在xcode中实现表情符号

| 我正在尝试构建一个应用程序,让我可以像GTalk中那样自由添加用户表情符号(例如:P :) :( ...)。但是,一旦用户输入了字符,我就无法弄清楚处理和显示它们的确切方法。 敬请原谅,因为任何形式的帮助都可以触发解决方案。     
已邀请:
对于输入,您可以使用自定义按钮,使用表情符号的unicode表示设置其标题。 Iphone为此提供了本机支持。
[myButton setTitle:@\"\\ue415\" forState:UIControlStateNormal];
为了在文本框中显示它,您必须将其作为字符串的单个字符处理,以便可以将常规文本与表情符号连接起来。 此页面列出了表情符号的完整列表:http://pukupi.com/post/1964/ 编辑:您可以使用转换表 :) = \\ ue415 :( = \\ ue40e .... 您可以在转换表中使用图像而不是Unicode字符,但是如果要在同一段落中合并文本和图像,则转换表非常复杂。 如果您要使用图片,这是使用属性列表的示例
<?xml version=\"1.0\" encoding=\"UTF-8\"?>
<!DOCTYPE plist PUBLIC \"-//Apple Computer//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/PropertyList-1.0.dtd\">
<plist version=\"1.0\">
    <dict>
        <key>SparkSetVersion</key>
        <integer>1</integer>
        <key>Emoticons</key>
        <dict>
            <key>angry.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>&gt;:o</string>
                    <string>&gt;:-o</string>
                    <string>&gt;:O</string>
                    <string>&gt;:-O</string>
                    <string></string>
                </array>
                <key>Name</key>
                <string>Angry</string>
            </dict>
            <key>blush.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>:-[</string>
                </array>
                <key>Name</key>
                <string>Blush</string>
            </dict>
            <key>confused.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>?:|</string>
                </array>
                <key>Name</key>
                <string>Confused</string>
            </dict>
            <key>cool.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>B-)</string>
                </array>
                <key>Name</key>
                <string>Cool</string>
            </dict>
            <key>cry.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>:\'(</string>
                    <string></string>
                </array>
                <key>Name</key>
                <string>Cry</string>
            </dict>
            <key>devil.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>]:)</string>
                </array>
                <key>Name</key>
                <string>Devil</string>
            </dict>
            <key>grin.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>:-D</string>
                    <string>:D</string>
                    <string></string>
                </array>
                <key>Name</key>
                <string>Grin</string>
            </dict>
            <key>happy.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>:-)</string>
                </array>
                <key>Name</key>
                <string>Happy</string>
            </dict>
            <key>laugh.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>:^0</string>
                </array>
                <key>Name</key>
                <string>Laugh</string>
            </dict>
            <key>love.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>:x</string>
                </array>
                <key>Name</key>
                <string>Love</string>
            </dict>
            <key>mischief.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>;\\</string>
                </array>
                <key>Name</key>
                <string>Mischief</string>
            </dict>
            <key>mischief.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>;\\</string>
                </array>
                <key>Name</key>
                <string>Mischief</string>
            </dict>

            <key>sad.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>:-(</string>
                    <string>:(</string>
                    <string></string>
                </array>
                <key>Name</key>
                <string>Sad</string>
            </dict>
            <key>smile.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>:-)</string>
                    <string>:)</string>
                    <string></string>
                </array>
                <key>Name</key>
                <string>Smile</string>
            </dict>
            <key>silly.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>:-p</string>
                    <string>:-P</string>
                    <string>:P</string>
                    <string>:p</string>
                    <string></string>
                </array>
                <key>Name</key>
                <string>Tongue</string>
            </dict>
            <key>cool.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>8-)</string>
                    <string></string>
                </array>
                <key>Name</key>
                <string>Cool</string>
            </dict>
            <key>wink.png</key>
            <dict>
                <key>Equivalents</key>
                <array>
                    <string>;-)</string>
                    <string>;)</string>
                    <string></string>
                </array>
                <key>Name</key>
                <string>Wink</string>
            </dict>
        </dict>
    </dict>
</plist>
    

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