fix crashing sample app when user is not signed in

yramanchuk · yramanchuk · commit e6e92da5c6a8 · 2016-10-27T11:14:59.000-07:00
diff --git a/samples/objc/FirebaseUI-demo-objc/Samples/Chat/FIRChatViewController.m b/samples/objc/FirebaseUI-demo-objc/Samples/Chat/FIRChatViewController.m
@@ -71,6 +71,11 @@ - (void)viewDidLoad {
   self.tableView.dataSource = self.dataSource;
   self.tableView.delegate = self;
 
+  if (![FIRAuth auth].currentUser) {
+    self.inputTextField.enabled = NO;
+    self.inputTextField.placeholder = @"Please sign in...";
+  }
+
 }
 
 

Original file line number	Diff line number	Diff line change
`@@ -71,6 +71,11 @@ - (void)viewDidLoad {`
`71`	`71`	`self.tableView.dataSource = self.dataSource;`
`72`	`72`	`self.tableView.delegate = self;`
`73`	`73`
	`74`	`+ if (![FIRAuth auth].currentUser) {`
	`75`	`+ self.inputTextField.enabled = NO;`
	`76`	`+ self.inputTextField.placeholder = @"Please sign in...";`
	`77`	`+ }`
	`78`	`+`
`74`	`79`	`}`
`75`	`80`
`76`	`81`