How to specify correct dialog size in XML layout file for Android dialog?

Question

I have created an android dialog using an XML layout file like so:

  final Dialog dialog = new Dialog(this);
        dialog.setContentView(R.layout.enabledialog);
        dialog.setTitle("Define message keys and setup");

        Switch locationSwitch = (Switch) dialog.findViewById(R.id.locationSwitch);
        Switch blareSwitch = (Switch) dialog.findViewById(R.id.blareSwitch);

        final EditText locationEdit = (EditText) dialog.findViewById(R.id.locationEdit);
        final EditText blareEdit = (EditText) dialog.findViewById(R.id.blareEdit);

        WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
        lp.copyFrom(dialog.getWindow().getAttributes());
        lp.width = WindowManager.LayoutParams.MATCH_PARENT;
        lp.height = WindowManager.LayoutParams.MATCH_PARENT;

        dialog.show();

        dialog.getWindow().setAttributes(lp);

However, my XML file's contents only take up half of the screen, so when I display the dialog, I am showing extra space, which doesn't look nice:

HERE IS A SKETCH OF HOW THE DIALOG LOOKS (R.layout.enabledialog):

How do I trim this extra space? In android studio, the layout editor assumes the XML file is to take up the whole screen, but really, I only want a small popup window.

Thanks,

Ruchir

---

EDIT: Here is my layout resource file:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#1dd1e9">


    <Switch
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/locationSwitch"
        android:layout_marginTop="46dp"
        android:checked="false"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Blah"
        android:id="@+id/textView"
        android:textSize="30sp"
        android:layout_alignTop="@+id/locationSwitch"
        android:layout_centerHorizontal="true"
        />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:text="Blah Blah Blah"
        android:id="@+id/textView2"
        android:gravity="center"
        android:textSize="20sp"
        android:layout_below="@+id/locationSwitch"
        android:layout_centerHorizontal="true"
        />

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/locationEdit"
        android:layout_below="@+id/textView2"
        android:layout_alignLeft="@+id/textView"
        android:layout_alignStart="@+id/textView"
        android:layout_alignRight="@+id/textView"
        android:layout_alignEnd="@+id/textView"
        android:singleLine = "true"
        android:imeOptions="actionDone" />

    <Switch
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/blareSwitch"
        android:layout_marginTop="40dp"
        android:checked="false"
        android:layout_below="@+id/locationEdit"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Blah"
        android:id="@+id/textView3"
        android:textSize="30sp"
        android:layout_alignBottom="@+id/blareSwitch"
        android:layout_centerHorizontal="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:text="Blah Blah Blah"
        android:id="@+id/textView4"
        android:textSize="20sp"
        android:layout_centerVertical="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/blareEdit"
        android:layout_below="@+id/textView4"
        android:layout_alignLeft="@+id/locationEdit"
        android:layout_alignStart="@+id/locationEdit"
        android:layout_alignRight="@+id/locationEdit"
        android:layout_alignEnd="@+id/locationEdit"
        android:singleLine = "true"
        android:imeOptions="actionDone" />
</RelativeLayout>

Answer 1

Try changing fill_parent to wrap_content in your root RelativeLayout, as well as changing MATCH_PARENT to WRAP_CONTENT in your Java code (or get rid of the whole setAttributes() bit).

I actually had it at MATCH_PARENT because when it was WRAP_CONTENT, the content was overlapping and not fitting properly

Then that's a separate problem that you would need to fix. Start by getting the dialog size to be roughly what you want. Then, use some inspection tool (the new one in AS 2.2, Hierarchy View, uiautomatorviewer, etc.) to start figuring out how to fix your layout to avoid your overlaps.