Java tutorial
/* Copyright 2017 Andrew Dawson * * This file is a part of Tusky. * * This program is free software; you can redistribute it and/or modify it under the terms of the * GNU 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 General * Public License for more details. * * You should have received a copy of the GNU General Public License along with Tusky; if not, * see <http://www.gnu.org/licenses>. */ package com.keylesspalace.tusky; import android.arch.lifecycle.Lifecycle; import android.content.Intent; import android.graphics.Color; import android.graphics.drawable.Drawable; import android.net.Uri; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.annotation.Nullable; import android.support.design.widget.FloatingActionButton; import android.support.design.widget.TabLayout; import android.support.graphics.drawable.VectorDrawableCompat; import android.support.text.emoji.EmojiCompat; import android.support.v4.app.Fragment; import android.support.v4.content.ContextCompat; import android.support.v4.view.ViewPager; import android.support.v7.app.AlertDialog; import android.util.Log; import android.view.KeyEvent; import android.widget.ImageButton; import android.widget.ImageView; import com.keylesspalace.tusky.appstore.EventHub; import com.keylesspalace.tusky.appstore.ProfileEditedEvent; import com.keylesspalace.tusky.db.AccountEntity; import com.keylesspalace.tusky.entity.Account; import com.keylesspalace.tusky.interfaces.ActionButtonActivity; import com.keylesspalace.tusky.pager.TimelinePagerAdapter; import com.keylesspalace.tusky.util.CustomEmojiHelper; import com.keylesspalace.tusky.util.NotificationHelper; import com.keylesspalace.tusky.util.ThemeUtils; 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.ProfileSettingDrawerItem; import com.mikepenz.materialdrawer.model.SecondaryDrawerItem; import com.mikepenz.materialdrawer.model.interfaces.IDrawerItem; import com.mikepenz.materialdrawer.model.interfaces.IProfile; 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 javax.inject.Inject; import dagger.android.AndroidInjector; import dagger.android.DispatchingAndroidInjector; import dagger.android.support.HasSupportFragmentInjector; import io.reactivex.android.schedulers.AndroidSchedulers; import retrofit2.Call; import retrofit2.Callback; import retrofit2.Response; import static com.uber.autodispose.AutoDispose.autoDisposable; import static com.uber.autodispose.android.lifecycle.AndroidLifecycleScopeProvider.from; public final class MainActivity extends BottomSheetActivity implements ActionButtonActivity, HasSupportFragmentInjector { private static final String TAG = "MainActivity"; // logging tag private static final long DRAWER_ITEM_ADD_ACCOUNT = -13; private static final long DRAWER_ITEM_EDIT_PROFILE = 0; private static final long DRAWER_ITEM_FAVOURITES = 1; private static final long DRAWER_ITEM_MUTED_USERS = 2; private static final long DRAWER_ITEM_BLOCKED_USERS = 3; private static final long DRAWER_ITEM_SEARCH = 4; private static final long DRAWER_ITEM_PREFERENCES = 5; private static final long DRAWER_ITEM_ABOUT = 6; private static final long DRAWER_ITEM_LOG_OUT = 7; private static final long DRAWER_ITEM_FOLLOW_REQUESTS = 8; private static final long DRAWER_ITEM_SAVED_TOOT = 9; private static final long DRAWER_ITEM_LISTS = 10; @Inject public DispatchingAndroidInjector<Fragment> fragmentInjector; @Inject public EventHub eventHub; private FloatingActionButton composeButton; private AccountHeader headerResult; private Drawer drawer; private ViewPager viewPager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Intent intent = getIntent(); int tabPosition = 0; if (intent != null) { long accountId = intent.getLongExtra(NotificationHelper.ACCOUNT_ID, -1); if (accountId != -1) { // user clicked a notification, show notification tab and switch user if necessary tabPosition = 1; AccountEntity account = accountManager.getActiveAccount(); if (account == null || accountId != account.getId()) { accountManager.setActiveAccount(accountId); } } } setContentView(R.layout.activity_main); composeButton = findViewById(R.id.floating_btn); ImageButton drawerToggle = findViewById(R.id.drawer_toggle); TabLayout tabLayout = findViewById(R.id.tab_layout); viewPager = findViewById(R.id.pager); composeButton.setOnClickListener(v -> { Intent composeIntent = new Intent(getApplicationContext(), ComposeActivity.class); startActivity(composeIntent); }); setupDrawer(); // Setup the navigation drawer toggle button. ThemeUtils.setDrawableTint(this, drawerToggle.getDrawable(), R.attr.toolbar_icon_tint); drawerToggle.setOnClickListener(v -> drawer.openDrawer()); /* Fetch user info while we're doing other things. This has to be done 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()); 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); int[] tabIcons = { R.drawable.ic_home_24dp, R.drawable.ic_notifications_24dp, R.drawable.ic_local_24dp, R.drawable.ic_public_24dp, }; String[] pageTitles = { getString(R.string.title_home), getString(R.string.title_notifications), getString(R.string.title_public_local), getString(R.string.title_public_federated), }; for (int i = 0; i < 4; i++) { TabLayout.Tab tab = tabLayout.getTabAt(i); tab.setIcon(tabIcons[i]); tab.setContentDescription(pageTitles[i]); } if (tabPosition != 0) { TabLayout.Tab tab = tabLayout.getTabAt(tabPosition); if (tab != null) { tab.select(); } else { tabPosition = 0; } } tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() { @Override public void onTabSelected(TabLayout.Tab tab) { viewPager.setCurrentItem(tab.getPosition()); tintTab(tab, true); if (tab.getPosition() == 1) { NotificationHelper.clearNotificationsForActiveAccount(MainActivity.this, accountManager); } } @Override public void onTabUnselected(TabLayout.Tab tab) { tintTab(tab, false); } @Override public void onTabReselected(TabLayout.Tab tab) { } }); for (int i = 0; i < 4; i++) { tintTab(tabLayout.getTabAt(i), i == tabPosition); } // Setup push notifications if (NotificationHelper.areNotificationsEnabled(this, accountManager)) { enablePushNotifications(); } else { disablePushNotifications(); } eventHub.getEvents().observeOn(AndroidSchedulers.mainThread()) .as(autoDisposable(from(this, Lifecycle.Event.ON_DESTROY))).subscribe(event -> { if (event instanceof ProfileEditedEvent) { onFetchUserInfoSuccess(((ProfileEditedEvent) event).getNewProfileData()); } }); } @Override protected void onResume() { super.onResume(); NotificationHelper.clearNotificationsForActiveAccount(this, accountManager); } @Override public void onBackPressed() { if (drawer != null && drawer.isDrawerOpen()) { drawer.closeDrawer(); } else if (viewPager.getCurrentItem() != 0) { viewPager.setCurrentItem(0); } else { super.onBackPressed(); } } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_MENU: { if (drawer.isDrawerOpen()) { drawer.closeDrawer(); } else { drawer.openDrawer(); } return true; } case KeyEvent.KEYCODE_SEARCH: { startActivityWithSlideInAnimation(new Intent(this, SearchActivity.class)); return true; } } return super.onKeyDown(keyCode, event); } 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).withDividerBelowHeader(false) .withHeaderBackgroundScaleType(ImageView.ScaleType.CENTER_CROP).withCurrentProfileHiddenInList(true) .withOnAccountHeaderListener((view, profile, current) -> handleProfileClick(profile, current)) .addProfiles(new ProfileSettingDrawerItem().withIdentifier(DRAWER_ITEM_ADD_ACCOUNT) .withName(R.string.add_account_name).withDescription(R.string.add_account_description) .withIcon(GoogleMaterial.Icon.gmd_add)) .build(); headerResult.getView().findViewById(R.id.material_drawer_account_header_current) .setContentDescription(getString(R.string.action_view_profile)); ImageView background = headerResult.getHeaderBackgroundView(); background.setColorFilter(ContextCompat.getColor(this, R.color.header_background_filter)); background.setBackgroundColor(ContextCompat.getColor(this, R.color.window_background_dark)); DrawerImageLoader.init(new AbstractDrawerImageLoader() { @Override public void set(ImageView imageView, Uri uri, Drawable placeholder, String tag) { Picasso.with(imageView.getContext()).load(uri).placeholder(placeholder).into(imageView); } @Override public void cancel(ImageView imageView) { Picasso.with(imageView.getContext()).cancelRequest(imageView); } }); VectorDrawableCompat muteDrawable = VectorDrawableCompat.create(getResources(), R.drawable.ic_mute_24dp, getTheme()); ThemeUtils.setDrawableTint(this, muteDrawable, R.attr.toolbar_icon_tint); List<IDrawerItem> listItems = new ArrayList<>(11); listItems.add(new