/*
* Copyright (c) 2015 Jarrad Hope
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
package io.syng.activity;
import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.Configuration;
import android.os.Build;
import android.os.Bundle;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.widget.Toast;
import org.apache.cordova.ConfigXmlParser;
import org.apache.cordova.CordovaPreferences;
import org.apache.cordova.CordovaWebView;
import org.apache.cordova.CordovaWebViewImpl;
import java.net.URL;
import java.util.List;
import io.syng.R;
import io.syng.app.SyngApplication;
/**
* A {@link PreferenceActivity} that presents a set of application settings. On
* handset devices, settings are presented as a single list. On tablets,
* settings are split by category, with category headers shown to the left of
* the list of settings.
* <p/>
* See <a href="http://developer.android.com/design/patterns/settings.html">
* Android Design: Settings</a> for design guidelines and the <a
* href="http://developer.android.com/guide/topics/ui/settings.html">Settings
* API Guide</a> for more information on developing a Settings UI.
*/
@SuppressWarnings("deprecation")
public class SettingsActivity extends PreferenceActivity {
/**
* Determines whether to always show the simplified settings UI, where
* settings are presented in a single list. When false, settings are shown
* as a master/detail two-pane view on tablets. When true, a single pane is
* shown on tablets.
*/
private static final boolean ALWAYS_SIMPLE_PREFS = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setupSimplePreferencesScreen();
Preference button = (Preference)findPreference("clearCache");
button.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
@Override
public boolean onPreferenceClick(Preference preference) {
ConfigXmlParser parser = new ConfigXmlParser();
parser.parse(SettingsActivity.this);
CordovaPreferences preferences = parser.getPreferences();
preferences.setPreferencesBundle(SettingsActivity.this.getIntent().getExtras());
CordovaWebView webView = new CordovaWebViewImpl(CordovaWebViewImpl.createEngine(SettingsActivity.this, preferences));
webView.clearCache();
return true;
}
});
}
/**
* Shows the simplified settings UI if the device configuration if the
* device configuration dictates that a simplified, single-pane UI should be
* shown.
*/
private void setupSimplePreferencesScreen() {
if (!isSimplePreferences(this)) {
return;
}
// 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_general);
bindPreferenceSummaryToValue(findPreference(getString(R.string.pref_json_rpc_server_key)));
bindPreferenceSummaryToValue(findPreference(getString(R.string.pref_running_mode_key)));
/*
// Add 'notifications' preferences, and a corresponding header.
PreferenceCategory fakeHeader = new PreferenceCategory(this);
fakeHeader.setTitle(R.string.pref_header_notifications);
getPreferenceScreen().addPreference(fakeHeader);
addPreferencesFromResource(R.xml.pref_notification);
// Add 'data and sync' preferences, and a corresponding header.
fakeHeader = new PreferenceCategory(this);
fakeHeader.setTitle(R.string.pref_header_data_sync);
getPreferenceScreen().addPreference(fakeHeader);
addPreferencesFromResource(R.xml.pref_data_sync);
// 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("example_text"));
bindPreferenceSummaryToValue(findPreference("example_list"));
bindPreferenceSummaryToValue(findPreference("notifications_new_message_ringtone"));
bindPreferenceSummaryToValue(findPreference("sync_frequency"));
*/
}
private void bindPreferenceSummaryToValue(Preference preference) {
// Set the listener to watch for value changes.
preference.setOnPreferenceChangeListener(mBindPreferenceSummaryToValueListener);
// Trigger the listener immediately with the preference's
// current value.
mBindPreferenceSummaryToValueListener.onPreferenceChange(preference,
PreferenceManager
.getDefaultSharedPreferences(preference.getContext())
.getString(preference.getKey(), ""));
}
private Preference.OnPreferenceChangeListener mBindPreferenceSummaryToValueListener =
new Preference.OnPreferenceChangeListener() {
@Override
public boolean onPreferenceChange(Preference preference, Object value) {
String stringValue = value.toString();
String key = preference.getKey();
if (preference instanceof ListPreference) {
// For list preferences, look up the correct display value in
// the preference's 'entries' list.
ListPreference listPreference = (ListPreference) preference;
int index = listPreference.findIndexOfValue(stringValue);
// Set the summary to reflect the new value.
preference.setSummary(index >= 0 ? listPreference.getEntries()[index] : null);
Preference jsonRPC = findPreference(getString(R.string.pref_json_rpc_server_key));
jsonRPC.setEnabled(!stringValue.equals(getString(R.string.pref_running_mode_full_value)));
} else if (key.equals(getString(R.string.pref_json_rpc_server_key))) {
try {
URL url = new URL(stringValue);
preference.setSummary("Current server address is " + stringValue);
SyngApplication.sEthereumConnector.changeJsonRpc(stringValue);
} catch (Exception e) {
Toast.makeText(SettingsActivity.this,
"Invalid url address...",
Toast.LENGTH_SHORT).show();
return false;
}
} else {
preference.setSummary(stringValue);
}
return true;
}
};
/**
* {@inheritDoc}
*/
@Override
public boolean onIsMultiPane() {
return isXLargeTablet(this) && !isSimplePreferences(this);
}
/**
* Helper method to determine if the device has an extra-large screen. For
* example, 10" tablets are extra-large.
*/
private static boolean isXLargeTablet(Context context) {
return (context.getResources().getConfiguration().screenLayout
& Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_XLARGE;
}
/**
* Determines whether the simplified settings UI should be shown. This is
* true if this is forced via {@link #ALWAYS_SIMPLE_PREFS}, or the device
* doesn't have newer APIs like {@link PreferenceFragment}, or the device
* doesn't have an extra-large screen. In these cases, a single-pane
* "simplified" settings UI should be shown.
*/
@SuppressWarnings({"PointlessBooleanExpression", "ConstantConditions"})
private static boolean isSimplePreferences(Context context) {
return ALWAYS_SIMPLE_PREFS
|| Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB
|| !isXLargeTablet(context);
}
/**
* {@inheritDoc}
*/
@Override
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public void onBuildHeaders(List<Header> target) {
}
/**
* A preference value change listener that updates the preference's summary
* to reflect its new value.
*/
/**
* 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 #mBindPreferenceSummaryToValueListener
*/
// /**
// * This fragment shows general preferences only. It is used when the
// * activity is showing a two-pane settings UI.
// */
// @TargetApi(Build.VERSION_CODES.HONEYCOMB)
// public static class GeneralPreferenceFragment extends PreferenceFragment {
// @Override
// public void onCreate(Bundle savedInstanceState) {
// super.onCreate(savedInstanceState);
// addPreferencesFromResource(R.xml.pref_general);
//
// // 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("runningMode"));
// }
// }
}