- (void)viewWillAppear:(BOOL)animated{//設(shè)置導(dǎo)航欄背景圖片為一個(gè)空的image，這樣就透明了[self.navigationController.navigationBar setBackgroundImage:[[UIImagealloc] init] forBarMetrics:UIBarMetricsDefault];//去掉透明后導(dǎo)航欄下邊的黑邊[self.navigationController.navigationBar setShadowImage:[[UIImagealloc] init]];}
- (void)viewWillDisappear:(BOOL)animated{//? ? 如果不想讓其他頁(yè)面的導(dǎo)航欄變?yōu)橥该?需要重置[self.navigationController.navigationBar setBackgroundImage:nilforBarMetrics:UIBarMetricsDefault];? ? [self.navigationController.navigationBar setShadowImage:nil];}
