Android java。lang.NoSuchMethodError

Question

我是安卓新手，我犯了以下错误

java.lang.NoSuchMethodError:安卓.support.v7.widget.RecyclerView.getChildAdapterPosition

这是我在出错之前添加的代码

Paint paint = new Paint();
paint.setStrokeWidth(5);
paint.setColor(Color.BLUE);
paint.setAntiAlias(true);
paint.setPathEffect(new DashPathEffect(new float[]{25.0f, 25.0f}, 0));
recyclerView.addItemDecoration(
            new HorizontalDividerItemDecoration.Builder(getActivity()).paint(paint).build());

我应该用什么进口货

Answer 1

在你的身材里。gradle加上这一行：

compile 'com.android.support:recyclerview-v7:22.2.0'

参见here如何使用RecyclerView