Java tutorial
/* * Twidere - Twitter client for Android * * Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com> * * 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. * * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */ package org.mariotaku.twidere.fragment.support; import static org.mariotaku.twidere.util.Utils.getDisplayName; import static org.mariotaku.twidere.util.Utils.openUserFavorites; import static org.mariotaku.twidere.util.Utils.openUserListMemberships; import static org.mariotaku.twidere.util.Utils.openUserLists; import static org.mariotaku.twidere.util.Utils.openUserProfile; import static org.mariotaku.twidere.util.Utils.openUserTimeline; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.ContentResolver; import android.content.ContentValues; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.SharedPreferences; import android.content.SharedPreferences.OnSharedPreferenceChangeListener; import android.database.Cursor; import android.graphics.Color; import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.support.v4.app.LoaderManager.LoaderCallbacks; import android.support.v4.content.CursorLoader; import android.support.v4.content.Loader; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.CompoundButton; import android.widget.CompoundButton.OnCheckedChangeListener; import android.widget.ImageView; import android.widget.ListAdapter; import android.widget.ListView; import android.widget.SimpleCursorAdapter; import android.widget.TextView; import com.commonsware.cwac.merge.MergeAdapter; import org.mariotaku.twidere.Constants; import org.mariotaku.twidere.R; import org.mariotaku.twidere.activity.FiltersActivity; import org.mariotaku.twidere.activity.SettingsActivity; import org.mariotaku.twidere.activity.support.ColorPickerDialogActivity; import org.mariotaku.twidere.activity.support.DraftsActivity; import org.mariotaku.twidere.activity.support.HomeActivity; import org.mariotaku.twidere.activity.support.SignInActivity; import org.mariotaku.twidere.activity.support.UserProfileEditorActivity; import org.mariotaku.twidere.adapter.ArrayAdapter; import org.mariotaku.twidere.app.TwidereApplication; import org.mariotaku.twidere.content.TwidereContextThemeWrapper; import org.mariotaku.twidere.model.Account; import org.mariotaku.twidere.provider.TweetStore.Accounts; import org.mariotaku.twidere.provider.TweetStore.DirectMessages; import org.mariotaku.twidere.provider.TweetStore.DirectMessages.Inbox; import org.mariotaku.twidere.provider.TweetStore.DirectMessages.Outbox; import org.mariotaku.twidere.provider.TweetStore.Mentions; import org.mariotaku.twidere.provider.TweetStore.Statuses; import org.mariotaku.twidere.util.ImageLoaderWrapper; import org.mariotaku.twidere.util.ThemeUtils; import org.mariotaku.twidere.util.content.SupportFragmentReloadCursorObserver; import org.mariotaku.twidere.view.iface.IColorLabelView; import java.util.ArrayList; public class AccountsDrawerFragment extends BaseSupportListFragment implements LoaderCallbacks<Cursor>, OnSharedPreferenceChangeListener, OnAccountActivateStateChangeListener { private final SupportFragmentReloadCursorObserver mReloadContentObserver = new SupportFragmentReloadCursorObserver( this, 0, this); private static final String FRAGMENT_TAG_ACCOUNT_DELETION = "account_deletion"; private ContentResolver mResolver; private SharedPreferences mPreferences; private MergeAdapter mAdapter; private DrawerAccountsAdapter mAccountsAdapter; private AccountOptionsAdapter mAccountOptionsAdapter; private AppMenuAdapter mAppMenuAdapter; private TextView mAccountsSectionView, mAccountOptionsSectionView, mAppMenuSectionView; public Account getSelectedAccount() { return mAccountsAdapter.getSelectedAccount(); } @Override public void onAccountActivateStateChanged(final Account account, final boolean activated) { final ContentValues values = new ContentValues(); values.put(Accounts.IS_ACTIVATED, activated); final String where = Accounts.ACCOUNT_ID + " = " + account.account_id; mResolver.update(Accounts.CONTENT_URI, values, where, null); } @Override public void onActivityCreated(final Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); mPreferences = getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE); mResolver = getContentResolver(); final Context context = getView().getContext(); mAdapter = new MergeAdapter(); mAccountsAdapter = new DrawerAccountsAdapter(context); mAccountOptionsAdapter = new AccountOptionsAdapter(context); mAppMenuAdapter = new AppMenuAdapter(context); mAccountsSectionView = newSectionView(context, R.string.accounts); mAccountOptionsSectionView = newSectionView(context, 0); mAppMenuSectionView = newSectionView(context, R.string.more); mAccountsAdapter.setOnAccountActivateStateChangeListener(this); mAdapter.addView(mAccountsSectionView, false); mAdapter.addAdapter(mAccountsAdapter); mAdapter.addView(mAccountOptionsSectionView, false); mAdapter.addAdapter(mAccountOptionsAdapter); mAdapter.addView(mAppMenuSectionView, false); mAdapter.addAdapter(mAppMenuAdapter); setListAdapter(mAdapter); mPreferences.registerOnSharedPreferenceChangeListener(this); getLoaderManager().initLoader(0, null, this); } @Override public void onActivityResult(final int requestCode, final int resultCode, final Intent data) { switch (requestCode) { case REQUEST_SET_COLOR: { if (resultCode == Activity.RESULT_OK) { if (data == null) return; final ContentValues values = new ContentValues(); values.put(Accounts.COLOR, data.getIntExtra(EXTRA_COLOR, Color.WHITE)); final String where = Accounts.ACCOUNT_ID + " = " + mAccountsAdapter.getSelectedAccountId(); mResolver.update(Accounts.CONTENT_URI, values, where, null); } break; } } super.onActivityResult(requestCode, resultCode, data); } @Override public Loader<Cursor> onCreateLoader(final int id, final Bundle args) { return new CursorLoader(getActivity(), Accounts.CONTENT_URI, Accounts.COLUMNS, null, null, null); } @Override public View onCreateView(final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) { final Context context = getActivity(); final int themeResource = ThemeUtils.getDrawerThemeResource(context); final int accentColor = ThemeUtils.getUserThemeColor(context); final Context theme = new TwidereContextThemeWrapper(context, themeResource, accentColor); return LayoutInflater.from(theme).inflate(R.layout.fragment_accounts_drawer, container, false); } @Override public void onListItemClick(final ListView l, final View v, final int position, final long id) { final ListAdapter adapter = mAdapter.getAdapter(position); final Object item = mAdapter.getItem(position); if (adapter instanceof DrawerAccountsAdapter) { if (!(item instanceof Account)) return; final Account account = (Account) item; mAccountsAdapter.setSelectedAccountId(account.account_id); updateAccountOptionsSeparatorLabel(); updateDefaultAccountState(); } else if (adapter instanceof AccountOptionsAdapter) { final Account account = mAccountsAdapter.getSelectedAccount(); if (account == null || !(item instanceof OptionItem)) return; final OptionItem option = (OptionItem) item; switch (option.id) { case MENU_VIEW_PROFILE: { openUserProfile(getActivity(), account.account_id, account.account_id, account.screen_name); closeAccountsDrawer(); break; } case MENU_SEARCH: { final FragmentActivity a = getActivity(); if (a instanceof HomeActivity) { ((HomeActivity) a).openSearchView(account); } else { getActivity().onSearchRequested(); } closeAccountsDrawer(); break; } case MENU_STATUSES: { openUserTimeline(getActivity(), account.account_id, account.account_id, account.screen_name); closeAccountsDrawer(); break; } case MENU_FAVORITES: { openUserFavorites(getActivity(), account.account_id, account.account_id, account.screen_name); closeAccountsDrawer(); break; } case MENU_LISTS: { openUserLists(getActivity(), account.account_id, account.account_id, account.screen_name); closeAccountsDrawer(); break; } case MENU_LIST_MEMBERSHIPS: { openUserListMemberships(getActivity(), account.account_id, account.account_id, account.screen_name); closeAccountsDrawer(); break; } case MENU_EDIT: { final Bundle bundle = new Bundle(); bundle.putLong(EXTRA_ACCOUNT_ID, account.account_id); final Intent intent = new Intent(INTENT_ACTION_EDIT_USER_PROFILE); intent.setClass(getActivity(), UserProfileEditorActivity.class); intent.putExtras(bundle); startActivity(intent); closeAccountsDrawer(); break; } case MENU_SET_COLOR: { final Intent intent = new Intent(getActivity(), ColorPickerDialogActivity.class); intent.putExtra(EXTRA_COLOR, account.color); intent.putExtra(EXTRA_ALPHA_SLIDER, false); startActivityForResult(intent, REQUEST_SET_COLOR); break; } case MENU_SET_AS_DEFAULT: { mPreferences.edit().putLong(KEY_DEFAULT_ACCOUNT_ID, account.account_id).commit(); break; } case MENU_DELETE: { final AccountDeletionDialogFragment f = new AccountDeletionDialogFragment(); final Bundle args = new Bundle(); args.putLong(EXTRA_ACCOUNT_ID, account.account_id); f.setArguments(args); f.show(getChildFragmentManager(), FRAGMENT_TAG_ACCOUNT_DELETION); break; } } } else if (adapter instanceof AppMenuAdapter) { if (!