通过adb发送按键输入事件

命令格式:

adb shell input keyevent “value”

'value'对应事件的值，如发送home（对应数值为3）按键事件：

adb shell input keyevent 3

支持的事件定义如下：

    /** Key code constant: Unknown key code. */    public static final int KEYCODE_UNKNOWN         = 0;    /** Key code constant: Soft Left key.     * Usually situated below the display on phones and used as a multi-function     * feature key for selecting a software defined function shown on the bottom left     * of the display. */    public static final int KEYCODE_SOFT_LEFT       = 1;    /** Key code constant: Soft Right key.     * Usually situated below the display on phones and used as a multi-function     * feature key for selecting a software defined function shown on the bottom right     * of the display. */    public static final int KEYCODE_SOFT_RIGHT      = 2;    /** Key code constant: Home key.     * This key is handled by the framework and is never delivered to applications. */    public static final int KEYCODE_HOME            = 3;    /** Key code constant: Back key. */    public static final int KEYCODE_BACK            = 4;    /** Key code constant: Call key. */    public static final int KEYCODE_CALL            = 5;    /** Key code constant: End Call key. */    public static final int KEYCODE_ENDCALL         = 6;    /** Key code constant: '0' key. */    public static final int KEYCODE_0               = 7;    /** Key code constant: '1' key. */    public static final int KEYCODE_1               = 8;    /** Key code constant: '2' key. */    public static final int KEYCODE_2               = 9;    /** Key code constant: '3' key. */    public static final int KEYCODE_3               = 10;    /** Key code constant: '4' key. */    public static final int KEYCODE_4               = 11;    /** Key code constant: '5' key. */    public static final int KEYCODE_5               = 12;    /** Key code constant: '6' key. */    public static final int KEYCODE_6               = 13;    /** Key code constant: '7' key. */    public static final int KEYCODE_7               = 14;    /** Key code constant: '8' key. */    public static final int KEYCODE_8               = 15;    /** Key code constant: '9' key. */    public static final int KEYCODE_9               = 16;    /** Key code constant: '*' key. */    public static final int KEYCODE_STAR            = 17;    /** Key code constant: '#' key. */    public static final int KEYCODE_POUND           = 18;    /** Key code constant: Directional Pad Up key.     * May also be synthesized from trackball motions. */    public static final int KEYCODE_DPAD_UP         = 19;    /** Key code constant: Directional Pad Down key.     * May also be synthesized from trackball motions. */    public static final int KEYCODE_DPAD_DOWN       = 20;    /** Key code constant: Directional Pad Left key.     * May also be synthesized from trackball motions. */    public static final int KEYCODE_DPAD_LEFT       = 21;    /** Key code constant: Directional Pad Right key.     * May also be synthesized from trackball motions. */    public static final int KEYCODE_DPAD_RIGHT      = 22;    /** Key code constant: Directional Pad Center key.     * May also be synthesized from trackball motions. */    public static final int KEYCODE_DPAD_CENTER     = 23;    /** Key code constant: Volume Up key.     * Adjusts the speaker volume up. */    public static final int KEYCODE_VOLUME_UP       = 24;    /** Key code constant: Volume Down key.     * Adjusts the speaker volume down. */    public static final int KEYCODE_VOLUME_DOWN     = 25;    /** Key code constant: Power key. */    public static final int KEYCODE_POWER           = 26;    /** Key code constant: Camera key.     * Used to launch a camera application or take pictures. */    public static final int KEYCODE_CAMERA          = 27;    /** Key code constant: Clear key. */    public static final int KEYCODE_CLEAR           = 28;    /** Key code constant: 'A' key. */    public static final int KEYCODE_A               = 29;    /** Key code constant: 'B' key. */    public static final int KEYCODE_B               = 30;    /** Key code constant: 'C' key. */    public static final int KEYCODE_C               = 31;    /** Key code constant: 'D' key. */    public static final int KEYCODE_D               = 32;    /** Key code constant: 'E' key. */    public static final int KEYCODE_E               = 33;    /** Key code constant: 'F' key. */    public static final int KEYCODE_F               = 34;    /** Key code constant: 'G' key. */    public static final int KEYCODE_G               = 35;    /** Key code constant: 'H' key. */    public static final int KEYCODE_H               = 36;    /** Key code constant: 'I' key. */    public static final int KEYCODE_I               = 37;    /** Key code constant: 'J' key. */    public static final int KEYCODE_J               = 38;    /** Key code constant: 'K' key. */    public static final int KEYCODE_K               = 39;    /** Key code constant: 'L' key. */    public static final int KEYCODE_L               = 40;    /** Key code constant: 'M' key. */    public static final int KEYCODE_M               = 41;    /** Key code constant: 'N' key. */    public static final int KEYCODE_N               = 42;    /** Key code constant: 'O' key. */    public static final int KEYCODE_O               = 43;    /** Key code constant: 'P' key. */    public static final int KEYCODE_P               = 44;    /** Key code constant: 'Q' key. */    public static final int KEYCODE_Q               = 45;    /** Key code constant: 'R' key. */    public static final int KEYCODE_R               = 46;    /** Key code constant: 'S' key. */    public static final int KEYCODE_S               = 47;    /** Key code constant: 'T' key. */    public static final int KEYCODE_T               = 48;    /** Key code constant: 'U' key. */    public static final int KEYCODE_U               = 49;    /** Key code constant: 'V' key. */    public static final int KEYCODE_V               = 50;    /** Key code constant: 'W' key. */    public static final int KEYCODE_W               = 51;    /** Key code constant: 'X' key. */    public static final int KEYCODE_X               = 52;    /** Key code constant: 'Y' key. */    public static final int KEYCODE_Y               = 53;    /** Key code constant: 'Z' key. */    public static final int KEYCODE_Z               = 54;    /** Key code constant: ',' key. */    public static final int KEYCODE_COMMA           = 55;    /** Key code constant: '.' key. */    public static final int KEYCODE_PERIOD          = 56;    /** Key code constant: Left Alt modifier key. */    public static final int KEYCODE_ALT_LEFT        = 57;    /** Key code constant: Right Alt modifier key. */    public static final int KEYCODE_ALT_RIGHT       = 58;    /** Key code constant: Left Shift modifier key. */    public static final int KEYCODE_SHIFT_LEFT      = 59;    /** Key code constant: Right Shift modifier key. */    public static final int KEYCODE_SHIFT_RIGHT     = 60;    /** Key code constant: Tab key. */    public static final int KEYCODE_TAB             = 61;    /** Key code constant: Space key. */    public static final int KEYCODE_SPACE           = 62;    /** Key code constant: Symbol modifier key.     * Used to enter alternate symbols. */    public static final int KEYCODE_SYM             = 63;    /** Key code constant: Explorer special function key.     * Used to launch a browser application. */    public static final int KEYCODE_EXPLORER        = 64;    /** Key code constant: Envelope special function key.     * Used to launch a mail application. */    public static final int KEYCODE_ENVELOPE        = 65;    /** Key code constant: Enter key. */    public static final int KEYCODE_ENTER           = 66;    /** Key code constant: Backspace key.     * Deletes characters before the insertion point, unlike {@link #KEYCODE_FORWARD_DEL}. */    public static final int KEYCODE_DEL             = 67;    /** Key code constant: '`' (backtick) key. */    public static final int KEYCODE_GRAVE           = 68;    /** Key code constant: '-'. */    public static final int KEYCODE_MINUS           = 69;    /** Key code constant: '=' key. */    public static final int KEYCODE_EQUALS          = 70;    /** Key code constant: '[' key. */    public static final int KEYCODE_LEFT_BRACKET    = 71;    /** Key code constant: ']' key. */    public static final int KEYCODE_RIGHT_BRACKET   = 72;    /** Key code constant: '\' key. */    public static final int KEYCODE_BACKSLASH       = 73;    /** Key code constant: ';' key. */    public static final int KEYCODE_SEMICOLON       = 74;    /** Key code constant: ''' (apostrophe) key. */    public static final int KEYCODE_APOSTROPHE      = 75;    /** Key code constant: '/' key. */    public static final int KEYCODE_SLASH           = 76;    /** Key code constant: '@' key. */    public static final int KEYCODE_AT              = 77;    /** Key code constant: Number modifier key.     * Used to enter numeric symbols.     * This key is not Num Lock; it is more like {@link #KEYCODE_ALT_LEFT} and is     * interpreted as an ALT key by {@link android.text.method.MetaKeyKeyListener}. */    public static final int KEYCODE_NUM             = 78;    /** Key code constant: Headset Hook key.     * Used to hang up calls and stop media. */    public static final int KEYCODE_HEADSETHOOK     = 79;    /** Key code constant: Camera Focus key.     * Used to focus the camera. */    public static final int KEYCODE_FOCUS           = 80;   // *Camera* focus    /** Key code constant: '+' key. */    public static final int KEYCODE_PLUS            = 81;    /** Key code constant: Menu key. */    public static final int KEYCODE_MENU            = 82;    /** Key code constant: Notification key. */    public static final int KEYCODE_NOTIFICATION    = 83;    /** Key code constant: Search key. */    public static final int KEYCODE_SEARCH          = 84;    /** Key code constant: Play/Pause media key. */    public static final int KEYCODE_MEDIA_PLAY_PAUSE= 85;    /** Key code constant: Stop media key. */    public static final int KEYCODE_MEDIA_STOP      = 86;    /** Key code constant: Play Next media key. */    public static final int KEYCODE_MEDIA_NEXT      = 87;    /** Key code constant: Play Previous media key. */    public static final int KEYCODE_MEDIA_PREVIOUS  = 88;    /** Key code constant: Rewind media key. */    public static final int KEYCODE_MEDIA_REWIND    = 89;    /** Key code constant: Fast Forward media key. */    public static final int KEYCODE_MEDIA_FAST_FORWARD = 90;    /** Key code constant: Mute key.     * Mutes the microphone, unlike {@link #KEYCODE_VOLUME_MUTE}. */    public static final int KEYCODE_MUTE            = 91;    /** Key code constant: Page Up key. */    public static final int KEYCODE_PAGE_UP         = 92;    /** Key code constant: Page Down key. */    public static final int KEYCODE_PAGE_DOWN       = 93;    /** Key code constant: Picture Symbols modifier key.     * Used to switch symbol sets (Emoji, Kao-moji). */    public static final int KEYCODE_PICTSYMBOLS     = 94;   // switch symbol-sets (Emoji,Kao-moji)    /** Key code constant: Switch Charset modifier key.     * Used to switch character sets (Kanji, Katakana). */    public static final int KEYCODE_SWITCH_CHARSET  = 95;   // switch char-sets (Kanji,Katakana)    /** Key code constant: A Button key.     * On a game controller, the A button should be either the button labeled A     * or the first button on the upper row of controller buttons. */    public static final int KEYCODE_BUTTON_A        = 96;    /** Key code constant: B Button key.     * On a game controller, the B button should be either the button labeled B     * or the second button on the upper row of controller buttons. */    public static final int KEYCODE_BUTTON_B        = 97;    /** Key code constant: C Button key.     * On a game controller, the C button should be either the button labeled C     * or the third button on the upper row of controller buttons. */    public static final int KEYCODE_BUTTON_C        = 98;    /** Key code constant: X Button key.     * On a game controller, the X button should be either the button labeled X     * or the first button on the lower row of controller buttons. */    public static final int KEYCODE_BUTTON_X        = 99;    /** Key code constant: Y Button key.     * On a game controller, the Y button should be either the button labeled Y     * or the second button on the lower row of controller buttons. */    public static final int KEYCODE_BUTTON_Y        = 100;    /** Key code constant: Z Button key.     * On a game controller, the Z button should be either the button labeled Z     * or the third button on the lower row of controller buttons. */    public static final int KEYCODE_BUTTON_Z        = 101;    /** Key code constant: L1 Button key.     * On a game controller, the L1 button should be either the button labeled L1 (or L)     * or the top left trigger button. */    public static final int KEYCODE_BUTTON_L1       = 102;    /** Key code constant: R1 Button key.     * On a game controller, the R1 button should be either the button labeled R1 (or R)     * or the top right trigger button. */    public static final int KEYCODE_BUTTON_R1       = 103;    /** Key code constant: L2 Button key.     * On a game controller, the L2 button should be either the button labeled L2     * or the bottom left trigger button. */    public static final int KEYCODE_BUTTON_L2       = 104;    /** Key code constant: R2 Button key.     * On a game controller, the R2 button should be either the button labeled R2     * or the bottom right trigger button. */    public static final int KEYCODE_BUTTON_R2       = 105;    /** Key code constant: Left Thumb Button key.     * On a game controller, the left thumb button indicates that the left (or only)     * joystick is pressed. */    public static final int KEYCODE_BUTTON_THUMBL   = 106;    /** Key code constant: Right Thumb Button key.     * On a game controller, the right thumb button indicates that the right     * joystick is pressed. */    public static final int KEYCODE_BUTTON_THUMBR   = 107;    /** Key code constant: Start Button key.     * On a game controller, the button labeled Start. */    public static final int KEYCODE_BUTTON_START    = 108;    /** Key code constant: Select Button key.     * On a game controller, the button labeled Select. */    public static final int KEYCODE_BUTTON_SELECT   = 109;    /** Key code constant: Mode Button key.     * On a game controller, the button labeled Mode. */    public static final int KEYCODE_BUTTON_MODE     = 110;    /** Key code constant: Escape key. */    public static final int KEYCODE_ESCAPE          = 111;    /** Key code constant: Forward Delete key.     * Deletes characters ahead of the insertion point, unlike {@link #KEYCODE_DEL}. */    public static final int KEYCODE_FORWARD_DEL     = 112;    /** Key code constant: Left Control modifier key. */    public static final int KEYCODE_CTRL_LEFT       = 113;    /** Key code constant: Right Control modifier key. */    public static final int KEYCODE_CTRL_RIGHT      = 114;    /** Key code constant: Caps Lock key. */    public static final int KEYCODE_CAPS_LOCK       = 115;    /** Key code constant: Scroll Lock key. */    public static final int KEYCODE_SCROLL_LOCK     = 116;    /** Key code constant: Left Meta modifier key. */    public static final int KEYCODE_META_LEFT       = 117;    /** Key code constant: Right Meta modifier key. */    public static final int KEYCODE_META_RIGHT      = 118;    /** Key code constant: Function modifier key. */    public static final int KEYCODE_FUNCTION        = 119;    /** Key code constant: System Request / Print Screen key. */    public static final int KEYCODE_SYSRQ           = 120;    /** Key code constant: Break / Pause key. */    public static final int KEYCODE_BREAK           = 121;    /** Key code constant: Home Movement key.     * Used for scrolling or moving the cursor around to the start of a line     * or to the top of a list. */    public static final int KEYCODE_MOVE_HOME       = 122;    /** Key code constant: End Movement key.     * Used for scrolling or moving the cursor around to the end of a line     * or to the bottom of a list. */    public static final int KEYCODE_MOVE_END        = 123;    /** Key code constant: Insert key.     * Toggles insert / overwrite edit mode. */    public static final int KEYCODE_INSERT          = 124;    /** Key code constant: Forward key.     * Navigates forward in the history stack.  Complement of {@link #KEYCODE_BACK}. */    public static final int KEYCODE_FORWARD         = 125;    /** Key code constant: Play media key. */    public static final int KEYCODE_MEDIA_PLAY      = 126;    /** Key code constant: Pause media key. */    public static final int KEYCODE_MEDIA_PAUSE     = 127;    /** Key code constant: Close media key.     * May be used to close a CD tray, for example. */    public static final int KEYCODE_MEDIA_CLOSE     = 128;    /** Key code constant: Eject media key.     * May be used to eject a CD tray, for example. */    public static final int KEYCODE_MEDIA_EJECT     = 129;    /** Key code constant: Record media key. */    public static final int KEYCODE_MEDIA_RECORD    = 130;    /** Key code constant: F1 key. */    public static final int KEYCODE_F1              = 131;    /** Key code constant: F2 key. */    public static final int KEYCODE_F2              = 132;    /** Key code constant: F3 key. */    public static final int KEYCODE_F3              = 133;    /** Key code constant: F4 key. */    public static final int KEYCODE_F4              = 134;    /** Key code constant: F5 key. */    public static final int KEYCODE_F5              = 135;    /** Key code constant: F6 key. */    public static final int KEYCODE_F6              = 136;    /** Key code constant: F7 key. */    public static final int KEYCODE_F7              = 137;    /** Key code constant: F8 key. */    public static final int KEYCODE_F8              = 138;    /** Key code constant: F9 key. */    public static final int KEYCODE_F9              = 139;    /** Key code constant: F10 key. */    public static final int KEYCODE_F10             = 140;    /** Key code constant: F11 key. */    public static final int KEYCODE_F11             = 141;    /** Key code constant: F12 key. */    public static final int KEYCODE_F12             = 142;    /** Key code constant: Num Lock key.     * This is the Num Lock key; it is different from {@link #KEYCODE_NUM}.     * This key alters the behavior of other keys on the numeric keypad. */    public static final int KEYCODE_NUM_LOCK        = 143;    /** Key code constant: Numeric keypad '0' key. */    public static final int KEYCODE_NUMPAD_0        = 144;    /** Key code constant: Numeric keypad '1' key. */    public static final int KEYCODE_NUMPAD_1        = 145;    /** Key code constant: Numeric keypad '2' key. */    public static final int KEYCODE_NUMPAD_2        = 146;    /** Key code constant: Numeric keypad '3' key. */    public static final int KEYCODE_NUMPAD_3        = 147;    /** Key code constant: Numeric keypad '4' key. */    public static final int KEYCODE_NUMPAD_4        = 148;    /** Key code constant: Numeric keypad '5' key. */    public static final int KEYCODE_NUMPAD_5        = 149;    /** Key code constant: Numeric keypad '6' key. */    public static final int KEYCODE_NUMPAD_6        = 150;    /** Key code constant: Numeric keypad '7' key. */    public static final int KEYCODE_NUMPAD_7        = 151;    /** Key code constant: Numeric keypad '8' key. */    public static final int KEYCODE_NUMPAD_8        = 152;    /** Key code constant: Numeric keypad '9' key. */    public static final int KEYCODE_NUMPAD_9        = 153;    /** Key code constant: Numeric keypad '/' key (for division). */    public static final int KEYCODE_NUMPAD_DIVIDE   = 154;    /** Key code constant: Numeric keypad '*' key (for multiplication). */    public static final int KEYCODE_NUMPAD_MULTIPLY = 155;    /** Key code constant: Numeric keypad '-' key (for subtraction). */    public static final int KEYCODE_NUMPAD_SUBTRACT = 156;    /** Key code constant: Numeric keypad '+' key (for addition). */    public static final int KEYCODE_NUMPAD_ADD      = 157;    /** Key code constant: Numeric keypad '.' key (for decimals or digit grouping). */    public static final int KEYCODE_NUMPAD_DOT      = 158;    /** Key code constant: Numeric keypad ',' key (for decimals or digit grouping). */    public static final int KEYCODE_NUMPAD_COMMA    = 159;    /** Key code constant: Numeric keypad Enter key. */    public static final int KEYCODE_NUMPAD_ENTER    = 160;    /** Key code constant: Numeric keypad '=' key. */    public static final int KEYCODE_NUMPAD_EQUALS   = 161;    /** Key code constant: Numeric keypad '(' key. */    public static final int KEYCODE_NUMPAD_LEFT_PAREN = 162;    /** Key code constant: Numeric keypad ')' key. */    public static final int KEYCODE_NUMPAD_RIGHT_PAREN = 163;    /** Key code constant: Volume Mute key.     * Mutes the speaker, unlike {@link #KEYCODE_MUTE}.     * This key should normally be implemented as a toggle such that the first press     * mutes the speaker and the second press restores the original volume. */    public static final int KEYCODE_VOLUME_MUTE     = 164;    /** Key code constant: Info key.     * Common on TV remotes to show additional information related to what is     * currently being viewed. */    public static final int KEYCODE_INFO            = 165;    /** Key code constant: Channel up key.     * On TV remotes, increments the television channel. */    public static final int KEYCODE_CHANNEL_UP      = 166;    /** Key code constant: Channel down key.     * On TV remotes, decrements the television channel. */    public static final int KEYCODE_CHANNEL_DOWN    = 167;    /** Key code constant: Zoom in key. */    public static final int KEYCODE_ZOOM_IN         = 168;    /** Key code constant: Zoom out key. */    public static final int KEYCODE_ZOOM_OUT        = 169;    /** Key code constant: TV key.     * On TV remotes, switches to viewing live TV. */    public static final int KEYCODE_TV              = 170;    /** Key code constant: Window key.     * On TV remotes, toggles picture-in-picture mode or other windowing functions. */    public static final int KEYCODE_WINDOW          = 171;    /** Key code constant: Guide key.     * On TV remotes, shows a programming guide. */    public static final int KEYCODE_GUIDE           = 172;    /** Key code constant: DVR key.     * On some TV remotes, switches to a DVR mode for recorded shows. */    public static final int KEYCODE_DVR             = 173;    /** Key code constant: Bookmark key.     * On some TV remotes, bookmarks content or web pages. */    public static final int KEYCODE_BOOKMARK        = 174;    /** Key code constant: Toggle captions key.     * Switches the mode for closed-captioning text, for example during television shows. */    public static final int KEYCODE_CAPTIONS        = 175;    /** Key code constant: Settings key.     * Starts the system settings activity. */    public static final int KEYCODE_SETTINGS        = 176;    /** Key code constant: TV power key.     * On TV remotes, toggles the power on a television screen. */    public static final int KEYCODE_TV_POWER        = 177;    /** Key code constant: TV input key.     * On TV remotes, switches the input on a television screen. */    public static final int KEYCODE_TV_INPUT        = 178;    /** Key code constant: Set-top-box power key.     * On TV remotes, toggles the power on an external Set-top-box. */    public static final int KEYCODE_STB_POWER       = 179;    /** Key code constant: Set-top-box input key.     * On TV remotes, switches the input mode on an external Set-top-box. */    public static final int KEYCODE_STB_INPUT       = 180;    /** Key code constant: A/V Receiver power key.     * On TV remotes, toggles the power on an external A/V Receiver. */    public static final int KEYCODE_AVR_POWER       = 181;    /** Key code constant: A/V Receiver input key.     * On TV remotes, switches the input mode on an external A/V Receiver. */    public static final int KEYCODE_AVR_INPUT       = 182;    /** Key code constant: Red "programmable" key.     * On TV remotes, acts as a contextual/programmable key. */    public static final int KEYCODE_PROG_RED        = 183;    /** Key code constant: Green "programmable" key.     * On TV remotes, actsas a contextual/programmable key. */    public static final int KEYCODE_PROG_GREEN      = 184;    /** Key code constant: Yellow "programmable" key.     * On TV remotes, acts as a contextual/programmable key. */    public static final int KEYCODE_PROG_YELLOW     = 185;    /** Key code constant: Blue "programmable" key.     * On TV remotes, acts as a contextual/programmable key. */    public static final int KEYCODE_PROG_BLUE       = 186;    /** Key code constant: App switch key.     * Should bring up the application switcher dialog. */    public static final int KEYCODE_APP_SWITCH      = 187;    /** Key code constant: Generic Game Pad Button #1.*/    public static final int KEYCODE_BUTTON_1        = 188;    /** Key code constant: Generic Game Pad Button #2.*/    public static final int KEYCODE_BUTTON_2        = 189;    /** Key code constant: Generic Game Pad Button #3.*/    public static final int KEYCODE_BUTTON_3        = 190;    /** Key code constant: Generic Game Pad Button #4.*/    public static final int KEYCODE_BUTTON_4        = 191;    /** Key code constant: Generic Game Pad Button #5.*/    public static final int KEYCODE_BUTTON_5        = 192;    /** Key code constant: Generic Game Pad Button #6.*/    public static final int KEYCODE_BUTTON_6        = 193;    /** Key code constant: Generic Game Pad Button #7.*/    public static final int KEYCODE_BUTTON_7        = 194;    /** Key code constant: Generic Game Pad Button #8.*/    public static final int KEYCODE_BUTTON_8        = 195;    /** Key code constant: Generic Game Pad Button #9.*/    public static final int KEYCODE_BUTTON_9        = 196;    /** Key code constant: Generic Game Pad Button #10.*/    public static final int KEYCODE_BUTTON_10       = 197;    /** Key code constant: Generic Game Pad Button #11.*/    public static final int KEYCODE_BUTTON_11       = 198;    /** Key code constant: Generic Game Pad Button #12.*/    public static final int KEYCODE_BUTTON_12       = 199;    /** Key code constant: Generic Game Pad Button #13.*/    public static final int KEYCODE_BUTTON_13       = 200;    /** Key code constant: Generic Game Pad Button #14.*/    public static final int KEYCODE_BUTTON_14       = 201;    /** Key code constant: Generic Game Pad Button #15.*/    public static final int KEYCODE_BUTTON_15       = 202;    /** Key code constant: Generic Game Pad Button #16.*/    public static final int KEYCODE_BUTTON_16       = 203;    /** Key code constant: Language Switch key.     * Toggles the current input language such as switching between English and Japanese on     * a QWERTY keyboard.  On some devices, the same function may be performed by     * pressing Shift+Spacebar. */    public static final int KEYCODE_LANGUAGE_SWITCH = 204;    /** Key code constant: Manner Mode key.     * Toggles silent or vibrate mode on and off to make the device behave more politely     * in certain settings such as on a crowded train.  On some devices, the key may only     * operate when long-pressed. */    public static final int KEYCODE_MANNER_MODE     = 205;    /** Key code constant: 3D Mode key.     * Toggles the display between 2D and 3D mode. */    public static final int KEYCODE_3D_MODE         = 206;    /** Key code constant: Contacts special function key.     * Used to launch an address book application. */    public static final int KEYCODE_CONTACTS        = 207;    /** Key code constant: Calendar special function key.     * Used to launch a calendar application. */    public static final int KEYCODE_CALENDAR        = 208;    /** Key code constant: Music special function key.     * Used to launch a music player application. */    public static final int KEYCODE_MUSIC           = 209;    /** Key code constant: Calculator special function key.     * Used to launch a calculator application. */    public static final int KEYCODE_CALCULATOR      = 210;