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 org.xbmc.kore.ui; import android.annotation.TargetApi; import android.content.Context; import android.content.SharedPreferences; import android.content.res.Resources; import android.content.res.TypedArray; import android.os.Bundle; import android.os.Handler; import android.support.v4.app.Fragment; import android.text.TextUtils; import android.util.DisplayMetrics; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.ViewTreeObserver; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.ScrollView; import android.widget.TextView; import android.widget.Toast; import com.melnykov.fab.FloatingActionButton; import com.melnykov.fab.ObservableScrollView; import org.xbmc.kore.R; import org.xbmc.kore.host.HostInfo; import org.xbmc.kore.host.HostManager; import org.xbmc.kore.jsonrpc.ApiCallback; import org.xbmc.kore.jsonrpc.method.Addons; import org.xbmc.kore.jsonrpc.type.AddonType; import org.xbmc.kore.utils.LogUtils; import org.xbmc.kore.utils.UIUtils; import org.xbmc.kore.utils.Utils; import java.util.Collections; import java.util.HashSet; import java.util.Set; import butterknife.ButterKnife; import butterknife.InjectView; import butterknife.OnClick; /** * Presents addon details */ public class AddonDetailsFragment extends SharedElementFragment { private static final String TAG = LogUtils.makeLogTag(AddonDetailsFragment.class); public static final String BUNDLE_KEY_ADDONID = "addon_id"; public static final String POSTER_TRANS_NAME = "POSTER_TRANS_NAME"; public static final String BUNDLE_KEY_NAME = "name"; public static final String BUNDLE_KEY_AUTHOR = "author"; public static final String BUNDLE_KEY_SUMMARY = "summary"; public static final String BUNDLE_KEY_VERSION = "version"; public static final String BUNDLE_KEY_DESCRIPTION = "description"; public static final String BUNDLE_KEY_FANART = "fanart"; public static final String BUNDLE_KEY_POSTER = "poster"; public static final String BUNDLE_KEY_ENABLED = "enabled"; public static final String BUNDLE_KEY_BROWSABLE = "browsable"; private HostManager hostManager; private HostInfo hostInfo; /** * Handler on which to post RPC callbacks */ private Handler callbackHandler = new Handler(); // Displayed addon id private String addonId; // Buttons @InjectView(R.id.fab) ImageButton fabButton; @InjectView(R.id.enable_disable) ImageButton enabledButton; @InjectView(R.id.pin_unpin) ImageView pinButton; // Detail views @InjectView(R.id.media_panel) ScrollView mediaPanel; @InjectView(R.id.art) ImageView mediaArt; @InjectView(R.id.poster) ImageView mediaPoster; @InjectView(R.id.media_title) TextView mediaTitle; @InjectView(R.id.media_undertitle) TextView mediaUndertitle; @InjectView(R.id.author) TextView mediaAuthor; @InjectView(R.id.version) TextView mediaVersion; @InjectView(R.id.media_description) TextView mediaDescription; /** * Create a new instance of this, initialized to show the addon addonId */ @TargetApi(21) public static AddonDetailsFragment newInstance(AddonListFragment.ViewHolder vh) { AddonDetailsFragment fragment = new AddonDetailsFragment(); Bundle args = new Bundle(); args.putString(BUNDLE_KEY_ADDONID, vh.addonId); args.putString(BUNDLE_KEY_NAME, vh.addonName); args.putString(BUNDLE_KEY_AUTHOR, vh.author); args.putString(BUNDLE_KEY_VERSION, vh.version); args.putString(BUNDLE_KEY_SUMMARY, vh.summary); args.putString(BUNDLE_KEY_DESCRIPTION, vh.description); args.putString(BUNDLE_KEY_FANART, vh.fanart); args.putString(BUNDLE_KEY_POSTER, vh.poster); args.putBoolean(BUNDLE_KEY_ENABLED, vh.enabled); args.putBoolean(BUNDLE_KEY_BROWSABLE, vh.browsable); if (Utils.isLollipopOrLater()) { args.putString(POSTER_TRANS_NAME, vh.artView.getTransitionName()); } fragment.setArguments(args); return