com.dwdesign.tweetings.activity.SelectAccountActivity.java Source code

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Here is the source code for com.dwdesign.tweetings.activity.SelectAccountActivity.java

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/*
 *            Tweetings - Twitter client for Android
 * 
 * Copyright (C) 2012-2013 RBD Solutions Limited <apps@tweetings.net>
 * Copyright (C) 2012 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 com.dwdesign.tweetings.activity;

import java.util.ArrayList;
import java.util.List;

import com.dwdesign.tweetings.Constants;
import com.dwdesign.tweetings.R;
import com.dwdesign.tweetings.provider.TweetStore.Accounts;

import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.widget.SimpleCursorAdapter;
import android.util.SparseBooleanArray;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.Toast;

public class SelectAccountActivity extends BaseDialogActivity implements OnItemClickListener, OnClickListener {

    private ListView mListView;
    private SimpleCursorAdapter mAdapter;
    private Cursor mCursor;
    private final List<Long> mActivatedUsersId = new ArrayList<Long>();

    public Cursor getAccountsCursor(final boolean activated_only) {
        final Uri uri = Accounts.CONTENT_URI;
        final String[] cols = new String[] { Accounts._ID, Accounts.USER_ID, Accounts.USERNAME,
                Accounts.IS_ACTIVATED };
        final String where = activated_only ? Accounts.IS_ACTIVATED + " = " + 1 : null;
        return getContentResolver().query(uri, cols, where, null, null);
    }

    @Override
    public void onBackPressed() {
        if (mActivatedUsersId.size() <= 0) {
            Toast.makeText(this, R.string.no_account_selected, Toast.LENGTH_SHORT).show();
            return;
        }
        final Bundle bundle = new Bundle();
        final long[] ids = new long[mActivatedUsersId.size()];
        int i = 0;
        for (final Long id_long : mActivatedUsersId) {
            ids[i] = id_long;
            i++;
        }
        bundle.putLongArray(INTENT_KEY_IDS, ids);
        setResult(RESULT_OK, new Intent().putExtras(bundle));
        finish();
    }

    @Override
    public void onClick(final View view) {
        switch (view.getId()) {
        case R.id.save: {
            onBackPressed();
            break;
        }
        }
    }

    @Override
    public void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        final Bundle bundle = savedInstanceState != null ? savedInstanceState : getIntent().getExtras();
        setContentView(R.layout.select_account);
        mListView = (ListView) findViewById(android.R.id.list);
        final String[] from = new String[] { Accounts.USERNAME };
        final int[] to = new int[] { android.R.id.text1 };
        mCursor = getAccountsCursor(bundle != null ? bundle.getBoolean(INTENT_KEY_ACTIVATED_ONLY, false) : false);
        if (mCursor == null) {
            finish();
            return;
        }
        mAdapter = new SimpleCursorAdapter(this, android.R.layout.simple_list_item_multiple_choice, mCursor, from,
                to, 0);
        mListView.setAdapter(mAdapter);
        mListView.setOnItemClickListener(this);
        mListView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);

        final long[] activated_ids = bundle != null ? bundle.getLongArray(Constants.INTENT_KEY_IDS) : null;
        mActivatedUsersId.clear();
        if (activated_ids == null) {
            mCursor.moveToFirst();
            while (!mCursor.isAfterLast()) {
                final boolean is_activated = mCursor
                        .getInt(mCursor.getColumnIndexOrThrow(Accounts.IS_ACTIVATED)) == 1;
                final long user_id = mCursor.getLong(mCursor.getColumnIndexOrThrow(Accounts.USER_ID));
                if (is_activated) {
                    mActivatedUsersId.add(user_id);
                }
                mListView.setItemChecked(mCursor.getPosition(), is_activated);
                mCursor.moveToNext();
            }
        } else {
            for (final long id : activated_ids) {
                mCursor.moveToFirst();
                while (!mCursor.isAfterLast()) {
                    final long user_id = mCursor.getLong(mCursor.getColumnIndexOrThrow(Accounts.USER_ID));
                    if (id == user_id) {
                        mListView.setItemChecked(mCursor.getPosition(), true);
                        mActivatedUsersId.add(user_id);
                    }
                    mCursor.moveToNext();
                }
            }
        }
    }

    @Override
    public void onDestroy() {
        if (mCursor != null && !mCursor.isClosed()) {
            mCursor.close();
        }
        super.onDestroy();
    }

    @Override
    public void onItemClick(final AdapterView<?> adapter, final View view, final int position, final long id) {
        if (mCursor == null || mCursor.isClosed())
            return;
        final int choise_mode = mListView.getChoiceMode();
        if (choise_mode == ListView.CHOICE_MODE_NONE)
            return;

        final SparseBooleanArray checkedpositions = mListView.getCheckedItemPositions();
        final boolean checked = checkedpositions.get(position, false);
        mCursor.moveToPosition(position);
        final long user_id = mCursor.getLong(mCursor.getColumnIndexOrThrow(Accounts.USER_ID));
        if (!checked) {
            if (mActivatedUsersId.contains(user_id)) {
                mActivatedUsersId.remove(user_id);
            }
        } else if (!mActivatedUsersId.contains(user_id)) {
            mActivatedUsersId.add(user_id);
        }
    }

    @Override
    public void onSaveInstanceState(final Bundle outState) {
        final int ids_size = mActivatedUsersId.size();
        final long[] ids = new long[ids_size];
        for (int i = 0; i < ids_size; i++) {
            ids[i] = mActivatedUsersId.get(i);
        }
        outState.putLongArray(Constants.INTENT_KEY_IDS, ids);
        super.onSaveInstanceState(outState);
    }
}