Quartz2D-1(画文字、图片)

/**

 *  画文字

 *

 *  @param rect <#rect description#>

 */

- (void)drawRect:(CGRect)rect {

    NSString *text = @"房价阿里价格的感觉啊；栏杆机；第三个哭敬爱个；惊呆了噶舒服发的撒个";

    CGRect rt = CGRectMake(50.0,0.0, 100, 100);

    // 获取上下文

    CGContextRef ctf = UIGraphicsGetCurrentContext();

    // 绘图

    CGContextAddRect(ctf, rt);

    // 渲染

    CGContextStrokePath(ctf);

    

    NSMutableDictionary *dict = [NSMutableDictionary dictionary];

    [dict setValue:[UIColor greenColor] forKey:NSForegroundColorAttributeName];

    //dict[NSForegroundColorAttributeName] = [UIColor redColor];

    dict[NSBackgroundColorAttributeName] = [UIColor whiteColor];

    dict[NSFontAttributeName] = [UIFont systemFontOfSize:14];

    

    // ios7.0

    [text drawInRect:rt withAttributes:dict];

}

/**

 *  画图片

 *

 *  @param rect <#rect description#>

 */

- (void)drawRect:(CGRect)rect

{

    UIImage *image = [UIImageimageNamed:@"92AE1EE8-0B99-4F28-8B81-66B18E9A0001"];

//    [image drawAsPatternInRect:rect]; //平铺，大小不变

//    [image drawInRect:rect];// 拉伸图片

    [image drawAtPoint:CGPointMake(10,20)]; // 从一个点画，大小不变

}