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私はTabLayotでアクティビティを持っています。二次テキストのみでアクティビティにフラグメントが添付されていません
public class MapTab extends AppCompatActivity {
private Toolbar toolbar;
private TabLayout tabLayout;
private ViewPager viewPager;
public MapTab() {
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map_tab);
toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
viewPager = (ViewPager)findViewById(R.id.viewPager);
setupViewPager(viewPager);
tabLayout = (TabLayout)findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
}
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new PvPMap(), "PvP Карты");
adapter.addFragment(new PvEMap(), "PvE Карты");
viewPager.setAdapter(adapter);
}
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
XML
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags = "scroll|enterAlways"
/>
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabMode="fixed"
app:tabGravity="center"
/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/viewPager"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
、ListFragment
public class PvPMap extends ListFragment {
Fragment permafrost;
Fragment river;
Fragment reactor;
Fragment oil;
Fragment mountain;
Fragment island;
Fragment cold;
Fragment pis;
Fragment fire;
Fragment air;
FragmentManager manager;
FragmentTransaction transaction;
String [] mapname = new String[] {"Вечная мерзлота","Тихая река","Реактор","Нефтепровод","Предгорье",
"Затеряный остров","Холодная сталь","Мирный рубеж","Горящий песок","Воздушная тревога"};
int [] mapimg = new int[] {R.drawable.permafrost, R.drawable.river, R.drawable.reaktor, R.drawable.oil, R.drawable.mauntain,
R.drawable.island, R.drawable.cold, R.drawable.pis, R.drawable.fire, R.drawable.air};
String [] mapinfo = new String[] {getResources().getString(R.string.permafrostInfo), getResources().getString(R.string.riverInfo),
getResources().getString(R.string.reaktorInfo), getResources().getString(R.string.oilInfo),
getResources().getString(R.string.mauntainInfo), getResources().getString(R.string.islandInfo),
getResources().getString(R.string.coldInfo), getResources().getString(R.string.pisInfo),
getResources().getString(R.string.fireInfo), getResources().getString(R.string.airInfo),};
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View pvp = inflater.inflate(R.layout.layout_pvp, container, false);
permafrost = new Permafrost();
river = new River();
reactor = new Reactor();
oil = new Oil();
mountain = new Mauntain();
island = new Island();
cold = new Cold();
pis = new Pis();
fire = new Fire();
air = new Air();
List<HashMap<String, String>> aList = new ArrayList<HashMap<String, String>>();
for (int i = 0; i < mapname.length; i++){
HashMap<String, String> m = new HashMap<String,String>();
m.put("name", mapname[i]);
m.put("info", mapinfo[i]);
m.put("img", Integer.toString(mapimg[i]));
aList.add(m);
}
String[] from = {"name", "info", "img"};
int [] to = {R.id.textViewMap, R.id.textViewInfo, R.id.imageViewMap};
SimpleAdapter adapter = new SimpleAdapter(getActivity().getBaseContext(), aList, R.layout.list_item, from, to);
setListAdapter(adapter);
return pvp;
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
manager = getChildFragmentManager();
transaction = manager.beginTransaction();
switch (position){
case 0:
transaction.replace(R.id.container, permafrost);
transaction.addToBackStack(null);
break;
case 1:
transaction.replace(R.id.container, river);
transaction.addToBackStack(null);
break;
case 2:
transaction.replace(R.id.container, reactor);
transaction.addToBackStack(null);
break;
case 3:
transaction.replace(R.id.container, oil);
transaction.addToBackStack(null);
break;
case 4:
transaction.replace(R.id.container, mountain);
transaction.addToBackStack(null);
break;
case 5:
transaction.replace(R.id.container, island);
transaction.addToBackStack(null);
break;
case 6:
transaction.replace(R.id.container, cold);
transaction.addToBackStack(null);
break;
case 7:
transaction.replace(R.id.container, pis);
transaction.addToBackStack(null);
break;
case 8:
transaction.replace(R.id.container, fire);
transaction.addToBackStack(null);
break;
case 9:
transaction.replace(R.id.container, air);
transaction.addToBackStack(null);
break;
}
transaction.commit();
}
。
IはTabLayoutと活動に行く時にエラーが発生：
06-15 16:52:09.520 29302-29302/com.example.roman.armoredwarfare E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.roman.armoredwarfare, PID: 29302
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.roman.armoredwarfare/com.example.roman.armoredwarfare.MapTab}: java.lang.IllegalStateException: Fragment PvPMap{11d5eb92} not attached to Activity
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2534)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2608)
at android.app.ActivityThread.access$800(ActivityThread.java:178)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1470)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5637)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)
Caused by: java.lang.IllegalStateException: Fragment PvPMap{11d5eb92} not attached to Activity
at android.support.v4.app.Fragment.getResources(Fragment.java:636)
at com.example.roman.armoredwarfare.PvPMap.<init>(PvPMap.java:55)
at com.example.roman.armoredwarfare.MapTab.setupViewPager(MapTab.java:47)
at com.example.roman.armoredwarfare.MapTab.onCreate(MapTab.java:39)
at android.app.Activity.performCreate(Activity.java:6092)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1112)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2481)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2608)
at android.app.ActivityThread.access$800(ActivityThread.java:178)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1470)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5637)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)
具体的には1：ListFragment
2を有する断片で
String [] mapinfo = new String[] {getResources().getString(R.string.permafrostInfo), getResources().getString(R.string.riverInfo),
getResources().getString(R.string.reaktorInfo), getResources().getString(R.string.oilInfo),
getResources().getString(R.string.mauntainInfo), getResources().getString(R.string.islandInfo),
getResources().getString(R.string.coldInfo), getResources().getString(R.string.pisInfo),
getResources().getString(R.string.fireInfo), getResources().getString(R.string.airInfo),};
：setupViewPager(viewPager);
3：adapter.addFragment(new PvPMap(), "PvP Карты");
アクティビティ（TabLayot）
私の英語はあまり良くありません。
ありがとうございました!!! –