下面列出了android.os.Process#FIRST_APPLICATION_UID 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 void writeToProto(ProtoOutputStream proto, long fieldId) {
long token = proto.start(fieldId);
proto.write(ProcessRecordProto.PID, pid);
proto.write(ProcessRecordProto.PROCESS_NAME, processName);
if (info.uid < Process.FIRST_APPLICATION_UID) {
proto.write(ProcessRecordProto.UID, uid);
} else {
proto.write(ProcessRecordProto.USER_ID, userId);
proto.write(ProcessRecordProto.APP_ID, UserHandle.getAppId(info.uid));
if (uid != info.uid) {
proto.write(ProcessRecordProto.ISOLATED_APP_ID, UserHandle.getAppId(uid));
}
}
proto.write(ProcessRecordProto.PERSISTENT, persistent);
proto.end(token);
}
void toShortString(StringBuilder sb) {
sb.append(pid);
sb.append(':');
sb.append(processName);
sb.append('/');
if (info.uid < Process.FIRST_APPLICATION_UID) {
sb.append(uid);
} else {
sb.append('u');
sb.append(userId);
int appId = UserHandle.getAppId(info.uid);
if (appId >= Process.FIRST_APPLICATION_UID) {
sb.append('a');
sb.append(appId - Process.FIRST_APPLICATION_UID);
} else {
sb.append('s');
sb.append(appId);
}
if (uid != info.uid) {
sb.append('i');
sb.append(UserHandle.getAppId(uid) - Process.FIRST_ISOLATED_UID);
}
}
}
public static void formatUid(StringBuilder sb, int uid) {
if (uid < Process.FIRST_APPLICATION_UID) {
sb.append(uid);
} else {
sb.append('u');
sb.append(getUserId(uid));
final int appId = getAppId(uid);
if (appId >= FIRST_ISOLATED_UID && appId <= LAST_ISOLATED_UID) {
sb.append('i');
sb.append(appId - FIRST_ISOLATED_UID);
} else if (appId >= Process.FIRST_APPLICATION_UID) {
sb.append('a');
sb.append(appId - Process.FIRST_APPLICATION_UID);
} else {
sb.append('s');
sb.append(appId);
}
}
}
/**
* Generate a text representation of the vuid, breaking out its individual
* components -- user, app, isolated, etc.
* @hide
*/
public static void formatUid(PrintWriter pw, int uid) {
if (uid < Process.FIRST_APPLICATION_UID) {
pw.print(uid);
} else {
pw.print('u');
pw.print(getUserId(uid));
final int appId = getAppId(uid);
if (appId >= FIRST_ISOLATED_UID && appId <= LAST_ISOLATED_UID) {
pw.print('i');
pw.print(appId - FIRST_ISOLATED_UID);
} else if (appId >= Process.FIRST_APPLICATION_UID) {
pw.print('a');
pw.print(appId - Process.FIRST_APPLICATION_UID);
} else {
pw.print('s');
pw.print(appId);
}
}
}
public static Integer getUID(String name) {
if (name != null) {
if (name.matches("^[0-9]+$")) {
return Integer.parseInt(name);
}
if (UIDS.containsKey(name)) {
return UIDS.get(name);
} else if (name.startsWith("u")) {
Integer sep = name.indexOf("_");
if (sep > 0) {
Integer uid = Integer.parseInt( name.substring(1, sep) );
Integer gid = Integer.parseInt( name.substring(sep+2) );
return uid * 100000 + ((Process.FIRST_APPLICATION_UID + gid) % 100000);
}
}
}
return -10000;
}
private boolean setWakeLockDisabledStateLocked(WakeLock wakeLock) {
if ((wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK)
== PowerManager.PARTIAL_WAKE_LOCK) {
boolean disabled = false;
final int appid = UserHandle.getAppId(wakeLock.mOwnerUid);
if (appid >= Process.FIRST_APPLICATION_UID) {
// Cached inactive processes are never allowed to hold wake locks.
