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Commit 63e224f6 authored by Treehugger Robot's avatar Treehugger Robot Committed by Automerger Merge Worker
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Merge "Clarify that `Message#what` is 0 unless otherwise set." into main am: 14a533a8 

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3250153



Change-Id: I3aa059317fadab9a204338d57b91b973fd7668a1
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents 137ea514 14a533a8

core/java/android/os/Handler.java

+6 −0
Original line number Diff line number Diff line
@@ -798,6 +798,12 @@ public class Handler { 
    /**

     * Remove any pending posts of messages with code 'what' that are in the

     * message queue.

     *

     * Note that `Message#what` is 0 unless otherwise set.

     * When calling `postMessage(Runnable)` or `postAtTime(Runnable, long)`,

     * the `Runnable` is internally wrapped with a `Message` whose `what` is 0.

     * Calling `removeMessages(0)` will remove all messages without a `what`,

     * including posted `Runnable`s.

     */

    public final void removeMessages(int what) {

        mQueue.removeMessages(this, what, null);

core/java/android/os/Message.java

+3 −0
Original line number Diff line number Diff line
@@ -41,6 +41,9 @@ public final class Message implements Parcelable { 
     * what this message is about. Each {@link Handler} has its own name-space

     * for message codes, so you do not need to worry about yours conflicting

     * with other handlers.

     *

     * If not specified, this value is 0.

     * Use values other than 0 to indicate custom message codes.

     */

    public int what;