iOS 調整導航欄返回按鈕的位置

調整導航欄返回按鈕的位置

//創建返回按鈕 UIButton * leftBtn = [UIButton buttonWithType:UIButtonTypeSystem]; leftBtn.frame = CGRectMake(0, 0, 25,25); [leftBtn setBackgroundImage:[UIImage imageNamed:@"icon_back"] forState:UIControlStateNormal]; [leftBtn addTarget:self action:@selector(leftBarBtnClicked:) forControlEvents:UIControlEventTouchUpInside]; UIBarButtonItem * leftBarBtn = [[UIBarButtonItem alloc]initWithCustomView:leftBtn];; //創建UIBarButtonSystemItemFixedSpace UIBarButtonItem * spaceItem = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil]; //將寬度設為負值 spaceItem.width = -15; //將兩個BarButtonItem都返回給NavigationItem self.navigationItem.leftBarButtonItems = @[spaceItem,leftBarBtn];