if (mConstants.NO_CACHED_WAKE_LOCKS) {
disabled = !wakeLock.mUidState.mActive &&
wakeLock.mUidState.mProcState
!= ActivityManager.PROCESS_STATE_NONEXISTENT &&
wakeLock.mUidState.mProcState > ActivityManager.PROCESS_STATE_RECEIVER;
}
if (mDeviceIdleMode) {
// If we are in idle mode, we will also ignore all partial wake locks that are
// for application uids that are not whitelisted.
final UidState state = wakeLock.mUidState;
if (Arrays.binarySearch(mDeviceIdleWhitelist, appid) < 0 &&
Arrays.binarySearch(mDeviceIdleTempWhitelist, appid) < 0 &&
state.mProcState != ActivityManager.PROCESS_STATE_NONEXISTENT &&
state.mProcState >
ActivityManager.PROCESS_STATE_BOUND_FOREGROUND_SERVICE) {
disabled = true;
}
}
}
if (wakeLock.mDisabled != disabled) {
wakeLock.mDisabled = disabled;
return true;
}
}
return false;
}
/** @hide */
public static boolean isApp(int uid) {
if (uid > 0) {
final int appId = getAppId(uid);
return appId >= Process.FIRST_APPLICATION_UID && appId <= Process.LAST_APPLICATION_UID;
} else {
return false;
}
}
/**
* Returns the app id for a given shared app gid.
* @hide
*/
public static int getAppIdFromSharedAppGid(int gid) {
final int noUserGid = getAppId(gid);
if (noUserGid < FIRST_SHARED_APPLICATION_GID ||
noUserGid > LAST_SHARED_APPLICATION_GID) {
throw new IllegalArgumentException(Integer.toString(gid) + " is not a shared app gid");
}
return (noUserGid + Process.FIRST_APPLICATION_UID) - FIRST_SHARED_APPLICATION_GID;
}
private List<String> getSettingsNamesLocked(int settingsType, int userId) {
boolean instantApp;
if (UserHandle.getAppId(Binder.getCallingUid()) < Process.FIRST_APPLICATION_UID) {
instantApp = false;
} else {
ApplicationInfo ai = getCallingApplicationInfoOrThrow();
instantApp = ai.isInstantApp();
}
if (instantApp) {
return new ArrayList<String>(getInstantAppAccessibleSettings(settingsType));
} else {
return mSettingsRegistry.getSettingsNamesLocked(settingsType, userId);
}
}
private void enforceSettingReadable(String settingName, int settingsType, int userId) {
if (UserHandle.getAppId(Binder.getCallingUid()) < Process.FIRST_APPLICATION_UID) {
return;
}
ApplicationInfo ai = getCallingApplicationInfoOrThrow();
if (!ai.isInstantApp()) {
return;
}
if (!getInstantAppAccessibleSettings(settingsType).contains(settingName)
&& !getOverlayInstantAppAccessibleSettings(settingsType).contains(settingName)) {
throw new SecurityException("Setting " + settingName + " is not accessible from"
+ " ephemeral package " + getCallingPackage());
}
}
public static String getUIDName(Integer id) {
if (UNAMES.containsKey(id)) {
return UNAMES.get(id);
} else if (id >= 10000) {
Integer uid = id / 100000;
Integer gid = id % Process.FIRST_APPLICATION_UID;
return "u" + uid + "_a" + gid + "";
}
return null;
}
public static boolean isPrivileged(final PackageManager pm, final int uid) {
if (uid < 0) return false;
if (uid < Process.FIRST_APPLICATION_UID) return true;
final String[] pkgs = pm.getPackagesForUid(uid);
if (pkgs == null) return false;
for (final String pkg : pkgs) try {
if (isPrivileged(pm.getApplicationInfo(pkg, 0))) return true;
} catch (final NameNotFoundException ignored) {}
return false;
}
public Session(WindowManagerService service, IWindowSessionCallback callback,
IInputMethodClient client, IInputContext inputContext) {
mService = service;
mCallback = callback;
mClient = client;
mUid = Binder.getCallingUid();
mPid = Binder.getCallingPid();
mLastReportedAnimatorScale = service.getCurrentAnimatorScale();
