_time(DISPATCH_TIME_NOW, (NSInteger)(0.02 * NSEC_PER_SEC));
// dispatch_after(time5, dispatch_get_main_queue(), ^{
//
// [UIView animateWithDuration:1.0 animations:^{
//
// btn5.frame=CGRectMake(btn5.frame.origin.x, showY5, btn5.frame.size.width, btn5.frame.size.height);
//
// }];
//
// });
});
});
});
});
});
}
//二、调用（在哪个控制器里面需要调用，就写在那个）
EG:点击按钮的时候
//得到appdelegate的单列对象
AppDelegate *app=(AppDelegate *)[UIApplication sharedApplication].delegate;
//实例化封面对象 并且添加到窗体中去
CoverView *cover=[CoverView coverView];
[app.window addSubview:cover];
//去掉系统的布局 手动布局
cover.translatesAutoresizingMaskIntoConstraints=NO;
NSLayoutConstraint *top=[NSLayoutConstraint constraintWithItem:cover attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual toItem:app.window attribute:NSLayoutAttributeTop multiplier:1 constant:0];
NSLayoutConstraint *left=[NSLayoutConstraint constraintWithItem:cover attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual toItem:app.window attribute:NSLayoutAttributeLeft multiplier:1 constant:0];
NSLayoutConstraint *right=[NSLayoutConstraint constraintWithItem:cover attribute:NSLayoutAttributeRight relatedBy:NSLayoutRelationEqual toItem:app.window attribute:NSLayoutAttributeRight multiplier:1 constant:0];
NSLayoutConstraint *bottom=[NSLayoutConstraint constraintWithItem:cover attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual toItem:app.window attribute:NSLayoutAttributeBottom multiplier:1 constant:0];
top.active=YES;
left.active=YES;
right.active=YES;
bottom.active=YES;
三、以上的举例是添加到系统页面上的、如果是当前控制器、就把
AppDelegate *app=(AppDelegate *)[UIApplication sharedApplication].delegate;
注释、把所有的app.window修改成self.view
