Java tutorial
/* * Copyright 2015 Synced Synapse. All rights reserved. * * 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.syncedsynapse.kore2.ui; import android.app.Activity; import android.content.Context; import android.content.res.Resources; import android.os.Bundle; import android.os.Handler; import android.support.v4.app.Fragment; import android.support.v4.widget.SwipeRefreshLayout; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.GridView; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; import com.syncedsynapse.kore2.R; import com.syncedsynapse.kore2.host.HostManager; import com.syncedsynapse.kore2.jsonrpc.ApiCallback; import com.syncedsynapse.kore2.jsonrpc.method.Addons; import com.syncedsynapse.kore2.jsonrpc.type.AddonType; import com.syncedsynapse.kore2.utils.LogUtils; import com.syncedsynapse.kore2.utils.UIUtils; import java.util.List; import butterknife.ButterKnife; import butterknife.InjectView; /** * Fragment that presents the movie list */ public class AddonListFragment extends Fragment implements SwipeRefreshLayout.OnRefreshListener { private static final String TAG = LogUtils.makeLogTag(AddonListFragment.class); public interface OnAddonSelectedListener { public void onAddonSelected(String addonId, String addonTitle); } // Activity listener private OnAddonSelectedListener listenerActivity; private HostManager hostManager; @InjectView(R.id.list) GridView addonsGridView; @InjectView(R.id.swipe_refresh_layout) SwipeRefreshLayout swipeRefreshLayout; @InjectView(android.R.id.empty) TextView emptyView; /** * Handler on which to post RPC callbacks */ private Handler callbackHandler = new Handler(); private AddonsAdapter adapter = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { ViewGroup root = (ViewGroup) inflater.inflate(R.layout.fragment_generic_media_list, container, false); ButterKnife.inject(this, root); hostManager = HostManager.getInstance(getActivity()); swipeRefreshLayout.setOnRefreshListener(this); emptyView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { onRefresh(); } }); addonsGridView.setEmptyView(emptyView); addonsGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { // Get the movie id from the tag ViewHolder tag = (ViewHolder) view.getTag(); // Notify the activity listenerActivity.onAddonSelected(tag.addonId, tag.addonName); } }); if (adapter == null) { adapter = new AddonsAdapter(getActivity(), R.layout.grid_item_addon); } addonsGridView.setAdapter(adapter); // Pad main content view to overlap with bottom system bar // UIUtils.setPaddingForSystemBars(getActivity(), addonsGridView, false, false, true); // addonsGridView.setClipToPadding(false); return root; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); setHasOptionsMenu(false); if (adapter.getCount() == 0) callGetAddonsAndSetup(); } @Override public void onAttach(Activity activity) { super.onAttach(activity); try { listenerActivity = (OnAddonSelectedListener) activity; } catch (ClassCastException e) { throw new ClassCastException(activity.toString() + " must implement OnAddonSelectedListener"); } } @Override public void onDetach() { super.onDetach(); listenerActivity = null; } @Override public void onResume() { super.onResume(); } @Override public void onPause() { super.onPause(); } /** * Swipe refresh layout callback */ /** {@inheritDoc} */ @Override public void onRefresh() { if (hostManager.getHostInfo() != null) { callGetAddonsAndSetup(); } else { swipeRefreshLayout.setRefreshing(false); Toast.makeText(getActivity(), R.string.no_xbmc_configured, Toast.LENGTH_SHORT).show(); } } /** * Get the addons list and setup the gridview */ private void callGetAddonsAndSetup() { swipeRefreshLayout.setRefreshing(true); // Get the addon list, this is done asyhnchronously String[] properties = new String[] { AddonType.Fields.NAME, AddonType.Fields.VERSION, AddonType.Fields.SUMMARY, AddonType.Fields.DESCRIPTION, AddonType.Fields.PATH, AddonType.Fields.AUTHOR, AddonType.Fields.THUMBNAIL, AddonType.Fields.DISCLAIMER, AddonType.Fields.FANART, //AddonType.Fields.DEPENDENCIES, AddonType.Fields.BROKEN, AddonType.Fields.EXTRAINFO, AddonType.Fields.RATING, AddonType.Fields.ENABLED }; Addons.GetAddons action = new Addons.GetAddons(properties); action.execute(hostManager.getConnection(), new ApiCallback<List<AddonType.Details>>() { @Override public void onSucess(List<AddonType.Details> result) { if (!isAdded()) return; adapter.clear(); for (AddonType.Details addon : result) { if (addon.type.equals(AddonType.Types.UNKNOWN) || addon.type.equals(AddonType.Types.XBMC_PYTHON_PLUGINSOURCE) || addon.type.equals(AddonType.Types.XBMC_PYTHON_SCRIPT) || addon.type.equals(AddonType.Types.XBMC_ADDON_AUDIO) || addon.type.equals(AddonType.Types.XBMC_ADDON_EXECUTABLE) || addon.type.equals(AddonType.Types.XBMC_ADDON_VIDEO) || addon.type.equals(AddonType.Types.XBMC_ADDON_IMAGE)) { adapter.add(addon); } } // To prevent the empty text from appearing on the first load, set it now emptyView.setText(getString(R.string.no_addons_found_refresh)); adapter.notifyDataSetChanged(); swipeRefreshLayout.setRefreshing(false); } @Override public void onError(int errorCode, String description) { if (!isAdded()) return; // To prevent the empty text from appearing on the first load, set it now emptyView.setText(getString(R.string.no_addons_found_refresh)); Toast.makeText(getActivity(), String.format(getString(R.string.error_getting_addon_info), description), Toast.LENGTH_SHORT).show(); swipeRefreshLayout.setRefreshing(false); } }, callbackHandler); } private class AddonsAdapter extends ArrayAdapter<AddonType.Details> { private HostManager hostManager; private int artWidth, artHeight; public AddonsAdapter(Context context, int resource) { super(context, resource); this.hostManager = HostManager.getInstance(context); // Get the art dimensions Resources resources = context.getResources(); artWidth = (int) (resources.getDimension(R.dimen.addonlist_art_width) / UIUtils.IMAGE_RESIZE_FACTOR); artHeight = (int) (resources.getDimension(R.dimen.addonlist_art_heigth) / UIUtils.IMAGE_RESIZE_FACTOR); } /** {@inheritDoc} */ @Override public View getView(int position, View convertView, ViewGroup parent) { if (convertView == null) { convertView = LayoutInflater.from(getActivity()).inflate(R.layout.grid_item_addon, parent, false); // Setup View holder pattern ViewHolder viewHolder = new ViewHolder(); viewHolder.titleView = (TextView) convertView.findViewById(R.id.title); viewHolder.detailsView = (TextView) convertView.findViewById(R.id.details); viewHolder.artView = (ImageView) convertView.findViewById(R.id.art); convertView.setTag(viewHolder); } final ViewHolder viewHolder = (ViewHolder) convertView.getTag(); AddonType.Details addonDetails = this.getItem(position); // Save the movie id viewHolder.addonId = addonDetails.addonid; viewHolder.addonName = addonDetails.name; viewHolder.titleView.setText(viewHolder.addonName); viewHolder.detailsView.setText(addonDetails.summary); UIUtils.loadImageWithCharacterAvatar(getContext(), hostManager, addonDetails.thumbnail, viewHolder.addonName, viewHolder.artView, artWidth, artHeight); return convertView; } } /** * View holder pattern */ private static class ViewHolder { TextView titleView; TextView detailsView; ImageView artView; String addonId; String addonName; } }