Android Open Source - saldo Widget Configuration Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Saldo - http://github.com/kria/saldo// w  w  w.  j  av  a2s .  c  om
 * 
 * Copyright (C) 2010 Kristian Adrup
 * 
 * This file is part of Saldo.
 * 
 * Saldo 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.
 *
 * Saldo 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.adrup.saldo.widget;

import com.adrup.saldo.AccountsViewBinder;
import com.adrup.saldo.DatabaseAdapter;
import com.adrup.saldo.R;
import com.adrup.saldo.bank.Account;

import android.app.ListActivity;
import android.appwidget.AppWidgetManager;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.ListView;
import android.widget.RemoteViews;
import android.widget.SimpleCursorAdapter;

import java.util.ArrayList;

/**
 * An activity that displays the configuration screen that let's the user pick an account, when adding a widget.
 * 
 * @author Kristian Adrup
 * 
 */
public class WidgetConfigurationActivity extends ListActivity {
  private static final String TAG = "WidgetConfigurationActivity";

  private static final String PREFS_NAME = "com.adrup.saldo.widget.SaldoWidgetProvider";
  private static final String ACCOUNT_ID_PREFIX_KEY = "account_id_";
  private static final String ACCOUNT_IDS_PREFIX_KEY = "account_ids_";

  int mAppWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;

  private Cursor mCursor;
  private DatabaseAdapter dbAdapter;
  private ListView listView;

  public WidgetConfigurationActivity() {
    super();
  }

  @Override
  public void onCreate(Bundle savedInstanceState) {
    Log.d(TAG, "onCreate()");
    super.onCreate(savedInstanceState);

    // Set the result to CANCELED. This will cause the widget host to cancel
    // out of the widget placement if they press the back button.
    setResult(RESULT_CANCELED);

    // Set the view layout resource to use.
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.widget_configuration);
    


    // Bind the action for the save button.
    Button okButton = (Button) findViewById(R.id.layout_widget_config_ok_btn);
    okButton.setOnClickListener(new View.OnClickListener() {
      public void onClick(View view) {
        addWidget();
      }
    });
    // Find the widget id from the intent.
    Intent intent = getIntent();
    Bundle extras = intent.getExtras();
    if (extras != null) {
      mAppWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
    }

    // If they gave us an intent without the widget id, just bail.
    if (mAppWidgetId == AppWidgetManager.INVALID_APPWIDGET_ID) {
      finish();
    }

    // mAppWidgetPrefix.setText(loadTitlePref(WidgetConfigurationActivity.this, mAppWidgetId));

    dbAdapter = new DatabaseAdapter(this);
    dbAdapter.open(); // TODO: try/catch

    mCursor = dbAdapter.fetchAllAccountsCursor();
    startManagingCursor(mCursor);

    // Now create a new list adapter bound to the cursor.
    // SimpleListAdapter is designed for binding to a Cursor.
    // TODO: fix a Checkable layout, this one is crap
    SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, // Context.
        R.layout.widget_multi_accounts_list_item, // Specify the row template to use (here, two columns bound to
                              // the two retrieved cursor rows).
        mCursor, // Pass in the cursor to bind to.
        new String[] { Account.KEY_NAME }, // Array of cursor columns
        // to bind to.
        new int[] { android.R.id.text1 }); // Parallel array of which template objects to bind to
    // those columns.

    adapter.setViewBinder(new AccountsViewBinder());
    // Bind to our new adapter.
    setListAdapter(adapter);
    listView = getListView();

    listView.setItemsCanFocus(false);
    listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);

  }

  @Override
  protected void onResume() {
    Log.d(TAG, "onResume()");
    super.onResume();
  }

  @Override
  protected void onPause() {
    Log.d(TAG, "onPause()");
    super.onPause();
  }

  @Override
  protected void onDestroy() {
    Log.d(TAG, "onPause()");
    super.onDestroy();
    dbAdapter.close();
  }

  protected void addWidget() {
    int noOfAccounts = listView.getCount();

    ArrayList<Integer> selectedAccountIds = new ArrayList<Integer>();
    for (int pos = 0; pos < noOfAccounts; pos++) {
      if (listView.isItemChecked(pos)) {
        selectedAccountIds.add((int) listView.getItemIdAtPosition(pos));
      }
    }
    int noOfSelectedAccounts = selectedAccountIds.size();
    if (noOfSelectedAccounts == 0) {
      finish();
    } else {
      int accountId = selectedAccountIds.get(0);

      String accountIdsString = TextUtils.join(",", selectedAccountIds);
      saveAccountIdPref(this, mAppWidgetId, accountId);
      saveAccountIdsPref(this, mAppWidgetId, accountIdsString);

      // Push widget update to surface
      AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(this);
      RemoteViews views = SaldoWidgetProvider.buildUpdate(this, mAppWidgetId, accountId, 0, noOfSelectedAccounts,
          true);
      appWidgetManager.updateAppWidget(mAppWidgetId, views);

      // Make sure we pass back the original appWidgetId
      Intent resultValue = new Intent();
      resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId);
      setResult(RESULT_OK, resultValue);
      finish();
    }

  }

  // Write the accountId to the SharedPreferences object for this widget
  static void saveAccountIdPref(Context context, int appWidgetId, int accountId) {
    SharedPreferences.Editor prefs = context.getSharedPreferences(PREFS_NAME, 0).edit();

    prefs.putInt(ACCOUNT_ID_PREFIX_KEY + appWidgetId, accountId);
    prefs.commit();
  }

  // Read the prefix from the SharedPreferences object for this widget.
  // If there is no preference saved, get the default from a resource
  static int loadAccountIdPref(Context context, int appWidgetId) {
    SharedPreferences prefs = context.getSharedPreferences(PREFS_NAME, 0);
    int accountId = prefs.getInt(ACCOUNT_ID_PREFIX_KEY + appWidgetId, -1);
    return accountId;
  }

  static void deleteAccountIdPref(Context context, int appWidgetId) {
    SharedPreferences.Editor prefs = context.getSharedPreferences(PREFS_NAME, 0).edit();
    prefs.remove(ACCOUNT_ID_PREFIX_KEY + appWidgetId);
    prefs.commit();
  }

  static void saveAccountIdsPref(Context context, int appWidgetId, String accountIds) {
    SharedPreferences.Editor prefs = context.getSharedPreferences(PREFS_NAME, 0).edit();

    prefs.putString(ACCOUNT_IDS_PREFIX_KEY + appWidgetId, accountIds);
    prefs.commit();
  }

  static String loadAccountIdsPref(Context context, int appWidgetId) {
    SharedPreferences prefs = context.getSharedPreferences(PREFS_NAME, 0);
    String accountIds = prefs.getString(ACCOUNT_IDS_PREFIX_KEY + appWidgetId, null);
    return accountIds;
  }

  static void deleteAccountIdsPref(Context context, int appWidgetId) {
    SharedPreferences.Editor prefs = context.getSharedPreferences(PREFS_NAME, 0).edit();
    prefs.remove(ACCOUNT_IDS_PREFIX_KEY + appWidgetId);
    prefs.commit();
  }

}

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