Implement IRecentTasksListener.onRunningTaskChanged()

Bug: 332504528
Test: N/A
Flag: NA
Change-Id: I7c98eb524bb7544a715f5b8226d3c28d05f72913

quickstep/src/com/android/quickstep/RecentTasksList.java

@@ -97,6 +97,13 @@ public class RecentTasksList {
                     RecentTasksList.this.onRunningTaskVanished(taskInfo);
                 });
             }
+
+            @Override
+            public void onRunningTaskChanged(ActivityManager.RunningTaskInfo taskInfo) {
+                mMainThreadExecutor.execute(() -> {
+                    RecentTasksList.this.onRunningTaskChanged(taskInfo);
+                });
+            }
         });
         // We may receive onRunningTaskAppeared events later for tasks which have already been
         // included in the list returned by mSysUiProxy.getRunningTasks(), or may receive
@@ -244,6 +251,20 @@ public class RecentTasksList {
         }
     }
 
+    private void onRunningTaskChanged(ActivityManager.RunningTaskInfo taskInfo) {
+        // Find the task from the list of running tasks, if it exists
+        for (ActivityManager.RunningTaskInfo existingTask : mRunningTasks) {
+            if (existingTask.taskId != taskInfo.taskId) continue;
+
+            mRunningTasks.remove(existingTask);
+            mRunningTasks.add(taskInfo);
+            if (mRunningTasksListener != null) {
+                mRunningTasksListener.onRunningTasksChanged();
+            }
+            return;
+        }
+    }
+
     /**
      * Loads and creates a list of all the recent tasks.
      */
@@ -390,4 +411,4 @@ public class RecentTasksList {
             return mRequestId == requestId && (!mKeysOnly || loadKeysOnly);
         }
     }
-}
+}