Activity中的setDefaultKeyMode()

如果在Activity中的onCreate()方法中使用setDefaultKeyMode()可以做到在当前activity中打开拨号器、执行快捷键、启动本地搜索、启动全局搜索。

这个启动啥，要看setDefaultKeyMode中传了啥参数，不同的参数见下：

/**
* Use with {@link #setDefaultKeyMode} to turn off default handling of
* keys.
*
* @see #setDefaultKeyMode
*/
static public final int DEFAULT_KEYS_DISABLE = 0; //如果设为这个，则在activity中按键的不做响应
/**
* Use with {@link #setDefaultKeyMode} to launch the dialer during default
* key handling.
*
* @see #setDefaultKeyMode
*/
static public final int DEFAULT_KEYS_DIALER = 1; //如果设为这个，则在activity中按键会打开拨号器

/**
* Use with {@link #setDefaultKeyMode} to execute a menu shortcut in
* default key handling.
*
* <p>That is, the user does not need to hold down the menu key to execute menu shortcuts.
*
* @see #setDefaultKeyMode
*/
static public final int DEFAULT_KEYS_SHORTCUT = 2; //如果设为这个，则在activity中按键会启动快键键
/**
* Use with {@link #setDefaultKeyMode} to specify that unhandled keystrokes
* will start an application-defined search.  (If the application or activity does not
* actually define a search, the the keys will be ignored.)
*
* <p>See {@link android.app.SearchManager android.app.SearchManager} for more details.
*
* @see #setDefaultKeyMode
*/
static public final int DEFAULT_KEYS_SEARCH_LOCAL = 3; //如果设为这个，则在activity中按键会打开本地搜索

/**
* Use with {@link #setDefaultKeyMode} to specify that unhandled keystrokes
* will start a global search (typically web search, but some platforms may define alternate
* methods for global search)
*
* <p>See {@link android.app.SearchManager android.app.SearchManager} for more details.
*
* @see #setDefaultKeyMode
*/
static public final int DEFAULT_KEYS_SEARCH_GLOBAL = 4; //如果设为这个，则在activity中按键会打开全局搜索

转自http://blog.csdn.net/huigezhang/article/details/6795511