1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 5 * in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the License 10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 11 * or implied. See the License for the specific language governing permissions and limitations under 12 * the License. 13 */ 14 package com.example.android.leanback; 15 16 import android.app.Fragment; 17 import android.content.Intent; 18 import android.os.Bundle; 19 import android.os.Handler; 20 import android.support.v17.leanback.app.GuidedStepFragment; 21 import android.support.v17.leanback.app.RowsFragment; 22 import android.support.v17.leanback.widget.ArrayObjectAdapter; 23 import android.support.v17.leanback.widget.DividerRow; 24 import android.support.v17.leanback.widget.HeaderItem; 25 import android.support.v17.leanback.widget.ImageCardView; 26 import android.support.v17.leanback.widget.ListRow; 27 import android.support.v17.leanback.widget.ListRowPresenter; 28 import android.support.v17.leanback.widget.OnItemViewClickedListener; 29 import android.support.v17.leanback.widget.OnItemViewSelectedListener; 30 import android.support.v17.leanback.widget.PageRow; 31 import android.support.v17.leanback.widget.Presenter; 32 import android.support.v17.leanback.widget.Row; 33 import android.support.v17.leanback.widget.RowPresenter; 34 import android.support.v17.leanback.widget.SectionRow; 35 import android.support.v4.app.ActivityOptionsCompat; 36 import android.util.Log; 37 import android.view.LayoutInflater; 38 import android.view.View; 39 import android.view.ViewGroup; 40 41 public class BrowseFragment extends android.support.v17.leanback.app.BrowseFragment { 42 private static final String TAG = "leanback.BrowseFragment"; 43 44 private static final boolean TEST_ENTRANCE_TRANSITION = true; 45 private static final int NUM_ROWS = 8; 46 private static final long HEADER_ID1 = 1001; 47 private static final long HEADER_ID2 = 1002; 48 private static final long HEADER_ID3 = 1003; 49 50 private ArrayObjectAdapter mRowsAdapter; 51 private BackgroundHelper mBackgroundHelper = new BackgroundHelper(); 52 53 // For good performance, it's important to use a single instance of 54 // a card presenter for all rows using that presenter. 55 final CardPresenter mCardPresenter = new CardPresenter(); 56 final CardPresenter mCardPresenter2 = new CardPresenter(R.style.MyImageCardViewTheme); 57 58 public BrowseFragment() { 59 getMainFragmentRegistry().registerFragment(PageRow.class, new PageRowFragmentFactory()); 60 } 61 62 @Override 63 public void onCreate(Bundle savedInstanceState) { 64 Log.i(TAG, "onCreate"); 65 super.onCreate(savedInstanceState); 66 67 setBadgeDrawable(getActivity().getResources().getDrawable(R.drawable.ic_title)); 68 setTitle("Leanback Sample App"); 69 setHeadersState(HEADERS_ENABLED); 70 setOnSearchClickedListener(new View.OnClickListener() { 71 @Override 72 public void onClick(View view) { 73 Intent intent = new Intent(getActivity(), SearchActivity.class); 74 startActivity(intent); 75 } 76 }); 77 78 setOnItemViewClickedListener(new ItemViewClickedListener()); 79 setOnItemViewSelectedListener(new OnItemViewSelectedListener() { 80 @Override 81 public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item, 82 RowPresenter.ViewHolder rowViewHolder, Row row) { 83 Log.i(TAG, "onItemSelected: " + item + " row " + row); 84 85 if (isShowingHeaders()) { 86 mBackgroundHelper.setBackground(getActivity(), null); 87 } else if (item instanceof PhotoItem) { 88 mBackgroundHelper.setBackground( 89 getActivity(), ((PhotoItem) item).getImageResourceId()); 90 } 91 } 92 }); 93 if (TEST_ENTRANCE_TRANSITION) { 94 // don't run entrance transition if fragment is restored. 95 if (savedInstanceState == null) { 96 prepareEntranceTransition(); 97 } 98 } 99 100 // simulates in a real world use case data being loaded two seconds later 101 new Handler().postDelayed(new Runnable() { 102 public void run() { 103 setupRows(); 104 loadData(); 105 startEntranceTransition(); 106 } 107 }, 2000); 108 } 109 110 @Override 111 public View onCreateView( 112 LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 113 return super.onCreateView(inflater, container, savedInstanceState); 114 } 115 116 private void setupRows() { 117 ListRowPresenter listRowPresenter = new ListRowPresenter(); 118 listRowPresenter.setNumRows(2); 119 mRowsAdapter = new ArrayObjectAdapter(listRowPresenter); 120 setAdapter(mRowsAdapter); 121 } 122 123 private void loadData() { 124 int i = 0; 125 126 mRowsAdapter.add(new PageRow(new HeaderItem(HEADER_ID1, "Page Row 0"))); 127 mRowsAdapter.add(new DividerRow()); 128 129 mRowsAdapter.add(new SectionRow(new HeaderItem("section 0"))); 130 for (; i < NUM_ROWS; ++i) { 131 mRowsAdapter.add(new ListRow(new HeaderItem(i, "Row " + i), createListRowAdapter(i))); 132 } 133 134 mRowsAdapter.add(new DividerRow()); 135 mRowsAdapter.add(new PageRow(new HeaderItem(HEADER_ID2, "Page Row 1"))); 136 137 mRowsAdapter.add(new PageRow(new HeaderItem(HEADER_ID3, "Page Row 2"))); 138 } 139 140 private ArrayObjectAdapter createListRowAdapter(int i) { 141 ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter((i & 1) == 0 ? 