//导航栏上添加字体
self.navigationItem.leftBarButtonItem=[[[UIBarButtonItemalloc] initWithTitle:@"返回"style:UIBarButtonItemStylePlaintarget:selfaction:@selector(pushAction)]autorelease];
UILabel *customLab = [[UILabelalloc] initWithFrame:CGRectMake(0,0, self.view.frame.origin.x/2,30)];
[customLab setTextColor:[UIColorwhiteColor]];
[customLabsetText:@"我的导航"];
customLab.font = [UIFontboldSystemFontOfSize:30];
self.navigationItem.titleView = customLab;
//按钮上添加图片和文字
UIButton *pauseBtn = [UIButtonbuttonWithType:UIButtonTypeCustom];
[pauseBtn setImage:[UIImageimageNamed:@"btn_red_small"]forState:UIControlStateNormal];
[pauseBtn setImage:[UIImageimageNamed:@"btn_red_small_press"]forState:UIControlStateHighlighted];
pauseBtn.frame =CGRectMake(250,30, 65, 30);
[pauseBtn addTarget:selfaction:@selector(pauseAction:)forControlEvents:UIControlEventTouchUpInside];
UILabel *text = [[UILabelalloc]init];
text.frame = pauseBtn.bounds;
text.text =@"点击";
text.textAlignment =NSTextAlignmentCenter;
text.font = [UIFontsystemFontOfSize:25];
text.textColor = [UIColorwhiteColor];
[pauseBtnaddSubview:text];
[self.viewaddSubview:pauseBtn];