一些开发内容，做个备注

总有一些方便的开发方式或者通用的方法，还总记不住，老是去翻以前的项目，做个备份。（慢慢补充）

1、view控件加边框

profileImageButton = [UIButton buttonWithType:UIButtonTypeCustom];

[profileImageButton.layer setMasksToBounds:YES];

[profileImageButton.layer setCornerRadius:4.0]; //设置矩形四个圆角半径

[profileImageButton.layer setBorderWidth:1.0];   //边框宽度

CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();

CGColorRef colorref = CGColorCreate(colorSpace,(CGFloat[]){225.0/255.0, 225.0/255.0, 225.0/255.0, 1.0 });

[profileImageButton.layer setBorderColor:colorref];//边框颜色 

单独设置圆角

[iconImage.layer setCornerRadius:4.0];

[iconImage setClipsToBounds:YES];

2、时区返回格式为数字(-12—+12)   

-(NSString *)getTimeZone{ 

    NSString *zone = [[NSTimeZone systemTimeZone] description];//Europe/Berlin//       America/New_York//   Asia/Harbin

                                                                               //这三个可以用来测试exp:NSString *zone = [[NSTimeZone timeZoneWithName:@"America/New_York"] description];

    NSString *time = [[zone componentsSeparatedByString:@"offset "] objectAtIndex:1];

    int inv = [time intValue];

    int result = inv / (60 * 60);

    if (result>0) {

        return [NSString stringWithFormat:@"+%d", result];

    }

    return [NSString stringWithFormat:@"%d", result];

}