Android Open Source - gnucash-android Widget Configuration Activity

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The source code is released under:
Apache License
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Java Source Code

/*
 * Copyright (c) 2012 Ngewi Fet <ngewif@gmail.com>
 */*  w  ww .  j av  a2s. com*/
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gnucash.android.ui.widget;

import java.util.Locale;

import org.gnucash.android.R;
import org.gnucash.android.model.Account;
import org.gnucash.android.model.Money;
import org.gnucash.android.db.AccountsDbAdapter;
import org.gnucash.android.receivers.TransactionAppWidgetProvider;
import org.gnucash.android.ui.UxArgument;
import org.gnucash.android.ui.account.AccountsActivity;
import org.gnucash.android.ui.transaction.TransactionsActivity;

import android.app.Activity;
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.database.Cursor;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.widget.SimpleCursorAdapter;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.RemoteViews;
import android.widget.Spinner;
import android.widget.Toast;
import org.gnucash.android.util.QualifiedAccountNameCursorAdapter;

/**
 * Activity for configuration which account to display on a widget.
 * The activity is opened each time a widget is added to the homescreen
 * @author Ngewi Fet <ngewif@gmail.com>
 */
public class WidgetConfigurationActivity extends Activity {
  private AccountsDbAdapter mAccountsDbAdapter;
    private int mAppWidgetId;
  
  private Spinner mAccountsSpinner;
  private Button mOkButton;
  private Button mCancelButton;
  
  @Override
  public void onCreate(Bundle savedInstanceState) {    
    super.onCreate(savedInstanceState);
    setContentView(R.layout.widget_configuration);
    setResult(RESULT_CANCELED);
    
    mAccountsSpinner = (Spinner) findViewById(R.id.input_accounts_spinner);
    mOkButton     = (Button) findViewById(R.id.btn_save);
    mCancelButton   = (Button) findViewById(R.id.btn_cancel);

    mAccountsDbAdapter = new AccountsDbAdapter(this);
    Cursor cursor = mAccountsDbAdapter.fetchAllRecordsOrderedByFullName();
    
    if (cursor.getCount() <= 0){
      Toast.makeText(this, R.string.error_no_accounts, Toast.LENGTH_LONG).show();
      finish();
    }

        SimpleCursorAdapter cursorAdapter = new QualifiedAccountNameCursorAdapter(this,
                android.R.layout.simple_spinner_item,
                cursor);
    cursorAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    mAccountsSpinner.setAdapter(cursorAdapter);
    
    bindListeners();
  }

  @Override
  protected void onDestroy() {    
    super.onDestroy();
    mAccountsDbAdapter.close();
  }
  
  /**
   * Sets click listeners for the buttons in the dialog
   */
  private void bindListeners() {
    mOkButton.setOnClickListener(new View.OnClickListener() {
      
      @Override
      public void onClick(View v) {
        Intent intent = getIntent();
        Bundle extras = intent.getExtras();
        if (extras != null) {
            mAppWidgetId = extras.getInt(
                    AppWidgetManager.EXTRA_APPWIDGET_ID, 
                    AppWidgetManager.INVALID_APPWIDGET_ID);
        }
        
        if (mAppWidgetId == AppWidgetManager.INVALID_APPWIDGET_ID){
          finish();
          return;
        }          
        
        long accountId = mAccountsSpinner.getSelectedItemId();
                String accountUID = mAccountsDbAdapter.getUID(accountId);
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(WidgetConfigurationActivity.this);
        Editor editor = prefs.edit();
        editor.putString(UxArgument.SELECTED_ACCOUNT_UID + mAppWidgetId, accountUID);
        editor.commit();  
        
        updateWidget(WidgetConfigurationActivity.this, mAppWidgetId, accountUID);
            
        Intent resultValue = new Intent();
        resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId);
        setResult(RESULT_OK, resultValue);
        finish();    
      }
    });
    
    mCancelButton.setOnClickListener(new View.OnClickListener() {
      
      @Override
      public void onClick(View v) {
        finish();
      }
    });
  }

  /**
   * Updates the widget with id <code>appWidgetId</code> with information from the 
   * account with record ID <code>accountId</code>
     * If the account has been deleted, then a notice is posted in the widget
     * @param appWidgetId ID of the widget to be updated
     * @param accountUID GUID of the account tied to the widget
   */
  public static void updateWidget(Context context, int appWidgetId, String accountUID) {
    Log.i("WidgetConfiguration", "Updating widget: " + appWidgetId);
    AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);

    AccountsDbAdapter accountsDbAdapter = new AccountsDbAdapter(context);
    Account account = accountsDbAdapter.getAccount(accountUID);

    
    if (account == null){
      Log.i("WidgetConfiguration", "Account not found, resetting widget " + appWidgetId);
      //if account has been deleted, let the user know
      RemoteViews views = new RemoteViews(context.getPackageName(),
          R.layout.widget_4x1);
      views.setTextViewText(R.id.account_name, context.getString(R.string.toast_account_deleted));
      views.setTextViewText(R.id.transactions_summary, "");
            //set it to simply open the app
            PendingIntent pendingIntent = PendingIntent.getActivity(context, 0,
                    new Intent(context, AccountsActivity.class), 0);
      views.setOnClickPendingIntent(R.id.widget_layout, pendingIntent);
      views.setOnClickPendingIntent(R.id.btn_new_transaction, pendingIntent);
      appWidgetManager.updateAppWidget(appWidgetId, views);
      Editor editor = PreferenceManager.getDefaultSharedPreferences(context).edit();
      editor.remove(UxArgument.SELECTED_ACCOUNT_UID + appWidgetId);
      editor.commit();
      return;
    }
    
    RemoteViews views = new RemoteViews(context.getPackageName(),
        R.layout.widget_4x1);
    views.setTextViewText(R.id.account_name, account.getName());
        Money accountBalance = accountsDbAdapter.getAccountBalance(accountUID);

        views.setTextViewText(R.id.transactions_summary,
        accountBalance.formattedString(Locale.getDefault()));
    int color = account.getBalance().isNegative() ? R.color.debit_red : R.color.credit_green;
    views.setTextColor(R.id.transactions_summary, context.getResources().getColor(color));



    Intent accountViewIntent = new Intent(context, TransactionsActivity.class);
    accountViewIntent.setAction(Intent.ACTION_VIEW);
    accountViewIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK);
    accountViewIntent.putExtra(UxArgument.SELECTED_ACCOUNT_UID, accountUID);
    PendingIntent accountPendingIntent = PendingIntent
        .getActivity(context, appWidgetId, accountViewIntent, 0);
    views.setOnClickPendingIntent(R.id.widget_layout, accountPendingIntent);
    
    Intent newTransactionIntent = new Intent(context, TransactionsActivity.class);
    newTransactionIntent.setAction(Intent.ACTION_INSERT_OR_EDIT);
    newTransactionIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK);
    newTransactionIntent.putExtra(UxArgument.SELECTED_ACCOUNT_UID, accountUID);
    PendingIntent pendingIntent = PendingIntent
        .getActivity(context, appWidgetId, newTransactionIntent, 0);              
    views.setOnClickPendingIntent(R.id.btn_new_transaction, pendingIntent);
    
    appWidgetManager.updateAppWidget(appWidgetId, views);
        accountsDbAdapter.close();
  }
  
  /**
   * Updates all widgets belonging to the application
   * @param context Application context
   */
  public static void updateAllWidgets(Context context){
    Log.i("WidgetConfiguration", "Updating all widgets");
    AppWidgetManager widgetManager = AppWidgetManager.getInstance(context);
    ComponentName componentName = new ComponentName(context, TransactionAppWidgetProvider.class);
    int[] appWidgetIds = widgetManager.getAppWidgetIds(componentName);

        SharedPreferences defaultSharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
    for (int widgetId : appWidgetIds) {
      String accountUID = defaultSharedPrefs
                .getString(UxArgument.SELECTED_ACCOUNT_UID + widgetId, null);
            
      if (accountUID == null)
        continue;
      updateWidget(context, widgetId, accountUID);
    }
  }
}
Java Source Code List
