1 package com.example.android.leanback; 2 3 import android.content.Context; 4 import android.content.Intent; 5 import android.os.Bundle; 6 import android.os.Handler; 7 import android.support.v17.leanback.widget.ArrayObjectAdapter; 8 import android.support.v17.leanback.widget.HeaderItem; 9 import android.support.v17.leanback.widget.ImageCardView; 10 import android.support.v17.leanback.widget.ListRow; 11 import android.support.v17.leanback.widget.ListRowPresenter; 12 import android.support.v17.leanback.widget.ObjectAdapter; 13 import android.support.v17.leanback.widget.OnItemViewClickedListener; 14 import android.support.v17.leanback.widget.Presenter; 15 import android.support.v17.leanback.widget.Row; 16 import android.support.v17.leanback.widget.RowPresenter; 17 import android.support.v4.app.ActivityOptionsCompat; 18 import android.support.v4.content.res.ResourcesCompat; 19 import android.text.TextUtils; 20 import android.util.Log; 21 22 public class SearchFragment extends android.support.v17.leanback.app.SearchFragment 23 implements android.support.v17.leanback.app.SearchFragment.SearchResultProvider { 24 private static final String TAG = "leanback.SearchFragment"; 25 private static final int NUM_ROWS = 3; 26 private static final int SEARCH_DELAY_MS = 1000; 27 28 private ArrayObjectAdapter mRowsAdapter; 29 private Handler mHandler = new Handler(); 30 private String mQuery; 31 32 @Override onCreate(Bundle savedInstanceState)33 public void onCreate(Bundle savedInstanceState) { 34 super.onCreate(savedInstanceState); 35 36 mRowsAdapter = new ArrayObjectAdapter(new ListRowPresenter()); 37 38 final Context context = getActivity(); 39 setBadgeDrawable(ResourcesCompat.getDrawable(context.getResources(), 40 R.drawable.ic_title, context.getTheme())); 41 setTitle("Leanback Sample App"); 42 setSearchResultProvider(this); 43 setOnItemViewClickedListener(new ItemViewClickedListener()); 44 } 45 46 @Override getResultsAdapter()47 public ObjectAdapter getResultsAdapter() { 48 return mRowsAdapter; 49 } 50 51 @Override onQueryTextChange(String newQuery)52 public boolean onQueryTextChange(String newQuery) { 53 Log.i(TAG, String.format("Search Query Text Change %s", newQuery)); 54 mRowsAdapter.clear(); 55 loadQuery(newQuery); 56 return true; 57 } 58 59 @Override onQueryTextSubmit(String query)60 public boolean onQueryTextSubmit(String query) { 61 Log.i(TAG, String.format("Search Query Text Submit %s", query)); 62 mRowsAdapter.clear(); 63 loadQuery(query); 64 return true; 65 } 66 loadQuery(String query)67 private void loadQuery(String query) { 68 mQuery = query; 69 mHandler.removeCallbacks(mDelayedLoad); 70 if (!TextUtils.isEmpty(query) && !query.equals("nil")) { 71 mHandler.postDelayed(mDelayedLoad, SEARCH_DELAY_MS); 72 } 73 } 74 loadRows()75 private void loadRows() { 76 for (int i = 0; i < NUM_ROWS; ++i) { 77 ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(new CardPresenter()); 78 listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_1)); 79 listRowAdapter.add(new PhotoItem("This is a test", R.drawable.gallery_photo_2)); 80 HeaderItem header = new HeaderItem(i, mQuery + " results row " + i); 81 mRowsAdapter.add(new ListRow(header, listRowAdapter)); 82 } 83 } 84 85 private Runnable mDelayedLoad = new Runnable() { 86 @Override 87 public void run() { 88 loadRows(); 89 } 90 }; 91 92 private final class ItemViewClickedListener implements OnItemViewClickedListener { 93 @Override onItemClicked(Presenter.ViewHolder itemViewHolder, Object item, RowPresenter.ViewHolder rowViewHolder, Row row)94 public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item, 95 RowPresenter.ViewHolder rowViewHolder, Row row) { 96 Intent intent = new Intent(getActivity(), DetailsActivity.class); 97 intent.putExtra(DetailsActivity.EXTRA_ITEM, (PhotoItem) item); 98 99 Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation( 100 getActivity(), 101 ((ImageCardView)itemViewHolder.view).getMainImageView(), 102 DetailsActivity.SHARED_ELEMENT_NAME).toBundle(); 103 getActivity().startActivity(intent, bundle); 104 } 105 } 106 } 107