Java tutorial
/* Copyright 2017 Andrew Dawson * * This file is part of Tusky. * * Tusky is free software: you can redistribute it and/or modify it under the terms of the GNU * Lesser General Public License as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser * General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License along with Tusky. If * not, see <http://www.gnu.org/licenses/>. */ package com.keylesspalace.tusky.activity; import android.app.NotificationManager; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.content.pm.PackageManager; import android.graphics.Typeface; import android.graphics.drawable.Drawable; import android.net.Uri; import android.os.Bundle; import android.os.PersistableBundle; import android.support.design.widget.FloatingActionButton; import android.support.design.widget.TabLayout; import android.support.v4.view.ViewPager; import android.text.SpannableStringBuilder; import android.text.Spanned; import android.text.TextUtils; import android.text.style.StyleSpan; import android.view.View; import android.widget.ImageView; import android.widget.TextView; import com.arlib.floatingsearchview.FloatingSearchView; import com.arlib.floatingsearchview.suggestions.SearchSuggestionsAdapter; import com.arlib.floatingsearchview.suggestions.model.SearchSuggestion; import com.keylesspalace.tusky.utils.Log; import com.keylesspalace.tusky.service.MyFirebaseMessagingService; import com.keylesspalace.tusky.R; import com.keylesspalace.tusky.utils.ThemeUtils; import com.keylesspalace.tusky.adapter.TimelinePagerAdapter; import com.keylesspalace.tusky.entity.Account; import com.keylesspalace.tusky.utils.Utils; import com.mikepenz.google_material_typeface_library.GoogleMaterial; import com.mikepenz.materialdrawer.AccountHeader; import com.mikepenz.materialdrawer.AccountHeaderBuilder; import com.mikepenz.materialdrawer.Drawer; import com.mikepenz.materialdrawer.DrawerBuilder; import com.mikepenz.materialdrawer.model.DividerDrawerItem; import com.mikepenz.materialdrawer.model.PrimaryDrawerItem; import com.mikepenz.materialdrawer.model.ProfileDrawerItem; import com.mikepenz.materialdrawer.model.SecondaryDrawerItem; import com.mikepenz.materialdrawer.model.interfaces.IDrawerItem; import com.mikepenz.materialdrawer.util.AbstractDrawerImageLoader; import com.mikepenz.materialdrawer.util.DrawerImageLoader; import com.squareup.picasso.Picasso; import java.util.ArrayList; import java.util.List; import java.util.Stack; import butterknife.BindView; import butterknife.ButterKnife; import retrofit2.Call; import retrofit2.Callback; import retrofit2.Response; public class MainActivity extends BaseActivity { private static final String TAG = "MainActivity"; // logging tag and Volley request tag private String loggedInAccountId; private String loggedInAccountUsername; private Stack<Integer> pageHistory; private AccountHeader headerResult; private Drawer drawer; @BindView(R.id.floating_search_view) FloatingSearchView searchView; @BindView(R.id.floating_btn) public FloatingActionButton floatingBtn; @BindView(R.id.tab_layout) TabLayout tabLayout; @BindView(R.id.pager) ViewPager viewPager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); pageHistory = new Stack<>(); if (savedInstanceState != null) { List<Integer> restoredHistory = savedInstanceState.getIntegerArrayList("pageHistory"); if (restoredHistory != null) { pageHistory.addAll(restoredHistory); } } ButterKnife.bind(this); floatingBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(getApplicationContext(), ComposeActivity.class); startActivity(intent); } }); setupDrawer(); setupSearchView(); /* Fetch user info while we're doing other things. This has to be after setting up the * drawer, though, because its callback touches the header in the drawer. */ fetchUserInfo(); // Setup the tabs and timeline pager. TimelinePagerAdapter adapter = new TimelinePagerAdapter(getSupportFragmentManager()); String[] pageTitles = { getString(R.string.title_public_local), getString(R.string.title_public_federated), getString(R.string.title_home), getString(R.string.title_notifications), }; adapter.setPageTitles(pageTitles); int pageMargin = getResources().getDimensionPixelSize(R.dimen.tab_page_margin); viewPager.setPageMargin(pageMargin); Drawable pageMarginDrawable = ThemeUtils.getDrawable(this, R.attr.tab_page_margin_drawable, R.drawable.tab_page_margin_dark); viewPager.setPageMarginDrawable(pageMarginDrawable); viewPager.setAdapter(adapter); tabLayout.setupWithViewPager(viewPager); tabLayout.getTabAt(2).setIcon(R.drawable.ic_local_24dp); tabLayout.getTabAt(3).setIcon(R.drawable.ic_public_24dp); tabLayout.getTabAt(0).setIcon(R.drawable.ic_home_24dp); tabLayout.getTabAt(1).setIcon(R.drawable.ic_notifications_24dp); tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() { @Override public void onTabSelected(TabLayout.Tab tab) { viewPager.setCurrentItem(tab.getPosition()); if (pageHistory.isEmpty()) { pageHistory.push(0); } if (pageHistory.contains(tab.getPosition())) { pageHistory.remove(pageHistory.indexOf(tab.getPosition())); } pageHistory.push(tab.getPosition()); tintTab(tab, true); } @Override public void onTabUnselected(TabLayout.Tab tab) { tintTab(tab, false); } @Override public void onTabReselected(TabLayout.Tab tab) { } }); Intent intent = getIntent(); int tabSelected = 0; if (intent != null) { int tabPosition = intent.getIntExtra("tab_position", 0); if (tabPosition != 0) { TabLayout.Tab tab = tabLayout.getTabAt(tabPosition); if (tab != null) { tab.select(); tabSelected = tabPosition; } } } for (int i = 0; i < 4; i++) { tintTab(tabLayout.getTabAt(i), i == tabSelected); } // Setup push notifications if (arePushNotificationsEnabled()) enablePushNotifications(); } @Override protected void onResume() { super.onResume(); SharedPreferences notificationPreferences = getApplicationContext().getSharedPreferences("Notifications", MODE_PRIVATE); SharedPreferences.Editor editor = notificationPreferences.edit(); editor.putString("current", "[]"); editor.apply(); ((NotificationManager) (getSystemService(NOTIFICATION_SERVICE))) .cancel(MyFirebaseMessagingService.NOTIFY_ID); } @Override public void onSaveInstanceState(Bundle outState, PersistableBundle outPersistentState) { ArrayList<Integer> pageHistoryList = new ArrayList<>(); pageHistoryList.addAll(pageHistory); outState.putIntegerArrayList("pageHistory", pageHistoryList); super.onSaveInstanceState(outState, outPersistentState); } private void tintTab(TabLayout.Tab tab, boolean tinted) { int color = (tinted) ? R.attr.tab_icon_selected_tint : R.attr.toolbar_icon_tint; ThemeUtils.setDrawableTint(this, tab.getIcon(), color); } private void setupDrawer() { headerResult = new AccountHeaderBuilder().withActivity(this).withSelectionListEnabledForSingleProfile(false) .withDividerBelowHeader(false).withCompactStyle(true).build(); DrawerImageLoader.init(new AbstractDrawerImageLoader() { @Override public void set(ImageView imageView, Uri uri, Drawable placeholder) { Picasso.with(imageView.getContext()).load(uri).placeholder(placeholder).into(imageView); } @Override public void cancel(ImageView imageView) { Picasso.with(imageView.getContext()).cancelRequest(imageView); } }); drawer = new DrawerBuilder().withActivity(this) //.withToolbar(toolbar) .withAccountHeader(headerResult).withHasStableIds(true).withSelectedItem(-1) .addDrawerItems( new PrimaryDrawerItem().withIdentifier(0).withName(R.string.action_view_profile) .withSelectable(false).withIcon(GoogleMaterial.Icon.gmd_person), new PrimaryDrawerItem().withIdentifier(1) .withName(getString(R.string.action_view_favourites)).withSelectable(false) .withIcon(GoogleMaterial.Icon.gmd_star), new PrimaryDrawerItem().withIdentifier(2).withName(getString(R.string.action_view_blocks)) .withSelectable(false).withIcon(GoogleMaterial.Icon.gmd_block), new PrimaryDrawerItem().withIdentifier(5).withName("#gopseudo").withSelectable(false) .withIcon(R.mipmap.ic_evil_logo)) .withOnDrawerItemClickListener(new Drawer.OnDrawerItemClickListener() { @Override public boolean onItemClick(View view, int position, IDrawerItem drawerItem) { if (drawerItem != null) { long drawerItemIdentifier = drawerItem.getIdentifier(); if (drawerItemIdentifier == 0) { if (loggedInAccountId != null) { Intent intent = new Intent(MainActivity.this, AccountActivity.class); intent.putExtra("id", loggedInAccountId); startActivity(intent); } } else if (drawerItemIdentifier == 1) { Intent intent = new Intent(MainActivity.this, FavouritesActivity.class); startActivity(intent); } else if (drawerItemIdentifier == 2) { Intent intent = new Intent(MainActivity.this, BlocksActivity.class); startActivity(intent); } else if (drawerItemIdentifier == 3) { Intent intent = new Intent(MainActivity.this, PreferencesActivity.class); startActivity(intent); } else if (drawerItemIdentifier == 4) { logout(); } else if (drawerItemIdentifier == 5) { if (Utils.isPackageInstalled("co.gopseudo.android", MainActivity.this.getPackageManager())) { PackageManager pm = MainActivity.this.getPackageManager(); Intent launchIntent = pm.getLaunchIntentForPackage("co.gopseudo.android"); MainActivity.this.startActivity(launchIntent); } else { Utils.urlIntent(MainActivity.this, "https://play.google.com/store/apps/details?id=co.gopseudo.android"); } } } return false; } }).build(); drawer.addStickyFooterItem(new SecondaryDrawerItem().withIdentifier(3) .withName(getString(R.string.action_view_preferences)).withSelectable(false)); drawer.addStickyFooterItem(new SecondaryDrawerItem().withIdentifier(4) .withName(getString(R.string.action_logout)).withSelectable(false)); } private void logout() { if (arePushNotificationsEnabled()) disablePushNotifications(); SharedPreferences preferences = getSharedPreferences(getString(R.string.preferences_file_key), Context.MODE_PRIVATE); SharedPreferences.Editor