Custom alert dialog example

dialog_wijzig_score.xml

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:android="http://schemas.android.com/apk/res/android"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:padding="@dimen/activity_horizontal_margin">
    <TextView
        android:textAppearance="@android:style/TextAppearance.Large"
        android:layout_alignBottom="@+id/spinnerModule"
        android:id="@+id/module"
        android:layout_marginRight="8dp"
        android:text="@string/module"
        android:layout_width="wrap_content"
        android:layout_height="48dp"
        android:gravity="center"/>
    <Spinner
        android:layout_marginTop="8dp"
        tools:listitem="@android:layout/simple_spinner_dropdown_item"
        android:id="@id/spinnerModule"
        android:layout_toRightOf="@id/module"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="24dp"/>
    <TextView
        android:layout_below="@id/spinnerModule"
        android:layout_alignParentRight="true"
        android:id="@+id/onTwenty"
        android:text="/20"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
    <EditText
        android:hint="@string/score_module"
        android:id="@+id/txtScore"
        android:layout_alignBaseline="@id/onTwenty"
        android:layout_toLeftOf="@id/onTwenty"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:inputType="numberDecimal"/>

</RelativeLayout>

your_activity.java

private void showDialog() {
        LayoutInflater li = LayoutInflater.from(getActivity());
        View promptsView = li.inflate(R.layout.dialog_wijzig_score, null);

        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
                getActivity());

        // set prompts.xml to alertdialog builder
        alertDialogBuilder.setView(promptsView);

        
        // set dialog message
        alertDialogBuilder
                .setTitle("Score student")
                .setCancelable(false)
                .setPositiveButton("Bewaren",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int id) {
                                //input
                            }
                        })
                                .setNegativeButton("Annuleren",
                                        new DialogInterface.OnClickListener() {
                                            public void onClick(DialogInterface dialog, int id) {
                                                dialog.cancel();
                                            }
                                        }

                );

        // create alert dialog
        AlertDialog alertDialog = alertDialogBuilder.create();

        // show it
        alertDialog.show();