下面列出了android.os.UserHandle#USER_CURRENT 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
public String toString() {
final ComponentInfo ci = getComponentInfo();
StringBuilder sb = new StringBuilder(128);
sb.append("ResolveInfo{");
sb.append(Integer.toHexString(System.identityHashCode(this)));
sb.append(' ');
ComponentName.appendShortString(sb, ci.packageName, ci.name);
if (priority != 0) {
sb.append(" p=");
sb.append(priority);
}
if (preferredOrder != 0) {
sb.append(" o=");
sb.append(preferredOrder);
}
sb.append(" m=0x");
sb.append(Integer.toHexString(match));
if (targetUserId != UserHandle.USER_CURRENT) {
sb.append(" targetUserId=");
sb.append(targetUserId);
}
sb.append('}');
return sb.toString();
}
private Intent parseIntentAndUser() throws URISyntaxException {
mTargetUser = UserHandle.USER_CURRENT;
mBrief = false;
mComponents = false;
Intent intent = Intent.parseCommandArgs(this, new Intent.CommandOptionHandler() {
@Override
public boolean handleOption(String opt, ShellCommand cmd) {
if ("--user".equals(opt)) {
mTargetUser = UserHandle.parseUserArg(cmd.getNextArgRequired());
return true;
} else if ("--brief".equals(opt)) {
mBrief = true;
return true;
} else if ("--components".equals(opt)) {
mComponents = true;
return true;
}
return false;
}
});
mTargetUser = ActivityManager.handleIncomingUser(Binder.getCallingPid(),
Binder.getCallingUid(), mTargetUser, false, false, null, null);
return intent;
}
private int runSetHarmfulAppWarning() throws RemoteException {
int userId = UserHandle.USER_CURRENT;
String opt;
while ((opt = getNextOption()) != null) {
if (opt.equals("--user")) {
userId = UserHandle.parseUserArg(getNextArgRequired());
} else {
getErrPrintWriter().println("Error: Unknown option: " + opt);
return -1;
}
}
userId = translateUserId(userId, false /*allowAll*/, "runSetHarmfulAppWarning");
final String packageName = getNextArgRequired();
final String warning = getNextArg();
mInterface.setHarmfulAppWarning(packageName, warning, userId);
return 0;
}
int runGetInactive(PrintWriter pw) throws RemoteException {
int userId = UserHandle.USER_CURRENT;
String opt;
while ((opt=getNextOption()) != null) {
if (opt.equals("--user")) {
userId = UserHandle.parseUserArg(getNextArgRequired());
} else {
getErrPrintWriter().println("Error: Unknown option: " + opt);
return -1;
}
}
String packageName = getNextArgRequired();
IUsageStatsManager usm = IUsageStatsManager.Stub.asInterface(ServiceManager.getService(
Context.USAGE_STATS_SERVICE));
boolean isIdle = usm.isAppInactive(packageName, userId);
pw.println("Idle=" + isIdle);
return 0;
}
/**
* Get an AccessibilityManager instance (create one if necessary).
*
* @param context Context in which this manager operates.
*
* @hide
*/
public static AccessibilityManager getInstance(Context context) {
synchronized (sInstanceSync) {
if (sInstance == null) {
final int userId;
if (Binder.getCallingUid() == Process.SYSTEM_UID
|| context.checkCallingOrSelfPermission(
Manifest.permission.INTERACT_ACROSS_USERS)
== PackageManager.PERMISSION_GRANTED
|| context.checkCallingOrSelfPermission(
Manifest.permission.INTERACT_ACROSS_USERS_FULL)
== PackageManager.PERMISSION_GRANTED) {
userId = UserHandle.USER_CURRENT;
} else {
userId = context.getUserId();
}
sInstance = new AccessibilityManager(context, null, userId);
}
}
return sInstance;
}
/**
* Request fingerprint enrollment. This call warms up the fingerprint hardware
* and starts scanning for fingerprints. Progress will be indicated by callbacks to the
* {@link EnrollmentCallback} object. It terminates when
* {@link EnrollmentCallback#onEnrollmentError(int, CharSequence)} or
* {@link EnrollmentCallback#onEnrollmentProgress(int) is called with remaining == 0, at
* which point the object is no longer valid. The operation can be canceled by using the
* provided cancel object.
* @param token a unique token provided by a recent creation or verification of device
* credentials (e.g. pin, pattern or password).
* @param cancel an object that can be used to cancel enrollment
* @param flags optional flags
* @param userId the user to whom this fingerprint will belong to
* @param callback an object to receive enrollment events
* @hide
*/
@RequiresPermission(MANAGE_FINGERPRINT)
public void enroll(byte [] token, CancellationSignal cancel, int flags,
int userId, EnrollmentCallback callback) {
if (userId == UserHandle.USER_CURRENT) {
userId = getCurrentUserId();
}
if (callback == null) {
throw new IllegalArgumentException("Must supply an enrollment callback");
}
if (cancel != null) {
if (cancel.isCanceled()) {
Slog.w(TAG, "enrollment already canceled");
return;
} else {
cancel.setOnCancelListener(new OnEnrollCancelListener());
}
}
if (mService != null) try {
mEnrollmentCallback = callback;
mService.enroll(mToken, token, userId, mServiceReceiver, flags,
mContext.getOpPackageName());
} catch (RemoteException e) {
Slog.w(TAG, "Remote exception in enroll: ", e);
if (callback != null) {
// Though this may not be a hardware issue, it will cause apps to give up or try
// again later.
callback.onEnrollmentError(FINGERPRINT_ERROR_HW_UNAVAILABLE,
getErrorString(FINGERPRINT_ERROR_HW_UNAVAILABLE, 0 /* vendorCode */));
}
}
}
/** @hide */
public static Uri maybeAddUserId(Uri uri, int userId) {
if (uri == null) return null;
if (userId != UserHandle.USER_CURRENT
&& ContentResolver.SCHEME_CONTENT.equals(uri.getScheme())) {
if (!uriHasUserId(uri)) {
//We don't add the user Id if there's already one
Uri.Builder builder = uri.buildUpon();
builder.encodedAuthority("" + userId + "@" + uri.getEncodedAuthority());
return builder.build();
}
}
return uri;
}
/** @hide */
public static Uri maybeAddUserId(Uri uri, int userId) {
if (uri == null) return null;
if (userId != UserHandle.USER_CURRENT
&& ContentResolver.SCHEME_CONTENT.equals(uri.getScheme())) {
if (!uriHasUserId(uri)) {
//We don't add the user Id if there's already one
Uri.Builder builder = uri.buildUpon();
builder.encodedAuthority("" + userId + "@" + uri.getEncodedAuthority());
return builder.build();
}
}
return uri;
}
private int handleIncomingUser(Uri uri, int pid, int uid, int modeFlags, boolean allowNonFull,
int userId) {
if (userId == UserHandle.USER_CURRENT) {
userId = ActivityManager.getCurrentUser();
}
if (userId == UserHandle.USER_ALL) {
mContext.enforceCallingOrSelfPermission(
Manifest.permission.INTERACT_ACROSS_USERS_FULL, "No access to " + uri);
} else if (userId < 0) {
throw new IllegalArgumentException("Invalid user: " + userId);
} else if (userId != UserHandle.getCallingUserId()) {
if (checkUriPermission(uri, pid, uid, modeFlags,
userId) != PackageManager.PERMISSION_GRANTED) {
boolean allow = false;
if (mContext.checkCallingOrSelfPermission(
Manifest.permission.INTERACT_ACROSS_USERS_FULL)
== PackageManager.PERMISSION_GRANTED) {
allow = true;
} else if (allowNonFull && mContext.checkCallingOrSelfPermission(
Manifest.permission.INTERACT_ACROSS_USERS)
== PackageManager.PERMISSION_GRANTED) {
allow = true;
}
if (!allow) {
final String permissions = allowNonFull
? (Manifest.permission.INTERACT_ACROSS_USERS_FULL + " or " +
Manifest.permission.INTERACT_ACROSS_USERS)
: Manifest.permission.INTERACT_ACROSS_USERS_FULL;
throw new SecurityException("No access to " + uri + ": neither user " + uid
+ " nor current process has " + permissions);
}
}
}
return userId;
}
private int getJobState(PrintWriter pw) throws Exception {
checkPermission("force timeout jobs");
int userId = UserHandle.USER_SYSTEM;
String opt;
while ((opt = getNextOption()) != null) {
switch (opt) {
case "-u":
case "--user":
userId = UserHandle.parseUserArg(getNextArgRequired());
break;
default:
pw.println("Error: unknown option '" + opt + "'");
return -1;
}
}
if (userId == UserHandle.USER_CURRENT) {
userId = ActivityManager.getCurrentUser();
}
final String pkgName = getNextArgRequired();
final String jobIdStr = getNextArgRequired();
final int jobId = Integer.parseInt(jobIdStr);
final long ident = Binder.clearCallingIdentity();
try {
int ret = mInternal.getJobState(pw, pkgName, userId, jobId);
printError(ret, pkgName, userId, jobId);
return ret;
} finally {
Binder.restoreCallingIdentity(ident);
}
}
private int handleIncomingUser(Uri uri, int pid, int uid, int modeFlags, boolean allowNonFull,
int userId) {
if (userId == UserHandle.USER_CURRENT) {
userId = ActivityManager.getCurrentUser();
}
if (userId == UserHandle.USER_ALL) {
mContext.enforceCallingOrSelfPermission(
Manifest.permission.INTERACT_ACROSS_USERS_FULL, TAG);
} else if (userId < 0) {
throw new IllegalArgumentException("Invalid user: " + userId);
} else if (userId != UserHandle.getCallingUserId()) {
if (checkUriPermission(uri, pid, uid, modeFlags,
userId) != PackageManager.PERMISSION_GRANTED) {
boolean allow = false;
if (mContext.checkCallingOrSelfPermission(
Manifest.permission.INTERACT_ACROSS_USERS_FULL)
== PackageManager.PERMISSION_GRANTED) {
allow = true;
} else if (allowNonFull && mContext.checkCallingOrSelfPermission(
Manifest.permission.INTERACT_ACROSS_USERS)
== PackageManager.PERMISSION_GRANTED) {
allow = true;
}
if (!allow) {
final String permissions = allowNonFull
? (Manifest.permission.INTERACT_ACROSS_USERS_FULL + " or " +
Manifest.permission.INTERACT_ACROSS_USERS)
: Manifest.permission.INTERACT_ACROSS_USERS_FULL;
throw new SecurityException(TAG + "Neither user " + uid
+ " nor current process has " + permissions);
}
}
}
return userId;
}
int parseUserOpMode(int defMode, PrintWriter err) throws RemoteException {
userId = UserHandle.USER_CURRENT;
opStr = null;
modeStr = null;
for (String argument; (argument = getNextArg()) != null;) {
if ("--user".equals(argument)) {
userId = UserHandle.parseUserArg(getNextArgRequired());
} else {
if (opStr == null) {
opStr = argument;
} else if (modeStr == null) {
modeStr = argument;
break;
}
}
}
if (opStr == null) {
err.println("Error: Operation not specified.");
return -1;
}
op = strOpToOp(opStr, err);
if (op < 0) {
return -1;
}
if (modeStr != null) {
if ((mode=strModeToMode(modeStr, err)) < 0) {
return -1;
}
} else {
mode = defMode;
}
return 0;
}
public final int compare(ResolveInfo a, ResolveInfo b) {
// We want to put the one targeted to another user at the end of the dialog.
if (a.targetUserId != UserHandle.USER_CURRENT) {
return 1;
}
if (b.targetUserId != UserHandle.USER_CURRENT) {
return -1;
}
CharSequence sa = a.loadLabel(mPM);
if (sa == null) sa = a.activityInfo.name;
CharSequence sb = b.loadLabel(mPM);
if (sb == null) sb = b.activityInfo.name;
return mCollator.compare(sa.toString(), sb.toString());
}
/** @hide */
public Uri validateIncomingUri(Uri uri) throws SecurityException {
String auth = uri.getAuthority();
if (!mSingleUser) {
int userId = getUserIdFromAuthority(auth, UserHandle.USER_CURRENT);
if (userId != UserHandle.USER_CURRENT && userId != mContext.getUserId()) {
throw new SecurityException("trying to query a ContentProvider in user "
+ mContext.getUserId() + " with a uri belonging to user " + userId);
}
}
if (!matchesOurAuthorities(getAuthorityWithoutUserId(auth))) {
String message = "The authority of the uri " + uri + " does not match the one of the "
+ "contentProvider: ";
if (mAuthority != null) {
message += mAuthority;
} else {
message += Arrays.toString(mAuthorities);
}
throw new SecurityException(message);
}
// Normalize the path by removing any empty path segments, which can be
// a source of security issues.
