Android Open Source - FRCAndroidWidget F R C Preference Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * French Revolutionary Calendar Android Widget
 * Copyright (C) 2011 - 2014 Carmen Alvarez
 * // ww  w  . ja va 2s .  c om
 * 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 ca.rmen.android.frccommon.prefs;

import android.appwidget.AppWidgetManager;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.os.Build;
import android.os.Bundle;
import android.preference.CheckBoxPreference;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceManager;
import android.preference.PreferenceScreen;
import android.util.Log;
import android.widget.Toast;

import net.margaritov.preference.colorpicker.ColorPickerPreference;

import ca.rmen.android.frccommon.Constants;
import ca.rmen.android.frcwear.FRCWearPreferenceListener;
import ca.rmen.android.frcwidget.FRCAppWidgetManager;
import ca.rmen.android.frcwidget.FRCWidgetScheduler;
import ca.rmen.android.frenchcalendar.BuildConfig;
import ca.rmen.android.frenchcalendar.R;

/**
 * Configuration screen. The settings in this screen will apply to all widgets: both narrow and wide.
 *
 * @author calvarez
 */
public class FRCPreferenceActivity extends PreferenceActivity { // NO_UCD (use default)

    private static final String TAG = Constants.TAG + FRCPreferenceActivity.class.getSimpleName();
    private final OnSharedPreferenceChangeListener mOnSharedPreferenceChangeListener = new OnSharedPreferenceChangeListener() {
        @Override
        public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
            switch (key) {
                case FRCPreferences.PREF_METHOD:
                    updatePreferenceSummary(key, R.string.setting_method_summary);
                    break;
                case FRCPreferences.PREF_DETAILED_VIEW:
                    updatePreferenceSummary(key, R.string.setting_detailed_view_summary);
                    break;
                case FRCPreferences.PREF_LANGUAGE:
                    updatePreferenceSummary(key, R.string.setting_language_summary);
                    break;
                case FRCPreferences.PREF_CUSTOM_COLOR_ENABLED:
                    updatePreferenceSummary(key, 0);
                    break;
            }
        }
    };
    private FRCWearPreferenceListener mWearPreferenceListener;

    @Override
    protected void onCreate(Bundle icicle) {
        Log.v(TAG, "onCreate: bundle = " + icicle);
        super.onCreate(icicle);
        /*
         * From the documentation: https://developer.android.com/guide/topics/appwidgets/index.html
         * The App Widget host calls the configuration Activity and the configuration
         * Activity should always return a result. The result should include the App Widget ID
         * passed by the Intent that launched the Activity (saved in the Intent extras as EXTRA_APPWIDGET_ID).
         */
        Intent intent = getIntent();
        Bundle extras = intent.getExtras();

        Log.v(TAG, "intent = " + getIntent());
        int appWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
        if (extras != null) {
            appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
            Log.v(TAG, "intent extras = " + extras);
        }
        Intent resultValue = new Intent();
        if (appWidgetId > 0) {
            resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
            Toast.makeText(this, R.string.message_save, Toast.LENGTH_LONG).show();
        }
        setResult(RESULT_OK, resultValue);
    }

    @Override
    protected void onStart() {
        super.onStart();
        Log.v(TAG, "onStart");
        //noinspection deprecation
        boolean canUseWear = !BuildConfig.FOSS && Integer.valueOf(Build.VERSION.SDK) >= Build.VERSION_CODES.JELLY_BEAN_MR2;

        // We have to load the preferences in onStart instead of on onCreate, in
        // case the user pressed home (and not back) to exit the preference screen
        // last time, and has added or removed widgets since.
        //noinspection deprecation
        PreferenceScreen preferencesScreen = getPreferenceScreen();
        if (preferencesScreen != null)
            preferencesScreen.removeAll();

        // If we have no widgets, and we can't use wear, then warn the user that they should add
        // a widget.
        if (!FRCAppWidgetManager.hasWidgets(this) && !canUseWear) {
            //noinspection deprecation
            addPreferencesFromResource(R.xml.no_widget_settings);
        }
        // Otherwise we either have some widgets, or we can use wear.  Show all our settings.
        else {
            //noinspection deprecation
            addPreferencesFromResource(R.xml.widget_settings);

            updatePreferenceSummary(FRCPreferences.PREF_METHOD, R.string.setting_method_summary);
            updatePreferenceSummary(FRCPreferences.PREF_DETAILED_VIEW, R.string.setting_detailed_view_summary);
            updatePreferenceSummary(FRCPreferences.PREF_LANGUAGE, R.string.setting_language_summary);
            updatePreferenceSummary(FRCPreferences.PREF_CUSTOM_COLOR_ENABLED, 0);

            // Don't show Android Wear stuff for old devices that don't support it
            if (!canUseWear)
                //noinspection deprecation
                getPreferenceScreen().removePreference(findPreference(FRCPreferences.PREF_ANDROID_WEAR));
            else
                mWearPreferenceListener = new FRCWearPreferenceListener(getApplicationContext());

            //noinspection deprecation
            ColorPickerPreference pref = (ColorPickerPreference) getPreferenceScreen().findPreference(FRCPreferences.PREF_CUSTOM_COLOR);
            pref.setAlphaSliderEnabled(true);
        }

        PreferenceManager.getDefaultSharedPreferences(this).registerOnSharedPreferenceChangeListener(mOnSharedPreferenceChangeListener);
        if (mWearPreferenceListener != null)
            PreferenceManager.getDefaultSharedPreferences(this).registerOnSharedPreferenceChangeListener(mWearPreferenceListener);
    }

    @Override
    protected void onStop() {
        Log.v(TAG, "onStop");
        PreferenceManager.getDefaultSharedPreferences(this).unregisterOnSharedPreferenceChangeListener(mOnSharedPreferenceChangeListener);
        if (mWearPreferenceListener != null)
            PreferenceManager.getDefaultSharedPreferences(this).unregisterOnSharedPreferenceChangeListener(mWearPreferenceListener);

        // When we leave the preference screen, reupdate all our widgets
        FRCWidgetScheduler.getInstance(this).schedule();
        super.onStop();
    }

    @Override
    protected void onDestroy() {
        Log.v(TAG, "onDestroy");
        super.onDestroy();
    }

    private void updatePreferenceSummary(String key, int summaryResId) {
        //noinspection deprecation
        Preference pref = getPreferenceManager().findPreference(key);
        if (pref instanceof ListPreference) {
            String summary = getString(summaryResId, ((ListPreference) pref).getEntry());
            pref.setSummary(summary);
        } else if (FRCPreferences.PREF_CUSTOM_COLOR_ENABLED.equals(key)) {
            if (((CheckBoxPreference) pref).isChecked()) {
                pref.setSummary(R.string.setting_custom_color_summary_enabled);
            } else {
                pref.setSummary(R.string.setting_custom_color_summary_disabled);
            }

        }
    }

}

Java Source Code List

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