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chandrashekhar singh
507 PointsI am getting this problem
Attempt to invoke virtual method 'int android.os.Bundle.getInt(java.lang.String)' on a null object reference at com.csing1s.myapplication.CheckBoxexFragments.<init>(CheckBoxexFragments.java:17) at com.csing1s.myapplication.IngredientFragment.<init>(IngredientFragment.java:0) at com.csing1s.myapplication.ViewPagerFragment.onCreateView(ViewPagerFragment.java:32) at android.support.v4.app.Fragment.performCreateView(Fragment.java:1974) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1067) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1252) at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:738) at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1617)
Arthy Shankari Maragathasundaram
14,849 PointsIt would be great if you could paste the code here along with the log.
4 Answers
Jeeya M
16,839 PointsOn Line 17 of CheckBoxesFragments you call getInt() on a bundle. It looks like you may have passed in a string on the getInt() method from what I see in the log. Can you send the code?
chandrashekhar singh
507 Pointspublic abstract class CheckBoxexFragments extends Fragment { private static final String KEY_CHECKED_BOXEX ="key_checked_box"; int index = getArguments().getInt(ViewPagerFragment.KEY_RECIEPE_INDEX); String [] contents= getContents(index); private CheckBox[] mCheckBoxes= new CheckBox[contents.length]; @Nullable @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // int index = getArguments().getInt(ViewPagerFragment.KEY_RECIEPE_INDEX); // boolean isIngredients = getArguments().getBoolean(ViewPagerFragment.KEY_IS_INGREDIENTS); View view = inflater.inflate(R.layout.checkboxfragments,container,false); LinearLayout linearLayout = (LinearLayout) view.findViewById(R.id.checkboxeslayoutFragment);
String [] contents= getContents(index);
/*
if(isIngredients)
{
contents= Recipie.ingredients[index].split("'");
}
else
{
contents= Recipie.ingredients[index].split("'");
}
*/
//mCheckBoxes = new CheckBox[contents.length];
boolean[] checkedBoxex = new boolean[mCheckBoxes.length];
if(savedInstanceState != null && savedInstanceState.getBooleanArray(KEY_CHECKED_BOXEX)!=null);
{
checkedBoxex = savedInstanceState.getBooleanArray(KEY_CHECKED_BOXEX);
}
setupCheckBoxes(contents,linearLayout,checkedBoxex);
return view;
}
public abstract String[] getContents(int index);
private void setupCheckBoxes(String[] contents, ViewGroup container, boolean[] checkedBoxex) {
for (String in : contents) {
int i = 0;
mCheckBoxes[i] = new CheckBox(getActivity());
mCheckBoxes[i].setPadding(8, 16, 8, 16);
mCheckBoxes[i].setTextSize(20f);
mCheckBoxes[i].setText(in);
container.addView(mCheckBoxes[i]);
if (checkedBoxex[i]) {
mCheckBoxes[i].toggle();
i++;
}
}
}
@Override
public void onSaveInstanceState(Bundle outState) {
boolean[]stateOfCheckBoxex = new boolean[mCheckBoxes.length];
int i =0;
for (CheckBox checkBox:mCheckBoxes)
{
stateOfCheckBoxex[i]=checkBox.isChecked();
i++;
}
outState.putBooleanArray(KEY_CHECKED_BOXEX,stateOfCheckBoxex);
super.onSaveInstanceState(outState);
}
}
chandrashekhar singh
507 Pointspublic class MainActivity extends AppCompatActivity implements fragment.RecipieSelected { public static final String LIST_FRAGMENT="list_fragment"; public static final String view_FRAGMENT="view_fragment";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
boolean isTablet = getResources().getBoolean(R.bool.is_tablet);
Fragment savefragment = getSupportFragmentManager().findFragmentByTag(LIST_FRAGMENT);
if(savefragment==null) {
fragment fragment = new fragment();
FragmentManager manager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = manager.beginTransaction();
fragmentTransaction.add(R.id.placeholder, fragment,LIST_FRAGMENT);
fragmentTransaction.commit();
}
}
@Override
public void OnListSelectedRecipie(int index) {
ViewPagerFragment fragment = new ViewPagerFragment();
Bundle bundle = new Bundle();
bundle.putInt(ViewPagerFragment.KEY_RECIEPE_INDEX,index);
fragment.setArguments(bundle);
FragmentManager manager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = manager.beginTransaction();
fragmentTransaction.replace(R.id.placeholder,fragment,view_FRAGMENT);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
}
}
chandrashekhar singh
507 Pointspublic class ViewPagerFragment extends Fragment { public static final String KEY_RECIEPE_INDEX = "recipe_index"; // public static final String KEY_IS_INGREDIENTS="key_is_Ingredients"; @Nullable @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { int index = getArguments().getInt(KEY_RECIEPE_INDEX); getActivity().setTitle(Recipie.names[index]); //Toast.makeText(getContext(),Recipie.names[index],Toast.LENGTH_SHORT).show();
View view = inflater.inflate(R.layout.fragmentviewpager, container, false);
final IngredientFragment mingredientFragment = new IngredientFragment();
Bundle bundle = new Bundle();
bundle.putInt(KEY_RECIEPE_INDEX,index);
// bundle.putBoolean(KEY_IS_INGREDIENTS,true);
mingredientFragment.setArguments(bundle);
final DirectionFragments mdirectionFragments = new DirectionFragments();
bundle = new Bundle();
bundle.putInt(KEY_RECIEPE_INDEX,index);
// bundle.putInt(KEY_RECIEPE_INDEX,index);bundle.putBoolean(KEY_IS_INGREDIENTS,false);
mdirectionFragments.setArguments(bundle);
ViewPager viewpager = (ViewPager) view.findViewById(R.id.vp);
viewpager.setAdapter(new FragmentPagerAdapter(getFragmentManager()) {
@Override
public Fragment getItem(int position) {
if(position == 0)
return mingredientFragment;
else {
return mdirectionFragments;
}
}
@Override
public CharSequence getPageTitle(int position) {
return position == 0 ? "Ingredients" : "Directions";
}
@Override
public int getCount() {
return 2;
}
});
TabLayout tabLayout = (TabLayout) view.findViewById(R.id.Tablayout);
tabLayout.setupWithViewPager(viewpager);
return view;
}
@Override
public void onStop() {
super.onStop();
getActivity().setTitle(getResources().getString(R.string.app_name));
}
}
chandrashekhar singh
507 Pointspublic class IngredientFragment extends CheckBoxexFragments { @Override public String[] getContents(int index) { return Recipie.ingredients[index].split("'"); } }
Jeeya M
16,839 PointsJeeya M
16,839 PointsOn Line 17 of CheckBoxesFragments you call getInt() on a bundle. It looks like you may have passed in a string on the getInt() method from what I see in the log. Can you send the code?