final String encodedPath = uri.getEncodedPath();
if (encodedPath != null && encodedPath.indexOf("//") != -1) {
final Uri normalized = uri.buildUpon()
.encodedPath(encodedPath.replaceAll("//+", "/")).build();
Log.w(TAG, "Normalized " + uri + " to " + normalized
+ " to avoid possible security issues");
return normalized;
} else {
return uri;
}
}
int runSetStandbyBucket(PrintWriter pw) throws RemoteException {
int userId = UserHandle.USER_CURRENT;
String opt;
while ((opt=getNextOption()) != null) {
if (opt.equals("--user")) {
userId = UserHandle.parseUserArg(getNextArgRequired());
} else {
getErrPrintWriter().println("Error: Unknown option: " + opt);
return -1;
}
}
String packageName = getNextArgRequired();
String value = getNextArgRequired();
int bucket = bucketNameToBucketValue(value);
if (bucket < 0) return -1;
boolean multiple = peekNextArg() != null;
IUsageStatsManager usm = IUsageStatsManager.Stub.asInterface(ServiceManager.getService(
Context.USAGE_STATS_SERVICE));
if (!multiple) {
usm.setAppStandbyBucket(packageName, bucketNameToBucketValue(value), userId);
} else {
ArrayList<AppStandbyInfo> bucketInfoList = new ArrayList<>();
bucketInfoList.add(new AppStandbyInfo(packageName, bucket));
while ((packageName = getNextArg()) != null) {
value = getNextArgRequired();
bucket = bucketNameToBucketValue(value);
if (bucket < 0) continue;
bucketInfoList.add(new AppStandbyInfo(packageName, bucket));
}
ParceledListSlice<AppStandbyInfo> slice = new ParceledListSlice<>(bucketInfoList);
usm.setAppStandbyBuckets(slice, userId);
}
return 0;
}
int runGetStandbyBucket(PrintWriter pw) throws RemoteException {
int userId = UserHandle.USER_CURRENT;
String opt;
while ((opt=getNextOption()) != null) {
if (opt.equals("--user")) {
userId = UserHandle.parseUserArg(getNextArgRequired());
} else {
getErrPrintWriter().println("Error: Unknown option: " + opt);
return -1;
}
}
String packageName = getNextArg();
IUsageStatsManager usm = IUsageStatsManager.Stub.asInterface(ServiceManager.getService(
Context.USAGE_STATS_SERVICE));
if (packageName != null) {
int bucket = usm.getAppStandbyBucket(packageName, null, userId);
pw.println(bucket);
} else {
ParceledListSlice<AppStandbyInfo> buckets = usm.getAppStandbyBuckets(
SHELL_PACKAGE_NAME, userId);
for (AppStandbyInfo bucketInfo : buckets.getList()) {
pw.print(bucketInfo.mPackageName); pw.print(": ");
pw.println(bucketInfo.mStandbyBucket);
}
}
return 0;
}
@Override
public ContentProviderResult[] applyBatch(String callingPkg,
ArrayList<ContentProviderOperation> operations)
throws OperationApplicationException {
int numOperations = operations.size();
final int[] userIds = new int[numOperations];
for (int i = 0; i < numOperations; i++) {
ContentProviderOperation operation = operations.get(i);
Uri uri = operation.getUri();
userIds[i] = getUserIdFromUri(uri);
uri = validateIncomingUri(uri);
uri = maybeGetUriWithoutUserId(uri);
// Rebuild operation if we changed the Uri above
if (!Objects.equals(operation.getUri(), uri)) {
operation = new ContentProviderOperation(operation, uri);
operations.set(i, operation);
}
if (operation.isReadOperation()) {
if (enforceReadPermission(callingPkg, uri, null)
!= AppOpsManager.MODE_ALLOWED) {
throw new OperationApplicationException("App op not allowed", 0);
}
}
if (operation.isWriteOperation()) {
if (enforceWritePermission(callingPkg, uri, null)
!= AppOpsManager.MODE_ALLOWED) {
throw new OperationApplicationException("App op not allowed", 0);
}
}
}
final String original = setCallingPackage(callingPkg);
try {
ContentProviderResult[] results = ContentProvider.this.applyBatch(operations);
if (results != null) {
for (int i = 0; i < results.length ; i++) {
if (userIds[i] != UserHandle.USER_CURRENT) {
// Adding the userId to the uri.