mCanAddInternalSystemWindow = service.mContext.checkCallingOrSelfPermission(
INTERNAL_SYSTEM_WINDOW) == PERMISSION_GRANTED;
mCanHideNonSystemOverlayWindows = service.mContext.checkCallingOrSelfPermission(
HIDE_NON_SYSTEM_OVERLAY_WINDOWS) == PERMISSION_GRANTED;
mCanAcquireSleepToken = service.mContext.checkCallingOrSelfPermission(DEVICE_POWER)
== PERMISSION_GRANTED;
mShowingAlertWindowNotificationAllowed = mService.mShowAlertWindowNotifications;
mDragDropController = mService.mDragDropController;
StringBuilder sb = new StringBuilder();
sb.append("Session{");
sb.append(Integer.toHexString(System.identityHashCode(this)));
sb.append(" ");
sb.append(mPid);
if (mUid < Process.FIRST_APPLICATION_UID) {
sb.append(":");
sb.append(mUid);
} else {
sb.append(":u");
sb.append(UserHandle.getUserId(mUid));
sb.append('a');
sb.append(UserHandle.getAppId(mUid));
}
sb.append("}");
mStringName = sb.toString();
synchronized (mService.mWindowMap) {
if (mService.mInputMethodManager == null && mService.mHaveInputMethods) {
IBinder b = ServiceManager.getService(
Context.INPUT_METHOD_SERVICE);
mService.mInputMethodManager = IInputMethodManager.Stub.asInterface(b);
}
}
long ident = Binder.clearCallingIdentity();
try {
// Note: it is safe to call in to the input method manager
// here because we are not holding our lock.
if (mService.mInputMethodManager != null) {
mService.mInputMethodManager.addClient(client, inputContext,
mUid, mPid);
} else {
client.setUsingInputMethod(false);
}
client.asBinder().linkToDeath(this, 0);
} catch (RemoteException e) {
// The caller has died, so we can just forget about this.
try {
if (mService.mInputMethodManager != null) {
mService.mInputMethodManager.removeClient(client);
}
} catch (RemoteException ee) {
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
/**
* Adds an app to the temporary whitelist and resets the endTime for granting the
* app an exemption to access network and acquire wakelocks.
*/
void addPowerSaveTempWhitelistAppDirectInternal(int callingUid, int appId,
long duration, boolean sync, String reason) {
final long timeNow = SystemClock.elapsedRealtime();
boolean informWhitelistChanged = false;
synchronized (this) {
int callingAppId = UserHandle.getAppId(callingUid);
if (callingAppId >= Process.FIRST_APPLICATION_UID) {
if (!mPowerSaveWhitelistSystemAppIds.get(callingAppId)) {
throw new SecurityException("Calling app " + UserHandle.formatUid(callingUid)
+ " is not on whitelist");
}
}
duration = Math.min(duration, mConstants.MAX_TEMP_APP_WHITELIST_DURATION);
Pair<MutableLong, String> entry = mTempWhitelistAppIdEndTimes.get(appId);
final boolean newEntry = entry == null;
// Set the new end time
if (newEntry) {
entry = new Pair<>(new MutableLong(0), reason);
mTempWhitelistAppIdEndTimes.put(appId, entry);
}
entry.first.value = timeNow + duration;
if (DEBUG) {
Slog.d(TAG, "Adding AppId " + appId + " to temp whitelist. New entry: " + newEntry);
}
if (newEntry) {
// No pending timeout for the app id, post a delayed message
try {
mBatteryStats.noteEvent(BatteryStats.HistoryItem.EVENT_TEMP_WHITELIST_START,
reason, appId);
} catch (RemoteException e) {
}
postTempActiveTimeoutMessage(appId, duration);
updateTempWhitelistAppIdsLocked(appId, true);
if (sync) {
informWhitelistChanged = true;
} else {
mHandler.obtainMessage(MSG_REPORT_TEMP_APP_WHITELIST_CHANGED, appId, 1)
.sendToTarget();
}
reportTempWhitelistChangedLocked();
}
}
if (informWhitelistChanged) {