PrimaryDrawerItem().withIdentifier(DRAWER_ITEM_EDIT_PROFILE) .withName(R.string.action_edit_profile).withSelectable(false) .withIcon(GoogleMaterial.Icon.gmd_person)); listItems.add(new PrimaryDrawerItem().withIdentifier(DRAWER_ITEM_FAVOURITES) .withName(R.string.action_view_favourites).withSelectable(false) .withIcon(GoogleMaterial.Icon.gmd_star)); listItems.add(new PrimaryDrawerItem().withIdentifier(DRAWER_ITEM_LISTS).withName(R.string.action_lists) .withSelectable(false).withIcon(GoogleMaterial.Icon.gmd_list)); listItems.add(new PrimaryDrawerItem().withIdentifier(DRAWER_ITEM_MUTED_USERS) .withName(R.string.action_view_mutes).withSelectable(false).withIcon(muteDrawable)); listItems.add(new PrimaryDrawerItem().withIdentifier(DRAWER_ITEM_BLOCKED_USERS) .withName(R.string.action_view_blocks).withSelectable(false) .withIcon(GoogleMaterial.Icon.gmd_block)); listItems.add(new PrimaryDrawerItem().withIdentifier(DRAWER_ITEM_SEARCH).withName(R.string.action_search) .withSelectable(false).withIcon(GoogleMaterial.Icon.gmd_search)); listItems.add(new PrimaryDrawerItem().withIdentifier(DRAWER_ITEM_SAVED_TOOT) .withName(R.string.action_access_saved_toot).withSelectable(false) .withIcon(GoogleMaterial.Icon.gmd_save)); listItems.add(new DividerDrawerItem()); listItems.add(new SecondaryDrawerItem().withIdentifier(DRAWER_ITEM_PREFERENCES) .withName(R.string.action_view_preferences).withSelectable(false) .withIcon(GoogleMaterial.Icon.gmd_settings)); listItems.add( new SecondaryDrawerItem().withIdentifier(DRAWER_ITEM_ABOUT).withName(R.string.about_title_activity) .withSelectable(false).withIcon(GoogleMaterial.Icon.gmd_info)); listItems.add(new SecondaryDrawerItem().withIdentifier(DRAWER_ITEM_LOG_OUT).withName(R.string.action_logout) .withSelectable(false).withIcon(GoogleMaterial.Icon.gmd_exit_to_app)); drawer = new DrawerBuilder().withActivity(this).withAccountHeader(headerResult).withHasStableIds(true) .withSelectedItem(-1).withDrawerItems(listItems) .withOnDrawerItemClickListener((view, position, drawerItem) -> { if (drawerItem != null) { long drawerItemIdentifier = drawerItem.getIdentifier(); if (drawerItemIdentifier == DRAWER_ITEM_EDIT_PROFILE) { Intent intent = new Intent(MainActivity.this, EditProfileActivity.class); startActivityWithSlideInAnimation(intent); } else if (drawerItemIdentifier == DRAWER_ITEM_FAVOURITES) { Intent intent = new Intent(MainActivity.this, FavouritesActivity.class); startActivityWithSlideInAnimation(intent); } else if (drawerItemIdentifier == DRAWER_ITEM_MUTED_USERS) { Intent intent = new Intent(MainActivity.this, AccountListActivity.class); intent.putExtra("type", AccountListActivity.Type.MUTES); startActivityWithSlideInAnimation(intent); } else if (drawerItemIdentifier == DRAWER_ITEM_BLOCKED_USERS) { Intent intent = new Intent(MainActivity.this, AccountListActivity.class); intent.putExtra("type", AccountListActivity.Type.BLOCKS); startActivityWithSlideInAnimation(intent); } else if (drawerItemIdentifier == DRAWER_ITEM_SEARCH) { Intent intent = new Intent(MainActivity.this, SearchActivity.class); startActivityWithSlideInAnimation(intent); } else if (drawerItemIdentifier == DRAWER_ITEM_PREFERENCES) { Intent intent = new Intent(MainActivity.this, PreferencesActivity.class); startActivityWithSlideInAnimation(intent); } else if (drawerItemIdentifier == DRAWER_ITEM_ABOUT) { Intent intent = new Intent(MainActivity.this, AboutActivity.class); startActivityWithSlideInAnimation(intent); } else if (drawerItemIdentifier == DRAWER_ITEM_LOG_OUT) { logout(); } else if (drawerItemIdentifier == DRAWER_ITEM_FOLLOW_REQUESTS) { Intent intent = new Intent(MainActivity.this, AccountListActivity.class); intent.putExtra("type", AccountListActivity.Type.FOLLOW_REQUESTS); startActivityWithSlideInAnimation(intent); } else if (drawerItemIdentifier == DRAWER_ITEM_SAVED_TOOT) { Intent intent = new Intent(MainActivity.this, SavedTootActivity.class); startActivityWithSlideInAnimation(intent); } else if (drawerItemIdentifier == DRAWER_ITEM_LISTS) { startActivityWithSlideInAnimation(ListsActivity.newIntent(this)); } } return false; }).build(); if (BuildConfig.DEBUG) { IDrawerItem debugItem = new SecondaryDrawerItem().withIdentifier(1337).withName("debug") .withDisabledTextColor(Color.GREEN).withSelectable(false).withEnabled(false); drawer.addItem(debugItem); } updateProfiles(); } private boolean handleProfileClick(IProfile profile, boolean current) { AccountEntity activeAccount = accountManager.getActiveAccount(); //open profile when active image was clicked if (current && activeAccount != null) { Intent intent = AccountActivity.getIntent(this, activeAccount.getAccountId()); startActivityWithSlideInAnimation(intent); return true; } //open LoginActivity to add new account if (profile.getIdentifier() == DRAWER_ITEM_ADD_ACCOUNT) { startActivityWithSlideInAnimation(LoginActivity.getIntent(this, true)); return true; } //change Account changeAccount(profile.getIdentifier()); return false; } private void changeAccount(long newSelectedId) { accountManager.setActiveAccount(newSelectedId); Intent intent = new Intent(this, MainActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); startActivityWithSlideInAnimation(intent); finishWithoutSlideOutAnimation(); overridePendingTransition(R.anim.explode, R.anim.explode); } private void logout() { AccountEntity activeAccount = accountManager.getActiveAccount(); if (activeAccount != null) { new AlertDialog.Builder(this).setTitle(R.string.action_logout) .setMessage(getString(R.string.action_logout_confirm, activeAccount.getFullName())) .setPositiveButton(android.R.string.yes, (dialog, which) -> { NotificationHelper.deleteNotificationChannelsForAccount(accountManager.getActiveAccount(), MainActivity.this); AccountEntity newAccount = accountManager.logActiveAccountOut(); if (!NotificationHelper.areNotificationsEnabled(MainActivity.this, accountManager)) disablePushNotifications(); Intent intent; if (newAccount == null) { intent = LoginActivity.getIntent(MainActivity.this, false); } else { intent = new Intent(MainActivity.this, MainActivity.class); } startActivity(intent); finishWithoutSlideOutAnimation(); }).setNegativeButton(android.R.string.no, null).show(); } } private void fetchUserInfo() { mastodonApi.accountVerifyCredentials().enqueue(new Callback<Account>() { @Override public void onResponse(@NonNull Call<Account> call, @NonNull Response<Account> response) { if (response.isSuccessful()) { onFetchUserInfoSuccess(response.body()); } else { onFetchUserInfoFailure(new Exception(response.message())); } } @Override public void onFailure(@NonNull Call<Account> call, @NonNull Throwable t) { onFetchUserInfoFailure((Exception) t); } }); } private void onFetchUserInfoSuccess(Account me) { // Add the header image and avatar from the account, into the navigation drawer header. ImageView background = headerResult.getHeaderBackgroundView(); Picasso.with(MainActivity.this).load(me.getHeader()).into(background); accountManager.updateActiveAccount(me); NotificationHelper.createNotificationChannelsForAccount(accountManager.getActiveAccount(), this); // Show follow requests in the menu, if this is a locked account. if (me.getLocked() && drawer.getDrawerItem(DRAWER_ITEM_FOLLOW_REQUESTS) == null) { PrimaryDrawerItem followRequestsItem = new PrimaryDrawerItem() .withIdentifier(DRAWER_ITEM_FOLLOW_REQUESTS).withName(R.string.action_view_follow_requests) .withSelectable(false).withIcon(GoogleMaterial.Icon.gmd_person_add); drawer.addItemAtPosition(followRequestsItem, 3); } else if (!me.getLocked()) { drawer.removeItem(DRAWER_ITEM_FOLLOW_REQUESTS); } updateProfiles(); } private void updateProfiles() { List<AccountEntity> allAccounts = accountManager.getAllAccountsOrderedByActive(); // reuse the already existing "add account" item List<IProfile> profiles = new ArrayList<>(allAccounts.size() + 1); for (IProfile profile : headerResult.getProfiles()) { if (profile.getIdentifier() == DRAWER_ITEM_ADD_ACCOUNT) { profiles.add(profile); break; } } for (AccountEntity acc : allAccounts) { CharSequence emojifiedName = CustomEmojiHelper.emojifyString(acc.getDisplayName(), acc.getEmojis(), headerResult.getView()); emojifiedName = EmojiCompat.get().process(emojifiedName); profiles.add(0, new ProfileDrawerItem().withName(emojifiedName).withIcon(acc.getProfilePictureUrl()) .withNameShown(true).withIdentifier(acc.getId()).withEmail(acc.getFullName())); } headerResult.setProfiles(profiles); } private void onFetchUserInfoFailure(Exception exception) { Log.e(TAG, "Failed to fetch user info. " + exception.getMessage()); } @Nullable @Override public FloatingActionButton getActionButton() { return composeButton; } @Override public AndroidInjector<Fragment> supportFragmentInjector() { return fragmentInjector; } }