最后一个是事件参数，以下是对照表:
0 --> "keycode_unknown"
1 --> "keycode_menu"
2 --> "keycode_soft_right"
3 --> "keycode_home"
4 --> "keycode_back"
5 --> "keycode_call"
6 --> "keycode_endcall"
7 --> "keycode_0"
8 --> "keycode_1"
9 --> "keycode_2"
10 --> "keycode_3"
11 --> "keycode_4"
12 --> "keycode_5"
13 --> "keycode_6"
14 --> "keycode_7"
15 --> "keycode_8"
16 --> "keycode_9"
17 --> "keycode_star"
18 --> "keycode_pound"
19 --> "keycode_dpad_up"
20 --> "keycode_dpad_down"
21 --> "keycode_dpad_left"
22 --> "keycode_dpad_right"
23 --> "keycode_dpad_center"
24 --> "keycode_volume_up"
25 --> "keycode_volume_down"
26 --> "keycode_power"
27 --> "keycode_camera"
28 --> "keycode_clear"
29 --> "keycode_a"
30 --> "keycode_b"
31 --> "keycode_c"
32 --> "keycode_d"
33 --> "keycode_e"
34 --> "keycode_f"
35 --> "keycode_g"
36 --> "keycode_h"
37 --> "keycode_i"
38 --> "keycode_j"
39 --> "keycode_k"
40 --> "keycode_l"
41 --> "keycode_m"
42 --> "keycode_n"
43 --> "keycode_o"
44 --> "keycode_p"
45 --> "keycode_q"
46 --> "keycode_r"
47 --> "keycode_s"
48 --> "keycode_t"
49 --> "keycode_u"
50 --> "keycode_v"
51 --> "keycode_w"
52 --> "keycode_x"
53 --> "keycode_y"
54 --> "keycode_z"
55 --> "keycode_comma"
56 --> "keycode_period"
57 --> "keycode_alt_left"
58 --> "keycode_alt_right"
59 --> "keycode_shift_left"
60 --> "keycode_shift_right"
61 --> "keycode_tab"
62 --> "keycode_space"
63 --> "keycode_sym"
64 --> "keycode_explorer"
65 --> "keycode_envelope"
66 --> "keycode_enter"
67 --> "keycode_del"
68 --> "keycode_grave"
69 --> "keycode_minus"
70 --> "keycode_equals"
71 --> "keycode_left_bracket"
72 --> "keycode_right_bracket"
73 --> "keycode_backslash"
74 --> "keycode_semicolon"
75 --> "keycode_apostrophe"
76 --> "keycode_slash"
77 --> "keycode_at"
78 --> "keycode_num"
79 --> "keycode_headsethook"
80 --> "keycode_focus"
81 --> "keycode_plus"
82 --> "keycode_menu"
83 --> "keycode_notification"
84 --> "keycode_search"
85 --> "tag_last_keycode"