RecyclerView设置最大高度

public class MaxHeightRecyclerView extends RecyclerView {

    private int mHeight;

    public MaxHeightRecyclerView(@NonNull Context context) {
        super(context);
    }

    public MaxHeightRecyclerView(@NonNull Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
    }

    public MaxHeightRecyclerView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    public void setMaxHeight(int height) {
        mHeight = height;
        invalidate();
    }

    private void initAttr(Context context, AttributeSet attrs, int defStyle) {
        final TypedArray appearance = context.obtainStyledAttributes(attrs, R.styleable.MaxHeightRecyclerView, defStyle, 0);
        mHeight = appearance.getDimensionPixelSize(R.styleable.MaxHeightRecyclerView_rv_max_height, 0);
    }

    @Override
    protected void onMeasure(int widthSpec, int heightSpec) {
        if(mHeight > 0) {
            heightSpec = MeasureSpec.makeMeasureSpec(mHeight, MeasureSpec.AT_MOST);
        }
        super.onMeasure(widthSpec, heightSpec);
    }
}