142 mCardPresenter : mCardPresenter2); 143 listRowAdapter.add(new PhotoItem( 144 "Hello world", 145 R.drawable.gallery_photo_1)); 146 listRowAdapter.add(new PhotoItem( 147 "This is a test", 148 "Only a test", 149 R.drawable.gallery_photo_2)); 150 listRowAdapter.add(new PhotoItem( 151 "Android TV", 152 "by Google", 153 R.drawable.gallery_photo_3)); 154 listRowAdapter.add(new PhotoItem( 155 "Leanback", 156 R.drawable.gallery_photo_4)); 157 listRowAdapter.add(new PhotoItem( 158 "GuidedStep (Slide left/right)", 159 R.drawable.gallery_photo_5)); 160 listRowAdapter.add(new PhotoItem( 161 "GuidedStep (Slide bottom up)", 162 "Open GuidedStepFragment", 163 R.drawable.gallery_photo_6)); 164 listRowAdapter.add(new PhotoItem( 165 "Android TV", 166 "open RowsActivity", 167 R.drawable.gallery_photo_7)); 168 listRowAdapter.add(new PhotoItem( 169 "Leanback", 170 "open BrowseActivity", 171 R.drawable.gallery_photo_8)); 172 listRowAdapter.add(new PhotoItem( 173 "Hello world", 174 R.drawable.gallery_photo_1)); 175 listRowAdapter.add(new PhotoItem( 176 "This is a test", 177 "Only a test", 178 R.drawable.gallery_photo_2)); 179 listRowAdapter.add(new PhotoItem( 180 "Android TV", 181 "by Google", 182 R.drawable.gallery_photo_3)); 183 listRowAdapter.add(new PhotoItem( 184 "Leanback", 185 R.drawable.gallery_photo_4)); 186 return listRowAdapter; 187 } 188 189 private final class ItemViewClickedListener implements OnItemViewClickedListener { 190 @Override 191 public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item, 192 RowPresenter.ViewHolder rowViewHolder, Row row) { 193 194 Intent intent; 195 Bundle bundle; 196 if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_6) { 197 GuidedStepFragment.add(getFragmentManager(), 198 new GuidedStepHalfScreenActivity.FirstStepFragment(), 199 R.id.lb_guidedstep_host); 200 return; 201 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_5) { 202 GuidedStepFragment.add(getFragmentManager(), 203 new GuidedStepActivity.FirstStepFragment(), R.id.lb_guidedstep_host); 204 return; 205 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_8) { 206 intent = new Intent(getActivity(), BrowseActivity.class); 207 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 208 .toBundle(); 209 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_7) { 210 intent = new Intent(getActivity(), RowsActivity.class); 211 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 212 .toBundle(); 213 } else { 214 intent = new Intent(getActivity(), DetailsActivity.class); 215 intent.putExtra(DetailsActivity.EXTRA_ITEM, (PhotoItem) item); 216 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation( 217 getActivity(), 218 ((ImageCardView) itemViewHolder.view).getMainImageView(), 219 DetailsActivity.SHARED_ELEMENT_NAME).toBundle(); 220 } 221 getActivity().startActivity(intent, bundle); 222 } 223 } 224 225 public static class PageRowFragmentFactory extends FragmentFactory { 226 227 @Override 228 public Fragment createFragment(Object rowObj) { 229 Row row = (Row) rowObj; 230 if (row.getHeaderItem().getId() == HEADER_ID1) { 231 return new SampleRowsFragment(); 232 } else if (row.getHeaderItem().getId() == HEADER_ID2) { 233 return new SampleRowsFragment(); 234 } else if (row.getHeaderItem().getId() == HEADER_ID3) { 235 return new SampleFragment(); 236 } 237 238 return null; 239 } 240 } 241 242 public static class SampleRowsFragment extends RowsFragment { 243 final CardPresenter mCardPresenter = new CardPresenter(); 244 final CardPresenter mCardPresenter2 = new CardPresenter(R.style.MyImageCardViewTheme); 245 246 void loadFragmentData() { 247 ArrayObjectAdapter adapter = (ArrayObjectAdapter) getAdapter(); 248 for (int i = 0; i < 4; i++) { 249 ListRow row = new ListRow(new HeaderItem("Row " + i), createListRowAdapter(i)); 250 adapter.add(row); 251 } 252 if (getMainFragmentAdapter() != null) { 253 getMainFragmentAdapter().getFragmentHost() 254 .notifyDataReady(getMainFragmentAdapter()); 255 } 256 } 257 258 public SampleRowsFragment() { 259 ArrayObjectAdapter adapter = new ArrayObjectAdapter(new ListRowPresenter()); 