Uiimageview Turn Gray

1.UIImageView rounded Corners

[OBJC]View Plaincopy

1. Calayer *l = [cell. imgavatarimage layer];
2. [L setmaskstobounds:YES];
3. [L Setcornerradius:6. 0];

2.UIImageView Display Circle

[OBJC]View Plaincopy

2. Uiimageview *imageview1 = [[Uiimageviewalloc] initwithimage:[uiimageimagenamed:@ "Image.png"]];
6. ImageView1. frame = CGRectMake (60,100, 10 0, 100);
10. ImageView1. Layer. maskstobounds =YES;
14. ImageView1. Layer. Cornerradius =50;
18. [self. View addsubview:imageview1];

3.UIImageView dimmed effect

[OBJC]View Plaincopy

2. + (uiimage*) Getgrayimage: (uiimage*) sourceimage
4. {
6. int width = sourceimage. Size. width;
8. int height = sourceimage. Size. Height;
12. Cgcolorspaceref colorspace = Cgcolorspacecreatedevicegray ();
14. Cgcontextref context = cgbitmapcontextcreate (nil,width,height,8,0,colorspace,kcgimagealphanone);
16. Cgcolorspacerelease (ColorSpace);
20. if (context = = NULL) {
22. return Nil;
24. }
28. Cgcontextdrawimage (Context,cgrectmake (0, 0, width, height), sourceimage.  Cgimage);
30. Cgimageref Grayimageref = cgbitmapcontextcreateimage (context);
32. UIImage *grayimage = [UIImage imagewithcgimage:grayimageref];
34. Cgcontextrelease (context);
36. Cgimagerelease (GRAYIMAGEREF);
40. return grayimage;
42. }

4 UIImage Setting display size

[OBJC]View Plaincopy

2. -(UIImage *) scaletosize: (UIImage *) img size: (cgsize) size{
4. Uigraphicsbeginimagecontext (size);
6. [img drawinrect:cgrectmake (0, 0, size. width, size. height)];
8. uiimage* scaledimage = Uigraphicsgetimagefromcurrentimagecontext ();
10. //Make current context out of stack
12. Uigraphicsendimagecontext ();
14. //Returns a new resized image
16. return scaledimage;
18. }

Uiimageview Turn Gray