I am using bellow code to get Signal Strength in Lte.
for (final CellInfo info : tm.getAllCellInfo()) {
if (info instanceof CellInfoLte) {
final CellSignalStrengthLte lte = ((CellInfoLte) info).getCellSignalStrength();
lte.getDbm();
}
}
But getAllCellInfo in returning NULL. So what is way to initialize CellSignalStrengthLte without calling tm.getAllCellInfo? my API version is 17.