Java tutorial
//package com.java2s; import android.graphics.*; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; public class Main { public static void saveBitmap(String dirpath, String filename, Bitmap bitmap, boolean isDelete) { File dir = new File(dirpath); if (!dir.exists()) { dir.mkdirs(); } File file = new File(dirpath, filename); if (isDelete) { if (file.exists()) { file.delete(); } } if (!file.exists()) { try { file.createNewFile(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } FileOutputStream out = null; try { out = new FileOutputStream(file); if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, out)) { out.flush(); } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { if (out != null) { try { out.close(); } catch (IOException e) { e.printStackTrace(); } } } } }