Java tutorial
/* * Copyright (c) 2013 Menny Even-Danan * * 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.yek.keyboard.ui.settings; import android.app.Activity; import android.os.Bundle; import android.preference.Preference; import android.support.annotation.Nullable; import android.support.v4.preference.PreferenceFragment; import android.view.View; import com.yek.keyboard.ui.dev.DeveloperToolsFragment; import com.yek.keyboard.R; import net.evendanan.chauffeur.lib.FragmentChauffeurActivity; import net.evendanan.chauffeur.lib.experiences.TransitionExperiences; public class UiTweaksFragment extends PreferenceFragment implements Preference.OnPreferenceClickListener { public static final String DEV_TOOLS_KEY = "dev_tools"; @Override public void onCreate(Bundle paramBundle) { super.onCreate(paramBundle); addPreferencesFromResource(R.xml.prefs_ui_tweaks); } @Override public void onViewCreated(View view, @Nullable Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); Preference preference = findPreference(DEV_TOOLS_KEY); if (preference == null) { throw new NullPointerException("Preference with key '" + DEV_TOOLS_KEY + "' was not found in resource " + R.xml.prefs_ui_tweaks); } else { preference.setOnPreferenceClickListener(this); } } @Override public void onStart() { super.onStart(); MainSettingsActivity.setActivityTitle(this, getString(R.string.tweaks_group)); } @Override public boolean onPreferenceClick(Preference preference) { switch (preference.getKey()) { case DEV_TOOLS_KEY: Activity activity = getActivity(); if (activity != null && activity instanceof FragmentChauffeurActivity) { ((FragmentChauffeurActivity) activity).addFragmentToUi(new DeveloperToolsFragment(), TransitionExperiences.DEEPER_EXPERIENCE_TRANSITION); return true; } return true; default: return false; } } }