Java tutorial
/* * * Copyright (c) Microsoft. All rights reserved. * Licensed under the MIT license. * * Project Oxford: http://ProjectOxford.ai * * Project Oxford Mimicker Alarm Github: * https://github.com/Microsoft/ProjectOxford-Apps-MimickerAlarm * * Copyright (c) Microsoft Corporation * All rights reserved. * * MIT License: * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED ""AS IS"", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * */ package com.microsoft.mimickeralarm.globalsettings; import android.content.SharedPreferences; import android.os.Bundle; import android.support.design.widget.AppBarLayout; import android.support.v4.app.Fragment; import android.support.v7.app.AppCompatActivity; import android.support.v7.preference.ListPreference; import android.support.v7.preference.PreferenceFragmentCompat; import android.support.v7.preference.PreferenceManager; import android.support.v7.preference.SwitchPreferenceCompat; import android.support.v7.widget.RecyclerView; import android.support.v7.widget.Toolbar; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.ViewGroup; import android.widget.LinearLayout; import com.microsoft.mimickeralarm.R; import com.microsoft.mimickeralarm.appcore.DividerItemDecoration; import com.microsoft.mimickeralarm.scheduling.AlarmNotificationManager; import java.util.List; /** * This activity hosts the user experience for the applications global settings, which are launched * by selecting Settings from the options menu on the alarm list. * * This class has a nested class (AlarmGlobalSettingsFragment) which handles the UX and persisting * of the different settings. * * One special feature of this class is that it listens for volume button presses and updates the * volume slider settings accordingly. */ public class AlarmGlobalSettingsActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); getSupportFragmentManager().beginTransaction() .replace(android.R.id.content, new AlarmGlobalSettingsFragment()).commit(); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if ((keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) || (keyCode == KeyEvent.KEYCODE_VOLUME_UP)) { List<Fragment> fragments = getSupportFragmentManager().getFragments(); ((AlarmGlobalSettingsFragment) fragments.get(0)).onKeyDown(keyCode); } else { return super.onKeyDown(keyCode, event); } return true; } @Override protected void onPause() { super.onPause(); overridePendingTransition(R.anim.slide_in_left, R.anim.slide_out_right); } public static class AlarmGlobalSettingsFragment extends PreferenceFragmentCompat implements SharedPreferences.OnSharedPreferenceChangeListener { private ListPreference mSnoozeDuration; private ListPreference mRingDuration; private VolumeSliderPreference mAlarmVolume; private SwitchPreferenceCompat mEnableNotifications; private SwitchPreferenceCompat mEnableReliability; @Override public void onCreatePreferences(Bundle bundle, String s) { addPreferencesFromResource(R.xml.pref_global); mSnoozeDuration = (ListPreference) findPreference(getString(R.string.pref_snooze_duration_key)); mRingDuration = (ListPreference) findPreference(getString(R.string.pref_ring_duration_key)); mAlarmVolume = (VolumeSliderPreference) findPreference(getString(R.string.pref_ring_volume_key)); mEnableNotifications = (SwitchPreferenceCompat) findPreference( getString(R.string.pref_enable_notifications_key)); mEnableReliability = (SwitchPreferenceCompat) findPreference( getString(R.string.pref_enable_reliability_key)); mEnableReliability.setEnabled(mEnableNotifications.isChecked()); setDefaultSummaryValues(); } @Override public RecyclerView onCreateRecyclerView(LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) { LinearLayout rootLayout = (LinearLayout) parent.getParent(); AppBarLayout appBarLayout = (AppBarLayout) LayoutInflater.from(getContext()) .inflate(R.layout.settings_toolbar, rootLayout, false); rootLayout.addView(appBarLayout, 0); // insert at top Toolbar bar = (Toolbar) appBarLayout.findViewById(R.id.settings_toolbar); ((AppCompatActivity) getActivity()).setSupportActionBar(bar); RecyclerView recyclerView = super.onCreateRecyclerView(inflater, parent, savedInstanceState); recyclerView.addItemDecoration( new DividerItemDecoration(getActivity(), DividerItemDecoration.VERTICAL_LIST)); return recyclerView; } @Override public void onResume() { super.onResume(); getPreferenceScreen().getSharedPreferences().registerOnSharedPreferenceChangeListener(this); } @Override public void onPause() { super.onPause(); getPreferenceScreen().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this); } @Override public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) { if (key.equals(getString(R.string.pref_snooze_duration_key))) { mSnoozeDuration.setSummary(mSnoozeDuration.getEntry()); PreferenceManager.getDefaultSharedPreferences(getActivity()).edit() .putString(getString(R.string.pref_snooze_duration_display_key), mSnoozeDuration.getEntry().toString()) .apply(); } else if (key.equals(getString(R.string.pref_ring_duration_key))) { mRingDuration.setSummary(mRingDuration.getEntry()); } else if (key.equals(getString(R.string.pref_enable_notifications_key))) { boolean notificationsEnabled = mEnableNotifications.isChecked(); // As the reliability setting is dependant on notifications, we enable or // disable appropriately mEnableReliability.setEnabled(notificationsEnabled); if (notificationsEnabled) { AlarmNotificationManager.get(getContext()).handleNextAlarmNotificationStatus(); } else { AlarmNotificationManager.get(getContext()).disableNotifications(); } } else if (key.equals(getString(R.string.pref_enable_reliability_key))) { AlarmNotificationManager.get(getContext()).toggleWakeLock(mEnableReliability.isChecked()); } } public void onKeyDown(int keyCode) { if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) { mAlarmVolume.decreaseVolume(); } else if (keyCode == KeyEvent.KEYCODE_VOLUME_UP) { mAlarmVolume.increaseVolume(); } } private void setDefaultSummaryValues() { mSnoozeDuration.setSummary(mSnoozeDuration.getEntry()); mRingDuration.setSummary(mRingDuration.getEntry()); } } }