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我想將自定義按鈕設置爲正確的導航欄按鈕項目。下面是代碼:在自定義UIBarButtonItem周圍設置邊框
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setImage:[UIImage imageNamed:@"my.png"] forState:UIControlStateNormal];
[button addTarget:self action:@selector(filterResult) forControlEvents:UIControlEventTouchUpInside];
[button setFrame:CGRectMake(0, 0, 50, 50)];
self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithCustomView:button] autorelease];
的問題是,我可以看到它周圍只有圖像,而不是像按鈕談到了UIBarButtonSystemItemAdd或其他類型。
我該怎麼辦?