Question

I am new on android und I try to transfer data between two Activities.
Eclipse tell me that the line:

Intent i = new Intent(this, PostDataActivity.class);

Constructor Intent is undefined. What can I do?

@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        btnShowLocation = (Button) findViewById(R.id.ansehen);

        // show location button click event
        btnShowLocation.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // create class object
                gps = new GpsData(StartActivity.this);

                // check if GPS enabled
                if(gps.canGetLocation()){

                    double latitude = gps.getLatitude();
                    double longitude = gps.getLongitude();
                    String mlat = String.valueOf(latitude);

                    // \n is for new line
                    Intent i = new Intent(this, PostDataActivity.class);
                    i.putExtra("Value1", "This value one for ActivityTwo ");

Answer 1

You are trying to initialize your Intent from inside an OnClickListener. Hence, the this parameter you are passing to your constructor refers to the listener, and not your Activity.

To fix the problem use :

Intent i = new Intent(YourActivityName.this, PostDataActivity.class);