ListPopupWindowActivity.java revision b31c3281d870e9abb673db239234d580dcc4feff 
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 androidx.appcompat.app.AppCompatActivity;
21import androidx.appcompat.widget.ListPopupWindow;
22import android.view.LayoutInflater;
23import android.view.View;
24import android.view.ViewGroup;
25import android.widget.AdapterView;
26import android.widget.BaseAdapter;
27import android.widget.Button;
28import android.widget.CheckBox;
29import android.widget.PopupWindow;
30import android.widget.TextView;
31import com.example.android.supportv7.R;
32
33import java.text.SimpleDateFormat;
34import java.util.Date;
35
36public class ListPopupWindowActivity extends AppCompatActivity {
37    private ViewGroup mContainer;
38
39    private CheckBox mIsModal;
40
41    private TextView mLog;
42
43    private Button mButton;
44
45    private ListPopupWindow mListPopupWindow;
46
47    private BaseAdapter mListPopupAdapter;
48
49    private SimpleDateFormat mDateFormat;
50
51    @Override
52    protected void onCreate(Bundle savedInstanceState) {
53        super.onCreate(savedInstanceState);
54
55        setContentView(R.layout.list_popup_window_activity);
56
57        mDateFormat = new SimpleDateFormat("HH:mm:ss.SSS");
58
59        mContainer = findViewById(R.id.container);
60        mIsModal = (CheckBox) mContainer.findViewById(R.id.is_modal);
61        mLog = (TextView) mContainer.findViewById(R.id.log);
62        mButton = (Button) mContainer.findViewById(R.id.test_button);
63
64        mButton.setOnClickListener(new View.OnClickListener() {
65            @Override
66            public void onClick(View v) {
67                mListPopupWindow = new ListPopupWindow(mContainer.getContext());
68
69                final String[] POPUP_CONTENT =
70                        new String[] { "Alice", "Bob", "Charlie", "Deirdre", "El" };
71                mListPopupAdapter = new BaseAdapter() {
72                    class ViewHolder {
73                        private TextView title;
74                        private TextView shortcut;
75                    }
76
77                    @Override
78                    public int getCount() {
79                        return POPUP_CONTENT.length;
80                    }
81
82                    @Override
83                    public Object getItem(int position) {
84                        return POPUP_CONTENT[position];
85                    }
86
87                    @Override
88                    public long getItemId(int position) {
89                        return position;
90                    }
91
92                    @Override
93                    public View getView(int position, View convertView, ViewGroup parent) {
94                        if (convertView == null) {
95                            convertView = LayoutInflater.from(parent.getContext()).inflate(
96                                    R.layout.abc_popup_menu_item_layout, parent, false);
97                            ViewHolder viewHolder = new ViewHolder();
98                            viewHolder.title = (TextView) convertView.findViewById(R.id.title);
99                            viewHolder.shortcut =
100                                    (TextView) convertView.findViewById(R.id.shortcut);
101                            convertView.setTag(viewHolder);
102                        }
103
104                        ViewHolder viewHolder = (ViewHolder) convertView.getTag();
105                        viewHolder.title.setText(POPUP_CONTENT[position]);
106                        viewHolder.shortcut.setVisibility(View.GONE);
107                        return convertView;
108                    }
109                };
110
111                mListPopupWindow.setAdapter(mListPopupAdapter);
112                mListPopupWindow.setAnchorView(mButton);
113
114                // Register a listener to be notified when an item in our popup window has
115                // been clicked.
116                mListPopupWindow.setOnItemClickListener(new AdapterView.OnItemClickListener() {
117                    @Override
118                    public void onItemClick(AdapterView<?> parent, View view, int position,
119                            long id) {
120                        addToLog("Item #"+ position + " clicked");
121                        addToLog("Dismissing popup window");
122                        mListPopupWindow.dismiss();
123                    }
124                });
125
126                // Register a listener to be notified when our popup window is dismissed.
127                mListPopupWindow.setOnDismissListener(new PopupWindow.OnDismissListener() {
128                    @Override
129                    public void onDismiss() {
130                        addToLog("Popup window dismissed");
131                    }
132                });
133
134                // Set popup window modality based on the current checkbox state.
135                mListPopupWindow.setModal(mIsModal.isChecked());
136
137                // and show it
138                mListPopupWindow.show();
139            }
140        });
141
142        // Set up a click listener on the log text view. When the popup window is in modal
143        // mode and is dismissed by tapping outside of its bounds *and* over the log text
144        // view bounds, we should *not* get this click listener invoked.
145        mLog.setOnClickListener(new View.OnClickListener() {
146            @Override
147            public void onClick(View v) {
148                addToLog("Log view clicked");
149            }
150        });
151    }
152
153    private void addToLog(String toLog) {
154        String toPrepend = mDateFormat.format(new Date()) + " " + toLog + "\n";
155        mLog.setText(toPrepend + mLog.getText());
156    }
157}
158