android开发中的一些特殊字符（如：←↑→↓等）Unicode码值等介绍
皇冠和音乐图标代码如下：
<linearlayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/music" />
<button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/crown" />
</linearlayout>
上面的几个字符串值为：
<string name="music">\u265a</string>
<string name="crown">\u266b</string>
<string name="left_arrow">\u2190</string>
<string name="up_arrow">\u2191</string>
<string name="down_arrow">\u2193</string>
<string name="right_arrow">\u2192</string>
从网上找到了部分关于特殊符号的unicode码值，记录下来，以备后用，如下所示：
用android的string.xml中使用unicode表示符号的话，就使用下面的js相关的unicode值即可
箭头类
| 符号 | unicode | 符号 | unicode | ||||
|---|---|---|---|---|---|---|---|
| html | js | css | html | js | css | ||
| ⇠ | \u21e0 | \21e0 | ⇢ | \u21e2 | \21e2 | ||
| ⇡ | \u21e1 | \21e1 | ⇣ | \u21e3 | \21e3 | ||
| ↞ | \u219e | \219e | ↠ | \u21a0 | \21a0 | ||
| ↟ | \u219f | \219f | ↡ | \u21a1 | \21a1 | ||
| ← | ← | \u2190 | \2190 | → | → | \u2192 | \2192 |
| ↑ | ↑ | \u2191 | \2191 | ↓ | ↓ | \u2193 | \2193 |
| ↔ | \u2194 | \2194 | ↕ | \u2195 | \2195 | ||
| ⇄ | \u21c4 | \21c4 | ⇅ | \u21c5 | \21c5 | ||
| ↢ | \u21a2 | \21a2 | ↣ | \u21a3 | \21a3 | ||
| ⇞ | \u21de | \21de | ⇟ | \u21df | \21df | ||
| ↫ | \u21ab | \21ab | ↬ | \u21ac | \21ac | ||
| ⇜ | \u21dc | \21dc | ⇝ | \u21dd | \21dd | ||
| ↚ | \u219a | \219a | ↛ | \u219b | \219b | ||
| ↮ | \u21ae | \21ae | ↭ | \u21ad | \21ad | ||
| ⇦ | \u21e6 | \21e6 | ⇨ | \u21e8 | \21e8 | ||
| ⇧ | \u21e7 | \21e7 | ⇩ | \u21e9 | \21e9 | ||
| ▲ | ▲ | \u25b2 | \25b2 | ► | \u25ba | \25ba | |
| ▼ | ▼ | \u25bc | \25bc | ◄ | \u25c4 | \25c4 | |
| ➔ | \u2794 | \2794 | ➙ | \u2799 | \2799 | ||
| ➨ | \u27a8 | \27a8 | ➲ | \u27b2 | \27b2 | ||
| ➜ | \u279c | \279c | ➞ | \u279e | \279e | ||
| ➟ | \u279f | \279f | ➠ | \u27a0 | \27a0 | ||
| ➤ | \u27a4 | \27a4 | ➥ | \u27a5 | \27a5 | ||
| ➦ | \u27a6 | \27a6 | ➧ | \u27a7 | \27a7 | ||
| ➵ | \u27b5 | \27b5 | ➸ | \u27b8 | \27b8 | ||
| ➼ | \u27bc | \27bc | ➽ | \u27bd | \27bd | ||
| ➺ | \u27ba | \27ba | ➳ | \u27b3 | \27b3 | ||
| ↷ | \u21b7 | \21b7 | ↶ | \u21b6 | \21b6 | ||
| ↻ | \u21bb | \21bb | ↺ | \u21ba | \21ba | ||
| ↵ | \u21b5 | \21b5 | ↯ | \u21af | \21af | ||
| ➾ | \u27be | \27be | |||||
基本形状类
| 符号 | unicode | 符号 | unicode | ||||
|---|---|---|---|---|---|---|---|
| html | js | css | html | js | css | ||
| ❤ | \u2764 | \2764 | ✈ | \u2708 | \2708 | ||
| ★ | ★ | \u2605 | \2605 | ✦ | \u2726 | \2726 | |
| ☀ | \u2600 | \2600 | ◆ | ◆ | \u25c6 | \25c6 | |
| ◈ | \u25c8 | \25c8 | ▣ | \u25a3 | \25a3 | ||
| ☻ | \u263b | \263b | ☺ | \u263a | \263a | ||
| ☹ | \u2639 | \2639 | ✉ | \u2709 | \2709 | ||
| ☎ | \u260e | \260e | ☏ | \u260f | \260f | ||
| ✆ | \u2706 | \2706 | � | \ufffd | \fffd | ||
| ☁ | \u2601 | \2601 | ☂ | \u2602 | \2602 | ||
| ❄ | \u2744 | \2744 | ☃ | \u2603 | \2603 | ||
| ❈ | \u2748 | \2748 | ✿ | \u273f | \273f | ||
| ❀ | \u2740 | \2740 | ❁ | \u2741 | \2741 | ||
| ☘ | \u2618 | \2618 | ❦ | \u2766 | \2766 | ||
| ☕ | \u9749 | \9749 | ❂ | \u2742 | \2742 | ||
| ☥ | \u2625 | \2625 | ☮ | \u262e | \262e | ||
| ☯ | \u262f | \262f | ☪ | \u262a | \262a | ||
| ☤ | \u2624 | \2624 | ✄ | \u2704 | \2704 | ||
| ✂ | \u2702 | \2702 | ☸ | \u2638 | \2638 | ||
| ⚓ | \u2693 | \2693 | ☣ | \u2623 | \2623 | ||
| ⚠ | \u26a0 | \26a0 | ⚡ | \u26a1 | \26a1 | ||
| ☢ | \u2622 | \2622 | ♻ | \u267b | \267b | ||
| ♿ | \u267f | \267f | ☠ | \u2620 | \2620 | ||
￥货币类
| 符号 | unicode | 符号 | unicode | ||||
|---|---|---|---|---|---|---|---|
| html | js | css | html | js | css | ||
| $ | $ | \u0024 | \0024 | ￠ | ¢ | \u00a2 | \00a2 |
| ￡ | £ | \u00a3 | \00a3 | ¤ | ¤ | \u00a4 | \00a4 |