BrowseFragment.java revision 4ff7f6d210b75531b3dce98f8028804f55c72051
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 */ 14package com.example.android.leanback; 15 16import android.app.Fragment; 17import android.content.Intent; 18import android.os.Bundle; 19import android.os.Handler; 20import android.support.v17.leanback.app.GuidedStepFragment; 21import android.support.v17.leanback.app.RowsFragment; 22import android.support.v17.leanback.widget.ArrayObjectAdapter; 23import android.support.v17.leanback.widget.DividerRow; 24import android.support.v17.leanback.widget.HeaderItem; 25import android.support.v17.leanback.widget.ImageCardView; 26import android.support.v17.leanback.widget.ListRow; 27import android.support.v17.leanback.widget.ListRowPresenter; 28import android.support.v17.leanback.widget.OnItemViewClickedListener; 29import android.support.v17.leanback.widget.OnItemViewSelectedListener; 30import android.support.v17.leanback.widget.PageRow; 31import android.support.v17.leanback.widget.Presenter; 32import android.support.v17.leanback.widget.Row; 33import android.support.v17.leanback.widget.RowPresenter; 34import android.support.v17.leanback.widget.SectionRow; 35import android.support.v4.app.ActivityOptionsCompat; 36import android.util.Log; 37import android.view.LayoutInflater; 38import android.view.View; 39import android.view.ViewGroup; 40 41public 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 setupRows(); 71 setOnSearchClickedListener(new View.OnClickListener() { 72 @Override 73 public void onClick(View view) { 74 Intent intent = new Intent(getActivity(), SearchActivity.class); 75 startActivity(intent); 76 } 77 }); 78 79 setOnItemViewClickedListener(new ItemViewClickedListener()); 80 setOnItemViewSelectedListener(new OnItemViewSelectedListener() { 81 @Override 82 public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item, 83 RowPresenter.ViewHolder rowViewHolder, Row row) { 84 Log.i(TAG, "onItemSelected: " + item + " row " + row); 85 86 if (isShowingHeaders()) { 87 mBackgroundHelper.setBackground(getActivity(), null); 88 } else if (item instanceof PhotoItem) { 89 mBackgroundHelper.setBackground( 90 getActivity(), ((PhotoItem) item).getImageResourceId()); 91 } 92 } 93 }); 94 if (TEST_ENTRANCE_TRANSITION) { 95 // don't run entrance transition if fragment is restored. 96 if (savedInstanceState == null) { 97 prepareEntranceTransition(); 98 } 99 } 100 101 // simulates in a real world use case data being loaded two seconds later 102 new Handler().postDelayed(new Runnable() { 103 public void run() { 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 SampleFragment(); 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 PageFragmentAdapterImpl extends MainFragmentAdapter<SampleFragment> { 243 244 public PageFragmentAdapterImpl(SampleFragment fragment) { 245 super(fragment); 246 setScalingEnabled(true); 247 } 248 249 @Override 250 public void setEntranceTransitionState(boolean state) { 251 getFragment().setEntranceTransitionState(state); 252 } 253 } 254 255 public static class SampleRowsFragment extends RowsFragment { 256 final CardPresenter mCardPresenter = new CardPresenter(); 257 final CardPresenter mCardPresenter2 = new CardPresenter(R.style.MyImageCardViewTheme); 258 259 public SampleRowsFragment() { 260 ArrayObjectAdapter adapter = new ArrayObjectAdapter(new ListRowPresenter()); 261 for (int i = 0; i < 4; i++) { 262 ListRow row = new ListRow(new HeaderItem("Row " + i), createListRowAdapter(i)); 263 adapter.add(row); 264 } 265 setAdapter(adapter); 266 267 setOnItemViewClickedListener(new OnItemViewClickedListener() { 268 @Override 269 public void onItemClicked( 270 Presenter.ViewHolder itemViewHolder, 271 Object item, 272 RowPresenter.ViewHolder rowViewHolder, 273 Row row) { 274 Intent intent; 275 Bundle bundle; 276 if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_6) { 