android 實現類似qq未讀訊息點選迴圈顯示

public void jumpUnread(boolean cycle) {
    List<ContactLogModel> dataList = adapter.getContactLogModelList();
    int dataSize = dataList.size();

    int position = 0;
    if (cycle) {
        position = 0;
    } else {
        position = ListView().getFirstVisiblePosition();
    }
    ConfigInfo.logDebug(TAG, "1 .......... get view first item pos:" + position);

    for (int i = position; i < dataSize; i++) {
        position++;
        ConfigInfo.logDebug(TAG, "2 ..........mode detail" + dataList.get(i).getUname() + ".....i" + i);
        if (dataList.get(i).getUnread() > 0) {  // 未讀處理
            ListView.setSelection(position);
            ConfigInfo.logDebug(TAG, "4 .............position" + position);
            return;
        }
    }

    if (position > 0) {
        jumpUnread(true);
    }
}

public void jumpUnread() {

    List<ContactLogModel> dataList = adapter.getContactLogModelList();
    int position = mPtrFrameLayout.getListView().getFirstVisiblePosition();
    ConfigInfo.logDebug(TAG, "1 .......... get view first item pos:" + position);
    for (int i = position; i < adapter.getCount(); i++) {
        ConfigInfo.logDebug(TAG, "2 ..........mode detail" + dataList.get(i).getUname() + ".....i" + i);
        if (dataList.get(i).getUnread() > 0) {  // 未讀處理
            if(isListViewReachBottomEdge(mPtrFrameLayout.getListView())){
                reJumpUnread();
            }else{
                mPtrFrameLayout.getListView().setSelection(i + 1);
            }
            ConfigInfo.logDebug(TAG, "4 .............position" + position);
            return;
        }
    }
    reJumpUnread();
}


public void reJumpUnread() {
    for (int i = 0; i < adapter.getCount(); i++) {
        if (adapter.getItem(i).getUnread() > 0) {  // 未讀處理
            mPtrFrameLayout.getListView().setSelection(i + 1);
            return;
        }
    }
}


public boolean isListViewReachBottomEdge(final AbsListView listView) {
    boolean result = false;
    if (listView.getLastVisiblePosition() == (listView.getCount() - 1)) {
        final View bottomChildView = listView.getChildAt(listView.getLastVisiblePosition() - listView.getFirstVisiblePosition());
        result = (listView.getHeight() >= bottomChildView.getBottom());
        ConfigInfo.logDebug(TAG,"..............."+result);
    };
    return result;
}