SharedPreference放在data/data/包名/下面。
是占用内存得，如果保存大量的数据，需要放到sdcard下去，所以SharedPreferences不方便，直接用Properties类的方式比较好。
可以把文件当作字符串传入，能访问获取正确值就好！```
package com.nil.cache;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
public class PropertiesConfig extends Properties {
String propertyPath="";
private PropertiesConfig(String path) {
propertyPath=path;
};
public static PropertiesConfig getInstance(String path) {
{
File file = new File(path);
if (file.exists()) {
try {
file.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
}
PropertiesConfig pro = new PropertiesConfig(path);
try {
InputStream is = new FileInputStream(file);
pro.load(is);
is.close();
} catch (Exception e) {
e.printStackTrace();
}
return pro;
}
}
@Override
public Object setProperty(String key, String value) {
super.setProperty(key, value);
try {
this.store(new FileOutputStream(this.propertyPath),
"utf-8");
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return value;
}
public Object put(String key, String value) {
super.put(key, value);
try {
this.store(new FileOutputStream(this.propertyPath),
"utf-8");
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return value;
}
}
嘿嘿！怎么用呢？
大概如下调用即可：
[java]
PropertiesConfig.getInstance("/sdcard/client_config.xml").setProperty("187", "name");
PropertiesConfig.getInstance("/sdcard/client_config.xml").get("187");
