I have a couple of screens in which there are upload buttons.
I also have functions to check if there is either a 3g or a wifi connection present and a function that sets the buttons to grey if there is no connection and green if there is. The only problem is that this is only triggered when the layout is first created, but instead I want it to be triggered whenever there is a change in connectivity.
Is there a way to do this? Conceptually I want a broadcast receiver in my main menu class that triggers the refresh button function but I am not sure how to do this.
I went through the code here: http://www.netmite.com/android/mydroid/frameworks/base/core/java/android/net/NetworkConnectivityListener.java
and the suggestions here BroadcastReceiver as inner class but I have had no luck
The broadcast receiver works great when it is a separate class, but I want to integrate it into various activities and I am not sure how to proceed.
Any direction would be helpful
private void updateUI(){
File[] allDir = DataWriter.getRootDir(profile).listFiles();
if(allDir==null){
uploadButton.setBackgroundResource(R.drawable.gray_button);
uploadButton.setEnabled(false);
return;
}
//MAXIM
boolean anyfiles = false;
outerloop:
for(File dir: allDir){
if(dir.getName().contains(profile[12])){
File[] allFiles = dir.listFiles();
for(File f:allFiles){
if(f.isDirectory())continue;
anyfiles = true;
break outerloop;
}
}
}
//
if (!anyfiles) {
uploadButton.setBackgroundResource(R.drawable.gray_button);
uploadButton.setEnabled(false);
} else {
if (intOpt==0) {
if(checkWifi()==true)
{
uploadButton.setBackgroundResource(R.drawable.red_button);
uploadButton.setEnabled(true);
}
else {
//MAXIM-changed blue_button to red_button
uploadButton.setBackgroundResource(R.drawable.gray_button);
uploadButton.setEnabled(false);
}
//uploadButton.setEnabled(true);
}
else if(intOpt==1)
{
if(check3G()||checkWifi())
{
uploadButton.setBackgroundResource(R.drawable.red_button);
uploadButton.setEnabled(true);
}
else {
//MAXIM-changed blue_button to red_button
uploadButton.setBackgroundResource(R.drawable.gray_button);
uploadButton.setEnabled(false);
}
//uploadButton.setEnabled(true);
}
else {
//MAXIM-changed blue_button to red_button
uploadButton.setBackgroundResource(R.drawable.gray_button);
uploadButton.setEnabled(false);
}
//uploadButton.setEnabled(true);
}
}
public boolean checkWifi() {
ConnectivityManager conMan = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
android.net.NetworkInfo.State wifi = conMan.getNetworkInfo(1).getState();
if (wifi == android.net.NetworkInfo.State.CONNECTED) {
return true;
} else {
return false;
}
}
public boolean check3G() {
ConnectivityManager conMan = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
android.net.NetworkInfo.State mobile = conMan.getNetworkInfo(0).getState();
if (mobile == android.net.NetworkInfo.State.CONNECTED) {
return true;
} else {
return false;
}
}
Basically I need updateUI(); to be triggered when there is a change in connection.
Thanks
Follow up:
I'm getting the error "Return type for the method is missing" for the following code
BroadcastReceiver networkStateReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
Log.w("Network Listener", "Network Type Changed");
UpdateUI();
}
};
IntentFilter filter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
registerReceiver(networkStateReceiver, filter); // This is the line that gives me an error
Am I missing something?
EDIT: More code
This is the main menu activity - a screen where the user can do whatever action they desire, change settings, etc
public class MenuMainActivity extends Activity { private BHBluetoothService mBluetoothService = null;
private String[] profile = null;
private String username = null;
private String password = null;
public static String upass = null;
public static String uuname = null;
private double[] params = new double[2];
private double[] heart = null;
private double[] stride = null;
private double[] speed = null;
private List<File> files = new ArrayList<File>();
public static int intOpt=0;
private Button baselineButton,exerciseButton,fireTrainButton,
fireSuppButton,emerButton,rehaButton,uploadButton;
private static final int PROGRESS_DIALOG = 0;
private ProgressThread progressThread;
private ProgressDialog progressDialog;
private RadioButton wifiButton, button3g;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_menu);
initializeBluetooth();
Bundle extras = this.getIntent().getExtras();
if (extras.containsKey("profile")) {
try {
profile = extras.getStringArray("profile");
username = profile[0];
password = profile[1];
upass=password;
uuname=username;
initializeUI();
} catch (Exception e) {
e.printStackTrace();
}
} else {
finish();
}
if (extras.containsKey("params") && extras.containsKey("heart") && extras.containsKey("stride") && extras.containsKey("speed")) {
params = extras.getDoubleArray("params");
heart = extras.getDoubleArray("heart");
stride = extras.getDoubleArray("stride");
speed = extras.getDoubleArray("speed");
}
updateUI();
}
Well; that's the starting code for the main menu activity.
I want to trigger updateUI(); on any connection state change.
