alarm dialog for turn on wifi

问题

I am new in android programming. I searched on the internet but i can't find any solution, maybe for this i have not good english. anyway. When user clicked on the web link i want to show an alarm dialog to user that turn on wifi, and then user clicked on the OK button, wifi settings is shows.

This is my TextView with link:

  <TextView
    android:id="@+id/sitename"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/site2"
    android:background="@color/white"
    android:layout_below="@id/address"
    android:layout_toLeftOf="@id/site"
    android:paddingTop="3dp"
    android:paddingRight="5dp"
    android:autoLink="web"/>

and i set text of web with strings.xml.

sorry if my question was duplicated and sorry for my poor english. Cheers.

EDIT: Contact.java:

public class Contact extends Fragment {

public String fonts="Tahoma.TTF";
Typeface face;

TextView siteName;

@Override 
public View onCreateView(LayoutInflater inflater,ViewGroup container, Bundle savedInstanceState){
    View view=inflater.inflate(R.layout.contact, container, false);
            siteName=(TextView)view.findViewById(R.id.sitename);
    siteName.setOnClickListener(onClickListener);

    return view;
}

private OnClickListener onClickListener=new OnClickListener(){

    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        switch(v.getId()){
        case R.id.sitename:
            AlertDialog.Builder alertDialog=new AlertDialog.Builder(getActivity());
            alertDialog.setTitle("Turn on WI-Fi..");
            alertDialog.setMessage("Do you want to go to wifi settings?");
            alertDialog.setNegativeButton("Cancle", new DialogInterface.OnClickListener() {

                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub
                    dialog.cancel();
                }
            });
            alertDialog.setPositiveButton("OK", new DialogInterface.OnClickListener() {

                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub
                    startActivity(new Intent(WifiManager.ACTION_PICK_WIFI_NETWORK));
                }
            });

            alertDialog.show();

            break;
        }
    }

};
 }

回答1:

Try this on button click:

AlertDialog.Builder alertDialog = new AlertDialog.Builder(
                this);

        // Setting Dialog Title
        alertDialog.setTitle("Confirm...");

        // Setting Dialog Message
        alertDialog.setMessage("Do you want to go to wifi settings?");

        // Setting Icon to Dialog
        // alertDialog.setIcon(R.drawable.ic_launcher);

        // Setting Positive "Yes" Button
        alertDialog.setPositiveButton("yes",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) {

                        // Activity transfer to wifi settings
                        startActivity(new Intent(Settings.ACTION_WIFI_SETTINGS));
                    }
                });

        // Setting Negative "NO" Button
        alertDialog.setNegativeButton("no",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) {
                        // Write your code here to invoke NO event

                        dialog.cancel();
                    }
                });

        // Showing Alert Message
        alertDialog.show();

回答2:

This should work

startActivity(new Intent(WifiManager.ACTION_PICK_WIFI_NETWORK));

回答3:

Try adding the following to the onClick of Button

context.startActivity(new Intent(WifiManager.ACTION_PICK_WIFI_NETWORK));

This will redirect the user directly to the wifi settings screen

Hope this works

来源：https://stackoverflow.com/questions/18811694/alarm-dialog-for-turn-on-wifi