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androidandroid-sdcardandroid-imageandroid-assets

copy images from assest to sd card on install android application


i have some images should be displayed in the Application, the Q. is how to copy the images i am putting in the assets folder in the code to a folder under the SC card of the user on install the application on the phone


Solution

  • Try with this,

    private void copyAssets() {
        AssetManager assetManager = getAssets();
        String[] files = null;
        try {
            files = assetManager.list("");
        } catch (IOException e) {
            Log.e("tag", e.getMessage());
        }
        for(String filename : files) {
            InputStream in = null;
            OutputStream out = null;
            try {
              in = assetManager.open(filename);
              out = new FileOutputStream("/sdcard/" + filename);
              copyFile(in, out);
              in.close();
              in = null;
              out.flush();
              out.close();
              out = null;
            } catch(Exception e) {
                Log.e("tag", e.getMessage());
            }       
        }
    }
    private void copyFile(InputStream in, OutputStream out) throws IOException {
        byte[] buffer = new byte[1024];
        int read;
        while((read = in.read(buffer)) != -1){
          out.write(buffer, 0, read);
        }
    }
    

    Don't forget to add this permission in your manifiest

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