277 GuidedStepFragment.add(getFragmentManager(), 278 new GuidedStepHalfScreenActivity.FirstStepFragment(), 279 R.id.lb_guidedstep_host); 280 return; 281 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_5) { 282 GuidedStepFragment.add(getFragmentManager(), 283 new GuidedStepActivity.FirstStepFragment(), R.id.lb_guidedstep_host); 284 return; 285 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_8) { 286 intent = new Intent(getActivity(), BrowseActivity.class); 287 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 288 .toBundle(); 289 } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_7) { 290 intent = new Intent(getActivity(), RowsActivity.class); 291 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 292 .toBundle(); 293 } else { 294 intent = new Intent(getActivity(), DetailsActivity.class); 295 intent.putExtra(DetailsActivity.EXTRA_ITEM, (PhotoItem) item); 296 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation( 297 getActivity(), 298 ((ImageCardView) itemViewHolder.view).getMainImageView(), 299 DetailsActivity.SHARED_ELEMENT_NAME).toBundle(); 300 } 301 getActivity().startActivity(intent, bundle); 302 } 303 }); 304 } 305 306 private ArrayObjectAdapter createListRowAdapter(int i) { 307 ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter((i & 1) == 0 ? 308 mCardPresenter : mCardPresenter2); 309 listRowAdapter.add(new PhotoItem( 310 "Hello world", 311 R.drawable.gallery_photo_1)); 312 listRowAdapter.add(new PhotoItem( 313 "This is a test", 314 "Only a test", 315 R.drawable.gallery_photo_2)); 316 listRowAdapter.add(new PhotoItem( 317 "Android TV", 318 "by Google", 319 R.drawable.gallery_photo_3)); 320 listRowAdapter.add(new PhotoItem( 321 "Leanback", 322 R.drawable.gallery_photo_4)); 323 listRowAdapter.add(new PhotoItem( 324 "GuidedStep (Slide left/right)", 325 R.drawable.gallery_photo_5)); 326 listRowAdapter.add(new PhotoItem( 327 "GuidedStep (Slide bottom up)", 328 "Open GuidedStepFragment", 329 R.drawable.gallery_photo_6)); 330 listRowAdapter.add(new PhotoItem( 331 "Android TV", 332 "open RowsActivity", 333 R.drawable.gallery_photo_7)); 334 listRowAdapter.add(new PhotoItem( 335 "Leanback", 336 "open BrowseActivity", 337 R.drawable.gallery_photo_8)); 338 return listRowAdapter; 339 } 340 } 341 342 public static class SampleFragment extends Fragment implements MainFragmentAdapterProvider { 343 344 final PageFragmentAdapterImpl mMainFragmentAdapter = new PageFragmentAdapterImpl(this); 345 346 boolean mEntranceTransitionState = true; 347 348 public void setEntranceTransitionState(boolean state) { 349 mEntranceTransitionState = state; 350 final View view = getView(); 351 if (view == null) { 352 return; 353 } 354 int visibility = state ? View.VISIBLE : View.INVISIBLE; 355 view.findViewById(R.id.tv1).setVisibility(visibility); 356 view.findViewById(R.id.tv2).setVisibility(visibility); 357 view.findViewById(R.id.tv3).setVisibility(visibility); 358 } 359 360 @Override 361 public View onCreateView( 362 final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 363 View view = inflater.inflate(R.layout.page_fragment, container, false); 364 view.findViewById(R.id.tv1).setOnClickListener(new View.OnClickListener() { 365 @Override 366 public void onClick(View view) { 367 Intent intent = new Intent(inflater.getContext(), GuidedStepActivity.class); 368 startActivity(intent); 369 } 370 }); 371 372 return view; 373 } 374 375 @Override 376 public void onStart() { 377 super.onStart(); 378 mMainFragmentAdapter.getFragmentHost().notifyViewCreated(mMainFragmentAdapter); 379 } 380 381 @Override 382 public void onViewCreated(View view, Bundle savedInstanceState) { 383 setEntranceTransitionState(mEntranceTransitionState); 384 } 385 386 @Override 387 public MainFragmentAdapter getMainFragmentAdapter() { 388 return mMainFragmentAdapter; 389 } 390 } 391} 392