How to get the expansion file URL?

Question

How to get the expansion file URL from google play to download the file if the user has deleted the expansion file.

Answer 1

You must use the LicenseChecker to get the expansion file URL, Name or Size.

  private LicenseChecker mChecker;
  private String expFileUrl;

On the MainActivity use this Methode:

 private void setLicenseChecker() {
        String deviceId = android.provider.Settings.Secure.getString(this.getContentResolver(),
                android.provider.Settings.Secure.ANDROID_ID);

        final APKExpansionPolicy aep = new APKExpansionPolicy(this,
                new AESObfuscator(SALT, this.getPackageName(), deviceId));

        // reset our policy back to the start of the world to force a
        // re-check
        aep.resetPolicy();

        // let's try and get the OBB file from LVL first
        // Construct the LicenseChecker with a Policy.
        mChecker = new LicenseChecker(this, aep,BASE64_PUBLIC_KEY);

        mChecker.checkAccess(new LicenseCheckerCallback() {
            @Override
            public void allow(int reason) {
                expFileUrl=aep.getExpansionURL(0);
                Log.d(LOG_TAG, "Obb name:"+aep.getExpansionFileName(0));
                Log.d(LOG_TAG, "Obb size:"+aep.getExpansionFileSize(0));
                Log.d(LOG_TAG, "Obb Url:"+aep.getExpansionURL(0));
                Log.d(LOG_TAG, "Obb Count:"+aep.getExpansionURLCount());
            }
            @Override
            public void dontAllow(int reason) {
            }
            @Override
            public void applicationError(int errorCode) {
            }
        });
    }

 @Override
    protected void onDestroy() {
        super.onDestroy();
        mChecker.onDestroy();
    }