13518219792
/*
* Copyright (C) 2013 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.example.android.actionbarcompat.basic;
import android.os.Bundle;
import android.support.v4.view.MenuItemCompat;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
/**
* This sample shows you how to use ActionBarCompat to create a basic Activity which displays
* action items. It covers inflating items from a menu resource, as well as adding an item in code.
*
* This Activity extends from {@link ActionBarActivity}, which provides all of the function
* necessary to display a compatible Action Bar on devices running Android v2.1+.
*/
public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sample_main);
}
// BEGIN_INCLUDE(create_menu)
/**
* Use this method to instantiate your menu, and add your items to it. You
* should return true if you have added items to it and want the menu to be displayed.
*/
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate our menu from the resources by using the menu inflater.
getMenuInflater().inflate(R.menu.main, menu);
// It is also possible add items here. Use a generated id from
// resources (ids.xml) to ensure that all menu ids are distinct.
MenuItem locationItem = menu.add(0, R.id.menu_location, 0, R.string.menu_location);
locationItem.setIcon(R.drawable.ic_action_location);
// Need to use MenuItemCompat methods to call any action item related methods
MenuItemCompat.setShowAsAction(locationItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
return true;
}
// END_INCLUDE(create_menu)
// BEGIN_INCLUDE(menu_item_selected)
/**
* This method is called when one of the menu items to selected. These items
* can be on the Action Bar, the overflow menu, or the standard options menu. You
* should return true if you handle the selection.
*/
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_refresh:
// Here we might start a background refresh task
return true;
case R.id.menu_location:
// Here we might call LocationManager.requestLocationUpdates()
return true;
case R.id.menu_settings:
// Here we would open up our settings activity
return true;
}
return super.onOptionsItemSelected(item);
}
// END_INCLUDE(menu_item_selected)
}menu的main.xml
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