ios字体设置

在IOS程序中设置UIButton的字体大小

1. btn.frame = CGRectMake(x, y, width, height); 
   
2. 
   
3. [btn setTitle: @"search" forState: UIControlStateNormal]; 
   
4. 
   
5. //设置按钮上的自体的大小 
   
6. 
   
7. //[btn setFont: [UIFont systemFontSize: 14.0]]; //这种可以用来设置字体的大小，但是可能会在将来的SDK版本中去除改方法 
   
8. 
   
9. //应该使用 
   
10. 
    
11. btn.titleLabel.font = [UIFont systemFontOfSize: 14.0]; 
    
12. 
    
13. [btn seBackgroundColor: [UIColor blueColor]]; 
    
14. 
    
15. //最后将按钮加入到指定视图superView 
    
16. 
    
17. [superView addSubview: btn]; 
    

复制代码

附：创建按钮的两种方法： 

1、动态创建 
btnfont = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
[btnfont setFrame:CGRectMake(100, 10, 120, 40)]; 
[btnfont addTarget:self action:nil forControlEvents:UIControlEventTouchUpInside]; 
[btnfont setTitle:@"字体" forState:UIControlStateNormal]; 
btnfont.backgroundColor=[UIColor clearColor]; 
[self.view addSubview:btnfont]; 
2、在xib文件中已经创建好，通过tag获取按钮 
UIButton *testButton= (UIButton*)[self.view viewWithTag:100]; 
[testButton addTarget:self action:@selector(test:) forControlEvents:UIControlEventTouchUpInside]; 

注册事件 
-(void) test: (id) sender{ 

UIAlertView *av = [[[UIAlertView alloc] initWithTitle:@"ceshi" message:@"test11111" delegate:nil cancelButtonTitle:@"OK"otherButtonTitles:nil] autorelease]; 

[av show]; 

}