Question

Is there any way to replace a value in an ArrayAdapter

mPairedDevicesArrayAdapter = new ArrayAdapter<String>(this, R.layout.device_name);
..
..
for (BluetoothDevice device : pairedDevices) {
    String name = MPGDeviceDetailsControl.getDeviceDetails(this, device.getAddress(), device.getName()).getDisplayName();
    mPairedDevicesArrayAdapter.add(name + "\n" + device.getAddress());
}

If I wish to replace one of the entries is there any way of doing it without deleting and reinstering.
Problem with that is that it puts it at the bottom.

Answer 1

Something like this should work to replace items

int i = 0;
for (BluetoothDevice device : pairedDevices) {
    String name = MPGDeviceDetailsControl.getDeviceDetails(this, device.getAddress(), device.getName()).getDisplayName();
    mPairedDevicesArrayAdapter.remove(name); // has to copy all items back 1 position
    mPairedDevicesArrayAdapter.insert(name + "\n" + device.getAddress(), i); // copy them +1 again
    i++;
}

but it would be more efficient, if you have access to the List that is backing this ArrayAdapter and replace / modify that.

ArrayList<Strign> mList = new ArrayList<String>();
mPairedDevicesArrayAdapter = new ArrayAdapter<String>(this, R.layout.device_name, mList);

// setup
mList.add...
mPairedDevicesArrayAdapter.notifyDatasetChanged();

// change something
mList.set(i, newValue); // just a replace, no copy
mPairedDevicesArrayAdapter.notifyDatasetChanged();