app/src/main/java/android/support/v7/widget/FriendlySwitchCompat.java

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/*
 * Copyright (c) 2015 Zhang Hai <Dreaming.in.Code.ZH@Gmail.com>
 * All Rights Reserved.
 */

package android.support.v7.widget;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.Rect;
import android.graphics.Region;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.support.annotation.Nullable;
import android.support.v4.graphics.drawable.DrawableCompat;
import android.support.v4.view.MotionEventCompat;
import android.support.v4.view.ViewCompat;
import android.support.v7.appcompat.R;
import android.support.v7.content.res.AppCompatResources;
import android.support.v7.text.AllCapsTransformationMethod;
import android.text.Layout;
import android.text.StaticLayout;
import android.text.TextPaint;
import android.text.TextUtils;
import android.text.method.TransformationMethod;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.SoundEffectConstants;
import android.view.VelocityTracker;
import android.view.ViewConfiguration;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityNodeInfo;
import android.view.animation.Animation;
import android.view.animation.Transformation;
import android.widget.CompoundButton;

/**
 * SwitchCompat is a version of the Switch widget which on devices back to API v7. It does not
 * make any attempt to use the platform provided widget on those devices which it is available
 * normally.
 * <p>
 * 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.
 *