(item instanceof OptionItem)) return; final OptionItem option = (OptionItem) item; switch (option.id) { case MENU_ADD_ACCOUNT: { final Intent intent = new Intent(INTENT_ACTION_TWITTER_LOGIN); intent.setClass(getActivity(), SignInActivity.class); startActivity(intent); break; } case MENU_DRAFTS: { final Intent intent = new Intent(INTENT_ACTION_DRAFTS); intent.setClass(getActivity(), DraftsActivity.class); startActivity(intent); break; } case MENU_FILTERS: { final Intent intent = new Intent(getActivity(), FiltersActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT); startActivity(intent); break; } case MENU_SETTINGS: { final Intent intent = new Intent(getActivity(), SettingsActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT); startActivity(intent); break; } } closeAccountsDrawer(); } } @Override public void onLoaderReset(final Loader<Cursor> loader) { mAccountsAdapter.changeCursor(null); } @Override public void onLoadFinished(final Loader<Cursor> loader, final Cursor data) { if (data != null && data.getCount() > 0 && mAccountsAdapter.getSelectedAccountId() <= 0) { data.moveToFirst(); mAccountsAdapter.setSelectedAccountId(data.getLong(data.getColumnIndex(Accounts.ACCOUNT_ID))); } mAccountsAdapter.changeCursor(data); updateAccountOptionsSeparatorLabel(); updateDefaultAccountState(); } @Override public void onResume() { super.onResume(); mAccountsAdapter.setDefaultAccountId(mPreferences.getLong(KEY_DEFAULT_ACCOUNT_ID, -1)); updateDefaultAccountState(); } @Override public void onSharedPreferenceChanged(final SharedPreferences sharedPreferences, final String key) { if (KEY_DEFAULT_ACCOUNT_ID.equals(key)) { mAccountsAdapter.setDefaultAccountId(mPreferences.getLong(KEY_DEFAULT_ACCOUNT_ID, -1)); updateDefaultAccountState(); } } @Override public void onStart() { super.onStart(); final ContentResolver resolver = getContentResolver(); resolver.registerContentObserver(Accounts.CONTENT_URI, true, mReloadContentObserver); getLoaderManager().restartLoader(0, null, this); } @Override public void onStop() { final ContentResolver resolver = getContentResolver(); resolver.unregisterContentObserver(mReloadContentObserver); super.onStop(); } private void closeAccountsDrawer() { final Activity activity = getActivity(); if (activity instanceof HomeActivity) { ((HomeActivity) activity).closeAccountsDrawer(); } } private void updateAccountOptionsSeparatorLabel() { final Account account = mAccountsAdapter.getSelectedAccount(); if (account != null) { final String displayName = getDisplayName(getActivity(), account.account_id, account.name, account.screen_name); mAccountOptionsSectionView.setText(displayName); } else { mAccountOptionsSectionView.setText(null); } } private void updateDefaultAccountState() { final long defaultAccountId = mAccountsAdapter.getDefaultAccountId(); final long selectedAccountId = mAccountsAdapter.getSelectedAccountId(); mAccountOptionsAdapter.setDefault(defaultAccountId == selectedAccountId); } private static TextView newSectionView(final Context context, final int titleRes) { final TextView textView = new TextView(context, null, android.R.attr.listSeparatorTextViewStyle); if (titleRes != 0) { textView.setText(titleRes); } return textView; } public static final class AccountDeletionDialogFragment extends BaseSupportDialogFragment implements DialogInterface.OnClickListener { @Override public void onClick(final DialogInterface dialog, final int which) { final Bundle args = getArguments(); final long account_id = args != null ? args.getLong(EXTRA_ACCOUNT_ID, -1) : -1; if (account_id < 0) return; final ContentResolver resolver = getContentResolver(); switch (which) { case DialogInterface.BUTTON_POSITIVE: { resolver.delete(Accounts.CONTENT_URI, Accounts.ACCOUNT_ID + " = " + account_id, null); // Also delete tweets related to the account we previously // deleted. resolver.delete(Statuses.CONTENT_URI, Statuses.ACCOUNT_ID + " = " + account_id, null); resolver.delete(Mentions.CONTENT_URI, Mentions.ACCOUNT_ID + " = " + account_id, null); resolver.delete(Inbox.CONTENT_URI, DirectMessages.ACCOUNT_ID + " = " + account_id, null); resolver.delete(Outbox.CONTENT_URI, DirectMessages.ACCOUNT_ID + " = " + account_id, null); break; } } } @Override public Dialog onCreateDialog(final Bundle savedInstanceState) { final Context wrapped = ThemeUtils.getDialogThemedContext(getActivity()); final AlertDialog.Builder builder = new AlertDialog.Builder(wrapped); builder.setNegativeButton(android.R.string.cancel, null); builder.setPositiveButton(android.R.string.ok, this); builder.setTitle(R.string.account_delete_confirm_title); builder.setMessage(R.string.account_delete_confirm_message); return builder.create(); } } private static final class AccountOptionsAdapter extends OptionItemsAdapter { private static final ArrayList<OptionItem> sOptions = new ArrayList<OptionItem>(); private static final ArrayList<OptionItem> sOptionsDefault = new ArrayList<OptionItem>(); static { sOptions.add(new OptionItem(R.string.view_user_profile, R.drawable.ic_iconic_action_user, MENU_VIEW_PROFILE)); sOptions.add( new OptionItem(android.R.string.search_go, R.drawable.ic_iconic_action_search, MENU_SEARCH)); sOptions.add(new OptionItem(R.string.statuses, R.drawable.ic_iconic_action_quote, MENU_STATUSES)); sOptions.add(new OptionItem(R.string.favorites, R.drawable.ic_iconic_action_star, MENU_FAVORITES)); sOptions.add(new OptionItem(R.string.users_lists, R.drawable.ic_iconic_action_list, MENU_LISTS)); sOptions.add(new OptionItem(R.string.lists_following_me, R.drawable.ic_iconic_action_list, MENU_LIST_MEMBERSHIPS)); sOptions.add( new OptionItem(R.string.set_color, R.drawable.ic_iconic_action_color_palette, MENU_SET_COLOR)); sOptions.add( new OptionItem(R.string.set_as_default, R.drawable.ic_iconic_action_ok, MENU_SET_AS_DEFAULT)); sOptions.add(new OptionItem(R.string.delete, R.drawable.ic_iconic_action_delete, MENU_DELETE)); sOptionsDefault.add(new OptionItem(R.string.view_user_profile, R.drawable.ic_iconic_action_user, MENU_VIEW_PROFILE)); sOptionsDefault.add( new OptionItem(android.R.string.search_go, R.drawable.ic_iconic_action_search, MENU_SEARCH)); sOptionsDefault .add(new OptionItem(R.string.statuses, R.drawable.ic_iconic_action_quote, MENU_STATUSES)); sOptionsDefault .add(new OptionItem(R.string.favorites, R.drawable.ic_iconic_action_star, MENU_FAVORITES)); sOptionsDefault.add(new OptionItem(R.string.users_lists, R.drawable.ic_iconic_action_list, MENU_LISTS)); sOptionsDefault.add(new OptionItem(R.string.lists_following_me, R.drawable.ic_iconic_action_list, MENU_LIST_MEMBERSHIPS)); sOptionsDefault.add( new OptionItem(R.string.set_color, R.drawable.ic_iconic_action_color_palette, MENU_SET_COLOR)); sOptionsDefault.add(new OptionItem(R.string.delete, R.drawable.ic_iconic_action_delete, MENU_DELETE)); } public AccountOptionsAdapter(final Context context) { super(context); clear(); addAll(sOptions); } public void setDefault(final boolean isDefault) { clear(); addAll(isDefault ? sOptionsDefault : sOptions); } } private static final class AppMenuAdapter extends OptionItemsAdapter { public AppMenuAdapter(final Context context) { super(context); add(new OptionItem(R.string.add_account, R.drawable.ic_iconic_action_add, MENU_ADD_ACCOUNT)); add(new OptionItem(R.string.drafts, R.drawable.ic_iconic_action_drafts, MENU_DRAFTS)); add(new OptionItem(R.string.filters, R.drawable.ic_iconic_action_speaker_muted, MENU_FILTERS)); add(new OptionItem(R.string.settings, R.drawable.ic_iconic_action_preferences, MENU_SETTINGS)); } } private static class DrawerAccountsAdapter extends SimpleCursorAdapter implements Constants, OnCheckedChangeListener { private final ImageLoaderWrapper mImageLoader; private Account.Indices mIndices; private long mSelectedAccountId, mDefaultAccountId; private OnAccountActivateStateChangeListener mOnAccountActivateStateChangeListener; public DrawerAccountsAdapter(final Context context) { super(context, R.layout.list_item_drawer_accounts, null, new String[0], new int[0], 0); final TwidereApplication app = TwidereApplication.getInstance(context); mImageLoader = app.getImageLoaderWrapper(); } @Override public void bindView(final View view, final Context