Android API Guides 之 App Manifest（2） - <action>

<action>

SYNTAX:

<action android:name="string" />

CONTAINED IN:

<intent-filter>

DESCRIPTION:Adds an action to an intent filter. An 

<intent-filter>

 element
must contain one or more 

<action>

elements. If it doesn't contain any, no Intent objects will get through the filter. See Intents
and Intent Filtersfor details on intent filters and the role of action specifications within a filter.ATTRIBUTES:

android:name

The name of the action. Some standard actions are defined in the 

Intent

 class
as 

ACTION_string

constants. To assign one of these actions to this attribute, prepend "

android.intent.action.

"
to the 

string

 that follows 

ACTION_

. For example, for 

ACTION_MAIN

,
use "

android.intent.action.MAIN

" and for 

ACTION_WEB_SEARCH

, use "

android.intent.action.WEB_SEARCH

".
For actions you define, it's best to use the package name as a prefix to ensure uniqueness. For example, a 

TRANSMOGRIFY

 action might be
specified as follows:

<action android:name="com.example.project.TRANSMOGRIFY" />

INTRODUCED IN:API Level 1SEE ALSO:

<intent-filter>