The corners and shadows of IOS view coexist

UIView *v=[[uiview Alloc]initwithframe:cgrectmake (10, 10, 100, 100)];
V.backgroundcolor=[uicolor Yellowcolor];
V.layer.maskstobounds=yes; this line is removed.
v.layer.cornerradius=10;
V.layer.shadowcolor=[uicolor Redcolor]. Cgcolor;
V.layer.shadowoffset=cgsizemake (10, 10);
v.layer.shadowopacity=0.5;
v.layer.shadowradius=5;

[Self.view Addsubview:v];

The effect is as follows

/* When true a implicit mask matching the layer bounds is applied to
 * the layer (including the effects of th E ' Cornerradius ' property). If
 * both ' mask ' and ' maskstobounds ' are non-nil the other masks is
 * multiplied to get the actual mask V Alues. Defaults to NO.
 * animatable. */