Unity3D 场景切换与持久化简单数据储存（PlayerPrefs类）

1

PlayerPrefs.SetString(

"key"

,

"value"

);

2

string

str = PlayerPrefs.GetString(

"key"

,

"defaule"

));

01

using

UnityEngine;

02

using

System.Collections;

03

04

public

class

Scene0Main : MonoBehaviour {

05

06

//储存数据的显示

07

public

string

testStr;

08

public

string

testInt;

09

public

string

testFloat;

10

11

//GUI皮肤 为上面我们添加的皮肤

12

//在外面用鼠标拖动上为它赋值

13

public

GUISkin fontSkin;

14

//显示的图片

15

public

Texture Imagetexture;

16

17

// Use this for initialization

18

void

Start () {

19

//读取key的值

20

testStr = PlayerPrefs.GetString(

"testStr"

,

"default"

);

21

testInt = PlayerPrefs.GetInt(

"testInt"

, 0).ToString();

22

testFloat = PlayerPrefs.GetFloat(

"testFloat"

, 0).ToString();

23

24

}

25

26

// Update is called once per frame

27

void

Update () {

28

29

}

30

31

void

OnGUI() {

32

33

//将GUI的皮肤设置为我们创建的皮肤

34

GUI.skin = fontSkin;

35

36

//贴上图片

37

GUI.DrawTexture(

new

Rect((Screen.width - Imagetexture.width) >>1, 10, 120, 120), Imagetexture);

38

39

//添加输入框让用户输入信息，这里面我没有捕获异常，因为用户有可能输入一个不合法的数值

40

testStr = GUI.TextField (

new

Rect(10, 200, 200, 50), testStr, 50);

41

testInt = GUI.TextField (

new

Rect(10, 250, 200, 50), testInt, 50);

42

testFloat = GUI.TextField (

new

Rect(10, 300, 200, 50), testFloat, 50);

43

44

//点击按钮保存所有数据

45

if

(GUI.Button(

new

Rect(220, 200, 150, 100),

"commit all"

))

46

{

47

48

PlayerPrefs.SetString(

"testStr"

, testStr);

49

PlayerPrefs.SetInt(

"testInt"

,

int

.Parse(testInt));

50

PlayerPrefs.SetFloat(

"testFloat"

,

float

.Parse(testFloat));

51

//切换场景到scene1

52

Application.LoadLevel(

"scene1"

);

53

}

54

}

55

56

}

01

using

UnityEngine;

02

using

System.Collections;

03

04

public

class

scene1Main : MonoBehaviour {

05

06

public

string

testStr;

07

public

string

testInt;

08

public

string

testFloat;

09

10

public

GUISkin fontSkin;

11

public

Texture Imagetexture;

12

13

// Use this for initialization

14

void

Start () {

15

testStr = PlayerPrefs.GetString(

"testStr"

,

"default"

);

16

testInt = PlayerPrefs.GetInt(

"testInt"

, 0).ToString();

17

testFloat = PlayerPrefs.GetFloat(

"testFloat"

, 0).ToString();

18

19

}

20

21

void

OnGUI() {

22

GUI.skin = fontSkin;

23

24

GUI.DrawTexture(

new

Rect((Screen.width - Imagetexture.width) >>1, 10, 120, 120), Imagetexture);

25

26

//显示label

27

GUI.Label(

new

Rect(10,150,300,50),

"testStr = "

+
testStr);

28

GUI.Label(

new

Rect(10,200,300,50),

"testInt = "

+
testInt);

29

GUI.Label(

new

Rect(10,250,300,50),

"testFloat = "

+
testFloat);

30

31

if

(GUI.Button(

new

Rect(220, 200, 150, 100),

"clean all"

))

32

{

33

//删除所有键值

34

PlayerPrefs.DeleteAll();

35

// 返回场景0

36

Application.LoadLevel(

"scene0"

);

37

}

38

39

if

(GUI.Button(

new

Rect(220, 320, 150, 100),

"only return"

))

40

{

41

// 返回场景0

42

Application.LoadLevel(

"scene0"

);

43

}

44

}

45

}

1

//删除 PlayerPrefs 中某一个key的值

2

PlayerPrefs. DeleteKey (“key”);

3

4

//判断 PlayerPrefs中是否存在这个key

5

bool

b = PlayerPrefs.HasKey(“key”);