mNetworkPolicyManagerInternal.onTempPowerSaveWhitelistChange(appId, true);
}
}
void handleShowAppErrorUi(Message msg) {
AppErrorDialog.Data data = (AppErrorDialog.Data) msg.obj;
boolean showBackground = Settings.Secure.getInt(mContext.getContentResolver(),
Settings.Secure.ANR_SHOW_BACKGROUND, 0) != 0;
AppErrorDialog dialogToShow = null;
final String packageName;
final int userId;
synchronized (mService) {
final ProcessRecord proc = data.proc;
final AppErrorResult res = data.result;
if (proc == null) {
Slog.e(TAG, "handleShowAppErrorUi: proc is null");
return;
}
packageName = proc.info.packageName;
userId = proc.userId;
if (proc.crashDialog != null) {
Slog.e(TAG, "App already has crash dialog: " + proc);
if (res != null) {
res.set(AppErrorDialog.ALREADY_SHOWING);
}
return;
}
boolean isBackground = (UserHandle.getAppId(proc.uid)
>= Process.FIRST_APPLICATION_UID
&& proc.pid != MY_PID);
for (int profileId : mService.mUserController.getCurrentProfileIds()) {
isBackground &= (userId != profileId);
}
if (isBackground && !showBackground) {
Slog.w(TAG, "Skipping crash dialog of " + proc + ": background");
if (res != null) {
res.set(AppErrorDialog.BACKGROUND_USER);
}
return;
}
final boolean showFirstCrash = Settings.Global.getInt(
mContext.getContentResolver(),
Settings.Global.SHOW_FIRST_CRASH_DIALOG, 0) != 0;
final boolean showFirstCrashDevOption = Settings.Secure.getIntForUser(
mContext.getContentResolver(),
Settings.Secure.SHOW_FIRST_CRASH_DIALOG_DEV_OPTION,
0,
mService.mUserController.getCurrentUserId()) != 0;
final boolean crashSilenced = mAppsNotReportingCrashes != null &&
mAppsNotReportingCrashes.contains(proc.info.packageName);
if ((mService.canShowErrorDialogs() || showBackground) && !crashSilenced
&& (showFirstCrash || showFirstCrashDevOption || data.repeating)) {
proc.crashDialog = dialogToShow = new AppErrorDialog(mContext, mService, data);
} else {
// The device is asleep, so just pretend that the user
// saw a crash dialog and hit "force quit".
if (res != null) {
res.set(AppErrorDialog.CANT_SHOW);
}
}
}
// If we've created a crash dialog, show it without the lock held
if (dialogToShow != null) {
Slog.i(TAG, "Showing crash dialog for package " + packageName + " u" + userId);
dialogToShow.show();
}
}
/** Update wakeup counters for the given WakeupEvent. */
public void countEvent(WakeupEvent ev) {
totalWakeups++;
switch (ev.uid) {
case Process.ROOT_UID:
rootWakeups++;
break;
case Process.SYSTEM_UID:
systemWakeups++;
break;
case NO_UID:
noUidWakeups++;
break;
default:
if (ev.uid >= Process.FIRST_APPLICATION_UID) {
applicationWakeups++;
} else {
nonApplicationWakeups++;
}
break;
}
switch (ev.dstHwAddr.getAddressType()) {
case MacAddress.TYPE_UNICAST:
l2UnicastCount++;
break;
case MacAddress.TYPE_MULTICAST:
l2MulticastCount++;
break;
case MacAddress.TYPE_BROADCAST:
l2BroadcastCount++;
break;
default:
break;
}
increment(ethertypes, ev.ethertype);
if (ev.ipNextHeader >= 0) {
increment(ipNextHeaders, ev.ipNextHeader);
}
}
public static boolean isAppProcess() {
int uid = Process.myUid();
return uid >= Process.FIRST_APPLICATION_UID && uid <= Process.LAST_APPLICATION_UID;
}
private boolean isNewSsaidSetting(String name) {
return Settings.Secure.ANDROID_ID.equals(name)
&& UserHandle.getAppId(Binder.getCallingUid()) >= Process.FIRST_APPLICATION_UID;
}
public static boolean isApplication(int uid) {
uid = Util.getAppId(uid);
return (uid >= Process.FIRST_APPLICATION_UID && uid <= Process.LAST_APPLICATION_UID);
}