Question

如何修改navigationItem的rightBarButtonItem 背景颜色

Answer 1

leftBatButtonItem和 rightBarButtonItem
UIBarButtonItem *leftButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"左边按钮" style:UIBarButtonItemStylePlain
target:self action:@selector(OnLeftButton:)];
self.navigationItem.leftBarButtonItem = leftButtonItem;
[leftButtonItem release];

UIBarButtonItem *rightButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"右边按钮" style:UIBarButtonItemStylePlain
target:self action:@selector(OnRightButton:)];
self.navigationItem.rightBarButtonItem = rightButtonItem;
[rightButtonItem release];