PopupMenuActivity.java revision e0c620730fe46d16a22133e0121f2fe9936f1685 
1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.example.android.supportv7.widget;
18
19import android.os.Bundle;
20import android.support.v7.app.AppCompatActivity;
21import android.support.v7.widget.PopupMenu;
22import android.support.v7.widget.SwitchCompat;
23import android.view.Gravity;
24import android.view.MenuInflater;
25import android.view.MenuItem;
26import android.view.View;
27import android.view.ViewGroup;
28import android.widget.Button;
29import android.widget.TextView;
30
31import com.example.android.supportv7.R;
32
33import java.text.SimpleDateFormat;
34import java.util.Date;
35
36public class PopupMenuActivity extends AppCompatActivity {
37    private TextView mLog;
38
39    private SimpleDateFormat mDateFormat;
40
41    @Override
42    protected void onCreate(Bundle savedInstanceState) {
43        super.onCreate(savedInstanceState);
44
45        setContentView(R.layout.popup_menu_activity);
46
47        mDateFormat = new SimpleDateFormat("HH:mm:ss.SSS");
48
49        final ViewGroup container = (ViewGroup) findViewById(R.id.container);
50        mLog = (TextView) container.findViewById(R.id.log);
51
52        final SwitchCompat elevationToggle = (SwitchCompat) container.findViewById(
53                R.id.elevation_toggle);
54        final Button button = (Button) container.findViewById(R.id.test_button);
55        button.setOnClickListener(new View.OnClickListener() {
56            @Override
57            public void onClick(View v) {
58                // Do we need to use a custom style that removes elevation?
59                boolean useDefaultElevation = elevationToggle.isChecked();
60
61                PopupMenu popupMenu = null;
62                if (useDefaultElevation) {
63                    popupMenu = new PopupMenu(container.getContext(), button);
64                } else {
65                    popupMenu = new PopupMenu(container.getContext(), button, Gravity.NO_GRAVITY,
66                            0, R.style.CustomPopupNoElevation);
67                }
68                final MenuInflater menuInflater = popupMenu.getMenuInflater();
69                menuInflater.inflate(R.menu.popup_menu, popupMenu.getMenu());
70
71                // Register a listener to be notified when a menu item in our popup menu has
72                // been clicked.
73                popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
74                    @Override
75                    public boolean onMenuItemClick(MenuItem item) {
76                        addToLog("Item '"+ item.getTitle() + "' clicked");
77                        return true;
78                    }
79                });
80
81                // Register a listener to be notified when our popup menu is dismissed.
82                popupMenu.setOnDismissListener(new PopupMenu.OnDismissListener() {
83                    @Override
84                    public void onDismiss(PopupMenu menu) {
85                        addToLog("Popup menu dismissed");
86                    }
87                });
88
89                // Show the popup menu
90                popupMenu.show();
91            }
92        });
93    }
94
95    private void addToLog(String toLog) {
96        String toPrepend = mDateFormat.format(new Date()) + " " + toLog + "\n";
97        mLog.setText(toPrepend + mLog.getText());
98    }
99}
100