Android Open Source - Android-Todo-Application Todo Settings Activity

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License

The source code is released under:

MIT License

Java Source Code

/*
 * Copyright 2013 Google Inc.//from   ww  w . j  ava2 s. co m
 *
 * 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 com.samvandenberge.todo.extension;

import android.content.Intent;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.MenuItem;

import com.readystatesoftware.systembartint.SystemBarTintManager;
import com.samvandenberge.todo.R;

public class TodoSettingsActivity extends PreferenceActivity {
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getActionBar().setIcon(R.drawable.ic_launcher);
    getActionBar().setDisplayHomeAsUpEnabled(true);

    // statusBar tint
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
      // alternative for android:fitsSystemWindows="true"
      findViewById(android.R.id.list).setFitsSystemWindows(true);
      SystemBarTintManager tintManager = new SystemBarTintManager(this);
      tintManager.setStatusBarTintEnabled(true);
      int actionBarColor = Color.parseColor("#5d98db");
      tintManager.setStatusBarTintColor(actionBarColor);
    }
  }

  @Override
  protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);
    setupSimplePreferencesScreen();
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    if (item.getItemId() == android.R.id.home) {
      // TODO: if the previous activity on the stack isn't a ConfigurationActivity,
      // launch it.
      finish();
      return true;
    }

    return super.onOptionsItemSelected(item);
  }
  
  /**
   * Fix for force cache refresh when updating settings
   */
  @Override
  protected void onDestroy() {
    Log.i("TodoSettingsActivity", "Send broadcast to extension");
    sendBroadcast(new Intent(TodoExtension.ACTION_UPDATE_ALARMPAD));
    super.onDestroy();
  }

  @SuppressWarnings("deprecation")
  private void setupSimplePreferencesScreen() {
    // In the simplified UI, fragments are not used at all and we instead
    // use the older PreferenceActivity APIs.

    // Add 'general' preferences.
    addPreferencesFromResource(R.xml.pref_example);

    // Bind the summaries of EditText/List/Dialog/Ringtone preferences to
    // their values. When their values change, their summaries are updated
    // to reflect the new value, per the Android Design guidelines.
    bindPreferenceSummaryToValue(findPreference(TodoExtension.PREF_SPEAK_BEFORE));
  }

  @Override
  protected boolean isValidFragment(String fragmentName) {
    return false;
  }

  /**
   * A preference value change listener that updates the preference's summary
   * to reflect its new value.
   */
  private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = new Preference.OnPreferenceChangeListener() {
    @Override
    public boolean onPreferenceChange(Preference preference, Object value) {
      String stringValue = value.toString();

      // For all other preferences, set the summary to the value's
      // simple string representation.
      preference.setSummary(stringValue);

      return true;
    }
  };

  /**
   * Binds a preference's summary to its value. More specifically, when the
   * preference's value is changed, its summary (line of text below the
   * preference title) is updated to reflect the value. The summary is also
   * immediately updated upon calling this method. The exact display format is
   * dependent on the type of preference.
   * 
   * @see #sBindPreferenceSummaryToValueListener
   */
  private static void bindPreferenceSummaryToValue(Preference preference) {
    // Set the listener to watch for value changes.
    preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);

    // Trigger the listener immediately with the preference's
    // current value.
    sBindPreferenceSummaryToValueListener.onPreferenceChange(preference, PreferenceManager
        .getDefaultSharedPreferences(preference.getContext()).getString(preference.getKey(), ""));
  }
}

Java Source Code List

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