Viewpager價值並沒有改變

比方說這是用戶選擇，他希望看到Viewpager價值並沒有改變

lv.setOnItemClickListener(new OnItemClickListener(
       ) { 
        @Override 
        public void onItemClick(AdapterView<?> arg0, View arg1, 
          int position, long arg3) { 
         SharedPreferences preferences = getSharedPreferences("myprefs", Context.MODE_PRIVATE); 
         SharedPreferences.Editor editor = preferences.edit(); 
         editor.putInt("Position_content",position); 
         editor.commit(); 
         Intent newpage = new Intent(getApplicationContext(),MainActivity.class);  
         startActivity(newpage); 
         }});

的頁面開始頁面，這是我Mainactivity.class

public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     ViewPager pager = (ViewPager) findViewById(R.id.pager); 
     FragmentManager fm = getSupportFragmentManager(); 
     MyFragmentPagerAdapter pagerAdapter = new MyFragmentPagerAdapter(fm); 
     pager.setAdapter(pagerAdapter); 
     sharedPref = getSharedPreferences("myprefs", Context.MODE_PRIVATE); 
     content_selection_page = sharedPref.getInt("Position_content",0); 
     SharedPreferences preferences = getSharedPreferences("myprefs", Context.MODE_PRIVATE); 
     SharedPreferences.Editor editor = preferences.edit(); 
     editor.putInt("final_Position_content",content_selection_page); 
     editor.commit(); }

這是MyFragmentAdapter.java

public class MyFragmentPagerAdapter extends FragmentPagerAdapter{ 
    public static final String PREFS_NAME = "MyPrefsFile"; 
    final int PAGE_COUNT = 52; 

    public MyFragmentPagerAdapter(FragmentManager fm) { 
     super(fm); } 

    @Override 
    public Fragment getItem(int arg0) {  
     MyFragment myFragment = new MyFragment(); 
     Bundle data = new Bundle(); 
     data.putInt("current_page", arg0+1); 
     myFragment.setArguments(data); 
     return myFragment; 
    } 
    @Override 
    public int getCount() {  
     return PAGE_COUNT; 
    } 

    @Override 
    public CharSequence getPageTitle(int position) {   
     return "Page " + (position + 1); 
    } 

}

這是Fragment.java

public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     Bundle data = getArguments(); 
     //** Getting integer data of the key current_page from the bundle *//* 
     mCurrentPage = data.getInt("current_page", 0); 
     sharedPref = this.getActivity().getSharedPreferences("myprefs", Context.MODE_PRIVATE); 
     content_selection_page = sharedPref.getInt("final_Position_content",0); 
    } 
    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
     View v = inflater.inflate(R.layout.myfragment_layout, container,false);    
     TextView sub = (TextView) v.findViewById(R.id.sub1); 
     TextView sub1 = (TextView) v.findViewById(R.id.sub2); 
     TextView hd = (TextView) v.findViewById(R.id.head); 
     content_selection_page++; //doesnt work 


     switch(content_selection_page){ 
       switch stmts..... 
       } 
       return v; 
       }

真正的問題現在的問題是用戶通過列表中選擇一個的選擇和位置一定要在fragment.java現在viewpager似乎沒有工作在開關盒。假設如果我點擊列表項目4它帶我到第3頁，當我滑動它的幻燈片但它仍然在同一頁面，我如何使它，如果我滑動一次，它必須每次增加頁面。 Diagramatically 的內容2我不斷收到內容，而不是1

來源

2013-06-12 jayeshkv

Viewpager價值並沒有改變

回答

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