Databases
StackOverflow2013
Postsdbo
POPassing a Fragment in the constructor of an Adapter
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POPassing a Fragment in the constructor of an Adapter
    primarykey
    data
    text
    <p>Since the onClick event is never triggered on a <code>ViewPager</code> (see <a href="https://stackoverflow.com/questions/10243690/onclick-on-viewpager-not-triggered">this question</a>), I'm going to set the <code>onClickListener</code> to the item container in the adapter.</p> <p>The idea is, when an item is clicked, to call from the adapter a method from the Fragment in which this adapter is set to the <code>ViewPager</code>.</p> <p>For an <code>Activity</code> I would pass the context and call the method using this context (something like <code>((myActivity)context).itemContainerOnClick()</code>).</p> <p>But how can I do with a Fragment? Could I face any issue passing the Fragment as an argument to my adapter's constructor?</p> <p>Thanks</p> <p><b>Fragment</b></p> <pre><code>public class MyFragment extends Fragment { ViewPager mViewPager; int mPosition = 0; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { view = (RelativeLayout) inflater.inflate(R.layout.my_fragment_container, container, false); ViewPager viewPager = (ViewPager) view.findViewById(R.id.viewpager); mViewPager.setAdapter(new MyAdapter(getActivity(), myObjectArray); mViewPager.setOnPageChangeListener(new OnPageChangeListener() { @Override public void onPageSelected(int position) { mPosition = position; } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {} @Override public void onPageScrollStateChanged(int state) {} }); mViewPager.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // I want to start some activity, passing mPosition // but this is never called } }); return view; } // Alternative to mViewPager.setOnClickListener, called from the adapter public void onViewPagerClick() { // start some activity, passing mPosition } } </code></pre> <p><b>PageAdapter</b></p> <pre><code>class MyAdapter extends PagerAdapter { private MyObject[] mItemArray; private Context mContext; public SejoursWidgetAdapter(Context context, MyObject[] itemArray) { mContext = context; mItemArray = itemArray; } @Override public Object instantiateItem(View collection, int position) { LayoutInflater inflater = (LayoutInflater) collection.getContext() .getSystemService(Context.LAYOUT_INFLATER_SERVICE); View row = inflater.inflate(R.layout.item, null); // Add click listener here because setting it directly on the ViewPager does not work (onClick not triggered) row.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // How can I call MyFragment's onViewPagerClick() ? } }); ((ViewPager) collection).addView(row); return row; } /* More stuff */ } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCommunity
    1. USjul
    plurals
    1. PL
      singulars
      1. LTLinked
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POPassing a Fragment in the constructor of an Adapter
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload