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ActionBarCompat-Basic / src / com.example.android.actionbarcompat.basic /

MainActivity.java

       
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        /*
       
       
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        * Copyright (C) 2013 The Android Open Source Project
       
       
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        *
       
       
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        * Licensed under the Apache License, Version 2.0 (the "License");
       
       
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        * you may not use this file except in compliance with the License.
       
       
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        * You may obtain a copy of the License at
       
       
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        *
       
       
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        *      http://www.apache.org/licenses/LICENSE-2.0
       
       
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        *
       
       
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        * Unless required by applicable law or agreed to in writing, software
       
       
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        * distributed under the License is distributed on an "AS IS" BASIS,
       
       
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        * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
       
       
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        * See the License for the specific language governing permissions and
       
       
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        * limitations under the License.
       
       
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        */
       
       
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        package com.example.android.actionbarcompat.basic;
       
       
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        import android.os.Bundle;
       
       
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        import android.support.v4.view.MenuItemCompat;
       
       
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        import android.support.v7.app.ActionBarActivity;
       
       
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        import android.view.Menu;
       
       
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        import android.view.MenuItem;
       
       
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        /**
       
       
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        * This sample shows you how to use ActionBarCompat to create a basic Activity which displays
       
       
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        * action items. It covers inflating items from a menu resource, as well as adding an item in code.
       
       
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        *
       
       
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        * This Activity extends from {@link ActionBarActivity}, which provides all of the function
       
       
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        * necessary to display a compatible Action Bar on devices running Android v2.1+.
       
       
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        */
       
       
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        public class MainActivity extends ActionBarActivity {
       
       
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        @Override
       
       
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        protected void onCreate(Bundle savedInstanceState) {
       
       
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        super.onCreate(savedInstanceState);
       
       
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        setContentView(R.layout.sample_main);
       
       
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        }
       
       
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        /**
       
       
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        * Use this method to instantiate your menu, and add your items to it. You
       
       
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        * should return true if you have added items to it and want the menu to be displayed.
       
       
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        */
       
       
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        @Override
       
       
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        public boolean onCreateOptionsMenu(Menu menu) {
       
       
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        // Inflate our menu from the resources by using the menu inflater.
       
       
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        getMenuInflater().inflate(R.menu.main, menu);
       
       
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        // It is also possible add items here. Use a generated id from
       
       
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        // resources (ids.xml) to ensure that all menu ids are distinct.
       
       
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        MenuItem locationItem = menu.add(0, R.id.menu_location, 0, R.string.menu_location);
       
       
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        locationItem.setIcon(R.drawable.ic_action_location);
       
       
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        // Need to use MenuItemCompat methods to call any action item related methods
       
       
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        MenuItemCompat.setShowAsAction(locationItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
       
       
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        return true;
       
       
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        }
       
       
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        /**
       
       
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        * This method is called when one of the menu items to selected. These items
       
       
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        * can be on the Action Bar, the overflow menu, or the standard options menu. You
       
       
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        * should return true if you handle the selection.
       
       
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        */
       
       
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        @Override
       
       
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        public boolean onOptionsItemSelected(MenuItem item) {
       
       
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        switch (item.getItemId()) {
       
       
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        case R.id.menu_refresh:
       
       
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        // Here we might start a background refresh task
       
       
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        return true;
       
       
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        case R.id.menu_location:
       
       
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        // Here we might call LocationManager.requestLocationUpdates()
       
       
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        return true;
       
       
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        case R.id.menu_settings:
       
       
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        // Here we would open up our settings activity
       
       
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        return true;
       
       
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        }
       
       
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        return super.onOptionsItemSelected(item);
       
       
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        }
       
       
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        }