editor = preferences.edit(); editor.remove("domain"); editor.remove("accessToken"); editor.apply(); Intent intent = new Intent(MainActivity.this, LoginActivity.class); startActivity(intent); finish(); } private void setupSearchView() { searchView.attachNavigationDrawerToMenuButton(drawer.getDrawerLayout()); searchView.setOnQueryChangeListener(new FloatingSearchView.OnQueryChangeListener() { @Override public void onSearchTextChanged(String oldQuery, String newQuery) { if (!oldQuery.equals("") && newQuery.equals("")) { searchView.clearSuggestions(); return; } if (newQuery.length() < 3) { return; } searchView.showProgress(); mastodonAPI.searchAccounts(newQuery, false, 5).enqueue(new Callback<List<Account>>() { @Override public void onResponse(Call<List<Account>> call, Response<List<Account>> response) { if (response.isSuccessful()) { searchView.swapSuggestions(response.body()); searchView.hideProgress(); } else { searchView.hideProgress(); } } @Override public void onFailure(Call<List<Account>> call, Throwable t) { searchView.hideProgress(); } }); } }); searchView.setOnSearchListener(new FloatingSearchView.OnSearchListener() { @Override public void onSuggestionClicked(SearchSuggestion searchSuggestion) { Account accountSuggestion = (Account) searchSuggestion; Intent intent = new Intent(MainActivity.this, AccountActivity.class); intent.putExtra("id", accountSuggestion.id); startActivity(intent); } @Override public void onSearchAction(String currentQuery) { } }); searchView.setOnBindSuggestionCallback(new SearchSuggestionsAdapter.OnBindSuggestionCallback() { @Override public void onBindSuggestion(View suggestionView, ImageView leftIcon, TextView textView, SearchSuggestion item, int itemPosition) { Account accountSuggestion = ((Account) item); Picasso.with(MainActivity.this).load(accountSuggestion.avatar) .placeholder(R.drawable.avatar_default).into(leftIcon); String searchStr = accountSuggestion.getDisplayName() + " " + accountSuggestion.username; final SpannableStringBuilder str = new SpannableStringBuilder(searchStr); str.setSpan(new StyleSpan(Typeface.BOLD), 0, accountSuggestion.getDisplayName().length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); textView.setText(str); textView.setMaxLines(1); textView.setEllipsize(TextUtils.TruncateAt.END); } }); } private void fetchUserInfo() { SharedPreferences preferences = getSharedPreferences(getString(R.string.preferences_file_key), Context.MODE_PRIVATE); final String domain = preferences.getString("domain", null); String id = preferences.getString("loggedInAccountId", null); String username = preferences.getString("loggedInAccountUsername", null); if (id != null && username != null) { loggedInAccountId = id; loggedInAccountUsername = username; } mastodonAPI.accountVerifyCredentials().enqueue(new Callback<Account>() { @Override public void onResponse(Call<Account> call, Response<Account> response) { if (!response.isSuccessful()) { onFetchUserInfoFailure(new Exception(response.message())); return; } Account me = response.body(); ImageView background = headerResult.getHeaderBackgroundView(); int backgroundWidth = background.getWidth(); int backgroundHeight = background.getHeight(); if (backgroundWidth == 0 || backgroundHeight == 0) { /* The header ImageView may not be layed out when the verify credentials call * returns so measure the dimensions and use those. */ background.measure(View.MeasureSpec.EXACTLY, View.MeasureSpec.EXACTLY); backgroundWidth = background.getMeasuredWidth(); backgroundHeight = background.getMeasuredHeight(); } Picasso.with(MainActivity.this).load(me.header).placeholder(R.drawable.account_header_missing) .resize(backgroundWidth, backgroundHeight).centerCrop().into(background); headerResult.addProfiles(new ProfileDrawerItem().withName(me.getDisplayName()) .withEmail(String.format("%s@%s", me.username, domain)).withIcon(me.avatar)); onFetchUserInfoSuccess(me.id, me.username); } @Override public void onFailure(Call<Account> call, Throwable t) { onFetchUserInfoFailure((Exception) t); } }); } private void onFetchUserInfoSuccess(String id, String username) { loggedInAccountId = id; loggedInAccountUsername = username; SharedPreferences preferences = getSharedPreferences(getString(R.string.preferences_file_key), Context.MODE_PRIVATE); SharedPreferences.Editor editor = preferences.edit(); editor.putString("loggedInAccountId", loggedInAccountId); editor.putString("loggedInAccountUsername", loggedInAccountUsername); editor.apply(); } private void onFetchUserInfoFailure(Exception exception) { Log.e(TAG, "Failed to fetch user info. " + exception.getMessage()); } @Override public void onBackPressed() { if (drawer != null && drawer.isDrawerOpen()) { drawer.closeDrawer(); } else if (pageHistory.size() < 2) { super.onBackPressed(); } else { pageHistory.pop(); viewPager.setCurrentItem(pageHistory.peek()); } } }