Having a lot of trouble getting an icon to huddle into the position I want it in. I looked at 3 different Stack Overflow questions and tried placing the image in a RelativeLayout, LinearLayout, and a TableRow. All with various XML options. Never managed to get the icon to go right and center itself between top and bottom of the allotted space. In the pic below, red is where it is now, blue is where I want it. Here's a pic (of how it looks now, which is incorrect) and the code (imageView1 is what I want to align):

And the code:

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent" android:layout_height="match_parent"
    android:id="@+id/loginScrollView">
    <TableLayout android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:orientation="vertical"
        android:padding="5dp">

        <ImageView android:id="@+id/logoImageView"
            android:layout_width="wrap_content" android:layout_height="wrap_content"
            android:src="@drawable/logo" android:contentDescription="@string/app_name" />

        <TextView android:id="@+id/demoTextView"
            android:layout_width="wrap_content" android:layout_height="wrap_content"
            android:text="@string/logDetails" android:gravity="center_horizontal|center" />

        <EditText android:id="@+id/emailEditText"
            android:layout_width="match_parent" android:layout_height="wrap_content"
            android:hint="@string/loginHint" android:imeOptions="actionNext"
            android:inputType="textEmailAddress" android:padding="20dp" />

        <EditText android:id="@+id/passEditText"
            android:layout_width="match_parent" android:layout_height="wrap_content"
            android:hint="@string/password" android:imeOptions="actionDone"
            android:inputType="textPassword" android:padding="20dp" />

        <TableRow android:id="@+id/rememberTableRow"
            android:layout_width="wrap_content" android:layout_height="wrap_content">
            <TextView android:id="@+id/rememberTextView"
                android:layout_width="wrap_content" android:layout_height="wrap_content"
                android:text="@string/rememberDetails" android:layout_gravity="center" />

            <CheckBox android:id="@+id/rememberCheckBox"
                android:layout_width="wrap_content" android:layout_height="wrap_content"
                android:padding="20dp" />

            <ImageView
                android:id="@+id/imageView1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:onClick="showPopup"
                android:src="@drawable/abs__ic_menu_moreoverflow_holo_dark" android:layout_weight="1" android:layout_gravity="center|right"/>

        </TableRow>

        <TableRow android:id="@+id/buttonTableRow"
            android:layout_width="match_parent" android:layout_height="wrap_content">

            <Button android:id="@+id/registerButton" android:layout_width="0dip"
                android:layout_height="wrap_content" android:layout_gravity="bottom"
                android:layout_weight="1" android:text="@string/register" />

            <Button android:id="@+id/loginButton" android:layout_width="0dip"
                android:layout_height="wrap_content" android:layout_gravity="bottom"
                android:layout_weight="1" android:text="@string/login" />
        </TableRow>

    </TableLayout>
</ScrollView>

Here are the SO questions I've already looked at and tried to use as solutions: Aligning ImageView to right of the layout android Aligning with center in android with hierarchical Layouts Android ImageButton not displaying on right side of the screen

• android
• android-layout

There are multiple options, as far as I can tell. I'll give you two:

First option is to set a scaletype on the ImageView containing the overflow icon. You make it take up all remaining available space and set the scaletype to fitEnd. This will position the icon all the way at the right.

<ImageView android:id="@+id/imageView1"
    android:layout_width="0dp" android:layout_height="wrap_content"
    android:layout_gravity="center_vertical" android:scaleType="fitEnd"
    android:layout_weight="1" android:onClick="showPopup"
    android:src="@drawable/abs__ic_menu_moreoverflow_normal_holo_dark" />

You can accomplish the same effect by setting a weight of 1 on the CheckBox, which will make it 'push' the ImageView with the overflow icon all the way to the right (thanks to a TableRow behaving similarly to a LinearLayout). You can then simply make the ImageView wrap its content. You may want to double check if there are no weird side effects to the clickable region in this case though.

<TableRow android:id="@+id/rememberTableRow"
    android:layout_width="wrap_content" android:layout_height="wrap_content">

    <TextView android:id="@+id/rememberTextView"
        android:layout_width="wrap_content" android:layout_height="wrap_content"
        android:layout_gravity="center" android:text="@string/rememberDetails" />

    <CheckBox android:id="@+id/rememberCheckBox"
        android:layout_width="0dp" android:layout_height="wrap_content"
        android:layout_weight="1" android:padding="20dp" />

    <ImageView android:id="@+id/imageView1"
        android:layout_width="wrap_content" android:layout_height="wrap_content"
        android:layout_gravity="center_vertical" android:onClick="showPopup"
        android:src="@drawable/abs__ic_menu_moreoverflow_normal_holo_dark" />

</TableRow>