context, final Cursor cursor) { super.bindView(view, context, cursor); final CompoundButton toggle = (CompoundButton) view.findViewById(R.id.toggle); final TextView name = (TextView) view.findViewById(R.id.name); final TextView screen_name = (TextView) view.findViewById(R.id.screen_name); final TextView default_indicator = (TextView) view.findViewById(R.id.default_indicator); final ImageView profile_image = (ImageView) view.findViewById(R.id.profile_image); final Account account = new Account(cursor, mIndices); name.setText(account.name); screen_name.setText(String.format("@%s", account.screen_name)); default_indicator.setVisibility(account.account_id == mDefaultAccountId ? View.VISIBLE : View.GONE); mImageLoader.displayProfileImage(profile_image, account.profile_image_url); toggle.setChecked(account.is_activated); toggle.setTag(account); toggle.setOnCheckedChangeListener(this); view.setActivated(account.account_id == mSelectedAccountId); ((IColorLabelView) view).drawEnd(account.color); } public long getDefaultAccountId() { return mDefaultAccountId; } @Override public Account getItem(final int position) { final Cursor c = getCursor(); if (c == null || c.isClosed() || !c.moveToPosition(position)) return null; return new Account(c, mIndices); } public Account getSelectedAccount() { final Cursor c = getCursor(); if (c == null || c.isClosed() || !c.moveToFirst() || mIndices == null) return null; while (!c.isAfterLast()) { if (mSelectedAccountId == c.getLong(mIndices.account_id)) return new Account(c, mIndices); c.moveToNext(); } return null; } public long getSelectedAccountId() { return mSelectedAccountId; } @Override public boolean isEnabled(final int position) { final Cursor c = getCursor(); if (c == null || c.isClosed() || !c.moveToPosition(position)) return false; return c.getLong(mIndices.account_id) != mSelectedAccountId; } @Override public void onCheckedChanged(final CompoundButton buttonView, final boolean isChecked) { final Account account = (Account) buttonView.getTag(); if (mOnAccountActivateStateChangeListener != null) { mOnAccountActivateStateChangeListener.onAccountActivateStateChanged(account, isChecked); } } public void setDefaultAccountId(final long account_id) { if (mDefaultAccountId == account_id) return; mDefaultAccountId = account_id; notifyDataSetChanged(); } public void setOnAccountActivateStateChangeListener(final OnAccountActivateStateChangeListener listener) { mOnAccountActivateStateChangeListener = listener; } public void setSelectedAccountId(final long account_id) { if (mSelectedAccountId == account_id) return; mSelectedAccountId = account_id; notifyDataSetChanged(); } @Override public Cursor swapCursor(final Cursor c) { final Cursor old = super.swapCursor(c); mIndices = c != null ? new Account.Indices(c) : null; return old; } } private static class OptionItem { private final int name, icon, id; OptionItem(final int name, final int icon, final int id) { this.name = name; this.icon = icon; this.id = id; } @Override public boolean equals(final Object obj) { if (this == obj) return true; if (obj == null) return false; if (!(obj instanceof OptionItem)) return false; final OptionItem other = (OptionItem) obj; if (icon != other.icon) return false; if (id != other.id) return false; if (name != other.name) return false; return true; } @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + icon; result = prime * result + id; result = prime * result + name; return result; } @Override public String toString() { return "AccountOption{name=" + name + ", icon=" + icon + ", id=" + id + "}"; } } private static abstract class OptionItemsAdapter extends ArrayAdapter<OptionItem> { public OptionItemsAdapter(final Context context) { super(context, R.layout.list_item_menu); } @Override public View getView(final int position, final View convertView, final ViewGroup parent) { final View view = super.getView(position, convertView, parent); final OptionItem option = getItem(position); final TextView text1 = (TextView) view.findViewById(android.R.id.text1); final ImageView icon = (ImageView) view.findViewById(android.R.id.icon); text1.setText(option.name); icon.setImageResource(option.icon); return view; } } } interface OnAccountActivateStateChangeListener { void onAccountActivateStateChanged(Account account, boolean activated); }