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HMSegmentedControl 是 UISegmentedControl 的替代品，模仿了 Google Currents 使用的效果。

HMSegmentedControl

A drop-in replacement for UISegmentedControl mimicking the style of the segmented control used in Google Currents and various other Google products.

Features

Supports both text and images
Font and all colors are customizable
Supports selection indicator both on top and bottom
Supports blocks
Works with ARC and iOS >= 5

Installation

CocoaPods

The easiest way of installing HMSegmentedControl is via CocoaPods.

pod 'HMSegmentedControl', '~> 1.1.0'

Cocoa-whaa?

If you haven't heard about CocoaPods (seriously, where were you?!), it's a dependency manager for Xcode projects that provides very simple installation of libraries. Here's how to get started.

Install CocoaPods if not already available:

$ [sudo] gem install cocoapods
$ pod setup

Change to the directory of your Xcode project, and Create and Edit your Podfile and add HMSegmentedControl:

$ cd /path/to/MyProject
$ touch Podfile
$ edit Podfile
platform :ios, '5.0' 
pod 'HMSegmentedControl', '~> 1.2.0'

Install into your project:

$ pod install

Open your project in Xcode from the .xcworkspace file (not the usual project file)

$ open MyProject.xcworkspace

Old-fashioned way

Add HMSegmentedControl.h and HMSegmentedControl.m to your project.
Add QuartzCore.framework to your linked frameworks.
#import "HMSegmentedControl.h" where you want to add the control.

Usage

The code below will create a segmented control with the default looks:

    HMSegmentedControl *segmented = [[HMSegmentedControl alloc] initWithSectionTitles:@[@"已收公告",@"已发公告"]];
    segmented.autoresizingMask = UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleWidth;
    segmented.frame = CGRectMake(self.view.bounds.size.width/2-100, 4, 200, 40);
    segmented.backgroundColor = [UIColor clearColor];
    segmented.selectionIndicatorHeight = 3.0f;
    segmented.font = [UIFont fontWithName:@"STHeitiSC-Light" size:19.0f];
    segmented.textColor = WHRGB(255, 175, 185);
    segmented.selectedTextColor = [UIColor whiteColor];
    segmented.selectionIndicatorColor = [UIColor whiteColor];
    segmented.selectionStyle = HMSegmentedControlSelectionStyleFullWidthStripe;
    segmented.selectionIndicatorLocation = HMSegmentedControlSelectionIndicatorLocationDown;
    [segmented addTarget:self action:@selector(segmentedControlChangedValue:) forControlEvents:UIControlEventValueChanged];
    self.segmentedControl = segmented;
    [self.navigationController.navigationBar addSubview:segmented];

Included is a demo project showing how to fully customise the control.

使用HMSegmentedControl实现分段控件