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.support.v4.content.res.ResourcesCompat; 37 import android.util.Log; 38 import android.view.LayoutInflater; 39 import android.view.View; 40 import android.view.ViewGroup; 41 42 public class BrowseFragment extends android.support.v17.leanback.app.BrowseFragment { 43 private static final String TAG = "leanback.BrowseFragment"; 44 45 private static final boolean TEST_ENTRANCE_TRANSITION = true; 46 private static final int NUM_ROWS = 8; 47 private static final long HEADER_ID1 = 1001; 48 private static final long HEADER_ID2 = 1002; 49 private static final long HEADER_ID3 = 1003; 50 51 private ArrayObjectAdapter mRowsAdapter; 52 private BackgroundHelper mBackgroundHelper; 53 54 // For good performance, it's important to use a single instance of 55 // a card presenter for all rows using that presenter. 56 final CardPresenter mCardPresenter = new CardPresenter(); 57 final CardPresenter mCardPresenter2 = new CardPresenter(R.style.MyImageCardViewTheme); 58 BrowseFragment()59 public BrowseFragment() { 60 getMainFragmentRegistry().registerFragment(PageRow.class, new PageRowFragmentFactory()); 61 } 62 63 @Override onCreate(Bundle savedInstanceState)64 public void onCreate(Bundle savedInstanceState) { 65 Log.i(TAG, "onCreate"); 66 super.onCreate(savedInstanceState); 67 68 mBackgroundHelper = new BackgroundHelper(getActivity()); 69 mBackgroundHelper.attachToWindow(); 70 71 setBadgeDrawable(ResourcesCompat.getDrawable(getActivity().getResources(), 72 R.drawable.ic_title, getActivity().getTheme())); 73 setTitle("Leanback Sample App"); 74 setHeadersState(HEADERS_ENABLED); 75 setOnSearchClickedListener(new View.OnClickListener() { 76 @Override 77 public void onClick(View view) { 78 Intent intent = new Intent(getActivity(), SearchActivity.class); 79 startActivity(intent); 80 } 81 }); 82 83 setOnItemViewClickedListener(new ItemViewClickedListener()); 84 setOnItemViewSelectedListener(new OnItemViewSelectedListener() { 85 @Override 86 public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item, 87 RowPresenter.ViewHolder rowViewHolder, Row row) { 88 Log.i(TAG, "onItemSelected: " + item + " row " + row); 89 90 updateBackgroundToSelection(); 91 } 92 }); 93 setBrowseTransitionListener(new BrowseTransitionListener() { 94 @Override 95 public void onHeadersTransitionStop(boolean withHeaders) { 96 updateBackgroundToSelection(); 97 } 98 }); 99 if (TEST_ENTRANCE_TRANSITION) { 100 // don't run entrance transition if fragment is restored. 101 if (savedInstanceState == null) { 102 prepareEntranceTransition(); 103 } 104 } 105 106 // simulates in a real world use case data being loaded two seconds later 107 new Handler().postDelayed(new Runnable() { 108 @Override 109 public void run() { 110 setupRows(); 111 loadData(); 112 startEntranceTransition(); 113 } 114 }, 2000); 115 } 116 117 @Override onStart()118 public void onStart() { 119 super.onStart(); 120 updateBackgroundToSelection(); 121 } 122 updateBackgroundToSelection()123 void updateBackgroundToSelection() { 124 if (!isShowingHeaders()) { 125 RowPresenter.ViewHolder rowViewHolder = getSelectedRowViewHolder(); 126 Object item = rowViewHolder == null ? null : rowViewHolder.getSelectedItem(); 127 if (item != null) { 128 mBackgroundHelper.setBackground(((PhotoItem) item).getImageResourceId()); 129 } else { 130 mBackgroundHelper.clearDrawable(); 131 } 132 } else { 133 mBackgroundHelper.clearDrawable(); 134 } 135 } 136 137 @Override onCreateView( LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)138 public View onCreateView( 139 LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 140 return super.onCreateView(inflater, container, savedInstanceState); 141 } 142 setupRows()143 private void setupRows() { 144 ListRowPresenter listRowPresenter = new ListRowPresenter(); 145 listRowPresenter.setNumRows(1); 146 mRowsAdapter = new ArrayObjectAdapter(listRowPresenter); 147 setAdapter(mRowsAdapter); 148 } 149 loadData()150 private void loadData() { 151 int i = 0; 152 153 mRowsAdapter.add(new PageRow(new HeaderItem(HEADER_ID1, "Page Row 0"))); 154 mRowsAdapter.add(new DividerRow()); 155 156 mRowsAdapter.add(new SectionRow(new HeaderItem("section 0"))); 157 for (; i < NUM_ROWS; ++i) { 158 HeaderItem headerItem = new HeaderItem(i, "Row " + i); 159 headerItem.setDescription("Description for Row "+i); 160 mRowsAdapter.add(new ListRow(headerItem, createListRowAdapter(i))); 161 } 162 163 mRowsAdapter.add(new DividerRow()); 164 mRowsAdapter.add(new PageRow(new HeaderItem(HEADER_ID2, "Page Row 1"))); 165 166 mRowsAdapter.add(new PageRow(new HeaderItem(HEADER_ID3, "Page Row 2"))); 167 } 168 createListRowAdapter(int i)169 private ArrayObjectAdapter createListRowAdapter(int i) { 170 ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter((i & 1) == 0 ? 