Android在终端本地保存txt文本文件及zip文件

不废话，上代码

public class MyFile {

 private final String TAG = MyFile.class.getCanonicalName();
 
 public static final String MY_DIR = "address";
 public static final String ADDRESS_FILE = "sms_address.txt";
 
 private File myDir;
 private File addressTxt;
 private File zipFile;
 private String zipPath;
 private String zipName;
 
 public MyFile(Context context) {
  myDir = context.getDir(MY_DIR, Context.MODE_WORLD_READABLE);   //在终端的本地项目文件夹创建新的文件夹，路径参考：/data/data/(项目包名)/app_address("app_"是程序自带的)
//  Log.i(TAG, "myApp path:" + myDir.getAbsolutePath());
  addressTxt = new File(myDir, ADDRESS_FILE);
 }
 
 public void saveAddressTxt(ArrayList<String> address) {
  try {
   if (!addressTxt.exists()) {
    addressTxt.createNewFile();
   }
   Log.i(TAG, "txt:" + addressTxt.getPath());                                   //txt文件路径参考：/data/data/(项目包名)/app_address/sms_address.txt

   FileWriter fw = new FileWriter(addressTxt, false);
   int num = address.size();
   for (int i = 0; i < num; i++) {
    fw.write(address.get(i) + "\r\n");
   }
   fw.close();
  
//   FileReader fr = new FileReader(addressTxt);
//   char[] chs = new char[1024];
//   fr.read(chs);
//   fr.close();
//   Log.i(TAG, "addressTxt:" + new String(chs));
  
   saveAddressZip();
  } catch (IOException e) {
   e.printStackTrace();
  }
 }
 
 private void saveAddressZip() {
  int ran = Utils.getRandom();
  zipName = String.format("%d.zip", ran);
  zipPath = String.format(myDir.getPath() + "/%d.zip", ran);
  Log.i(TAG, "zip:" + zipPath);                                                       //zip路径参考：/data/data/(项目包名)/app_address/479575.zip
  byte[] buf = new byte[512];
  try {
   // Create the ZIP file
   ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipPath));

   // Compress the files
   FileInputStream in = new FileInputStream(addressTxt);
   // Add ZIP entry to output stream.
   out.putNextEntry(new ZipEntry(ADDRESS_FILE));

   // Transfer bytes from the file to the ZIP file
   int len;
   while ((len = in.read(buf)) > 0) {
    out.write(buf, 0, len);
   }

   // Complete the entry
   out.closeEntry();
   in.close();

   // Complete the ZIP file
   out.close();
  
   zipFile = new File(zipPath);
  } catch (Exception e) {
   e.printStackTrace();
  }
 }
 
 public String getZipName() {
  return zipName;
 }
 
}