使用FragmentStatePagerAdapter android在SlidingTabLayout viewpager中同时调用两个片段时出现问题

朋友们好，我有SlidingTabLayout viewpager，下面是我的代码

main.xml

<slider.SlidingTabLayout
                    android:id="@+id/tabs"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:background="@color/colorPrimary" />

                <android.support.v4.view.ViewPager
                    android:id="@+id/pager"
                    android:layout_width="match_parent"
                    android:layout_below="@+id/tabs"
                    android:layout_height="match_parent"
                    android:layout_weight="1">

                </android.support.v4.view.ViewPager>

}

ViewPagerAdapter.java

public class MainActivity extends AppCompatActivity {

// Declaring Your View and Variables
private Toolbar toolbar;
private ViewPager pager;
private ViewPagerAdapter adapter;
private SlidingTabLayout tabs;
private CharSequence Titles[] = {"Calls", "Chats", "Contacts" };
int Numboftabs = 3;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // Creating The Toolbar and setting it as the Toolbar for the activity

    toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    // getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setIcon(R.drawable.ic_launcher);

    // Creating The ViewPagerAdapter and Passing Fragment Manager, Titles
    // fot the Tabs and Number Of Tabs.
    adapter = new ViewPagerAdapter(getSupportFragmentManager(), Titles,
            Numboftabs);

    // Assigning ViewPager View and setting the adapter
    pager = (ViewPager) findViewById(R.id.pager);
    pager.setAdapter(adapter);

    // Assiging the Sliding Tab Layout View
    tabs = (SlidingTabLayout) findViewById(R.id.tabs);
    tabs.setDistributeEvenly(true);
    tabs.setViewPager(pager);
}

public class ViewPagerAdapter extends FragmentStatePagerAdapter {

CharSequence Titles[];
int NumbOfTabs;

public ViewPagerAdapter(FragmentManager fm, CharSequence mTitles[],
                        int mNumbOfTabsumb) {
    super(fm);
    this.Titles = mTitles;
    this.NumbOfTabs = mNumbOfTabsumb;
}

// This method return the fragment for the every position in the View Pager
@Override
public Fragment getItem(int position) {
    switch (position) {
        case 0:
            return new Call();

        case 1:
            return new Chat();
        case 2:
            return new Contact();

    }
    return null;
}

// This method return the titles for the Tabs in the Tab Strip
@Override
public CharSequence getPageTitle(int position) {
    return Titles[position];
}

// This method return the Number of tabs for the tabs Strip
@Override
public int getCount() {
    return NumbOfTabs;
}

  public class Call extends Fragment {


@Override
public View onCreateView(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.call, container, false);

    return v;
}

 public class Chat extends Fragment {


@Override
public View onCreateView(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.call, container, false);

    return v;
   }

  public class Contact extends Fragment {


@Override
public View onCreateView(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.call, container, false);

    return v;
}

}

Call.java

public class MainActivity extends AppCompatActivity {

// Declaring Your View and Variables
private Toolbar toolbar;
private ViewPager pager;
private ViewPagerAdapter adapter;
private SlidingTabLayout tabs;
private CharSequence Titles[] = {"Calls", "Chats", "Contacts" };
int Numboftabs = 3;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // Creating The Toolbar and setting it as the Toolbar for the activity

    toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    // getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setIcon(R.drawable.ic_launcher);

    // Creating The ViewPagerAdapter and Passing Fragment Manager, Titles
    // fot the Tabs and Number Of Tabs.
    adapter = new ViewPagerAdapter(getSupportFragmentManager(), Titles,
            Numboftabs);

    // Assigning ViewPager View and setting the adapter
    pager = (ViewPager) findViewById(R.id.pager);
    pager.setAdapter(adapter);

    // Assiging the Sliding Tab Layout View
    tabs = (SlidingTabLayout) findViewById(R.id.tabs);
    tabs.setDistributeEvenly(true);
    tabs.setViewPager(pager);
}

public class ViewPagerAdapter extends FragmentStatePagerAdapter {

CharSequence Titles[];
int NumbOfTabs;

public ViewPagerAdapter(FragmentManager fm, CharSequence mTitles[],
                        int mNumbOfTabsumb) {
    super(fm);
    this.Titles = mTitles;
    this.NumbOfTabs = mNumbOfTabsumb;
}

// This method return the fragment for the every position in the View Pager
@Override
public Fragment getItem(int position) {
    switch (position) {
        case 0:
            return new Call();

        case 1:
            return new Chat();
        case 2:
            return new Contact();

    }
    return null;
}

// This method return the titles for the Tabs in the Tab Strip
@Override
public CharSequence getPageTitle(int position) {
    return Titles[position];
}