171 mCardPresenter : mCardPresenter2); 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 listRowAdapter.add(new PhotoItem( 187 "GuidedStep (Slide left/right)", 188 R.drawable.gallery_photo_5)); 189 listRowAdapter.add(new PhotoItem( 190 "GuidedStep (Slide bottom up)", 191 "Open GuidedStepFragment", 192 R.drawable.gallery_photo_6)); 193 listRowAdapter.add(new PhotoItem( 194 "Android TV", 195 "open RowsActivity", 196 R.drawable.gallery_photo_7)); 197 listRowAdapter.add(new PhotoItem( 198 "Leanback", 199 "open BrowseActivity", 200 R.drawable.gallery_photo_8)); 201 listRowAdapter.add(new PhotoItem( 202 "Hello world", 203 R.drawable.gallery_photo_1)); 204 listRowAdapter.add(new PhotoItem( 205 "This is a test", 206 "Only a test", 207 R.drawable.gallery_photo_2)); 208 listRowAdapter.add(new PhotoItem( 209 "Android TV", 210 "by Google", 211 R.drawable.gallery_photo_3)); 212 listRowAdapter.add(new PhotoItem( 213 "Leanback", 214 R.drawable.gallery_photo_4)); 215 return listRowAdapter; 216 } 217 218 private final class ItemViewClickedListener implements OnItemViewClickedListener { 219 @Override onItemClicked(Presenter.ViewHolder itemViewHolder, Object item, RowPresenter.ViewHolder rowViewHolder, Row row)220 public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item, 221 RowPresenter.ViewHolder rowViewHolder, Row row) { 222 223 Intent intent; 224 Bundle bundle; 225 if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_6) { 226 GuidedStepFragment.add(getFragmentManager(), 227 new GuidedStepHalfScreenActivity.FirstStepFragment(), 228 R.id.lb_guidedstep_host); 229 return; 230 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_5) { 231 GuidedStepFragment.add(getFragmentManager(), 232 new GuidedStepActivity.FirstStepFragment(), R.id.lb_guidedstep_host); 233 return; 234 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_8) { 235 intent = new Intent(getActivity(), BrowseActivity.class); 236 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 237 .toBundle(); 238 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_7) { 239 intent = new Intent(getActivity(), RowsActivity.class); 240 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 241 .toBundle(); 242 } else { 243 intent = new Intent(getActivity(), DetailsActivity.class); 244 intent.putExtra(DetailsActivity.EXTRA_ITEM, (PhotoItem) item); 245 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation( 246 getActivity(), 247 ((ImageCardView) itemViewHolder.view).getMainImageView(), 248 DetailsActivity.SHARED_ELEMENT_NAME).toBundle(); 249 } 250 getActivity().startActivity(intent, bundle); 251 } 252 } 253 254 public static class PageRowFragmentFactory extends FragmentFactory { 255 256 @Override createFragment(Object rowObj)257 public Fragment createFragment(Object rowObj) { 258 Row row = (Row) rowObj; 259 if (row.getHeaderItem().getId() == HEADER_ID1) { 260 return new SampleRowsFragment(); 261 } else if (row.getHeaderItem().getId() == HEADER_ID2) { 262 return new SampleRowsFragment(); 263 } else if (row.getHeaderItem().getId() == HEADER_ID3) { 264 return new SampleFragment(); 265 } 266 267 return null; 268 } 269 } 270 271 public static class SampleRowsFragment extends RowsFragment { 272 final CardPresenter mCardPresenter = new CardPresenter(); 273 final CardPresenter mCardPresenter2 = new CardPresenter(R.style.MyImageCardViewTheme); 274 loadFragmentData()275 void loadFragmentData() { 276 ArrayObjectAdapter adapter = (ArrayObjectAdapter) getAdapter(); 277 for (int i = 0; i < 4; i++) { 278 ListRow row = new ListRow(new HeaderItem("Row " + i), createListRowAdapter(i)); 279 adapter.add(row); 280 } 281 if (getMainFragmentAdapter() != null) { 282 getMainFragmentAdapter().getFragmentHost() 283 .notifyDataReady(getMainFragmentAdapter()); 284 } 285 } 286 SampleRowsFragment()287 public SampleRowsFragment() { 288 ArrayObjectAdapter adapter = new ArrayObjectAdapter(new ListRowPresenter()); 289 setAdapter(adapter); 290 // simulates late data loading: 291 new Handler().postDelayed(new Runnable() { 292 @Override 293 public void run() { 294 loadFragmentData(); 295 } 296 }, 500); 297 298 setOnItemViewClickedListener(new OnItemViewClickedListener() { 299 @Override 300 public void onItemClicked( 301 Presenter.ViewHolder itemViewHolder, 302 Object item, 303 RowPresenter.ViewHolder