fragment; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @TargetApi(21) @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { Bundle bundle = getArguments(); addonId = bundle.getString(BUNDLE_KEY_ADDONID, null); if ((container == null) || (addonId == null)) { // We're not being shown or there's nothing to show return null; } ViewGroup root = (ViewGroup) inflater.inflate(R.layout.fragment_addon_details, container, false); ButterKnife.inject(this, root); hostManager = HostManager.getInstance(getActivity()); hostInfo = hostManager.getHostInfo(); // Setup dim the fanart when scroll changes. Full dim on 4 * iconSize dp Resources resources = getActivity().getResources(); final int pixelsToTransparent = 4 * resources.getDimensionPixelSize(R.dimen.default_icon_size); mediaPanel.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() { @Override public void onScrollChanged() { float y = mediaPanel.getScrollY(); float newAlpha = Math.min(1, Math.max(0, 1 - (y / pixelsToTransparent))); mediaArt.setAlpha(newAlpha); } }); FloatingActionButton fab = (FloatingActionButton) fabButton; fab.attachToScrollView((ObservableScrollView) mediaPanel); if (Utils.isLollipopOrLater()) { mediaPoster.setTransitionName(bundle.getString(POSTER_TRANS_NAME)); } mediaTitle.setText(bundle.getString(BUNDLE_KEY_NAME)); mediaUndertitle.setText(bundle.getString(BUNDLE_KEY_SUMMARY)); mediaAuthor.setText(bundle.getString(BUNDLE_KEY_AUTHOR)); mediaVersion.setText(bundle.getString(BUNDLE_KEY_VERSION)); mediaDescription.setText(bundle.getString(BUNDLE_KEY_DESCRIPTION)); setImages(bundle.getString(BUNDLE_KEY_POSTER), bundle.getString(BUNDLE_KEY_FANART)); setupEnableButton(bundle.getBoolean(BUNDLE_KEY_ENABLED, false)); if (bundle.getBoolean(BUNDLE_KEY_BROWSABLE, true)) updatePinButton(); // Pad main content view to overlap with bottom system bar // UIUtils.setPaddingForSystemBars(getActivity(), mediaPanel, false, false, true); // mediaPanel.setClipToPadding(false); return root; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); setHasOptionsMenu(false); updateEnabledButton(); } @Override public void onResume() { super.onResume(); } @Override public void onPause() { super.onPause(); } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); // outState.putInt(ADDONID, addonId); } /** * Callbacks for button bar */ @OnClick(R.id.fab) public void onFabClicked(View v) { Addons.ExecuteAddon action = new Addons.ExecuteAddon(addonId); action.execute(hostManager.getConnection(), new ApiCallback<String>() { @Override public void onSuccess(String result) { // Do nothing } @Override public void onError(int errorCode, String description) { if (!isAdded()) return; // Got an error, show toast Toast.makeText(getActivity(), R.string.unable_to_connect_to_xbmc, Toast.LENGTH_SHORT).show(); } }, callbackHandler); } @OnClick(R.id.enable_disable) public void onEnabledClicked(View v) { final Boolean isEnabled = (v.getTag() == null) ? false : (Boolean) v.getTag(); Addons.SetAddonEnabled action = new Addons.SetAddonEnabled(addonId, !isEnabled); action.execute(hostManager.getConnection(), new ApiCallback<String>() { @Override public void onSuccess(String result) { if (!isAdded()) return; int messageResId = (!isEnabled) ? R.string.addon_enabled : R.string.addon_disabled; Toast.makeText(getActivity(), messageResId, Toast.LENGTH_SHORT).show(); setupEnableButton(!isEnabled); } @Override public void onError(int errorCode, String description) { if (!isAdded()) return; Toast.makeText(getActivity(), String.format(getString(R.string.general_error_executing_action), description), Toast.LENGTH_SHORT).show(); } }, callbackHandler); } private void setImages(String poster, String fanart) { Resources resources = getActivity().getResources(); DisplayMetrics