UICheckboxPrefs.cs

1，bool isChecked：false 为“初始”状态，true为“选中”；

2,bool startsChecked:true，一运行，就显示UISprite :checkSprite;

3，UISprite checkSprite：一般为“选中”状态的UI；

using UnityEngine;

using AnimationOrTween;

[AddComponentMenu("WuKk/UI/Checkbox Prefs")]

publicclass UICheckboxPrefs : MonoBehaviour

{

static public UICheckboxPrefs current;

public delegate void OnStateChange (bool state);

///

/// Sprite that's visible when the 'isChecked' status is 'true'.

///

public UISprite checkSprite;

///

/// Animation to play on the checkmark sprite, if any.

///

public Animation checkAnimation;

///

/// Whether the checkbox starts checked.

///

public bool startsChecked = true;

///

/// If the checkbox is part of a radio button group, specify the root object to use that all checkboxes are parented to.

///

public Transform radioButtonRoot;

///

/// Can the radio button option be 'none'?

///

public bool optionCanBeNone = false;

///

/// Generic event receiver that will be notified when the state changes.

///

public GameObject eventReceiver;

///

/// Function that will be called on the event receiver when the state changes.

///

public string functionName = "OnActivate";

///

/// Delegate that will be called when the checkbox's state changes. Faster than using 'eventReceiver'.

///

public OnStateChange onStateChange;

// Prior to 1.90 'option' was used to toggle the radio button group functionality

[HideInInspector][SerializeField] bool option = false;

bool mChecked = true;

bool mStarted = false;

Transform mTrans;

///

/// Whether the checkbox is checked.

///

public bool isChecked

{

get { return mChecked; }

set { if (radioButtonRoot == null || value || optionCanBeNone || !mStarted) Set(value); }

}

///

/// Legacy functionality support -- set the radio button root if the 'option' value was 'true'.

///

void Awake ()

{

mTrans = transform;

startsChecked=isPrefsSet();

if (checkSprite != null) checkSprite.alpha = startsChecked ? 1f : 0f;

if (checkSprite != null && startsChecked)

{

Color c = checkSprite.color;

c.a = mChecked ? 1f : 0f;

checkSprite.color=c;

}

if (option)

{

option = false;

if (radioButtonRoot == null) radioButtonRoot = mTrans.parent;

}

}

///

/// Activate the initial state.

///

void Start ()

{

if (eventReceiver == null) eventReceiver = gameObject;

mChecked = !startsChecked;

mStarted = true;

Set(startsChecked);

}

///

/// Check or uncheck on click.

///

void OnClick () { if (enabled) isChecked = !isChecked; }

///

/// Fade out or fade in the checkmark and notify the target of OnChecked event.

///

void Set (bool state)

{

if (!mStarted)

{

mChecked = state;

startsChecked = state;

if (checkSprite != null) checkSprite.alpha = state ? 1f : 0f;

}

else if (mChecked != state)

{

// Uncheck all other checkboxes

if (radioButtonRoot != null && state)

{

UICheckboxPrefs[] cbs = radioButtonRoot.GetComponentsInChildren(true);

for (int i = 0, imax = cbs.Length; i < imax; ++i)

{

UICheckboxPrefs cb = cbs[i];

if (cb != this && cb.radioButtonRoot == radioButtonRoot) cb.Set(false);

}

}

// Remember the state

mChecked = state;

// Tween the color of the checkmark

if (checkSprite != null)

{

Color c = checkSprite.color;

c.a = mChecked ? 1f : 0f;

TweenColor.Begin(checkSprite.gameObject, 0.2f, c);

}

// Notify the delegate

if (onStateChange != null) onStateChange(mChecked);

// Send out the event notification

if (eventReceiver != null && !string.IsNullOrEmpty(functionName))

{

current = this;

eventReceiver.SendMessage(functionName, mChecked, SendMessageOptions.DontRequireReceiver);

}

// Play the checkmark animation

if (checkAnimation != null)

{

ActiveAnimation.Play(checkAnimation, state ? Direction.Forward : Direction.Reverse);

}

checkboxPrefsSet(mChecked);

}

}

public  string  prefsKey="";

public  int  prefsInitInt=0;

public  int  prefsSetInt=1;

void checkboxPrefsSet(bool  isActivity){

if(isActivity)

PlayerPrefs.SetInt(prefsKey,prefsSetInt);

else

PlayerPrefs.SetInt(prefsKey,prefsInitInt);

}

bool  isPrefsSet(){

return ( PlayerPrefs.GetInt(prefsKey,prefsInitInt)==prefsInitInt ? false:true);

}

}