//一打开程序默认就是读者Fragment

public class MainActivity extends SlidingFragmentActivity{

    //改为Public

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        requestWindowFeature(Window.FEATURE_NO_TITLE);

        setContentView(R.layout.activity_main);//把主布局设置为空布局(FrameLayout)

        setBehindContentView(R.layout.left_menu);//把左侧边栏布局设置为空布局

        SlidingMenu slidingMenu = getSlidingMenu();

        //设置触摸模式为全屏触摸

        slidingMenu.setTouchModeAbove(SlidingMenu.TOUCHMODE_FULLSCREEN);

        //设置预留屏幕的宽度为110dp

        slidingMenu.setBehindOffset(SizeUtils.dip2px(MainActivity.this, 110));

        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();

        //把左侧菜单的空布局替换成Fragment，注意，一定是用R.id，即FrameLayout的ID

        //而不是R.layout，不是布局文件的ID

        transaction.replace(R.id.left_menu, new FragmentLeft());

        //把主内容的空FrameLayout的ID替换成读者Fragment

        transaction.replace(R.id.activity_main, new ReaderFragment(MainActivity.this));

        transaction.commit();

    }

}

/**左侧菜单的Fragment,在左侧菜单Fragment里面处理点击事件*/

public class FragmentLeft extends Fragment implements OnClickListener {

    private View view;

    @Override

    public View onCreateView(LayoutInflater inflater, ViewGroup container,

            Bundle savedInstanceState) {

        view = View.inflate(getActivity(), R.layout.left_menu_fragment, null);

        initView();

        return view;

    }

    private void initView() {

        //左侧菜单的读者

        TextView tv_duzhe= (TextView) view.findViewById(R.id.tv_duzhe);

        //左侧菜单的充值

        TextView tv_pay= (TextView) view.findViewById(R.id.tv_pay);

        //左侧菜单的收藏

        TextView tv_collect= (TextView) view.findViewById(R.id.tv_collect);

        tv_duzhe.setOnClickListener(this);

        tv_pay.setOnClickListener(this);

        tv_collect.setOnClickListener(this);

    }

    @Override

    public void onClick(View v) {

        //获取SlidingMenu

        SlidingFragmentActivity activity= (SlidingFragmentActivity)getActivity();

        SlidingMenu slidingMenu = activity.getSlidingMenu();

        switch (v.getId()) {

        case R.id.tv_duzhe:

            ReaderFragment readerFragment = new ReaderFragment(getActivity());

            getActivity().getSupportFragmentManager()

                            .beginTransaction().replace(R.id.activity_main, readerFragment).commit();

            slidingMenu.toggle();

            break;

        case R.id.tv_pay:

            //当每次点击充值时，就用充值Fragment替换主布局，主布局就是一个FrameLayout

            PayFragment payFragment = new PayFragment(getActivity());

            getActivity().getSupportFragmentManager().

                        beginTransaction().replace(R.id.activity_main, payFragment).commit();

            //Fragment替换之后，就关闭侧边栏

            slidingMenu.toggle();//如果侧边栏是打开的，就关闭，反之亦然

            break;

        case R.id.tv_collect:
　　　　　　　//收藏Fragment

            getActivity().getSupportFragmentManager().beginTransaction().

                            replace(R.id.activity_main, new CollectFragment(getActivity())).commit();

            slidingMenu.toggle();

            break;

        default:

            break;

        }

    }

}

/**读者的Fragment*/

public class ReaderFragment extends Fragment {

    private Context context;

    /**由于ReaderFragment是依附于侧边栏Fragment的，所以不能用getActivity（）来获取上下文，必须传过来*/

    public ReaderFragment(Context context){

        this.context=context;

    }

    @Override

    public View onCreateView(LayoutInflater inflater, ViewGroup container,

            Bundle savedInstanceState) {

        System.out.println("读者Fragment");

        View view = View.inflate(context, R.layout.fragment_duzhe, null);

        return view;

    }

}