diff --git a/api/current.txt b/api/current.txt
index 415ce7c85a0d6..7d7c2cbf3a411 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -9100,6 +9100,7 @@ package android.content {
     field public static final java.lang.String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
     field public static final java.lang.String EXTRA_PROCESS_TEXT = "android.intent.extra.PROCESS_TEXT";
     field public static final java.lang.String EXTRA_PROCESS_TEXT_READONLY = "android.intent.extra.PROCESS_TEXT_READONLY";
+    field public static final java.lang.String EXTRA_QUICK_VIEW_PLAIN = "android.intent.extra.QUICK_VIEW_PLAIN";
     field public static final java.lang.String EXTRA_QUIET_MODE = "android.intent.extra.QUIET_MODE";
     field public static final java.lang.String EXTRA_REFERRER = "android.intent.extra.REFERRER";
     field public static final java.lang.String EXTRA_REFERRER_NAME = "android.intent.extra.REFERRER_NAME";
diff --git a/api/system-current.txt b/api/system-current.txt
index 4c194d762e54a..28c1665b3c7ec 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -9516,6 +9516,7 @@ package android.content {
     field public static final java.lang.String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
     field public static final java.lang.String EXTRA_PROCESS_TEXT = "android.intent.extra.PROCESS_TEXT";
     field public static final java.lang.String EXTRA_PROCESS_TEXT_READONLY = "android.intent.extra.PROCESS_TEXT_READONLY";
+    field public static final java.lang.String EXTRA_QUICK_VIEW_PLAIN = "android.intent.extra.QUICK_VIEW_PLAIN";
     field public static final java.lang.String EXTRA_QUIET_MODE = "android.intent.extra.QUIET_MODE";
     field public static final java.lang.String EXTRA_REFERRER = "android.intent.extra.REFERRER";
     field public static final java.lang.String EXTRA_REFERRER_NAME = "android.intent.extra.REFERRER_NAME";
diff --git a/api/test-current.txt b/api/test-current.txt
index 244bee3fce395..bf613c61f224f 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -9126,6 +9126,7 @@ package android.content {
     field public static final java.lang.String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
     field public static final java.lang.String EXTRA_PROCESS_TEXT = "android.intent.extra.PROCESS_TEXT";
     field public static final java.lang.String EXTRA_PROCESS_TEXT_READONLY = "android.intent.extra.PROCESS_TEXT_READONLY";
+    field public static final java.lang.String EXTRA_QUICK_VIEW_PLAIN = "android.intent.extra.QUICK_VIEW_PLAIN";
     field public static final java.lang.String EXTRA_QUIET_MODE = "android.intent.extra.QUIET_MODE";
     field public static final java.lang.String EXTRA_REFERRER = "android.intent.extra.REFERRER";
     field public static final java.lang.String EXTRA_REFERRER_NAME = "android.intent.extra.REFERRER_NAME";
diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index 111b4d6efa6e9..3ecf0bbfd90e2 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -668,7 +668,14 @@ public class Intent implements Parcelable, Cloneable {
      * preview. {@link #getClipData} contains an optional list of content URIs
      * if there is more than one item to preview. {@link #EXTRA_INDEX} is an
      * optional index of the URI in the clip data to show first.
+     * If {@link #EXTRA_QUICK_VIEW_PLAIN} is true, then the quick viewer should show
+     * basic UI without any extra features other than quick viewing the passed items.
+     * Especially, the quick viewer should not let users open the passed files
+     * in other apps, which includes sharing, opening, editing, printing, etc in the
+     * plain mode.
      * <p>Output: nothing.
+     * @see #EXTRA_QUICK_VIEW_HIDE_DEFAULT_ACTIONS
+     * @see #EXTRA_INDEX
      */
     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
     public static final String ACTION_QUICK_VIEW = "android.intent.action.QUICK_VIEW";
@@ -4393,9 +4400,25 @@ public class Intent implements Parcelable, Cloneable {
      * Optional index with semantics depending on the intent action.
      *
      * <p>The value must be an integer greater or equal to 0.
+     * @see ACTION_QUICK_VIEW
      */
     public static final String EXTRA_INDEX = "android.intent.extra.INDEX";
 
+    /**
+     * Shows a plain quick viewer UI which doesn't provide any extra features other than
+     * quick viewing the items.
+     *
+     * <p>Especially, the quick viewer should not let users open the quick viewed files
+     * in other apps, which includes sharing, opening, editing, printing, etc.
+     *
+     * <p>This feature is optional, and may not be handled by all quick viewers.
+     *
+     * <p>The value is boolean. By default false.
+     * @see ACTION_QUICK_VIEW
+     */
+    public static final String EXTRA_QUICK_VIEW_PLAIN =
+            "android.intent.extra.QUICK_VIEW_PLAIN";
+
     /**
      * Optional boolean extra indicating whether quiet mode has been switched on or off.
      * When a profile goes into quiet mode, all apps in the profile are killed and the