/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package android.support.v17.leanback.supportleanbackshowcase.app.page;
import android.app.Activity;
import android.app.Fragment;
import android.os.Bundle;
import android.os.Handler;
import android.support.v17.leanback.app.BackgroundManager;
import android.support.v17.leanback.app.BrowseFragment;
import android.support.v17.leanback.app.RowsFragment;
import android.support.v17.leanback.supportleanbackshowcase.R;
import android.support.v17.leanback.supportleanbackshowcase.app.details.ShadowRowPresenterSelector;
import android.support.v17.leanback.supportleanbackshowcase.cards.presenters.CardPresenterSelector;
import android.support.v17.leanback.supportleanbackshowcase.models.Card;
import android.support.v17.leanback.supportleanbackshowcase.models.CardRow;
import android.support.v17.leanback.supportleanbackshowcase.utils.CardListRow;
import android.support.v17.leanback.supportleanbackshowcase.utils.Utils;
import android.support.v17.leanback.widget.ArrayObjectAdapter;
import android.support.v17.leanback.widget.FocusHighlight;
import android.support.v17.leanback.widget.HeaderItem;
import android.support.v17.leanback.widget.ListRow;
import android.support.v17.leanback.widget.ListRowPresenter;
import android.support.v17.leanback.widget.OnItemViewClickedListener;
import android.support.v17.leanback.widget.PageRow;
import android.support.v17.leanback.widget.Presenter;
import android.support.v17.leanback.widget.PresenterSelector;
import android.support.v17.leanback.widget.Row;
import android.support.v17.leanback.widget.RowPresenter;
import android.support.v17.leanback.widget.VerticalGridPresenter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.FrameLayout;
import android.widget.Toast;
import com.google.gson.Gson;
/**
* Sample {@link BrowseFragment} implementation showcasing the use of {@link PageRow} and
* {@link ListRow}.
*/
public class PageAndListRowFragment extends BrowseFragment {
private static final long HEADER_ID_1 = 1;
private static final String HEADER_NAME_1 = "Page Fragment";
private static final long HEADER_ID_2 = 2;
private static final String HEADER_NAME_2 = "Rows Fragment";
private static final long HEADER_ID_3 = 3;
private static final String HEADER_NAME_3 = "Settings Fragment";
private static final long HEADER_ID_4 = 4;
private static final String HEADER_NAME_4 = "User agreement Fragment";
private BackgroundManager mBackgroundManager;
private ArrayObjectAdapter mRowsAdapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setupUi();
loadData();
mBackgroundManager = BackgroundManager.getInstance(getActivity());
mBackgroundManager.attach(getActivity().getWindow());
getMainFragmentRegistry().registerFragment(PageRow.class,
new PageRowFragmentFactory(mBackgroundManager));
}
private void setupUi() {
setHeadersState(HEADERS_ENABLED);
setHeadersTransitionOnBackEnabled(true);
setBrandColor(getResources().getColor(R.color.fastlane_background));
setTitle("Title goes here");
setOnSearchClickedListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Toast.makeText(
getActivity(), getString(R.string.implement_search), Toast.LENGTH_SHORT)
.show();
}
});
prepareEntranceTransition();
}
private void loadData() {
mRowsAdapter = new ArrayObjectAdapter(new ListRowPresenter());
setAdapter(mRowsAdapter);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
createRows();
startEntranceTransition();
}
}, 2000);
}
private void createRows() {
HeaderItem headerItem1 = new HeaderItem(HEADER_ID_1, HEADER_NAME_1);
PageRow pageRow1 = new PageRow(headerItem1);
mRowsAdapter.add(pageRow1);
HeaderItem headerItem2 = new HeaderItem(HEADER_ID_2, HEADER_NAME_2);
PageRow pageRow2 = new PageRow(headerItem2);
mRowsAdapter.add(pageRow2);
HeaderItem headerItem3 = new HeaderItem(HEADER_ID_3, HEADER_NAME_3);
PageRow pageRow3 = new PageRow(headerItem3);
mRowsAdapter.add(pageRow3);
HeaderItem headerItem4 = new HeaderItem(HEADER_ID_4, HEADER_NAME_4);
PageRow pageRow4 = new PageRow(headerItem4);
mRowsAdapter.add(pageRow4);
}
private static class PageRowFragmentFactory extends BrowseFragment.FragmentFactory {
private final BackgroundManager mBackgroundManager;
PageRowFragmentFactory(BackgroundManager backgroundManager) {
this.mBackgroundManager = backgroundManager;
}
@Override
public Fragment createFragment(Object rowObj) {
Row row = (Row)rowObj;
mBackgroundManager.setDrawable(null);
if (row.getHeaderItem().getId() == HEADER_ID_1) {
return new SampleFragmentA();
} else if (row.getHeaderItem().getId() == HEADER_ID_2) {
return new SampleFragmentB();
} else if (row.getHeaderItem().getId() == HEADER_ID_3) {
return new SettingsFragment();
} else if (row.getHeaderItem().getId() == HEADER_ID_4) {
return new WebViewFragment();
}
throw new IllegalArgumentException(String.format("Invalid row %s", rowObj));
}
}
public static class PageFragmentAdapterImpl extends MainFragmentAdapter<SampleFragmentA> {
public PageFragmentAdapterImpl(SampleFragmentA fragment) {
super(fragment);
}
}
/**
* Simple page fragment implementation.
*/
public static class SampleFragmentA extends GridFragment {
private static final int COLUMNS = 4;
private final int ZOOM_FACTOR = FocusHighlight.ZOOM_FACTOR_SMALL;
private ArrayObjectAdapter mAdapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setupAdapter();
loadData();
getMainFragmentAdapter().getFragmentHost().notifyDataReady(getMainFragmentAdapter());
}
private void setupAdapter() {
VerticalGridPresenter presenter = new VerticalGridPresenter(ZOOM_FACTOR);
presenter.setNumberOfColumns(COLUMNS);
setGridPresenter(presenter);
CardPresenterSelector cardPresenter = new CardPresenterSelector(getActivity());
mAdapter = new ArrayObjectAdapter(cardPresenter);
setAdapter(mAdapter);
setOnItemViewClickedListener(new OnItemViewClickedListener() {
@Override
public void onItemClicked(
Presenter.ViewHolder itemViewHolder,
Object item,
RowPresenter.ViewHolder rowViewHolder,
Row row) {
Card card = (Card)item;
Toast.makeText(getActivity(),
"Clicked on "+card.getTitle(),
Toast.LENGTH_SHORT).show();
}
});
}
private void loadData() {
String json = Utils.inputStreamToString(getResources().openRawResource(
R.raw.grid_example));
CardRow cardRow = new Gson().fromJson(json, CardRow.class);
mAdapter.addAll(0, cardRow.getCards());
}
}
/**
* Page fragment embeds a rows fragment.
*/
public static class SampleFragmentB extends RowsFragment {
private final ArrayObjectAdapter mRowsAdapter;
public SampleFragmentB() {
mRowsAdapter = new ArrayObjectAdapter(new ShadowRowPresenterSelector());
setAdapter(mRowsAdapter);
setOnItemViewClickedListener(new OnItemViewClickedListener() {
@Override
public void onItemClicked(
Presenter.ViewHolder itemViewHolder,
Object item,
RowPresenter.ViewHolder rowViewHolder,
Row row) {
Toast.makeText(getActivity(), "Implement click handler", Toast.LENGTH_SHORT)
.show();
}
});
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
createRows();
getMainFragmentAdapter().getFragmentHost().notifyDataReady(getMainFragmentAdapter());
}
private void createRows() {
String json = Utils.inputStreamToString(getResources().openRawResource(
R.raw.page_row_example));
CardRow[] rows = new Gson().fromJson(json, CardRow[].class);
for (CardRow row : rows) {
if (row.getType() == CardRow.TYPE_DEFAULT) {
mRowsAdapter.add(createCardRow(row));
}
}
}
private Row createCardRow(CardRow cardRow) {
PresenterSelector presenterSelector = new CardPresenterSelector(getActivity());
ArrayObjectAdapter adapter = new ArrayObjectAdapter(presenterSelector);
for (Card card : cardRow.getCards()) {
adapter.add(card);
}
HeaderItem headerItem = new HeaderItem(cardRow.getTitle());
return new CardListRow(headerItem, adapter, cardRow);
}
}
public static class SettingsFragment extends RowsFragment {
private final ArrayObjectAdapter mRowsAdapter;
public SettingsFragment() {
ListRowPresenter selector = new ListRowPresenter();
selector.setNumRows(2);
mRowsAdapter = new ArrayObjectAdapter(selector);
setAdapter(mRowsAdapter);
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
loadData();
}
}, 200);
}
private void loadData() {
if (isAdded()) {
String json = Utils.inputStreamToString(getResources().openRawResource(
R.raw.icon_example));
CardRow cardRow = new Gson().fromJson(json, CardRow.class);
mRowsAdapter.add(createCardRow(cardRow));
getMainFragmentAdapter().getFragmentHost().notifyDataReady(
getMainFragmentAdapter());
}
}
private ListRow createCardRow(CardRow cardRow) {
SettingsIconPresenter iconCardPresenter = new SettingsIconPresenter(getActivity());
ArrayObjectAdapter adapter = new ArrayObjectAdapter(iconCardPresenter);
for(Card card : cardRow.getCards()) {
adapter.add(card);
}
HeaderItem headerItem = new HeaderItem(cardRow.getTitle());
return new CardListRow(headerItem, adapter, cardRow);
}
}
public static class WebViewFragment extends Fragment implements MainFragmentAdapterProvider {
private MainFragmentAdapter mMainFragmentAdapter = new MainFragmentAdapter(this);
private WebView mWebview;
@Override
public MainFragmentAdapter getMainFragmentAdapter() {
return mMainFragmentAdapter;
}
@Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
FrameLayout root = new FrameLayout(getActivity());
FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(
FrameLayout.LayoutParams.MATCH_PARENT,
FrameLayout.LayoutParams.MATCH_PARENT);
lp.setMarginStart(32);
mWebview = new WebView(getActivity());
mWebview.setWebViewClient(new WebViewClient());
mWebview.getSettings().setJavaScriptEnabled(true);
root.addView(mWebview, lp);
return root;
}
@Override
public void onResume() {
super.onResume();
mWebview.loadUrl("https://www.google.com/policies/terms");
getMainFragmentAdapter().getFragmentHost().notifyDataReady(getMainFragmentAdapter());
}
}
}