UINavigationBar* navigation = [[UINavigationBaralloc]
initWithFrame:CGRectMake(100,150,
568, 50)];
[self.viewaddSubview:navigation];
UINavigationItem* navigationItem = [[UINavigationItemalloc]
init];
[navigationpushNavigationItem:navigationItem
animated:YES];
UIButton *backButton = [UIButtonbuttonWithType:UIButtonTypeCustom];
backButton.frame =CGRectMake(0.0,0.0,
55.0, 30.0);
[backButton setTitle:@"返回"forState:UIControlStateNormal];
backBu......
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