using the system back button from flutter driver

Question

How can I use the system back button in an integration test?

So I'm using flutter and am writing integration tests, in most circumstances I can use the AppBar navigation, finding it by tool tip looks like this :

driver.tap(find.byTooltip('Back'));

But one of my tests opens a web page, after this opens I need to carry on with my tests which means I need to press the system back button, is this possible?

many thanks

Miguel Beltran · Accepted Answer · 2020-03-09T09:27:15.057

9

If you have adb installed on your machine, you can run a command to perform the backpress using a keyevent:

import 'dart:io';

await Process.run(
  'adb', 
  <String>['shell', 'input', 'keyevent', 'KEYCODE_BACK'], 
  runInShell: true,
);

edited Mar 09 '20 at 09:27

answered Mar 09 '20 at 09:09

Miguel Beltran

2,132
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1

what about iPhones? how can we press the home button etc.. programmatically – Abhishek Ghaskata Dec 10 '20 at 08:20
1

iPhone's home button is not a back button, it directs the user to the device home. If you want to test the equivalent of a backpress on iOS you may want to try a drag from right to left. – Miguel Beltran Dec 11 '20 at 10:13
is there any way to press the Home screen on iPhone programmatically? – Abhishek Ghaskata Dec 11 '20 at 10:42

score 4 · Answer 2 · answered Jan 27 '20 at 13:27

4

Maybe this can help you

 await device.shellExec('input', <String>['keyevent', 'KEYCODE_BACK']);

Found in one of the official flutter driver tests link

answered Jan 27 '20 at 13:27

David Beljan

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2

2

Seems that the device.shellExec depends on the flutter_devicelab which is only available within the framework – Miguel Beltran Mar 09 '20 at 08:16

score -3 · Answer 3 · answered Mar 02 '19 at 18:06

-3

Check out this link. In short, you'll need to use WillPopScope class that handles device back button with callbacks.

answered Mar 02 '19 at 18:06

Darshan

10,550
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not applicable from flutter driver, im aware of willPopScope and its usage but thank you – martinseal1987 Mar 02 '19 at 21:44

using the system back button from flutter driver

3 Answers3