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/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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.android.launcher3;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.PreferenceFragment;
import android.preference.PreferenceScreen;
import android.preference.TwoStatePreference;
/**
* Settings activity for Launcher. Currently implements the following setting: Allow rotation
*/
public class SettingsActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Display the fragment as the main content.
getFragmentManager().beginTransaction()
.replace(android.R.id.content, new LauncherSettingsFragment())
.commit();
}
/**
* This fragment shows the launcher preferences.
*/
public static class LauncherSettingsFragment extends PreferenceFragment
implements OnPreferenceChangeListener {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.launcher_preferences);
PreferenceScreen screen = getPreferenceScreen();
for (int i = screen.getPreferenceCount() - 1; i >= 0; i--) {
Preference pref = screen.getPreference(i);
if (pref instanceof TwoStatePreference) {
setBooleanPrefUsingContentProvider((TwoStatePreference) pref);
}
}
}
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
Bundle extras = new Bundle();
extras.putBoolean(LauncherSettings.Settings.EXTRA_VALUE, (Boolean) newValue);
getActivity().getContentResolver().call(
LauncherSettings.Settings.CONTENT_URI,
LauncherSettings.Settings.METHOD_SET_BOOLEAN,
preference.getKey(), extras);
return true;
}
private void setBooleanPrefUsingContentProvider(final TwoStatePreference pref) {
pref.setPersistent(false);
pref.setEnabled(false);
new AsyncTask<Void, Void, Boolean>() {
@Override
protected Boolean doInBackground(Void... params) {
Bundle extras = new Bundle();
extras.putBoolean(LauncherSettings.Settings.EXTRA_DEFAULT_VALUE, true);
Bundle value = pref.getContext().getContentResolver().call(
LauncherSettings.Settings.CONTENT_URI,
LauncherSettings.Settings.METHOD_GET_BOOLEAN,
pref.getKey(), extras);
return value.getBoolean(LauncherSettings.Settings.EXTRA_VALUE);
}
@Override
protected void onPostExecute(Boolean aBoolean) {
pref.setChecked(aBoolean);
pref.setEnabled(true);
pref.setOnPreferenceChangeListener(LauncherSettingsFragment.this);
}
}.execute();
}
}
}
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