AppOps

uid mode & package mode

    /**
     * Get the mode of an app-op.
     *
     * @param code The code of the op
     * @param uid The uid of the package the op belongs to
     * @param packageName The package the op belongs to
     * @param raw If the raw state of eval-ed state should be checked.
     * @param verify If the code should check the package belongs to the uid
     *
     * @return The mode of the op
     */
    private @Mode int checkOperationUnchecked(int code, int uid, @NonNull String packageName,
                boolean raw, boolean verify) {
        synchronized (this) {
            if (verify) {
                checkPackage(uid, packageName);
            }
            if (isOpRestrictedLocked(uid, code, packageName)) {
                return AppOpsManager.MODE_IGNORED;
            }
            code = AppOpsManager.opToSwitch(code);
            UidState uidState = getUidStateLocked(uid, false);
            //uid mode
            if (uidState != null && uidState.opModes != null
                    && uidState.opModes.indexOfKey(code) >= 0) {
                final int rawMode = uidState.opModes.get(code);
                return raw ? rawMode : uidState.evalMode(code, rawMode);
            }
            //package mode
            Op op = getOpLocked(code, uid, packageName, false, verify, false);
            if (op == null) {
                return AppOpsManager.opToDefaultMode(code);
            }
            return raw ? op.mode : op.evalMode();
        }
    }

29 AppOpsService.java