在項目中，有時候在一些控件（如Button、TextView)中要添加一些符号，如下圖所示：
這個時候可以使用圖檔的方式來顯示，不過這些可以直接使用Unicode碼就直接顯示出來了。
4個箭頭圖示的代碼如下：
皇冠和音樂圖示代碼如下：
上面的幾個字元串值為：
====================================================================================================
從網上找到了部分關于特殊符号的Unicode碼值，記錄下來，以備後用，如下所示：
用Android的string.xml中使用Unicode表示符号的話，就使用下面的JS相關的Unicode值即可
符号
UNICODE
HTML
JS
CSS
⇠
&#8672
\u21E0
\21E0
⇢
&#8674
\u21E2
\21E2
⇡
&#8673
\u21E1
\21E1
⇣
&#8675
\u21E3
\21E3
↞
&#8606
\u219E
\219E
↠
&#8608
\u21A0
\21A0
↟
&#8607
\u219F
\219F
↡
&#8609
\u21A1
\21A1
←
&#8592
\u2190
\2190
→
&#8594
\u2192
\2192
↑
&#8593
\u2191
\2191
↓
&#8595
\u2193
\2193
↔
&#8596
\u2194
\2194
↕
&#8597
\u2195
\2195
⇄
&#8644
\u21C4
\21C4
⇅
&#8645
\u21C5
\21C5
↢
&#8610
\u21A2
\21A2
↣
&#8611
\u21A3
\21A3
⇞
&#8670
\u21DE
\21DE
⇟
&#8671
\u21DF
\21DF
↫
&#8619
\u21AB
\21AB
↬
&#8620
\u21AC
\21AC
⇜
&#8668
\u21DC
\21DC
⇝
&#8669
\u21DD
\21DD
↚
&#8602
\u219A
\219A
↛
&#8603
\u219B
\219B
↮
&#8622
\u21AE
\21AE
↭
&#8621
\u21AD
\21AD
⇦
&#8678
\u21E6
\21E6
⇨
&#8680
\u21E8
\21E8
⇧
&#8679
\u21E7
\21E7
⇩
&#8681
\u21E9
\21E9
▲
&#9650
\u25B2
\25B2
►
&#9658
\u25BA
\25BA
▼
&#9660
\u25BC
\25BC
◄
&#9668
\u25C4
\25C4
&#10132
\u2794
\2794
&#10137
\u2799
\2799
&#10152
\u27A8
\27A8
&#10162
\u27B2
\27B2
&#10140
\u279C
\279C
&#10142
\u279E
\279E
&#10143
\u279F
\279F
&#10144
\u27A0
\27A0
&#10148
\u27A4
\27A4
&#10149
\u27A5
\27A5
&#10150
\u27A6
\27A6
&#10151
\u27A7
\27A7
&#10165
\u27B5
\27B5
&#10168
\u27B8
\27B8
&#10172
\u27BC
\27BC
&#10173
\u27BD
\27BD
&#10170
\u27BA
\27BA
&#10163
\u27B3
\27B3
↷
&#8631
\u21B7
\21B7
↶
&#8630
\u21B6
\21B6
↻
&#8635
\u21BB
\21BB
↺
&#8634
\u21BA
\21BA
↵
&#8629
\u21B5
\21B5
↯
&#8623
\u21AF
\21AF
&#10174
\u27BE
\27BE
&#10084
\u2764
\2764
&#9992
\u2708
\2708
&#9733
\u2605
\2605
&#10022
\u2726
\2726
&#9728
\u2600
\2600
◆
&#9670
\u25C6
\25C6
◈
&#9672
\u25C8
\25C8
▣
&#9635
\u25A3
\25A3
&#9787
\u263B
\263B
&#9786
\u263A
\263A
&#9785
\u2639
\2639
&#9993
\u2709
\2709
&#9742
\u260E
\260E
&#9743
\u260F
\260F
&#9990
\u2706
\2706
�
&#65533
\uFFFD
\FFFD
&#9729
\u2601
\2601
&#9730
\u2602
\2602
&#10052
\u2744
\2744
&#9731
\u2603
\2603
&#10056
\u2748
\2748
&#10047
\u273F
\273F
&#10048
\u2740
\2740
&#10049
\u2741
\2741
&#9752
\u2618
\2618
&#10086
\u2766
\2766
&#9749
\u9749
\9749
&#10050
\u2742
\2742
&#9765
\u2625
\2625
&#9774
\u262E
\262E
&#9775
\u262F
\262F
&#9770
\u262A
\262A
&#9764
\u2624
\2624
&#9988
\u2704
\2704
&#9986
\u2702
\2702
&#9784
\u2638
\2638
&#9875
\u2693
\2693
&#9763
\u2623
\2623
&#9888
\u26A0
\26A0
&#9889
\u26A1
\26A1
&#9762
\u2622
\2622
&#9851
\u267B
\267B
&#9855
\u267F
\267F
&#9760
\u2620
\2620
$
&#36
\u0024
\0024
¢
&#162
\u00A2
\00A2
£
&#163
\u00A3
\00A3
¤
&#164
\u00A4
\00A4
€
&#8364
\u20AC
\20AC
¥
&#165
\u00A5
\00A5
₱
&#8369
\u20B1
\20B1
₹
&#8377
\u20B9
\20B9
½
&#189
\u00BD
\00BD
¼
&#188
\u00BC
\00BC
¾
&#190
\u00BE
\00BE
⅓
&#8531
\u2153
\2153
⅔
&#8532
\u2154
\2154
⅛
&#8539
\u215B
\215B
⅜
&#8540
\u215C
\215C
⅝
&#8541
\u215D
\215D
‰
&#8240
\u2030
\2030
%
&#37
\u0025
\0025
<
&#60
\u003C
\003C
>
&#62
\u003E
\003E
&#9833
\u2669
\2669
