Android基于ViewPager+Fragment如何实现左右滑屏效果

<android.support.v4.view.ViewPager
android:id="@+id/local_software_viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#78A7A1F1"
/>

<fragment android:name="cn.edu.gzu.BackPP.Fragment.AllSoftwareFragment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>

import cn.edu.gzu.BackPP.activities.R;
import android.support.v4.app.Fragment;
public class UserSoftwareFragment extends Fragment {
  private RelativeLayout loadingLayout;
  @Override
  public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    //相关逻辑处理部分
  }
  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    //布局文件适配部分
    View view=inflater.inflate(R.layout.fragment_user_software_manager, null);
    softList=(ListView) view.findViewById(R.id.fragment_user_software_listv);
    loadingLayout=(RelativeLayout) view.findViewById(R.id.user_loading_rlayout);
    return view;
  }
}

import java.util.ArrayList;
import cn.edu.gzu.BackPP.Fragment.AllSoftwareFragment;
import cn.edu.gzu.BackPP.Fragment.UserSoftwareFragment;
import cn.edu.gzu.BackPP.adapter.MyFragmentAdapter;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
public class LocalSoftwareManagerActivity extends FragmentActivity{
  private ViewPager viewPager;
  private Fragment allsoftFrag;
  private Fragment usersoftFrag;
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_local_software_manager);
    findViewById();
  }
  private void findViewById(){
    viewPager=(ViewPager) findViewById(R.id.local_software_viewpager);
    initFragment();
  }
  private void initFragment(){
    ArrayList<Fragment> mFragments=new ArrayList<Fragment>();
    allsoftFrag=new AllSoftwareFragment();
    usersoftFrag=new UserSoftwareFragment();
    mFragments.add(allsoftFrag);
    mFragments.add(usersoftFrag);
    viewPager.setAdapter(new MyFragmentAdapter(getSupportFragmentManager(),mFragments));
    viewPager.setCurrentItem(0);
    viewPager.setOnPageChangeListener(new OnPageChangeListener() {
      @Override
      public void onPageSelected(int arg0) {
        switch(arg0){
        case 0:
          //滑动至第一页处理逻辑
          break;
        case 1:
          //滑动至第二页处理逻辑
          break;
        }
      }
      @Override
      public void onPageScrolled(int arg0, float arg1, int arg2) {
      }
      @Override
      public void onPageScrollStateChanged(int arg0) {
      }
    });
  }
}