Throw exception to main acivity from Dialog

Question

I'm coding an android application must catch in the main activity all throwed exceptions and send email to me. But in some areas in my application i can't just throw the exception by the method :

Example : onCreateDialog() in a custom DialogFragment :

    builder.setView(addCatLayout)
                    // Add action buttons
                    .setPositiveButton(R.string.button_ok,
                            new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int id) {

                                    try {
                                    // Save some data in DB here
                                    } catch (Exception e) {
                                        // TODO Auto-generated catch block
                                        e.printStackTrace();
                                    }
                                    dialog.dismiss();
                                }
                            })
                    .setNegativeButton(R.string.button_cancel,
                            new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int id) {
                                    // Close the dialog window
                                    dialog.dismiss();
                                }
                            });
            return builder.create();

My question how can i remove try catch block from this method and throw directly the exception to be catched in my main activity ? I want to have only one try catch block in the main activity that's catch all exceptions and sends mail to me. It's this possible ?

Thank you !

Answer 1

If you create the dialog in activity and want to handle the Exception there

activity:

protected void handleException(Exception e) {
    e.printStackTrace();
}

OnClick:

@Override
public void onClick(DialogInterface dialog, int id) {
    try {
        // Save some data in DB here
    } catch (Exception e) {
        // TODO Auto-generated catch block
        handleException(e); // methods are visible to nested classes
    }
    dialog.dismiss();
 }

If you are creating the dialog outside activity, then you should

public void handleException(Exception e) {
    e.printStackTrace();
}

Dialog creating class

public static void createDialog(final YourActivity activity) {

....

    @Override
    public void onClick(DialogInterface dialog, int id) {
        try {
            // Save some data in DB here
        } catch (Exception e) {
            activity.handleException(e);
        }
        dialog.dismiss();
     }


}

But that way it is a better practice to make your Activity implement some interface, like

public final class YourActivity implements ExceptionHandler {

Where the Exception handler is

public interface ExceptionHandler {
    void handleException(Exception e);
}

And pass the Exception handler interface

public void createDialog(final ExceptionHandler handler) {