点击切换布局

private SharedPreferences sp;
获得SharedPreferences 对象
sp = getSharedPreferences("isTruc", MODE_PRIVATE);

点击监听

public void classifyClick() {
        boolean flag = sp.getBoolean("flag", true);
        if (flag) {
            mRecycleView.setLayoutManager(new LinearLayoutManager(MainActivity.this));
            initData();
            mRecycleView.setAdapter(new SearchAdapter(MainActivity.this, dataList));
            sp.edit().putBoolean("flag", false).commit();
        } else {
            mRecycleView.setLayoutManager(new GridLayoutManager(MainActivity.this, 2));
            initData();
            mRecycleView.setAdapter(new GridAdapter(MainActivity.this, dataList));
            sp.edit().putBoolean("flag", true).commit();
        }

    }