Circle arc based control with selected number of leaves (like a pizza).

Examples:

Customisable outlook:

• set the angle where to start drawing (eg draw from top),
• set the total angle of the drawing (eg 180 degrees, so half of the circle),
• set number of arcs to display,
• change size of the margin between arcs,
• customise the background color of selected and not selected arc,
• change the thickness of the drawing (draw full arc to the middle of the circle or just the border),
• add text on each arc (round label),
• customise details like shadows,
• respond to tap on each leaf (take advantage of blocks).

Implementation:

Please refer to the demo for more in depth examples or check out source code.

NORVView

• actionBlock - Allows to react to user interaction (taps).

[rosettaView setActionBlock:^(NORVView *view, NSUInteger selectedIndex) {
    [view setSelectedIndex:selectedIndex];
    [weakSelf updateView:view withSelectedIndex:selectedIndex];
}];

• selectedIndex - Determines the index of selected arc in the circle.

[rosettaView setSelectedIndex:selectedIndex];

• leaves - Determines number of arcs, colors, text etc. Refer to NORVLeaf documentation for more details.

[rosettaView setLeaves:@[leaf1, leaf2, leaf3]];

• startAngle - Determines the position where to start drawing the arcs. Default 180 degrees, which is left middle.

 [rosettaView setStartAngle:45.f];

• totalAngle - Determines the angle on which all arcs should be drawn. Eg 180 will make half of the circle filled with arcs, rest will be empty.

 [rosettaView setTotalAngle:90.f];

• marginAngle - Determines the angle between arcs on the outer side of the circle.

 [rosettaView setMarginAngle:5.f];

• thickness - Determines the width which should be filled with color. 1 causes a border, radius causes full fill with the color.

[rosettaView setThickness:70.f];

• shadowWidth - Determines the width of shadow around the elements.

 [rosettaView setShadowWidth:5];

• shadowColor - Determines the color of shadow around the elements.

 [rosettaView setShadowColor:[UIColor blackColor]];

NORVLeaf

• rosettaLeafWithColor:selectedColor:circleTextView: - Convenience initializer for leaf objects, with basic setup.

[NORVLeaf rosettaLeafWithColor:[UIColor grayColor]
                                         selectedColor:[UIColor blackColor]
                                        circleTextView:[NORVCircleTextView rosettaCircleText:@"Button" withTextAttributes:nil]];

• color - Determines the color of not selected element.

 [leaf setColor:[UIColor blackColor]];

• selectedColor - Determines the color of the selected element.

 [leaf setSelectedColor:[UIColor blackColor]];

• circleTextView - Determines the label with rounded text.

 [leaf.circleTextView setTextAttributes:(i == selectedIndex) ? selectedTextAttributes : textAttributes];

NORVCircleTextView

Inherits from XMCircleTypeView (credits: XMCircleType). Is used to display the text on each leaf.

• rosettaCircleText:withTextAttributes: - Convenience initializer for text with attrubutes.

[NORVCircleTextView rosettaCircleText:NSLocalizedString(@"Quite Long Button", nil)
                                                                       withTextAttributes:nil];

Installation:

Submodule

In your projects git folder type:

git submodule init
git submodule add --copy link to the repo--
git submodule update

Copy all files from NORosettaView/RosettaView folder.

Just download & attach

This is strongly misadvised as you won't be able to see code updates. Clone or download the source, copy all files from NOCategories folder.

ChangeLog

• 0.1 Added basic project, configured styling, added first cocoapod.

Author

Natalia Osiecka, osiecka.n@gmail.com

• Natalia Osiecka (@vivelee)

License

Available under the Apache 2.0 license. See the LICENSE file for more info.

Requirements

Requires Xcode 6, targeting either iOS 6.0 or higher.