网络图片+修改导航样式

/* 

//加载请求回来的网络数据的图片
UIImage *image=[UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:listModel.coverimg]]];
UIImageView *imagView=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, W10, 10 )];
[imagView setImage:image];<span style="color:#ffffff;">
</span>

*/

/*

//修改导航的Items的样式（在父类中写，然后在需要的类中继承即可）

-(void)changeNavigationBackView{
[self.navigationItem setHidesBackButton:YES];

UIButton *btn=[UIButton buttonWithType:UIButtonTypeSystem];
btn.frame=CGRectMake(15, 5, 38, 38) ;
[btn setBackgroundImage:[UIImage imageNamed:@"156.png"] forState:UIControlStateNormal];
[btn addTarget:self action:@selector(goBackAction) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *back=[[UIBarButtonItem alloc]initWithCustomView:btn];
self.navigationItem.leftBarButtonItem=back;

}

-(void)goBackAction{

[self.navigationController popViewControllerAnimated:YES];
}

*/