WIP activity for custodian to return a shard

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/recover/CustodianSendShardActivity.java

@@ -0,0 +1,70 @@
+package org.briarproject.briar.android.socialbackup.recover;
+
+import android.os.Bundle;
+import android.widget.Toast;
+
+import org.briarproject.bramble.api.FormatException;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.activity.BriarActivity;
+import org.briarproject.briar.android.contact.add.nearby.AddNearbyContactPermissionManager;
+import org.briarproject.briar.android.socialbackup.OwnerRecoveryModeMainFragment;
+import org.briarproject.briar.api.socialbackup.ReturnShardPayload;
+
+import java.util.logging.Logger;
+
+import javax.annotation.Nullable;
+import javax.inject.Inject;
+
+import androidx.lifecycle.ViewModelProvider;
+
+import static java.util.logging.Logger.getLogger;
+import static org.briarproject.briar.android.socialbackup.CustodianHelpRecoverActivity.RETURN_SHARD_PAYLOAD;
+
+public class CustodianSendShardActivity extends BriarActivity {
+	private CustodianSendShardViewModel viewModel;
+
+	private static final Logger LOG =
+			getLogger(CustodianSendShardActivity.class.getName());
+
+	@Inject
+	ViewModelProvider.Factory viewModelFactory;
+
+	@Override
+	public void injectActivity(ActivityComponent component) {
+		component.inject(this);
+		viewModel = new ViewModelProvider(this, viewModelFactory)
+				.get(CustodianSendViewModel.class);
+	}
+
+	@Override
+	public void onCreate(@Nullable Bundle state) {
+		super.onCreate(state);
+
+		byte[] returnShardPayloadBytes =
+				getIntent().getByteArrayExtra(RETURN_SHARD_PAYLOAD);
+		try {
+			ReturnShardPayload returnShardPayload = parseReturnShardPayload(
+					clientHelper.toList(returnShardPayloadBytes));
+//			viewModel.setReturnShardPayload(returnShardPayload);
+		} catch (FormatException e) {
+			Toast.makeText(this,
+					"Error reading social backup",
+					Toast.LENGTH_SHORT).show();
+			finish();
+		}
+		setContentView(R.layout.activity_fragment_container);
+		if (state == null) {
+			showInitialFragment(new OwnerRecoveryModeExplainerFragment());
+		}
+		viewModel.getCheckPermissions().observeEvent(this, check ->
+				permissionManager.checkPermissions());
+		viewModel.getRequestBluetoothDiscoverable().observeEvent(this, r ->
+				requestBluetoothDiscoverable()); // never false
+		viewModel.getShowQrCodeFragment().observeEvent(this, show -> {
+			if (show) showQrCodeFragment();
+		});
+		viewModel.getState()
+				.observe(this, this::onReturnShardStateChanged);
+	}
+}