iOS 隐藏tabbar代码详解

-(void)viewwillappear:(bool)animated
{
nsarray *array=self.tabbarcontroller.view.subviews;
uiview *view=array[2];
view.frame=cgrectmake(0, [uiscreen mainscreen ].bounds.size.height, [uiscreen mainscreen ].bounds.size.width, 49);
[uiview commitanimations];
}
- (void)viewwilldisappear:(bool)animated
{
nsarray *array=self.tabbarcontroller.view.subviews;
uiview *view=array[2];
view.frame=cgrectmake(0, [uiscreen mainscreen ].bounds.size.height-49, [uiscreen mainscreen ].bounds.size.width, 49);
[uiview commitanimations];
}

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