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Commit b9ce4d03 authored by Annie Chin's avatar Annie Chin
Browse files

Use CopyOnWriteArrayList for mDragCallbacks. 

Bug: 33396891

Needs to be combined with a touch fix; this alone will solve crashing,
but not freezing.

Change-Id: Ifab9ef779d00c8a9b59f231fce330ae8fc41528c
parent 8e367265

src/com/android/calculator2/DragLayout.java

+3 −2
Original line number Diff line number Diff line
@@ -27,8 +27,8 @@ import android.view.View; 
import android.widget.FrameLayout;

import android.widget.RelativeLayout;



import java.util.ArrayList;

import java.util.List;

import java.util.concurrent.CopyOnWriteArrayList;



public class DragLayout extends RelativeLayout {
@@ -40,7 +40,8 @@ public class DragLayout extends RelativeLayout { 
    private FrameLayout mHistoryFrame;

    private ViewDragHelper mDragHelper;



    private final List<DragCallback> mDragCallbacks = new ArrayList<>();

    // No concurrency; allow modifications while iterating.

    private final List<DragCallback> mDragCallbacks = new CopyOnWriteArrayList<>();

    private CloseCallback mCloseCallback;



    private int mDraggingState = ViewDragHelper.STATE_IDLE;