Question

I just making a class thats supposed to be a simple “Do you want to exit?” dialog for each of my activites in my application, and i have some questions. Im a beginner with OOP so dont be mad.

So this is my ExitDialog class:

public class ExitDialog extends Dialog implements OnClickListener
{

private Button dialogOk;
private Button dialogCancel;
private TextView dialogText;

public ExitDialog(Context context)
{
    super(context);

    final Dialog dialog = new Dialog(context, R.style.DialogAnim);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.setContentView(R.layout.exitdialog);

    dialogOk = (Button)dialog.findViewById(R.id.dialogOk);
    dialogCancel = (Button)dialog.findViewById(R.id.dialogCancel);
    dialogText = (TextView)dialog.findViewById(R.id.dialogText);


    //How to reach any reference from R.java ?
    //                    
    //dialogOk.setText(getString(R.string.Yes));
    //ialogText.setText(getString(R.string.Exit));


    dialogOk.setOnClickListener(this);
    dialogCancel.setOnClickListener(this);

    dialog.show();
}

@Override
public void onClick(View v)
{


//Many people said on answers, that i must use **getId()** to compare
//these two views, but i can do just like this, bacause i got the message in logcat!
//but the dismiss() just not get called...
    if(v == dialogOk)
    {
        Log.i("ExitDialog", "dialogOk clicked");
        this.dismiss();

    }

}


}

I have 3 questions for you:

How can i reach my application’s R.java file for String references?
As you see i commented out the getString(R.string.Yes) and getString(R.string.Exit) functions because i cannot use it in this outer class.
Any suggestions about who can i do this?

Second question is about .dismiss(). If i call this.dismiss(), my dialog just dont go away it is stays on screen, why is it occurs? How to dismiss then?

Third question is: How to get the parent activity from this outer dialog class? I need it to call .finish() on it, so my app can exit.

Any suggestions will be greatly appreciated.
Thanks.

Answer 1

Don’t extend your activity by Dialog,extend it by activity.Call your dialog activity like u call normal activity.But in manifest file add below line under your dialog activity:

android:theme="@android:style/Theme.Dialog"

and this above setcontentView of activity:

requestWindowFeature(Window.FEATURE_NO_TITLE);

You will be able to call Resource and dismiss() function normally as you do for rest of the activities.

button.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {
                Intent intent=new Intent(YourActivityName.this,DialogClass.class);
                startActivity(intent);

            }
        });

Dialog Activity:

public class DialogClass extends Activity{
    Button button;
    TextView textView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.custom);

        button=(Button) findViewById(R.id.cancel);//belongs to xml file
        button.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {
                finish();
            }
        });

        textView=(TextView) findViewById(R.id.ttt);////belongs to xml file
        textView.setText(R.string.app_name);
    }
}