&#9834
\u266A
\266A
&#9835
\u266B
\266B
&#9836
\u266C
\266C
&#9837
\u266D
\266D
&#9839
\u266F
\266F
&#160
\u00A0
\00A0
&#9744
\u2610
\2610
&#9745
\u2611
\2611
&#9746
\u2612
\2612
&#10003
\u2713
\2713
&#10004
\u2714
\2714
&#10005
\u10005
\10005
&#10006
\u2716
\2716
&#10007
\u2717
\2717
&#10008
\u2718
\2718
&#10029
\u272D
\272D
&#10030
\u272E
\272E
&#9734
\u2606
\2606
&#10026
\u272A
\272A
&#10017
\u2721
\2721
&#10031
\u272F
\272F
&#10037
\u2735
\2735
&#10038
\u2736
\2736
&#10040
\u2738
\2738
&#10041
\u2739
\2739
&#10042
\u273A
\273A
&#10033
\u2731
\2731
&#10034
\u2732
\2732
&#10036
\u2734
\2734
&#10035
\u2733
\2733
&#10043
\u273B
\273B
&#10045
\u273D
\273D
&#10059
\u274B
\274B
&#10054
\u2746
\2746
&#10053
\u2745
\2745
&#9800
\u2648
\2648
&#9801
\u2649
\2649
&#9802
\u264A
\264A
&#9803
\u264B
\264B
&#9804
\u264C
\264C
&#9805
\u264D
\264D
&#9806
\u264E
\264E
&#9807
\u264F
\264F
&#9808
\u2650
\2650
&#9809
\u2651
\2651
&#9810
\u2652
\2652
&#9811
\u2653
\2653
&#9818
\u265A
\265A
&#9819
\u265B
\265B
&#9820
\u265C
\265C
&#9821
\u265D
\265D
&#9822
\u265E
\265E
&#9823
\u265F
\265F
&#9812
\u2654
\2654
&#9813
\u2655
\2655
&#9814
\u2656
\2656
&#9815
\u2657
\2657
&#9816
\u2658
\2658
&#9817
\u2659
\2659
&#9824
\u2660
\2660
&#9827
\u2663
\2663
&#9829
\u2665
\2665
&#9830
\u2666
\2666
&#9828
\u2664
\2664
&#9831
\u2667
\2667
&#9825
\u2661
\2661
&#9826
\u2662
\2662
Α
&#913
\u0391
\0391
Β
&#914
\u0392
\0392
Γ
&#915
\u0393
\0393
Δ
&#916
\u0394
\0394
Ε
&#917
\u0395
\0395
Ζ
&#918
\u0396
\0396
Η
&#919
\u0397
\0397
Θ
&#920
\u0398
\0398
Ι
&#921
\u0399
\0399
Κ
&#922
\u039A
\039A
Λ
&#923
\u039B
\039B
Μ
&#924
\u039C
\039C
Ν
&#925
\u039D
\039D
Ξ
&#926
\u039E
\039E
Ο
&#927
\u039F
\039F
Π
&#928
\u03A0
\03A0
Ρ
&#929
\u03A1
\03A1
Σ
&#931
\u03A3
\03A3
Τ
&#932
\u03A4
\03A4
Υ
&#933
\u03A5
\03A5
Φ
&#934
\u03A6
\03A6
Χ
&#935
\u03A7
\03A7
Ψ
&#936
\u03A8
\03A8
Ω
&#937
\u03A9
\03A9
&#9768
\u2628
\2628
&#9769
\u2629
\2629
&#10013
\u271D
\271D
&#10014
\u271E
\271E
&#10015
\u271F
\271F
&#10016
\u2720
\2720
&#10010
\u271A
\271A
†
&#8224
\u2020
\2020
&#10018
\u2722
\2722
&#10020
\u2724
\2724
&#10019
\u2723
\2723
&#10021
\u2725
\2725
®
&#174
\u00AE
\00AE
©
&#169
\u00A9
\00A9
℗
&#8471
\u2117
\2117
™
&#153
\u0099
\0099
℠
&#8480
\u2120
\2120
«
&#171
\u00AB
\00AB
»
&#187
\u00BB
\00BB
‹
&#139
\u008B
\008B
›
&#155
\u009B
\009B
“
&#8220
\u201C
\201C
”
&#8221
\u201D
\201D
‘
&#8216
\u2018
\2018
’
&#8217
\u2019
\2019
•
&#8226
\u2022
\2022
◦
&#9702
\u25E6
\25E6
¡
&#161
\u00A1
\00A1
¿
&#191
\u00BF
\00BF
℅
&#8453
\u2105
\2105
№
&#8470
\u2116
\2116
&
&#38
\u0026
\0026
@
&#64
\u0040
\0040
℞
&#8478
\u211E
\211E
℃
&#8451
\u2103
\2103
℉
&#8457
\u2109
\2109
°
&#176
\u00B0
\00B0
|
&#124
\u007C
\007C
¦
&#166
\u00A6
\00A6
–
&#8211
\u2013
\2013
—
&#8212
\u2014
\2014
…
&#8230
\u2026
\2026
¶
&#182
\u00B6
\00B6
∼
&#8764
\u223C
\223C
≠
&#8800
\u2260
\2260
====================================================================================
作者：歐陽鵬 歡迎轉載，與人分享是進步的源泉！
====================================================================================