How to Dismiss Alertdialog in Android

How to dismiss AlertDialog in android

Actually there is no any cancel() or dismiss() method from AlertDialog.Builder Class.

So Instead of AlertDialog.Builder optionDialog use AlertDialog instance.

Like,

AlertDialog optionDialog = new AlertDialog.Builder(this).create();

Now, Just call optionDialog.dismiss();

background.setOnClickListener(new OnClickListener() {
    public void onClick(View v) {
        SetBackground();
        // here I want to dismiss it after SetBackground() method 
        optionDialog.dismiss();
    }
});

How can dismiss this alert dialog?

I don't know where you have written your code to launch the dialog. I have replicated your code. And this works as expected.

public class MainActivity extends AppCompatActivity {

    private AlertDialog b;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // custom dialog
        AlertDialog.Builder dialogBuilder = new
                AlertDialog.Builder(this);
        LayoutInflater inflater = getLayoutInflater();
        final View dialogView = inflater.inflate(R.layout.custom_dialog, null);
        dialogBuilder.setView(dialogView);

        Button reject = (Button) dialogView.findViewById(R.id.reject_btn);
        Button accept = (Button) dialogView.findViewById(R.id.accept_btn);

        b = dialogBuilder.create();
        b.show();

        accept.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                b.dismiss();
            }
        });

        reject.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                b.dismiss();
            }
        });
    }
}

And below is the XML. Again a very basic one to match your code

custom_dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
    <Button
        android:layout_width="wrap_content"
        android:id="@+id/reject_btn"
        android:text="Reject"
        android:layout_height="wrap_content" />
    <Button
        android:layout_width="wrap_content"
        android:id="@+id/accept_btn"
        android:text="Accept"
        android:layout_height="wrap_content" />
</LinearLayout>

Dismiss AlertDialog.Builder

Your function should look like that:

public AlertDialog createSigninDialog (){

        final AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);

        LayoutInflater inflater = MainActivity.this.getLayoutInflater();

        View view = inflater.inflate(R.layout.dialog_signin, null);

        builder.setView(view);

        final AlertDialog dialog = builder.create();

        signin = (Button)view.findViewById(R.id.singing);
        user = (EditText)view.findViewById(R.id.user_input);
        password = (EditText)view.findViewById(R.id.password_input);

        signin.setOnClickListener(
                new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        if (user.getText().toString().equals("1234567890") && password.getText().toString().equals("1234")){
                            Toast.makeText(MainActivity.this, "Login", Toast.LENGTH_SHORT).show();
                            //Dismiss here
                            dialog.dismiss();
                        } else {
                            Toast.makeText(MainActivity.this, "Datos incorrectos", Toast.LENGTH_SHORT).show();
                            //Dismiss here
                            dialog.dismiss();
                        }
                    }
                }
        );

        return dialog;
    }

And then you can invoke it like that:

createSigninDialog().show();

Dismiss alertDialog from other function

Save AlertDialog in a private variable. So you can use it later and call dialog.dismiss().

private AlertDialog dialog;

And in your function onReceivedError:

dialog = new AlertDialog.Builder.....

Dismiss AlertDialog from button in custom view

You need to set onClick listener on your custom button.

Try this :

   AlertDialog.Builder builder = new AlertDialog.Builder(contextRef);

    builder.setView(dialogContentView);

    Button btnOk= (Button) dialogContentView.findViewById(R.id.btn_ok);

    builder.setNegativeButton(contextRef.getString(R.string.std_cancel), null);

    AlertDialog dialog = builder.create();

    dialog.show();

    btnOk.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            dialog.dismiss();
        }
    });

That's it !!

How to dismiss AlertDialog.Builder with custom button

Not exactly the answer to the question but i fix the problem using setPositiveButton and custom with SetTextColor and setBackgroundColor.

This is my new code:

        LayoutInflater inflater = getActivity().getLayoutInflater();
    View dialoglayout = inflater.inflate(R.layout.custom_alert_dialog_horarios, null);
    final TextView tv_texto = (TextView) dialoglayout.findViewById(R.id.custom_alert_dialog_horarios_texto);
    final TextView tv_titulo = (TextView) dialoglayout.findViewById(R.id.custom_alert_dialog_horarios_titulo);

    //Preparamos las fuentes personalizadas
    Typeface fontalertaTitulo = Typeface.createFromAsset(getActivity().getAssets(),"fonts/OpenSans-Semibold.ttf");
    Typeface fontalertaMensaje = Typeface.createFromAsset(getActivity().getAssets(),"fonts/OpenSans-Light.ttf");

    tv_titulo.setTypeface(fontalertaTitulo);
    tv_titulo.setText(getResources().getString(R.string.dias_de_cierre_alert_titulo));

    tv_texto.setTypeface(fontalertaMensaje);
    tv_texto.setText(getResources().getString(R.string.dias_de_cierre_texto));

    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    builder.setPositiveButton(getResources().getString(R.string.aceptar), null);        
    builder.setView(dialoglayout);
    //builder.show();
    AlertDialog dialog = builder.create();
    dialog.show();

 // Customize the button
    Button button = dialog.getButton(DialogInterface.BUTTON_POSITIVE);
    button.setTextColor(getResources().getColor(color.donostiakirola_texto_general));
    button.setBackgroundColor(getResources().getColor(color.donostiakirola_fondo_pantalla));  
    //Preparamos las fuentes personalizadas
    Typeface fontTextoBoton = Typeface.createFromAsset(getActivity().getAssets(),"fonts/OpenSans-Semibold.ttf");
    button.setTypeface(fontTextoBoton);

How to dismiss AlertDialog.Builder?

What didn't work about dismiss()?

You should be able to use either Dialog.dismiss(), or Dialog.cancel()

alertDialog.setNeutralButton("Cancel", new DialogInterface.OnClickListener() { // define the 'Cancel' button
    public void onClick(DialogInterface dialog, int which) {
        //Either of the following two lines should work.
        dialog.cancel();
        //dialog.dismiss();
    } 
});

Dismiss AlertDialog.Builder from OnClick

AlertDialog.Builder is best suited for small simple dialog boxes rather than custom dialogs.

The cleanest way to handle custom dialogs is to subclass AlertDialog as a private static class in your context (in this case your activity).

Here is a simplified example:

public class AlertDialogTestActivity extends Activity {

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

        AlertDialog alert = new myCustomAlertDialog(this);
        alert.show();

    }

    private static class myCustomAlertDialog extends AlertDialog {

        protected myCustomAlertDialog(Context context) {
            super(context);

            setTitle("Profile");

            Button connect = new Button(getContext());
            setView(connect);
            connect.setText("Don't push me");
            connect.setOnClickListener(new View.OnClickListener() {

                public void onClick(View v) {
                    // I want the dialog to close at this point
                    dismiss();
                }
            });
        }

    }
}

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