rowViewHolder, 304 Row row) { 305 Intent intent; 306 Bundle bundle; 307 if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_6) { 308 GuidedStepFragment.add(getActivity().getFragmentManager(), 309 new GuidedStepHalfScreenActivity.FirstStepFragment(), 310 R.id.lb_guidedstep_host); 311 return; 312 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_5) { 313 GuidedStepFragment.add(getActivity().getFragmentManager(), 314 new GuidedStepActivity.FirstStepFragment(), R.id.lb_guidedstep_host); 315 return; 316 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_8) { 317 intent = new Intent(getActivity(), BrowseActivity.class); 318 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 319 .toBundle(); 320 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_7) { 321 intent = new Intent(getActivity(), RowsActivity.class); 322 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 323 .toBundle(); 324 } else { 325 intent = new Intent(getActivity(), DetailsActivity.class); 326 intent.putExtra(DetailsActivity.EXTRA_ITEM, (PhotoItem) item); 327 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation( 328 getActivity(), 329 ((ImageCardView) itemViewHolder.view).getMainImageView(), 330 DetailsActivity.SHARED_ELEMENT_NAME).toBundle(); 331 } 332 getActivity().startActivity(intent, bundle); 333 } 334 }); 335 } 336 createListRowAdapter(int i)337 private ArrayObjectAdapter createListRowAdapter(int i) { 338 ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter((i & 1) == 0 ? 339 mCardPresenter : mCardPresenter2); 340 listRowAdapter.add(new PhotoItem( 341 "Hello world", 342 R.drawable.gallery_photo_1)); 343 listRowAdapter.add(new PhotoItem( 344 "This is a test", 345 "Only a test", 346 R.drawable.gallery_photo_2)); 347 listRowAdapter.add(new PhotoItem( 348 "Android TV", 349 "by Google", 350 R.drawable.gallery_photo_3)); 351 listRowAdapter.add(new PhotoItem( 352 "Leanback", 353 R.drawable.gallery_photo_4)); 354 listRowAdapter.add(new PhotoItem( 355 "GuidedStep (Slide left/right)", 356 R.drawable.gallery_photo_5)); 357 listRowAdapter.add(new PhotoItem( 358 "GuidedStep (Slide bottom up)", 359 "Open GuidedStepFragment", 360 R.drawable.gallery_photo_6)); 361 listRowAdapter.add(new PhotoItem( 362 "Android TV", 363 "open RowsActivity", 364 R.drawable.gallery_photo_7)); 365 listRowAdapter.add(new PhotoItem( 366 "Leanback", 367 "open BrowseActivity", 368 R.drawable.gallery_photo_8)); 369 return listRowAdapter; 370 } 371 } 372 373 public static class PageFragmentAdapterImpl extends MainFragmentAdapter<SampleFragment> { 374 PageFragmentAdapterImpl(SampleFragment fragment)375 public PageFragmentAdapterImpl(SampleFragment fragment) { 376 super(fragment); 377 setScalingEnabled(true); 378 } 379 380 @Override setEntranceTransitionState(boolean state)381 public void setEntranceTransitionState(boolean state) { 382 getFragment().setEntranceTransitionState(state); 383 } 384 } 385 386 public static class SampleFragment extends Fragment implements MainFragmentAdapterProvider { 387 388 final PageFragmentAdapterImpl mMainFragmentAdapter = new PageFragmentAdapterImpl(this); 389 setEntranceTransitionState(boolean state)390 public void setEntranceTransitionState(boolean state) { 391 final View view = getView(); 392 int visibility = state ? View.VISIBLE : View.INVISIBLE; 393 view.findViewById(R.id.tv1).setVisibility(visibility); 394 view.findViewById(R.id.tv2).setVisibility(visibility); 395 view.findViewById(R.id.tv3).setVisibility(visibility); 396 } 397 398 @Override onCreateView( final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)399 public View onCreateView( 400 final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 401 View view = inflater.inflate(R.layout.page_fragment, container, false); 402 view.findViewById(R.id.tv1).setOnClickListener(new View.OnClickListener() { 403 @Override 404 public void onClick(View view) { 405 Intent intent = new Intent(inflater.getContext(), GuidedStepActivity.class); 406 startActivity(intent); 407 } 408 }); 409 410 return view; 411 } 412 413 @Override onViewCreated(View view, Bundle savedInstanceState)414 public void onViewCreated(View view, Bundle savedInstanceState) { 415 // static layout has view and data ready immediately 416 mMainFragmentAdapter.getFragmentHost().notifyViewCreated(mMainFragmentAdapter); 417 mMainFragmentAdapter.getFragmentHost().notifyDataReady(mMainFragmentAdapter); 418 } 419 420 @Override getMainFragmentAdapter()421 public MainFragmentAdapter getMainFragmentAdapter() { 422 return mMainFragmentAdapter; 423 } 424 } 425 } 426