[TIMOB-26183] Android: TextField 'change' event does not get fired if we change TextField.value from a Button 'click’.

GitHub Issue	n/a
Type	Bug
Priority	None
Status	Closed
Resolution	Invalid
Resolution Date	2018-07-09T22:19:18.000+0000
Affected Version/s	Release 7.1.1
Fix Version/s	n/a
Components	Android
Labels	n/a
Reporter	Mostafizur Rahman
Assignee	Mostafizur Rahman
Created	2018-07-05T10:13:48.000+0000
Updated	2018-07-09T22:19:18.000+0000

Description

*Issue Description:* Textfield *’change'* event does not get fired if you change TextField.value from a Button 'click' callback. If we manually change textfield value then the change event fires. *Test Environment:*

Appcelerator Command-Line Interface, version 7.0.4
Copyright (c) 2014-2018, Appcelerator, Inc.  All Rights Reserved.

Operating System
  Name                        = Mac OS X
  Version                     = 10.13.5
  Architecture                = 64bit
  # CPUs                      = 4
  Memory                      = 8.0GB

Node.js
  Node.js Version             = 8.9.1
  npm Version                 = 5.5.1

Appcelerator CLI
  Installer                   = 4.2.13
  Core Package                = 7.0.4

Titanium CLI
  CLI Version                 = 5.1.1
  node-appc Version           = 0.2.44
TI SDK   7.1.1.GA
Device details: Huawei Y9 2018 (android 8)

*Steps to reproduce:* 1. Run the test code 2. Click “Change text” button. 3. Observe that the log does not show the change event 4. Now try to change textfield value manually, observe the log and check that the change event fires successfully *Test code:*

var win = Ti.UI.createWindow({
   
});
var txt = Ti.UI.createTextField({
	enabled: true,
	hintText: 'change me',
	top: 10
});
 
txt.addEventListener('change', function(e) {
	Ti.API.info('text changed');
});
 
var btn = Ti.UI.createButton({
	bottom: 0,
	title: 'Change Text'
});
 
btn.addEventListener('click', function(e) {
	txt.value = 'Yay, text changed!';
});

win.add(txt);
win.add(btn);
win.open();

*Test Result:* *Console logs:*

INFO]  text changed
[INFO]  text changed
[INFO]  text changed
[INFO]  text changed
[INFO]  text changed
[WARN]  InputMethodManager: startInputReason = 8
[WARN]  IInputConnectionWrapper: getExtractedText on inactive InputConnection
[WARN]  IInputConnectionWrapper: getTextBeforeCursor on inactive InputConnection
[INFO]  HwSecImmHelper: mSecurityInputMethodService is null
[WARN]  IInputConnectionWrapper: getExtractedText on inactive InputConnection
[WARN]  IInputConnectionWrapper: getTextBeforeCursor on inactive InputConnection
[WARN]  libEGL: EGLNativeWindowType 0x74aa060010 disconnect failed
[INFO]  APSAnalyticsService: Analytics Service Started
[INFO]  APSAnalyticsService: Stopping Analytics Service

Comments

Joshua Quick 2018-07-09

This is not a bug. This is the intended behavior. Please see ticket: [TIMOB-17210] Before Titanium 7.1.0, this was the behavior on Android, but not the behavior on iOS or Windows. The community expected Android to match iOS' behavior where changing a TextField/TextArea's text programmatically would NOT fire a "change" event. Android was modified to match this behavior in 7.1.0. If your app requires the old behavior, then you can fire the "change" event manually from button "click" event handler as follows... textField.value = "Hello World"; textField.fireEvent("change", { value: textField.value, });

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