Java tutorial
//package com.java2s; //License from project: Open Source License import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import android.content.Context; public class Main { public static void imgCacheWrite(Context context, String cacheImgFileName, String imgBase64Str) { File cacheImgFile = new File(context.getFilesDir() + "/" + cacheImgFileName); if (cacheImgFile.exists()) { cacheImgFile.delete(); } FileOutputStream fos; try { fos = context.openFileOutput(cacheImgFileName, Context.MODE_PRIVATE); fos.write(imgBase64Str.getBytes("utf-8")); fos.flush(); fos.close(); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }