ListPopupWindowActivity.java revision def582a5836579a3fadabfdbe4413cb1652bf098 
1/*
2 * Copyright (C) 2015 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.view.LayoutInflater;
21import android.view.View;
22import android.view.ViewGroup;
23import android.widget.AdapterView;
24import android.widget.BaseAdapter;
25import android.widget.Button;
26import android.widget.CheckBox;
27import android.widget.PopupWindow;
28import android.widget.TextView;
29
30import androidx.appcompat.app.AppCompatActivity;
31import androidx.appcompat.widget.ListPopupWindow;
32
33import com.example.android.supportv7.R;
34
35import java.text.SimpleDateFormat;
36import java.util.Date;
37
38public class ListPopupWindowActivity extends AppCompatActivity {
39    private ViewGroup mContainer;
40
41    private CheckBox mIsModal;
42
43    private TextView mLog;
44
45    private Button mButton;
46
47    private ListPopupWindow mListPopupWindow;
48
49    private BaseAdapter mListPopupAdapter;
50
51    private SimpleDateFormat mDateFormat;
52
53    @Override
54    protected void onCreate(Bundle savedInstanceState) {
55        super.onCreate(savedInstanceState);
56
57        setContentView(R.layout.list_popup_window_activity);
58
59        mDateFormat = new SimpleDateFormat("HH:mm:ss.SSS");
60
61        mContainer = findViewById(R.id.container);
62        mIsModal = (CheckBox) mContainer.findViewById(R.id.is_modal);
63        mLog = (TextView) mContainer.findViewById(R.id.log);
64        mButton = (Button) mContainer.findViewById(R.id.test_button);
65
66        mButton.setOnClickListener(new View.OnClickListener() {
67            @Override
68            public void onClick(View v) {
69                mListPopupWindow = new ListPopupWindow(mContainer.getContext());
70
71                final String[] POPUP_CONTENT =
72                        new String[] { "Alice", "Bob", "Charlie", "Deirdre", "El" };
73                mListPopupAdapter = new BaseAdapter() {
74                    class ViewHolder {
75                        private TextView title;
76                        private TextView shortcut;
77                    }
78
79                    @Override
80                    public int getCount() {
81                        return POPUP_CONTENT.length;
82                    }
83
84                    @Override
85                    public Object getItem(int position) {
86                        return POPUP_CONTENT[position];
87                    }
88
89                    @Override
90                    public long getItemId(int position) {
91                        return position;
92                    }
93
94                    @Override
95                    public View getView(int position, View convertView, ViewGroup parent) {
96                        if (convertView == null) {
97                            convertView = LayoutInflater.from(parent.getContext()).inflate(
98                                    R.layout.abc_popup_menu_item_layout, parent, false);
99                            ViewHolder viewHolder = new ViewHolder();
100                            viewHolder.title = (TextView) convertView.findViewById(R.id.title);
101                            viewHolder.shortcut =
102                                    (TextView) convertView.findViewById(R.id.shortcut);
103                            convertView.setTag(viewHolder);
104                        }
105
106                        ViewHolder viewHolder = (ViewHolder) convertView.getTag();
107                        viewHolder.title.setText(POPUP_CONTENT[position]);
108                        viewHolder.shortcut.setVisibility(View.GONE);
109                        return convertView;
110                    }
111                };
112
113                mListPopupWindow.setAdapter(mListPopupAdapter);
114                mListPopupWindow.setAnchorView(mButton);
115
116                // Register a listener to be notified when an item in our popup window has
117                // been clicked.
118                mListPopupWindow.setOnItemClickListener(new AdapterView.OnItemClickListener() {
119                    @Override
120                    public void onItemClick(AdapterView<?> parent, View view, int position,
121                            long id) {
122                        addToLog("Item #"+ position + " clicked");
123                        addToLog("Dismissing popup window");
124                        mListPopupWindow.dismiss();
125                    }
126                });
127
128                // Register a listener to be notified when our popup window is dismissed.
129                mListPopupWindow.setOnDismissListener(new PopupWindow.OnDismissListener() {
130                    @Override
131                    public void onDismiss() {
132                        addToLog("Popup window dismissed");
133                    }
134                });
135
136                // Set popup window modality based on the current checkbox state.
137                mListPopupWindow.setModal(mIsModal.isChecked());
138
139                // and show it
140                mListPopupWindow.show();
141            }
142        });
143
144        // Set up a click listener on the log text view. When the popup window is in modal
145        // mode and is dismissed by tapping outside of its bounds *and* over the log text
146        // view bounds, we should *not* get this click listener invoked.
147        mLog.setOnClickListener(new View.OnClickListener() {
148            @Override
149            public void onClick(View v) {
150                addToLog("Log view clicked");
151            }
152        });
153    }
154
155    private void addToLog(String toLog) {
156        String toPrepend = mDateFormat.format(new Date()) + " " + toLog + "\n";
157        mLog.setText(toPrepend + mLog.getText());
158    }
159}
160