package com.android.demo;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import android.content.Context;

public class CopyFileFromAssets {
/**
*
* @param myContext
* @param ASSETS_NAME 要复制的文件名
* @param savePath 要保存的路径
* @param saveName 复制后的文件名
* testCopy(Context context)是一个测试例子。
*/

public static void copy(Context myContext, String ASSETS_NAME,
String savePath, String saveName) {
String filename = savePath + "/" + saveName;

File dir = new File(savePath);
// 如果目录不中存在，创建这个目录
if (!dir.exists())
dir.mkdir();
try {
if (!(new File(filename)).exists()) {
InputStream is = myContext.getResources().getAssets()
.open(ASSETS_NAME);
FileOutputStream fos = new FileOutputStream(filename);
byte[] buffer = new byte[7168];
int count = 0;
while ((count = is.read(buffer)) > 0) {
fos.write(buffer, 0, count);
}
fos.close();
is.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
public void testCopy(Context context) {
String path=context.getFilesDir().getAbsolutePath();
String name="test.txt";
CopyFileFromAssets.copy(context, name, path, name);
}
}