###新建一个SpUtil工具类
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
| /**
* Created by xpf on 2017/03/25 :)
* Function: sp存储的工具类
*/
public class SpUtil {
private static final String ANLEKE = "anleke";
private SpUtil() {
}
private static SpUtil instace = new SpUtil();
private static SharedPreferences mSp = null;
public static SpUtil getInstace() {
if (mSp == null) {
mSp = MyApplication.getContext().getSharedPreferences(ANLEKE, Context.MODE_PRIVATE);
}
return instace;
}
/**
* 保存数据
*
* @param key 键
* @param value 值
*/
public void save(String key, Object value) {
if (value instanceof String) {
mSp.edit().putString(key, (String) value).commit();
} else if (value instanceof Boolean) {
mSp.edit().putBoolean(key, (Boolean) value).commit();
} else if (value instanceof Integer) {
mSp.edit().putInt(key, (Integer) value).commit();
}
}
// 读取String类型数据
public String getString(String key, String defValue) {
return mSp.getString(key, defValue);
}
// 读取boolean类型数据
public boolean getBoolean(String key, boolean defValue) {
return mSp.getBoolean(key, defValue);
}
// 读取int类型数据
public int getInt(String key, int defValue) {
return mSp.getInt(key, defValue);
}
}
|
###注：在MyApplication中获取上下文
1
2
3
4
5
6
7
8
9
10
11
12
| private static Context mContext;
@Override
public void onCreate() {
super.onCreate();
mContext = this;
}
// 获取全局上下文
public static Context getContext() {
return mContext;
}
|