// This method return the Number of tabs for the tabs Strip
@Override
public int getCount() {
    return NumbOfTabs;
}

  public class Call extends Fragment {


@Override
public View onCreateView(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.call, container, false);

    return v;
}

 public class Chat extends Fragment {


@Override
public View onCreateView(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.call, container, false);

    return v;
   }

  public class Contact extends Fragment {


@Override
public View onCreateView(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.call, container, false);

    return v;
}

}

Chat.java

public class MainActivity extends AppCompatActivity {

// Declaring Your View and Variables
private Toolbar toolbar;
private ViewPager pager;
private ViewPagerAdapter adapter;
private SlidingTabLayout tabs;
private CharSequence Titles[] = {"Calls", "Chats", "Contacts" };
int Numboftabs = 3;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // Creating The Toolbar and setting it as the Toolbar for the activity

    toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    // getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setIcon(R.drawable.ic_launcher);

    // Creating The ViewPagerAdapter and Passing Fragment Manager, Titles
    // fot the Tabs and Number Of Tabs.
    adapter = new ViewPagerAdapter(getSupportFragmentManager(), Titles,
            Numboftabs);

    // Assigning ViewPager View and setting the adapter
    pager = (ViewPager) findViewById(R.id.pager);
    pager.setAdapter(adapter);

    // Assiging the Sliding Tab Layout View
    tabs = (SlidingTabLayout) findViewById(R.id.tabs);
    tabs.setDistributeEvenly(true);
    tabs.setViewPager(pager);
}

public class ViewPagerAdapter extends FragmentStatePagerAdapter {

CharSequence Titles[];
int NumbOfTabs;

public ViewPagerAdapter(FragmentManager fm, CharSequence mTitles[],
                        int mNumbOfTabsumb) {
    super(fm);
    this.Titles = mTitles;
    this.NumbOfTabs = mNumbOfTabsumb;
}

// This method return the fragment for the every position in the View Pager
@Override
public Fragment getItem(int position) {
    switch (position) {
        case 0:
            return new Call();

        case 1:
            return new Chat();
        case 2:
            return new Contact();

    }
    return null;
}

// This method return the titles for the Tabs in the Tab Strip
@Override
public CharSequence getPageTitle(int position) {
    return Titles[position];
}

// This method return the Number of tabs for the tabs Strip
@Override
public int getCount() {
    return NumbOfTabs;
}

  public class Call extends Fragment {


@Override
public View onCreateView(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.call, container, false);

    return v;
}

 public class Chat extends Fragment {


@Override
public View onCreateView(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.call, container, false);

    return v;
   }

  public class Contact extends Fragment {


@Override
public View onCreateView(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.call, container, false);

    return v;
}

}

Contact.java

public class MainActivity extends AppCompatActivity {

// Declaring Your View and Variables
private Toolbar toolbar;
private ViewPager pager;
private ViewPagerAdapter adapter;
private SlidingTabLayout tabs;
private CharSequence Titles[] = {"Calls", "Chats", "Contacts" };
int Numboftabs = 3;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // Creating The Toolbar and setting it as the Toolbar for the activity

    toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    // getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setIcon(R.drawable.ic_launcher);

    // Creating The ViewPagerAdapter and Passing Fragment Manager, Titles
    // fot the Tabs and Number Of Tabs.
    adapter = new ViewPagerAdapter(getSupportFragmentManager(), Titles,
            Numboftabs);

    // Assigning ViewPager View and setting the adapter
    pager = (ViewPager) findViewById(R.id.pager);
    pager.setAdapter(adapter);

    // Assiging the Sliding Tab Layout View
    tabs = (SlidingTabLayout) findViewById(R.id.tabs);
    tabs.setDistributeEvenly(true);
    tabs.setViewPager(pager);
}

public class ViewPagerAdapter extends FragmentStatePagerAdapter {

CharSequence Titles[];
int NumbOfTabs;

public ViewPagerAdapter(FragmentManager fm, CharSequence mTitles[],
                        int mNumbOfTabsumb) {
    super(fm);
    this.Titles = mTitles;
    this.NumbOfTabs = mNumbOfTabsumb;
}

// This method return the fragment for the every position in the View Pager
@Override
public Fragment getItem(int position) {
    switch (position) {
        case 0:
            return new Call();

        case 1:
            return new Chat();
        case 2:
            return new Contact();

    }
    return null;
}

// This method return the titles for the Tabs in the Tab Strip
@Override
public CharSequence getPageTitle(int position) {
    return Titles[position];
}

// This method return the Number of tabs for the tabs Strip
@Override
public int getCount() {
    return NumbOfTabs;
}

  public class Call extends Fragment {


@Override
public View onCreateView(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.call, container, false);

    return v;
}

 public class Chat extends Fragment {


@Override
public View onCreateView(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.call, container, false);

    return v;
   }

  public class Contact extends Fragment {


@Override
public View onCreateView(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.call, container, false);

    return v;
}

}

---

当我运行上述代码时，最初会调用两个片段，如call.java和Chat.java，当我从左向右滚动并移动到聊天室时，java会在后台呼叫联系人。java会在后台呼叫，但当他出现在屏幕上时，我想呼叫每个片段，所以我知道如何解决这个问题吗？

如果是，你解决了吗？然后发布你的答案你解决了吗如果是，然后发布你的答案吗