260 setAdapter(adapter); 261 // simulates late data loading: 262 new Handler().postDelayed(new Runnable() { 263 public void run() { 264 loadFragmentData(); 265 } 266 }, 500); 267 268 setOnItemViewClickedListener(new OnItemViewClickedListener() { 269 @Override 270 public void onItemClicked( 271 Presenter.ViewHolder itemViewHolder, 272 Object item, 273 RowPresenter.ViewHolder rowViewHolder, 274 Row row) { 275 Intent intent; 276 Bundle bundle; 277 if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_6) { 278 GuidedStepFragment.add(getActivity().getFragmentManager(), 279 new GuidedStepHalfScreenActivity.FirstStepFragment(), 280 R.id.lb_guidedstep_host); 281 return; 282 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_5) { 283 GuidedStepFragment.add(getActivity().getFragmentManager(), 284 new GuidedStepActivity.FirstStepFragment(), R.id.lb_guidedstep_host); 285 return; 286 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_8) { 287 intent = new Intent(getActivity(), BrowseActivity.class); 288 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 289 .toBundle(); 290 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_7) { 291 intent = new Intent(getActivity(), RowsActivity.class); 292 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 293 .toBundle(); 294 } else { 295 intent = new Intent(getActivity(), DetailsActivity.class); 296 intent.putExtra(DetailsActivity.EXTRA_ITEM, (PhotoItem) item); 297 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation( 298 getActivity(), 299 ((ImageCardView) itemViewHolder.view).getMainImageView(), 300 DetailsActivity.SHARED_ELEMENT_NAME).toBundle(); 301 } 302 getActivity().startActivity(intent, bundle); 303 } 304 }); 305 } 306 307 private ArrayObjectAdapter createListRowAdapter(int i) { 308 ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter((i & 1) == 0 ? 309 mCardPresenter : mCardPresenter2); 310 listRowAdapter.add(new PhotoItem( 311 "Hello world", 312 R.drawable.gallery_photo_1)); 313 listRowAdapter.add(new PhotoItem( 314 "This is a test", 315 "Only a test", 316 R.drawable.gallery_photo_2)); 317 listRowAdapter.add(new PhotoItem( 318 "Android TV", 319 "by Google", 320 R.drawable.gallery_photo_3)); 321 listRowAdapter.add(new PhotoItem( 322 "Leanback", 323 R.drawable.gallery_photo_4)); 324 listRowAdapter.add(new PhotoItem( 325 "GuidedStep (Slide left/right)", 326 R.drawable.gallery_photo_5)); 327 listRowAdapter.add(new PhotoItem( 328 "GuidedStep (Slide bottom up)", 329 "Open GuidedStepFragment", 330 R.drawable.gallery_photo_6)); 331 listRowAdapter.add(new PhotoItem( 332 "Android TV", 333 "open RowsActivity", 334 R.drawable.gallery_photo_7)); 335 listRowAdapter.add(new PhotoItem( 336 "Leanback", 337 "open BrowseActivity", 338 R.drawable.gallery_photo_8)); 339 return listRowAdapter; 340 } 341 } 342 343 public static class PageFragmentAdapterImpl extends MainFragmentAdapter<SampleFragment> { 344 345 public PageFragmentAdapterImpl(SampleFragment fragment) { 346 super(fragment); 347 setScalingEnabled(true); 348 } 349 350 @Override 351 public void setEntranceTransitionState(boolean state) { 352 getFragment().setEntranceTransitionState(state); 353 } 354 } 355 356 public static class SampleFragment extends Fragment implements MainFragmentAdapterProvider { 357 358 final PageFragmentAdapterImpl mMainFragmentAdapter = new PageFragmentAdapterImpl(this); 359 360 public void setEntranceTransitionState(boolean state) { 361 final View view = getView(); 362 int visibility = state ? View.VISIBLE : View.INVISIBLE; 363 view.findViewById(R.id.tv1).setVisibility(visibility); 364 view.findViewById(R.id.tv2).setVisibility(visibility); 365 view.findViewById(R.id.tv3).setVisibility(visibility); 366 } 367 368 @Override 369 public View onCreateView( 370 final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 371 View view = inflater.inflate(R.layout.page_fragment, container, false); 372 view.findViewById(R.id.tv1).setOnClickListener(new View.OnClickListener() { 373 @Override 374 public void onClick(View view) { 375 Intent intent = new Intent(inflater.getContext(), GuidedStepActivity.class); 376 startActivity(intent); 377 } 378 }); 379 380 return view; 381 } 382 383 @Override 384 public void onViewCreated(View view, Bundle savedInstanceState) { 385 // static layout has view and data ready immediately 386 mMainFragmentAdapter.getFragmentHost().notifyViewCreated(mMainFragmentAdapter); 387 mMainFragmentAdapter.getFragmentHost().notifyDataReady(mMainFragmentAdapter); 388 } 389 390 @Override 391 public MainFragmentAdapter getMainFragmentAdapter() { 392 return mMainFragmentAdapter; 393 } 394 } 395 } 396