results[i] = new ContentProviderResult(results[i], userIds[i]);
}
}
}
return results;
} finally {
setCallingPackage(original);
}
}
public ResolveInfo() {
targetUserId = UserHandle.USER_CURRENT;
}
int runDumpHeap(PrintWriter pw) throws RemoteException {
final PrintWriter err = getErrPrintWriter();
boolean managed = true;
boolean mallocInfo = false;
int userId = UserHandle.USER_CURRENT;
boolean runGc = false;
String opt;
while ((opt=getNextOption()) != null) {
if (opt.equals("--user")) {
userId = UserHandle.parseUserArg(getNextArgRequired());
if (userId == UserHandle.USER_ALL) {
err.println("Error: Can't dump heap with user 'all'");
return -1;
}
} else if (opt.equals("-n")) {
managed = false;
} else if (opt.equals("-g")) {
runGc = true;
} else if (opt.equals("-m")) {
managed = false;
mallocInfo = true;
} else {
err.println("Error: Unknown option: " + opt);
return -1;
}
}
String process = getNextArgRequired();
String heapFile = getNextArgRequired();
File file = new File(heapFile);
file.delete();
ParcelFileDescriptor fd = openFileForSystem(heapFile, "w");
if (fd == null) {
return -1;
}
if (!mInterface.dumpHeap(process, userId, managed, mallocInfo, runGc, heapFile, fd)) {
err.println("HEAP DUMP FAILED on process " + process);
return -1;
}
return 0;
}
int runSendTrimMemory(PrintWriter pw) throws RemoteException {
int userId = UserHandle.USER_CURRENT;
String opt;
while ((opt = getNextOption()) != null) {
if (opt.equals("--user")) {
userId = UserHandle.parseUserArg(getNextArgRequired());
if (userId == UserHandle.USER_ALL) {
getErrPrintWriter().println("Error: Can't use user 'all'");
return -1;
}
} else {
getErrPrintWriter().println("Error: Unknown option: " + opt);
return -1;
}
}
String proc = getNextArgRequired();
String levelArg = getNextArgRequired();
int level;
switch (levelArg) {
case "HIDDEN":
level = ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN;
break;
case "RUNNING_MODERATE":
level = ComponentCallbacks2.TRIM_MEMORY_RUNNING_MODERATE;
break;
case "BACKGROUND":
level = ComponentCallbacks2.TRIM_MEMORY_BACKGROUND;
break;
case "RUNNING_LOW":
level = ComponentCallbacks2.TRIM_MEMORY_RUNNING_LOW;
break;
case "MODERATE":
level = ComponentCallbacks2.TRIM_MEMORY_MODERATE;
break;
case "RUNNING_CRITICAL":
level = ComponentCallbacks2.TRIM_MEMORY_RUNNING_CRITICAL;
break;
case "COMPLETE":
level = ComponentCallbacks2.TRIM_MEMORY_COMPLETE;
break;
default:
try {
level = Integer.parseInt(levelArg);
} catch (NumberFormatException e) {
getErrPrintWriter().println("Error: Unknown level option: " + levelArg);
return -1;
}
}
if (!mInterface.setProcessMemoryTrimLevel(proc, userId, level)) {
getErrPrintWriter().println("Unknown error: failed to set trim level");
return -1;
}
return 0;
}