[問題] IndexOutOfBoundsException RecyclerView

[freedom74569 (莫急莫慌莫害怕)]

IndexOutOfBoundsException in RecyclerView triggered
                                        on runOnUiThread(new Runnable()
錯誤訊息
FATAL EXCEPTION: main java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid item position 8(offset:8).state:9
android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4405)
android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4363)
android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1961)
android.support.v7.widget.GridLayoutManager.layoutChunk(GridLayoutManager.java:458)
android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1333)
android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:562)
android.support.v7.widget.GridLayoutManager.onLayoutChildren(GridLayoutManager.java:171)

Code內容大致上
public BluetoothAdapter.LeScanCallback mLeScanCallback = new BluetoothAdapter.LeScanCallback() {
        @Override
        public synchronized void onLeScan(final BluetoothDevice device, final int rssi, final byte[] scanRecord) {
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    synchronized (this) {
                        String deviceName = device.getName();
                            if (XXX) {
                                XXX
                            } else {
                                XXX
                            }
                        mRecyclerView_RollCall.postDelayed(new Runnable() {
                            @Override
                            public void run() {
                                mRecyclerViewAdapter.notifyDataSetChanged();
                            }
                        }, 1000);
                    }
                }
            });
        }
    };

找過的一些Solution
https://code.google.com/p/android/issues/detail?id=77846
https://code.google.com/p/android/issues/detail?id=77232

我有找了很多Solution不過沒辦法解決問題，麻煩懂得大大可以給點建議！
很多大部分是，下拉刷新，不過我是需要一直更新RecyclerView上的item，
增加或是刪除item已經有另一個線程用ArrayList做了，一開始都可以正常的使用，
過一下後，就會出現這個Excetion!

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→ KeySabre: 可能調整一下notifyDataSetChanged的方式
→ KeySabre: 另外不知道為何要synchronized那個runnable instance
→ KeySabre: getDeviceName跟XXX那段如果跟UI都無關 可以不用post
→ y3k: 有用Log檢查過ArrayList的大小嗎
→感謝K大大跟y大大 是我程式邏輯的問題～我調整了notifyDataSetChange的方式
※ 編輯: freedom74569 (36.225.167.206), 12/16/2015 10:55:37