UILabel帶圓角，陰影和背景圖案

Question

我一直在嘗試每一種方法，我發現，但我無法做到。我只是想製作一個帶圓角的標籤，一個帶背景圖案的陰影。只有當我不想要圓角時，影子纔會起作用。我無法讓他們在一起！

這裏是我的代碼的影子：

label.text = msg; 
label.textAlignment = UITextAlignmentCenter; 
label.frame = CGRectMake(20,10,280,40); 
label.backgroundColor 
    = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"msg_box_bg.png"]]; 

[label.layer setCornerRadius:10]; 
[label.layer setMasksToBounds:NO]; 

/* Shadow */ 
label.layer.shadowColor = [UIColor blackColor].CGColor; 
label.layer.shadowOpacity = 0.6; 
label.layer.shadowOffset = CGSizeMake(0,0); 
label.layer.shadowRadius = 3; 

這給了我的影子沒有圓角。但如果我使用

[label.layer setMasksToBounds:YES]; 

這將給我沒有陰影的圓角。我已使用了陰影路徑的提醒，所以用陰影路徑的代碼如下所示：

label.text = msg; 
label.textAlignment = UITextAlignmentCenter; 
label.frame = CGRectMake(20,10,280,40); 
label.backgroundColor 
    = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"msg_box_bg.png"]]; 

[label.layer setCornerRadius:10]; 
[label.layer setMasksToBounds:YES]; 

/* Shadow */ 
label.layer.shadowColor = [UIColor blackColor].CGColor; 
label.layer.shadowOpacity = 0.6; 
label.layer.shadowOffset = CGSizeMake(0,0); 
label.layer.shadowRadius = 3; 
label.layer.shadowPath = [[UIBezierPath bezierPathWithRoundedRect:label.frame cornerRadius:10]CGPath]; 
label.layer.shouldRasterize = YES; 

此代碼給我圓潤的邊角，但沒有影子。 有什麼建議嗎？

謝謝！

Answer 1

我用下面的代碼來獲得你後的結果。

CGSize size = CGSizeMake(280, 40); 

/** Shadow */ 
CALayer *shadowLayer = [CALayer new]; 
shadowLayer.frame = CGRectMake(20,100,size.width,size.height); 
shadowLayer.cornerRadius = 10; 

shadowLayer.backgroundColor = [UIColor clearColor].CGColor; 
shadowLayer.shadowColor = [UIColor blackColor].CGColor; 
shadowLayer.shadowOpacity = 0.6; 
shadowLayer.shadowOffset = CGSizeMake(0,0); 
shadowLayer.shadowRadius = 3; 

/** Label */ 
UILabel *label = [UILabel new]; 
label.text = @"Hello World"; 
label.textAlignment = UITextAlignmentCenter; 
label.frame = CGRectMake(0, 0, size.width, size.height); 
label.backgroundColor = [UIColor clearColor]; 
label.layer.cornerRadius = 10; 
[label.layer setMasksToBounds:YES]; 
// customLabel.backgroundColor = [UIColor whiteColor]; 
label.backgroundColor = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"options.png"]]; 

/** Add the Label to the shawdow layer */ 
[shadowLayer addSublayer:label.layer]; 

[self.view.layer addSublayer:shadowLayer];  

[shadowLayer release];