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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
package android.app;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.pm.ServiceInfo;
import android.content.res.TypedArray;
import android.content.res.XmlResourceParser;
import android.graphics.drawable.Drawable;
import android.os.Parcel;
import android.os.Parcelable;
import android.service.wallpaper.WallpaperService;
import android.util.AttributeSet;
import android.util.Printer;
import android.util.Xml;
import java.io.IOException;
/**
* This class is used to specify meta information of a wallpaper service.
* @hide Live Wallpaper
*/
public final class WallpaperInfo implements Parcelable {
static final String TAG = "WallpaperInfo";
/**
* The Service that implements this wallpaper component.
*/
final ResolveInfo mService;
/**
* The wallpaper setting activity's name, to
* launch the setting activity of this wallpaper.
*/
final String mSettingsActivityName;
/**
* Resource identifier for this wallpaper's thumbnail image.
*/
final int mThumbnailResource;
/**
* Constructor.
*
* @param context The Context in which we are parsing the wallpaper.
* @param service The ResolveInfo returned from the package manager about
* this wallpaper's component.
*/
public WallpaperInfo(Context context, ResolveInfo service)
throws XmlPullParserException, IOException {
mService = service;
ServiceInfo si = service.serviceInfo;
PackageManager pm = context.getPackageManager();
String settingsActivityComponent = null;
int thumbnailRes = -1;
XmlResourceParser parser = null;
try {
parser = si.loadXmlMetaData(pm, WallpaperService.SERVICE_META_DATA);
if (parser == null) {
throw new XmlPullParserException("No "
+ WallpaperService.SERVICE_META_DATA + " meta-data");
}
AttributeSet attrs = Xml.asAttributeSet(parser);
int type;
while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
&& type != XmlPullParser.START_TAG) {
}
String nodeName = parser.getName();
if (!"wallpaper".equals(nodeName)) {
throw new XmlPullParserException(
"Meta-data does not start with wallpaper tag");
}
TypedArray sa = context.getResources().obtainAttributes(attrs,
com.android.internal.R.styleable.Wallpaper);
settingsActivityComponent = sa.getString(
com.android.internal.R.styleable.Wallpaper_settingsActivity);
thumbnailRes = sa.getResourceId(
com.android.internal.R.styleable.Wallpaper_thumbnail,
-1);
sa.recycle();
} finally {
if (parser != null) parser.close();
}
mSettingsActivityName = settingsActivityComponent;
mThumbnailResource = thumbnailRes;
}
WallpaperInfo(Parcel source) {
mSettingsActivityName = source.readString();
mThumbnailResource = source.readInt();
mService = ResolveInfo.CREATOR.createFromParcel(source);
}
/**
* Return the .apk package that implements this wallpaper.
*/
public String getPackageName() {
return mService.serviceInfo.packageName;
}
/**
* Return the class name of the service component that implements
* this wallpaper.
*/
public String getServiceName() {
return mService.serviceInfo.name;
}
/**
* Return the raw information about the Service implementing this
* wallpaper. Do not modify the returned object.
*/
public ServiceInfo getServiceInfo() {
return mService.serviceInfo;
}
/**
* Return the component of the service that implements this wallpaper.
*/
public ComponentName getComponent() {
return new ComponentName(mService.serviceInfo.packageName,
mService.serviceInfo.name);
}
/**
* Load the user-displayed label for this wallpaper.
*
* @param pm Supply a PackageManager used to load the wallpaper's
* resources.
*/
public CharSequence loadLabel(PackageManager pm) {
return mService.loadLabel(pm);
}
/**
* Load the user-displayed icon for this wallpaper.
*
* @param pm Supply a PackageManager used to load the wallpaper's
* resources.
*/
public Drawable loadIcon(PackageManager pm) {
return mService.loadIcon(pm);
}
/**
* Load the thumbnail image for this wallpaper.
*
* @param pm Supply a PackageManager used to load the wallpaper's
* resources.
*/
public Drawable loadThumbnail(PackageManager pm) {
if (mThumbnailResource < 0) return null;
return pm.getDrawable(mService.serviceInfo.packageName,
mThumbnailResource,
null);
}
/**
* Return the class name of an activity that provides a settings UI for
* the wallpaper. You can launch this activity be starting it with
* an {@link android.content.Intent} whose action is MAIN and with an
* explicit {@link android.content.ComponentName}
* composed of {@link #getPackageName} and the class name returned here.
*
* <p>A null will be returned if there is no settings activity associated
* with the wallpaper.
*/
public String getSettingsActivity() {
return mSettingsActivityName;
}
public void dump(Printer pw, String prefix) {
pw.println(prefix + "Service:");
mService.dump(pw, prefix + " ");
pw.println(prefix + "mSettingsActivityName=" + mSettingsActivityName);
}
@Override
public String toString() {
return "WallpaperInfo{" + mService.serviceInfo.name
+ ", settings: "
+ mSettingsActivityName + "}";
}
/**
* Used to package this object into a {@link Parcel}.
*
* @param dest The {@link Parcel} to be written.
* @param flags The flags used for parceling.
*/
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(mSettingsActivityName);
dest.writeInt(mThumbnailResource);
mService.writeToParcel(dest, flags);
}
/**
* Used to make this class parcelable.
*/
public static final Parcelable.Creator<WallpaperInfo> CREATOR = new Parcelable.Creator<WallpaperInfo>() {
public WallpaperInfo createFromParcel(Parcel source) {
return new WallpaperInfo(source);
}
public WallpaperInfo[] newArray(int size) {
return new WallpaperInfo[size];
}
};
public int describeContents() {
return 0;
}
}
|
