copy images from assest to sd card on install android application

Question

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

score 2 · Accepted Answer · answered Aug 29 '12 at 08:18

2

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" />

answered Aug 29 '12 at 08:18

Aerrow

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it your application's assets folder. – Aerrow Aug 29 '12 at 08:47
how can i check if this is the first time the user run the application as i don wanna every time the copy happened ?! – omnia Mm Aug 29 '12 at 08:59
check your sdCard folder length, if it's empty means you will copy otherwise you won't – Aerrow Aug 29 '12 at 09:06
out = new FileOutputStream("/sdcard/" + filename); ,, an error occured "the file is not exist" – omnia Mm Aug 29 '12 at 10:02
1

First of all create the directory to move the images. then user out = new FileOutputStream("/sdcard/Your_Folder" + filename); – Aerrow Aug 29 '12 at 10:09

score 0 · Answer 2 · answered Feb 03 '14 at 22:12

So I needed to do something similar except for all files, and on boot for an AOSP package. Here is a link to the package if anyone is interested (see AssetCopyReceiver.java).

https://github.com/Paradopolis/AssetCopier/blob/master/src/com/paradopolis/assetcopier/AssetCopyReceiver.java

This will copy all files under sdcard to their respective locations and it should also work with subdirectories. It works as an on boot receiver which won't work for a regular app, so it will need to be modified but the code is the same. It is heavily based on the first answer as I started from there, and corrected some issues that I found as I needed to extend it.

copy images from assest to sd card on install android application

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