Android写文件到SD卡

选择字号： 超大 标准 发布时间：2015-12-31 10:58:13 | 作者：admin | 0个评论 | 人浏览

 1.需要引用的空间：

import android.content.Context;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

2.相关的代码

  private void writeFileToSD() {
     String sdStatus = Environment.getExternalStorageState();
     if(!sdStatus.equals(Environment.MEDIA_MOUNTED)) {
      Log.d("TestFile", "SD card is not avaiable/writeable right now.");
      return;
     }
     try {
      String pathName="/sdcard/";
      String fileName="config.txt";
      File path = new File(pathName);
      File file = new File(pathName + fileName);
      if( !path.exists()) {
       Log.d("TestFile", "Create the path:" + pathName);
       path.mkdir();
      }
      if( !file.exists()) {
       Log.d("TestFile", "Create the file:" + fileName);
       file.createNewFile();
      }
      FileOutputStream stream = new FileOutputStream(file);
      String s = "AudioLocalIP=192.168.0.231:8005\r\nAudioRemoteIP=192.168.0.230:8000\r\nAudioCodecName=\"G.711 A-law\"";
      byte[] buf = s.getBytes();
      stream.write(buf);      
      stream.close();
      
     } catch(Exception e) {
      Log.e("TestFile", "Error on writeFilToSD.");
      e.printStackTrace();
     }
    }

   
    private void writeFile() {
     try {
      FileOutputStream stream = openFileOutput("config.txt", Context.MODE_WORLD_WRITEABLE);
      String s = "AudioLocalIP=192.168.0.230:8000\r\nAudioRemoteIP=192.168.0.231:8000\r\nAudioCodecName=\"G.711 A-law\"";
      byte[] buf = s.getBytes();
      stream.write(buf);
      stream.close();
      Log.d("TestFile", s);
     }
     catch (FileNotFoundException e) {
      Log.d("TestFile", "File not found.");
     }
     catch (IOException e) {
      Log.d("TestFile", "File write error.");
     }
    }

3.需要的权限

 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

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