samples/SupportLeanbackDemos/src/com/example/android/leanback/MainActivity.java

/*
 * Copyright (C) 2014 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 com.example.android.leanback;

import android.app.Activity;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.v17.leanback.app.GuidedStepFragment;
import android.support.v17.leanback.widget.GuidanceStylist.Guidance;
import android.support.v17.leanback.widget.GuidedAction;
import android.support.v4.app.ActivityOptionsCompat;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import java.util.ArrayList;
import java.util.List;

/**
 * Activity that allows navigation among the demo activities.
 */
public class MainActivity extends Activity {

    private GuidedStepFragment mGuidedStepFragment;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        mGuidedStepFragment = new StepFragment();
        GuidedStepFragment.addAsRoot(this, mGuidedStepFragment, android.R.id.content);
    }

    public static class StepFragment extends GuidedStepFragment {

        @Override
        public Guidance onCreateGuidance(Bundle savedInstanceState) {
            String title = getString(R.string.main_title);
            String breadcrumb = getString(R.string.main_breadcrumb);
            String description = "";
            Drawable icon = getActivity().getResources().getDrawable(R.drawable.ic_main_icon);
            return new Guidance(title, description, breadcrumb, icon);
        }

        @Override
        public void onCreateActions(List<GuidedAction> actions, Bundle savedInstanceState) {
            addAction(actions, BrowseActivity.class, R.string.browse, R.string.browse_description);
            addAction(actions, BrowseSupportActivity.class, R.string.browse_support,
                    R.string.browse_support_description);
            addAction(actions, SearchActivity.class, R.string.search, R.string.search_description);
            addAction(actions, SearchSupportActivity.class, R.string.search_support, R.string.search_support_description);
            addAction(actions, DetailsActivity.class, R.string.details, R.string.details_description);
            actions.get(actions.size()-1).getIntent().putExtra(DetailsActivity.EXTRA_ITEM,
                    new PhotoItem("Hello world", R.drawable.gallery_photo_1));
            addAction(actions, DetailsSupportActivity.class, R.string.details_support, R.string.details_support_description);
            actions.get(actions.size()-1).getIntent().putExtra(DetailsSupportActivity.EXTRA_ITEM,
                    new PhotoItem("Hello world", R.drawable.gallery_photo_1));
            addAction(actions, SearchDetailsActivity.class, R.string.search_details,
                    R.string.search_details_description);
            actions.get(actions.size()-1).getIntent().putExtra(SearchDetailsActivity.EXTRA_ITEM,
                    new PhotoItem("Hello world", R.drawable.gallery_photo_1));
            addAction(actions, SearchDetailsSupportActivity.class, R.string.search_details_support,
                    R.string.search_details_support_description);
            actions.get(actions.size()-1).getIntent().putExtra(SearchDetailsSupportActivity.EXTRA_ITEM,
                    new PhotoItem("Hello world", R.drawable.gallery_photo_1));
            addAction(actions, VerticalGridActivity.class, R.string.vgrid,
                    R.string.vgrid_description);
            addAction(actions, VerticalGridSupportActivity.class, R.string.vgrid_support,
                    R.string.vgrid_support_description);
            addAction(actions, GuidedStepActivity.class, R.string.guidedstep,
                    R.string.guidedstep_description);
            addAction(actions, GuidedStepSupportActivity.class, R.string.guidedstepsupport,
                    R.string.guidedstepsupport_description);
            addAction(actions, GuidedStepHalfScreenActivity.class, R.string.guidedstephalfscreen,
                    R.string.guidedstep_description);
            addAction(actions, GuidedStepSupportHalfScreenActivity.class,
                R.string.guidedstepsupporthalfscreen,
                R.string.guidedstep_description);
            addAction(actions, BrowseErrorActivity.class, R.string.browseerror,
                    R.string.browseerror_description);
            addAction(actions, BrowseErrorSupportActivity.class, R.string.browseerror_support,
                    R.string.browseerror_support_description);
            addAction(actions, PlaybackOverlayActivity.class, R.string.playback,
                    R.string.playback_description);
            addAction(actions, PlaybackOverlaySupportActivity.class, R.string.playback_support,
                    R.string.playback_support_description);
            addAction(actions, HorizontalGridTestActivity.class, R.string.hgrid,
                    R.string.hgrid_description);
            addAction(actions, DetailsPresenterSelectionActivity.class,
                    R.string.detail_presenter_options,
                    R.string.detail_presenter_options_description);
            addAction(actions, OnboardingActivity.class,
                    R.string.onboarding,
                    R.string.onboarding_description);
            addAction(actions, OnboardingSupportActivity.class,
                    R.string.onboarding_support,
                    R.string.onboarding_description);
        }

        private void addAction(List<GuidedAction> actions, Class cls, int titleRes, int descRes) {
            actions.add(new GuidedAction.Builder()
                    .intent(new Intent(getActivity(), cls))
                    .title(getString(titleRes))
                    .description(getString(descRes))
                    .build());
        }

        @Override
        public void onGuidedActionClicked(GuidedAction action) {
            Intent intent = action.getIntent();
            if (intent != null) {
                Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity())
                        .toBundle();
                startActivity(intent, bundle);
            }
        }

    }
}