ApplicationInfo.java revision 723738cfaec3dd7b0fe152c872c41bebf94074c4 
1package android.content.pm;
2
3import android.os.Parcel;
4import android.os.Parcelable;
5import android.util.Printer;
6
7import java.text.Collator;
8import java.util.Comparator;
9
10/**
11 * Information you can retrieve about a particular application.  This
12 * corresponds to information collected from the AndroidManifest.xml's
13 * <application> tag.
14 */
15public class ApplicationInfo extends PackageItemInfo implements Parcelable {
16
17    /**
18     * Default task affinity of all activities in this application. See
19     * {@link ActivityInfo#taskAffinity} for more information.  This comes
20     * from the "taskAffinity" attribute.
21     */
22    public String taskAffinity;
23
24    /**
25     * Optional name of a permission required to be able to access this
26     * application's components.  From the "permission" attribute.
27     */
28    public String permission;
29
30    /**
31     * The name of the process this application should run in.  From the
32     * "process" attribute or, if not set, the same as
33     * <var>packageName</var>.
34     */
35    public String processName;
36
37    /**
38     * Class implementing the Application object.  From the "class"
39     * attribute.
40     */
41    public String className;
42
43    /**
44     * A style resource identifier (in the package's resources) of the
45     * description of an application.  From the "description" attribute
46     * or, if not set, 0.
47     */
48    public int descriptionRes;
49
50    /**
51     * A style resource identifier (in the package's resources) of the
52     * default visual theme of the application.  From the "theme" attribute
53     * or, if not set, 0.
54     */
55    public int theme;
56
57    /**
58     * Class implementing the Application's manage space
59     * functionality.  From the "manageSpaceActivity"
60     * attribute. This is an optional attribute and will be null if
61     * applications don't specify it in their manifest
62     */
63    public String manageSpaceActivityName;
64
65    /**
66     * Class implementing the Application's backup functionality.  From
67     * the "backupAgent" attribute.  This is an optional attribute and
68     * will be null if the application does not specify it in its manifest.
69     *
70     * <p>If android:allowBackup is set to false, this attribute is ignored.
71     *
72     * {@hide}
73     */
74    public String backupAgentName;
75
76    /**
77     * Value for {@link #flags}: if set, this application is installed in the
78     * device's system image.
79     */
80    public static final int FLAG_SYSTEM = 1<<0;
81
82    /**
83     * Value for {@link #flags}: set to true if this application would like to
84     * allow debugging of its
85     * code, even when installed on a non-development system.  Comes
86     * from {@link android.R.styleable#AndroidManifestApplication_debuggable
87     * android:debuggable} of the &lt;application&gt; tag.
88     */
89    public static final int FLAG_DEBUGGABLE = 1<<1;
90
91    /**
92     * Value for {@link #flags}: set to true if this application has code
93     * associated with it.  Comes
94     * from {@link android.R.styleable#AndroidManifestApplication_hasCode
95     * android:hasCode} of the &lt;application&gt; tag.
96     */
97    public static final int FLAG_HAS_CODE = 1<<2;
98
99    /**
100     * Value for {@link #flags}: set to true if this application is persistent.
101     * Comes from {@link android.R.styleable#AndroidManifestApplication_persistent
102     * android:persistent} of the &lt;application&gt; tag.
103     */
104    public static final int FLAG_PERSISTENT = 1<<3;
105
106    /**
107     * Value for {@link #flags}: set to true if this application holds the
108     * {@link android.Manifest.permission#FACTORY_TEST} permission and the
109     * device is running in factory test mode.
110     */
111    public static final int FLAG_FACTORY_TEST = 1<<4;
112
113    /**
114     * Value for {@link #flags}: default value for the corresponding ActivityInfo flag.
115     * Comes from {@link android.R.styleable#AndroidManifestApplication_allowTaskReparenting
116     * android:allowTaskReparenting} of the &lt;application&gt; tag.
117     */
118    public static final int FLAG_ALLOW_TASK_REPARENTING = 1<<5;
119
120    /**
121     * Value for {@link #flags}: default value for the corresponding ActivityInfo flag.
122     * Comes from {@link android.R.styleable#AndroidManifestApplication_allowClearUserData
123     * android:allowClearUserData} of the &lt;application&gt; tag.
124     */
125    public static final int FLAG_ALLOW_CLEAR_USER_DATA = 1<<6;
126
127    /**
128     * Value for {@link #flags}: this is set if this application has been
129     * install as an update to a built-in system application.
130     */
131    public static final int FLAG_UPDATED_SYSTEM_APP = 1<<7;
132
133    /**
134     * Value for {@link #flags}: this is set of the application has set
135     * its android:targetSdkVersion to something >= the current SDK version.
136     */
137    public static final int FLAG_TEST_ONLY = 1<<8;
138
139    /**
140     * Value for {@link #flags}: true when the application's window can be
141     * reduced in size for smaller screens.  Corresponds to
142     * {@link android.R.styleable#AndroidManifestSupportsScreens_smallScreens
143     * android:smallScreens}.
144     */
145    public static final int FLAG_SUPPORTS_SMALL_SCREENS = 1<<9;
146
147    /**
148     * Value for {@link #flags}: true when the application's window can be
149     * displayed on normal screens.  Corresponds to
150     * {@link android.R.styleable#AndroidManifestSupportsScreens_normalScreens
151     * android:normalScreens}.
152     */
153    public static final int FLAG_SUPPORTS_NORMAL_SCREENS = 1<<10;
154
155    /**
156     * Value for {@link #flags}: true when the application's window can be
157     * increased in size for larger screens.  Corresponds to
158     * {@link android.R.styleable#AndroidManifestSupportsScreens_largeScreens
159     * android:smallScreens}.
160     */
161    public static final int FLAG_SUPPORTS_LARGE_SCREENS = 1<<11;
162
163    /**
164     * Value for {@link #flags}: this is false if the application has set
165     * its android:allowBackup to false, true otherwise.
166     *
167     * {@hide}
168     */
169    public static final int FLAG_ALLOW_BACKUP = 1<<12;
170
171    /**
172     * Indicates that the application supports any densities;
173     * {@hide}
174     */
175    public static final int ANY_DENSITY = -1;
176    private static final int[] ANY_DENSITIES_ARRAY = { ANY_DENSITY };
177
178    /**
179     * Flags associated with the application.  Any combination of
180     * {@link #FLAG_SYSTEM}, {@link #FLAG_DEBUGGABLE}, {@link #FLAG_HAS_CODE},
181     * {@link #FLAG_PERSISTENT}, {@link #FLAG_FACTORY_TEST}, and
182     * {@link #FLAG_ALLOW_TASK_REPARENTING}
183     * {@link #FLAG_ALLOW_CLEAR_USER_DATA}, {@link #FLAG_UPDATED_SYSTEM_APP},
184     * {@link #FLAG_TEST_ONLY}, {@link #FLAG_SUPPORTS_SMALL_SCREENS},
185     * {@link #FLAG_SUPPORTS_NORMAL_SCREENS},
186     * {@link #FLAG_SUPPORTS_LARGE_SCREENS}.
187     */
188    public int flags = 0;
189
190    /**
191     * Full path to the location of this package.
192     */
193    public String sourceDir;
194
195    /**
196     * Full path to the location of the publicly available parts of this package (i.e. the resources
197     * and manifest).  For non-forward-locked apps this will be the same as {@link #sourceDir).
198     */
199    public String publicSourceDir;
200
201    /**
202     * Paths to all shared libraries this application is linked against.  This
203     * field is only set if the {@link PackageManager#GET_SHARED_LIBRARY_FILES
204     * PackageManager.GET_SHARED_LIBRARY_FILES} flag was used when retrieving
205     * the structure.
206     */
207    public String[] sharedLibraryFiles;
208
209    /**
210     * Full path to a directory assigned to the package for its persistent
211     * data.
212     */
213    public String dataDir;
214
215    /**
216     * The kernel user-ID that has been assigned to this application;
217     * currently this is not a unique ID (multiple applications can have
218     * the same uid).
219     */
220    public int uid;
221
222    /**
223     * The list of densities in DPI that application supprots. This
224     * field is only set if the {@link PackageManager#GET_SUPPORTS_DENSITIES} flag was
225     * used when retrieving the structure.
226     */
227    public int[] supportsDensities;
228
229    /**
230     * The minimum SDK version this application targets.  It may run on earilier
231     * versions, but it knows how to work with any new behavior added at this
232     * version.  Will be {@link android.os.Build.VERSION_CODES#CUR_DEVELOPMENT}
233     * if this is a development build and the app is targeting that.  You should
234     * compare that this number is >= the SDK version number at which your
235     * behavior was introduced.
236     */
237    public int targetSdkVersion;
238
239    /**
240     * When false, indicates that all components within this application are
241     * considered disabled, regardless of their individually set enabled status.
