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
143
|
package com.android.launcher3;
import android.content.Context;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.android.launcher3.compat.AlphabeticIndexCompat;
/**
* The linear list view adapter for all the apps.
*/
class AppsListAdapter extends RecyclerView.Adapter<AppsListAdapter.ViewHolder> {
/**
* ViewHolder for each row.
*/
public static class ViewHolder extends RecyclerView.ViewHolder {
public View mContent;
public ViewHolder(View v) {
super(v);
mContent = v;
}
}
private static final int SECTION_BREAK_VIEW_TYPE = 0;
private static final int ICON_VIEW_TYPE = 1;
private static final int EMPTY_VIEW_TYPE = 2;
private LayoutInflater mLayoutInflater;
private AlphabeticalAppsList mApps;
private View.OnTouchListener mTouchListener;
private View.OnClickListener mIconClickListener;
private View.OnLongClickListener mIconLongClickListener;
private String mEmptySearchText;
public AppsListAdapter(Context context, AlphabeticalAppsList apps,
View.OnTouchListener touchListener, View.OnClickListener iconClickListener,
View.OnLongClickListener iconLongClickListener) {
mApps = apps;
mLayoutInflater = LayoutInflater.from(context);
mTouchListener = touchListener;
mIconClickListener = iconClickListener;
mIconLongClickListener = iconLongClickListener;
}
public RecyclerView.LayoutManager getLayoutManager(Context context) {
return new LinearLayoutManager(context);
}
/**
* Sets the text to show when there are no apps.
*/
public void setEmptySearchText(String query) {
mEmptySearchText = query;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
switch (viewType) {
case EMPTY_VIEW_TYPE:
return new ViewHolder(mLayoutInflater.inflate(R.layout.apps_empty_view, parent,
false));
case SECTION_BREAK_VIEW_TYPE:
return new ViewHolder(new View(parent.getContext()));
case ICON_VIEW_TYPE:
// Inflate the row and all the icon children necessary
ViewGroup row = (ViewGroup) mLayoutInflater.inflate(R.layout.apps_list_row_view,
parent, false);
BubbleTextView icon = (BubbleTextView) mLayoutInflater.inflate(
R.layout.apps_list_row_icon_view, row, false);
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(0,
ViewGroup.LayoutParams.WRAP_CONTENT, 1);
lp.gravity = Gravity.CENTER_VERTICAL;
icon.setLayoutParams(lp);
icon.setOnTouchListener(mTouchListener);
icon.setOnClickListener(mIconClickListener);
icon.setOnLongClickListener(mIconLongClickListener);
icon.setFocusable(true);
row.addView(icon);
return new ViewHolder(row);
default:
throw new RuntimeException("Unexpected view type");
}
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
switch (holder.getItemViewType()) {
case ICON_VIEW_TYPE:
AppInfo info = mApps.getApps().get(position);
ViewGroup content = (ViewGroup) holder.mContent;
String sectionDescription = mApps.getSectionNameForApp(info);
// Bind the section header
boolean showSectionHeader = true;
if (position > 0) {
AppInfo prevInfo = mApps.getApps().get(position - 1);
showSectionHeader = (prevInfo == AlphabeticalAppsList.SECTION_BREAK_INFO);
}
TextView tv = (TextView) content.findViewById(R.id.section);
if (showSectionHeader) {
tv.setText(sectionDescription);
tv.setVisibility(View.VISIBLE);
} else {
tv.setVisibility(View.INVISIBLE);
}
// Bind the icon
BubbleTextView icon = (BubbleTextView) content.getChildAt(1);
icon.applyFromApplicationInfo(info);
break;
case EMPTY_VIEW_TYPE:
TextView emptyViewText = (TextView) holder.mContent.findViewById(R.id.empty_text);
emptyViewText.setText(mEmptySearchText);
break;
}
}
@Override
public int getItemCount() {
if (mApps.hasNoFilteredResults()) {
// For the empty view
return 1;
}
return mApps.getApps().size();
}
@Override
public int getItemViewType(int position) {
if (mApps.hasNoFilteredResults()) {
return EMPTY_VIEW_TYPE;
} else if (mApps.getApps().get(position) == AlphabeticalAppsList.SECTION_BREAK_INFO) {
return SECTION_BREAK_VIEW_TYPE;
}
return ICON_VIEW_TYPE;
}
}
|
