CODEWITHSUNDEEP
androidrealm
androidAhmed
androidAhmed

Reputation: 237

use realm instance across different activities which using predefined realm database

I add predefined realm database to my app successufully and get the data

copyBundledRealmFile(this.getResources().openRawResource(R.raw.test), 
"test");

    RealmConfiguration config1 = new RealmConfiguration.Builder(this)
            .name("test")
            .schemaVersion(1)
            .migration(new Migration())
            .build();
    realm = Realm.getInstance(config1);
realm.close();

private String copyBundledRealmFile(InputStream inputStream, String outFileName) {
    try {
        File file = new File(this.getFilesDir(), outFileName);
        FileOutputStream outputStream = new FileOutputStream(file);
        byte[] buf = new byte[1024];
        int bytesRead;
        while ((bytesRead = inputStream.read(buf)) > 0) {
            outputStream.write(buf, 0, bytesRead);
        }
        outputStream.close();
        return file.getAbsolutePath();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

the problem how to get instance of the realm when I try using 

       realm = Realm.getDefaultInstance();

give me empty data how can get instance across the app

Upvotes: 1

Views: 431

Answers (1)

Tim
Tim

Reputation: 43314

To be able to get a default, you have to set a default:

RealmConfiguration config1 = new RealmConfiguration.Builder(this)
        .name("test")
        .schemaVersion(1)
        .migration(new Migration())
        .build();

Realm.setDefaultConfiguration(config1); // <-- here

Now you can get it with

Realm.getDefaultInstance();

Upvotes: 5

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