Add new ContentProvider for doing conversions to data streams.
This introduces basic infrastructure that should allow content
providers holding complex data to perform on-demand conversion
of their data to streams of various types. It is achieved through
two new content provider APIs, one to interrogate the possible
stream MIME types the provider can return, and the other to
request a stream of data in a particular MIME type.
Because implementations of this will often need to do on-demand
data conversion, there is also a utility intoduced in ContentProvider
for subclasses to easily run a function to write data into a
pipe that is read by the client.
This feature is mostly intended for cut and paste and drag and
drop, as the complex data interchange allowing the source and
destination to negotiate data types and copy (possible large)
data between them. However because it is fundamental facility
of ContentProvider, it can be used in other places, such as for
more advanced GET_CONTENT data exchanges.
An example implementation of this would be in ContactsProvider,
which can now provider a data stream when a client opens certain
pieces of it data, to return data as flat text, a vcard, or other
format.
Change-Id: I58627ea4ed359aa7cf2c66274adb18306c209cb2
diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index 2acc4a0..58174fb 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -985,6 +985,15 @@
@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
public static final String ACTION_INSERT = "android.intent.action.INSERT";
/**
+ * Activity Action: Create a new item in the given container, initializing it
+ * from the current contents of the clipboard.
+ * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
+ * in which to place the data.
+ * <p>Output: URI of the new data that was created.
+ */
+ @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
+ public static final String ACTION_PASTE = "android.intent.action.PASTE";
+ /**
* Activity Action: Delete the given data from its container.
* <p>Input: {@link #getData} is URI of data to be deleted.
* <p>Output: nothing.