displayMetrics = new DisplayMetrics(); getActivity().getWindowManager().getDefaultDisplay().getMetrics(displayMetrics); int artHeight = resources.getDimensionPixelOffset(R.dimen.now_playing_art_height), artWidth = displayMetrics.widthPixels; int posterWidth = resources.getDimensionPixelOffset(R.dimen.addondetail_poster_width); int posterHeight = resources.getDimensionPixelOffset(R.dimen.addondetail_poster_height); UIUtils.loadImageIntoImageview(hostManager, TextUtils.isEmpty(fanart) ? poster : fanart, mediaArt, artWidth, artHeight); UIUtils.loadImageIntoImageview(hostManager, poster, mediaPoster, posterWidth, posterHeight); } private void setupEnableButton(boolean enabled) { // Enabled button if (enabled) { Resources.Theme theme = getActivity().getTheme(); TypedArray styledAttributes = theme.obtainStyledAttributes(new int[] { R.attr.colorAccent }); enabledButton.setColorFilter( styledAttributes.getColor(0, getActivity().getResources().getColor(R.color.accent_default))); styledAttributes.recycle(); fabButton.setVisibility(View.VISIBLE); } else { enabledButton.clearColorFilter(); fabButton.setVisibility(View.GONE); } enabledButton.setTag(enabled); } /** * Returns the shared element if visible * @return View if visible, null otherwise */ @Override public View getSharedElement() { if (UIUtils.isViewInBounds(mediaPanel, mediaPoster)) { return mediaPoster; } return null; } private void updateEnabledButton() { // Get the addon details, this is done asyhnchronously String[] properties = new String[] { AddonType.Fields.ENABLED }; Addons.GetAddonDetails action = new Addons.GetAddonDetails(addonId, properties); action.execute(hostManager.getConnection(), new ApiCallback<AddonType.Details>() { @Override public void onSuccess(AddonType.Details result) { if (!isAdded()) return; setupEnableButton(result.enabled); } @Override public void onError(int errorCode, String description) { if (!isAdded()) return; Toast.makeText(getActivity(), String.format(getString(R.string.error_getting_addon_info), description), Toast.LENGTH_SHORT).show(); } }, callbackHandler); } @OnClick(R.id.pin_unpin) public void onPinClicked(View v) { final boolean isBookmarked = (v.getTag() == null) ? true : !(Boolean) v.getTag(); String name = mediaTitle.getText().toString(); String path = addonId; SharedPreferences prefs = getActivity().getSharedPreferences("addons", Context.MODE_PRIVATE); Set<String> bookmarks = new HashSet<>(prefs.getStringSet("bookmarked", Collections.<String>emptySet())); if (isBookmarked) bookmarks.add(path); else bookmarks.remove(path); prefs.edit().putStringSet("bookmarked", bookmarks).putString("name_" + path, name).apply(); Toast.makeText(getActivity(), isBookmarked ? R.string.addon_pinned : R.string.addon_unpinned, Toast.LENGTH_SHORT).show(); setupPinButton(isBookmarked); } private void setupPinButton(boolean bookmarked) { Resources.Theme theme = getActivity().getTheme(); TypedArray styledAttributes = theme .obtainStyledAttributes(new int[] { R.attr.defaultButtonColorFilter, R.attr.colorAccent }); Resources resources = getActivity().getResources(); // Bookmarked button if (bookmarked) { pinButton.setColorFilter(styledAttributes.getColor(styledAttributes.getIndex(1), resources.getColor(R.color.accent_default))); } else { pinButton.setColorFilter( styledAttributes.getColor(styledAttributes.getIndex(0), resources.getColor(R.color.white))); } styledAttributes.recycle(); pinButton.setTag(bookmarked); pinButton.setVisibility(View.VISIBLE); } private void updatePinButton() { SharedPreferences prefs = getActivity().getSharedPreferences("addons", Context.MODE_PRIVATE); Set<String> bookmarked = prefs.getStringSet("bookmarked", Collections.<String>emptySet()); setupPinButton(bookmarked.contains(addonId)); } }