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
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
package com.android.launcher3.settings;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Typeface;
import android.preference.ListPreference;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.*;
import com.android.launcher3.R;
import java.util.Arrays;
import java.util.List;
public class FontStylePreference extends ListPreference {
private String mValue;
public int mClickedDialogEntryIndex;
private boolean mValueSet;
public FontStylePreference(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onPrepareDialogBuilder(AlertDialog.Builder builder) {
if (getEntries() == null || getEntryValues() == null) {
throw new IllegalStateException(
"ListPreference requires an entries array and an entryValues array.");
}
mClickedDialogEntryIndex = getValueIndex();
builder.setSingleChoiceItems(new FontStyleAdapter(getContext()), mClickedDialogEntryIndex,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
mClickedDialogEntryIndex = which;
/*
* Clicking on an item simulates the positive button
* click, and dismisses the dialog.
*/
FontStylePreference.this.onClick(dialog, DialogInterface.BUTTON_POSITIVE);
dialog.dismiss();
}
});
/*
* The typical interaction for list-based dialogs is to have
* click-on-an-item dismiss the dialog instead of the user having to
* press 'Ok'.
*/
builder.setPositiveButton(null, null);
}
@Override
protected void onDialogClosed(boolean positiveResult) {
super.onDialogClosed(positiveResult);
if (positiveResult && mClickedDialogEntryIndex >= 0 && getEntryValues() != null) {
String value = getEntryValues()[mClickedDialogEntryIndex].toString();
if (callChangeListener(value)) {
setValue(value);
}
}
}
@Override
protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
setValue(restoreValue ? getPersistedString(mValue) : (String) defaultValue);
}
/**
* Sets the value of the key. This should be one of the entries in
* {@link #getEntryValues()}.
*
* @param value The value to set for the key.
*/
@Override
public void setValue(String value) {
// Always persist/notify the first time.
final boolean changed = !TextUtils.equals(mValue, value);
if (changed || !mValueSet) {
mValue = value;
mValueSet = true;
persistString(value);
if (changed) {
notifyChanged();
}
}
}
/**
* Returns the value of the key. This should be one of the entries in
* {@link #getEntryValues()}.
*
* @return The value of the key.
*/
@Override
public String getValue() {
return mValue;
}
private int getValueIndex() {
return findIndexOfValue(mValue);
}
private class FontStyleAdapter extends ArrayAdapter<CharSequence> {
private LayoutInflater mInflater;
private List<CharSequence> mEntries;
private List<CharSequence> mValues;
public FontStyleAdapter(Context context) {
super(context, -1, getEntryValues());
mInflater = LayoutInflater.from(context);
mEntries = Arrays.asList(getEntries());
mValues = Arrays.asList(getEntryValues());
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
CheckedTextView textView;
if (convertView == null) {
textView = (CheckedTextView) mInflater.inflate(R.layout.list_item_checkable, parent, false);
} else {
textView = (CheckedTextView) convertView;
}
if (textView != null) {
textView.setText(mEntries.get(position));
textView.setTag(mValues.get(position));
textView.setTypeface(Typeface.create((String) mValues.get(position), Typeface.NORMAL));
}
return textView;
}
}
}
|
