神秘

package com.example.studioviewpagerdemo01;

import android.content.Intent;
import android.content.SharedPreferences;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    private SharedPreferences.Editor edit;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
       ViewPager vp= (ViewPager) findViewById(R.id.vp);
        vp.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {
            @Override
            public Fragment getItem(int position) {
                Fragment fragment=null;
                switch (position){
                    case 0:
                        fragment=new Fragmen0();
                        break;
                    case 1:
                        fragment=new Fragmen01();
                        break;
                    case 2:
                        fragment=new Fragmen02();
                        break;
                }
                return fragment;
            }

            @Override
            public int getCount() {
                return 3;
            }
        });
        SharedPreferences da = getSharedPreferences("da", MODE_PRIVATE);
        edit = da.edit();
        if (da.getBoolean("w",true)){
            edit.putBoolean("w",false);
            edit.commit();
           // View view = View.inflate(MainActivity.this, R.layout.fragment2, null);

        }else{
            Intent intent = new Intent(MainActivity.this, Zhuye.class);
            startActivity(intent);
            finish();
        }
    }
}