文本层CATextLayer使用

 

 

CATextLayer *txtLayer = [CATextLayer layer];
        txtLayer.string = @"地球";
        txtLayer.foregroundColor = [[UIColor redColor] CGColor];
        txtLayer.bounds = CGRectMake(0, 0, 200, 50);
        txtLayer.position = CGPointMake(0, 0);
        [imageLayer addSublayer:txtLayer];