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实现在navigationController中添加toolbarItems工具栏 - (void)viewDidLoad {     [super viewDidLoad];     self.navigationController.navigationBar.translucent = NO;     self.navigationController.toolba

转自:http://www.cnblogs.com/tongyuling/p/5948276.html     //左键 //    UIButton *backBtn = [UIButton buttonWithType:UIButtonTypeCustom]; //    backBtn.frame = CGRectMake(0, 6, 40, 23); //    UIImage

1.正常设置根据 //    UIButton *backBtn = [UIButton buttonWithType:UIButtonTypeCustom]; //    backBtn.frame = CGRectMake(0, 6, 40, 23); //    UIImageView *backImg = [[UIImageView alloc] initWithIm