1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/*
* Copyright (C) 2013-2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.ui.adapter;
import android.content.Context;
import android.widget.ArrayAdapter;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Map;
import java.util.SortedSet;
import java.util.TreeSet;
public class KeyValueSpinnerAdapter extends ArrayAdapter<String> {
private final HashMap<Integer, String> mData;
private final int[] mKeys;
private final String[] mValues;
static <K, V extends Comparable<? super V>> SortedSet<Map.Entry<K, V>> entriesSortedByValues(
Map<K, V> map) {
SortedSet<Map.Entry<K, V>> sortedEntries = new TreeSet<>(
new Comparator<Map.Entry<K, V>>() {
@Override
public int compare(Map.Entry<K, V> e1, Map.Entry<K, V> e2) {
return e1.getValue().compareTo(e2.getValue());
}
}
);
sortedEntries.addAll(map.entrySet());
return sortedEntries;
}
public KeyValueSpinnerAdapter(Context context, HashMap<Integer, String> objects) {
// To make the drop down a simple text box
super(context, android.R.layout.simple_spinner_item);
mData = objects;
// To make the drop down view a radio button list
setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
SortedSet<Map.Entry<Integer, String>> sorted = entriesSortedByValues(objects);
// Assign hash keys with a position so that we can present and retrieve them
int i = 0;
mKeys = new int[mData.size()];
mValues = new String[mData.size()];
for (Map.Entry<Integer, String> entry : sorted) {
mKeys[i] = entry.getKey();
mValues[i] = entry.getValue();
i++;
}
}
public int getCount() {
return mData.size();
}
/**
* Returns the value
*/
@Override
public String getItem(int position) {
// return the value based on the position. This is displayed in the list.
return mValues[position];
}
/**
* Returns item key
*/
public long getItemId(int position) {
// Return an id to represent the item.
return mKeys[position];
}
/**
* Find position from key
*/
public int getPosition(long itemId) {
for (int i = 0; i < mKeys.length; i++) {
if ((int) itemId == mKeys[i]) {
return i;
}
}
return -1;
}
}
|