242     */
243    public boolean enabled = true;
244
245    public void dump(Printer pw, String prefix) {
246        super.dumpFront(pw, prefix);
247        pw.println(prefix + "className=" + className);
248        pw.println(prefix + "permission=" + permission
249                + " uid=" + uid);
250        pw.println(prefix + "taskAffinity=" + taskAffinity);
251        pw.println(prefix + "theme=0x" + Integer.toHexString(theme));
252        pw.println(prefix + "flags=0x" + Integer.toHexString(flags)
253                + " processName=" + processName);
254        pw.println(prefix + "sourceDir=" + sourceDir);
255        pw.println(prefix + "publicSourceDir=" + publicSourceDir);
256        pw.println(prefix + "sharedLibraryFiles=" + sharedLibraryFiles);
257        pw.println(prefix + "dataDir=" + dataDir);
258        pw.println(prefix + "targetSdkVersion=" + targetSdkVersion);
259        pw.println(prefix + "enabled=" + enabled);
260        pw.println(prefix + "manageSpaceActivityName="+manageSpaceActivityName);
261        pw.println(prefix + "description=0x"+Integer.toHexString(descriptionRes));
262        pw.println(prefix + "supportsDensities=" + supportsDensities);
263        super.dumpBack(pw, prefix);
264    }
265
266    public static class DisplayNameComparator
267            implements Comparator<ApplicationInfo> {
268        public DisplayNameComparator(PackageManager pm) {
269            mPM = pm;
270        }
271
272        public final int compare(ApplicationInfo aa, ApplicationInfo ab) {
273            CharSequence  sa = mPM.getApplicationLabel(aa);
274            if (sa == null) {
275                sa = aa.packageName;
276            }
277            CharSequence  sb = mPM.getApplicationLabel(ab);
278            if (sb == null) {
279                sb = ab.packageName;
280            }
281
282            return sCollator.compare(sa.toString(), sb.toString());
283        }
284
285        private final Collator   sCollator = Collator.getInstance();
286        private PackageManager   mPM;
287    }
288
289    public ApplicationInfo() {
290    }
291
292    public ApplicationInfo(ApplicationInfo orig) {
293        super(orig);
294        taskAffinity = orig.taskAffinity;
295        permission = orig.permission;
296        processName = orig.processName;
297        className = orig.className;
298        theme = orig.theme;
299        flags = orig.flags;
300        sourceDir = orig.sourceDir;
301        publicSourceDir = orig.publicSourceDir;
302        sharedLibraryFiles = orig.sharedLibraryFiles;
303        dataDir = orig.dataDir;
304        uid = orig.uid;
305        targetSdkVersion = orig.targetSdkVersion;
306        enabled = orig.enabled;
307        manageSpaceActivityName = orig.manageSpaceActivityName;
308        descriptionRes = orig.descriptionRes;
309        supportsDensities = orig.supportsDensities;
310    }
311
312
313    public String toString() {
314        return "ApplicationInfo{"
315            + Integer.toHexString(System.identityHashCode(this))
316            + " " + packageName + "}";
317    }
318
319    public int describeContents() {
320        return 0;
321    }
322
323    public void writeToParcel(Parcel dest, int parcelableFlags) {
324        super.writeToParcel(dest, parcelableFlags);
325        dest.writeString(taskAffinity);
326        dest.writeString(permission);
327        dest.writeString(processName);
328        dest.writeString(className);
329        dest.writeInt(theme);
330        dest.writeInt(flags);
331        dest.writeString(sourceDir);
332        dest.writeString(publicSourceDir);
333        dest.writeStringArray(sharedLibraryFiles);
334        dest.writeString(dataDir);
335        dest.writeInt(uid);
336        dest.writeInt(targetSdkVersion);
337        dest.writeInt(enabled ? 1 : 0);
338        dest.writeString(manageSpaceActivityName);
339        dest.writeString(backupAgentName);
340        dest.writeInt(descriptionRes);
341        dest.writeIntArray(supportsDensities);
342    }
343
344    public static final Parcelable.Creator<ApplicationInfo> CREATOR
345            = new Parcelable.Creator<ApplicationInfo>() {
346        public ApplicationInfo createFromParcel(Parcel source) {
347            return new ApplicationInfo(source);
348        }
349        public ApplicationInfo[] newArray(int size) {
350            return new ApplicationInfo[size];
351        }
352    };
353
354    private ApplicationInfo(Parcel source) {
355        super(source);
356        taskAffinity = source.readString();
357        permission = source.readString();
358        processName = source.readString();
359        className = source.readString();
360        theme = source.readInt();
361        flags = source.readInt();
362        sourceDir = source.readString();
363        publicSourceDir = source.readString();
364        sharedLibraryFiles = source.readStringArray();
365        dataDir = source.readString();
366        uid = source.readInt();
367        targetSdkVersion = source.readInt();
368        enabled = source.readInt() != 0;
369        manageSpaceActivityName = source.readString();
370        backupAgentName = source.readString();
371        descriptionRes = source.readInt();
372        supportsDensities = source.createIntArray();
373    }
374
375    /**
376     * Retrieve the textual description of the application.  This
377     * will call back on the given PackageManager to load the description from
378     * the application.
379     *
380     * @param pm A PackageManager from which the label can be loaded; usually
381     * the PackageManager from which you originally retrieved this item.
382     *
383     * @return Returns a CharSequence containing the application's description.
384     * If there is no description, null is returned.
385     */
386    public CharSequence loadDescription(PackageManager pm) {
387        if (descriptionRes != 0) {
388            CharSequence label = pm.getText(packageName, descriptionRes, null);
389            if (label != null) {
390                return label;
391            }
392        }
393        return null;
394    }
395
396    /**
397     * Disable compatibility mode
398     *
399     * @hide
400     */
401    public void disableCompatibilityMode() {
402        flags |= FLAG_SUPPORTS_LARGE_SCREENS;
403        supportsDensities = ANY_DENSITIES_ARRAY;
404    }
405}
406