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Commit d0c73d63 authored by Jeff Sharkey's avatar Jeff Sharkey
Browse files

Only deliver latest WIFI_DISPLAY_STATUS_CHANGED. 

We've heard reports of apps getting confused about hearing thrashing
WIFI_DISPLAY_STATUS_CHANGED broadcasts when they're thawed.  To
mitigate this, only deliver the latest instance of the broadcast,
replacing any stale broadcasts.

Bug: 273923757
Test: manual
Change-Id: Ie8e4a7213f7b4838b33fdc6cf4ccca9520ad49f9
parent 3f88c155

services/core/java/com/android/server/display/WifiDisplayAdapter.java

+6 −1
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 


package com.android.server.display;



import android.app.BroadcastOptions;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;
@@ -421,6 +422,7 @@ final class WifiDisplayAdapter extends DisplayAdapter { 
    // Runs on the handler.

    private void handleSendStatusChangeBroadcast() {

        final Intent intent;

        final BroadcastOptions options;

        synchronized (getSyncRoot()) {

            if (!mPendingStatusChangeBroadcast) {

                return;
@@ -431,10 +433,13 @@ final class WifiDisplayAdapter extends DisplayAdapter { 
            intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);

            intent.putExtra(DisplayManager.EXTRA_WIFI_DISPLAY_STATUS,

                    getWifiDisplayStatusLocked());



            options = BroadcastOptions.makeBasic();

            options.setDeliveryGroupPolicy(BroadcastOptions.DELIVERY_GROUP_POLICY_MOST_RECENT);

        }



        // Send protected broadcast about wifi display status to registered receivers.

        getContext().sendBroadcastAsUser(intent, UserHandle.ALL);

        getContext().sendBroadcastAsUser(intent, UserHandle.ALL, null, options.toBundle());

    }



    private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {