Error handling in AddAccountActivity in TestDPC

Change-Id: I876b7fe23a3fb8538effd8394769b3d96a808f6d
Bug: 29382125

Author: tony-mak

app/src/main/java/com/afwsamples/testdpc/AddAccountActivity.java

@@ -31,6 +31,7 @@
 import android.view.View;
 import android.widget.EditText;
 import android.widget.RadioGroup;
+import android.widget.Toast;
 
 import com.android.setupwizardlib.SetupWizardLayout;
 import com.android.setupwizardlib.view.NavigationBar;
@@ -58,6 +59,8 @@ protected void onCreate(Bundle savedInstanceState) {
         setContentView(R.layout.activity_add_account);
         SetupWizardLayout layout = (SetupWizardLayout) findViewById(R.id.setup_wizard_layout);
         layout.getNavigationBar().setNavigationBarListener(this);
+        NavigationBar navigationBar = layout.getNavigationBar();
+        navigationBar.getBackButton().setEnabled(false);
 
         Bundle extras = getIntent().getExtras();
         if (extras != null) {
@@ -92,6 +95,9 @@ public void run(AccountManagerFuture<Bundle> accountManagerFuture) {
                         } catch (OperationCanceledException | AuthenticatorException
                                 | IOException e) {
                             Log.e(TAG, "addAccount - failed", e);
+                            Toast.makeText(AddAccountActivity.this,
+                                    R.string.fail_to_add_account, Toast.LENGTH_LONG).show();
+                            return;
                         }
                         Log.d(TAG, "addAccount - isAccountAdded: " + isAccountAdded
                                 + ", accountNameAdded: " + accountNameAdded);
@@ -134,7 +140,5 @@ public void onClick(DialogInterface dialogInterface, int i) {
     }
 
     @Override
-    public void onNavigateBack() {
-        onBackPressed();
-    }
+    public void onNavigateBack() {}
 }

app/src/main/res/values/strings.xml

@@ -50,6 +50,7 @@
     <string name="add_account_with_name">Add account with name</string>
     <string name="add_account_skip">Skip</string>
     <string name="add_account_dialog_title">Account name:</string>
+    <string name="fail_to_add_account">Fail to add account</string>
     <string name="icon">Icon</string>
     <string name="manage_apps">Manage applications</string>
     <string name="reset">Reset</string>