Java tutorial
/* * Copyright (C) 2012 Brian Muramatsu * * 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.btmura.android.reddit.app; import android.support.annotation.NonNull; import android.support.v4.app.FragmentActivity; import android.view.KeyEvent; abstract class GlobalMenuActivity extends FragmentActivity { @Override public boolean onKeyUp(int keyCode, @NonNull KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_SEARCH: GlobalMenuFragment frag = getGlobalMenuFragment(); if (frag != null) { frag.handleSearch(); return true; } default: return super.onKeyUp(keyCode, event); } } private GlobalMenuFragment getGlobalMenuFragment() { return (GlobalMenuFragment) getSupportFragmentManager().findFragmentByTag(GlobalMenuFragment.TAG); } }