Fixed the reference to the compat version of the widget. Revised the class description.

import com.android.internal.R;

/**

 * A Switch is a two-state toggle switch widget that can select between two

 * options. The user may drag the "thumb" back and forth to choose the selected option,

 * or simply tap to toggle as if it were a checkbox. The {@link #setText(CharSequence) text}

 * property controls the text displayed in the label for the switch, whereas the

 * {@link #setTextOff(CharSequence) off} and {@link #setTextOn(CharSequence) on} text

 * controls the text on the thumb. Similarly, the

 * {@link #setTextAppearance(android.content.Context, int) textAppearance} and the related

 * setTypeface() methods control the typeface and style of label text, whereas the

 * {@link #setSwitchTextAppearance(android.content.Context, int) switchTextAppearance} and

 * the related setSwitchTypeface() methods control that of the thumb.

 * A Switch is a two-state toggle widget. Users can drag the switch "thumb" back

 * and forth to select either of two options or simply tap the switch to toggle

 * between options.

 *

 * <p>{@link androidx.recyclerview.widget.RecyclerView} is a version of

 * the Switch widget which runs on devices back to API 7.</p>

 * <p>The {@link #setText(CharSequence) text} property controls

 * the text of the switch label. The {@link #setTextOn(CharSequence) textOn} and

 * {@link #setTextOff(CharSequence) textOff} properties control the text of the

 * thumb. The {@link #setTextAppearance(int) textAppearance} property and the

 * related {@link #setTypeface(android.graphics.Typeface) setTypeface()} methods

 * control the typeface and style of the switch label. The

 * {@link #setSwitchTextAppearance(android.content.Context, int)

 * switchTextAppearance} property and the related

 * {@link #setSwitchTypeface(android.graphics.Typeface) setSwitchTypeface()}

 * methods control the typeface and style of the thumb text.</p>

 *

 * <p>See the <a href="{@docRoot}guide/topics/ui/controls/togglebutton.html">Toggle Buttons</a>

 * guide.</p>

 * <p class="note"><b>Note:</b> The thumb text is displayed only if the

 * <a href="{@docRoot}reference/android/widget/Switch#attr_android:showText">

 * <code>showText</code></a> attribute is set to {@code true}. See also

 * {@link #setShowText(boolean)} and {@link #getShowText()}.</p>

 *

 * <p>{@link androidx.appcompat.widget.SwitchCompat} provides backward

 * compatibility down to Android 4.0 (API level 14).</p>

 *

 * <p>For more information, see the

 * <a href="{@docRoot}guide/topics/ui/controls/togglebutton.html">

 * Toggle Buttons</a> guide.</p>

 *

 * @attr ref android.R.styleable#Switch_textOn

 * @attr ref android.R.styleable#Switch_textOff