Bug 307443

Created attachment 74218 [details]
Android input context test patch

Hi

Thanks for your report, I found some problems on the emulator but sadly I don't have none of your devices you mention on this bug report to check if it works, so, I'll need your help to check if the attached patch is fixing your problems.

On emulator I test it with the following qml file:

import QtQuick 1.1

Rectangle {
    id: rectangle1
    width: 360
    height: 360
    Text {
        id: text_id
        text: qsTr("Hello World")
        anchors.centerIn: parent
    }
    TextEdit {
        id: text_edit1
        width: 340
        height: 20
        text: qsTr("text edit")
        anchors.top: text_id.bottom
        anchors.topMargin: 0
        onTextChanged: {
            text_id.text=text
        }
    }
}

I made the change to the file and am trying to rebuild the source, but when I run the command 
"./android/androidconfigbuild.sh -n --directory of ndk-- -q 1 -d 1" I get the error:
"fatal error: qclass_lib_map.h: No such file or directory /n compilation terminated."

what should I do to correct this error?

Please try the followings steps:
- clone git://anongit.kde.org/android-qt.git
- switch to beta2 branch
- apply the patch attached to this bug
- edit ./android/androidconfigbuild.sh and change NDK_ROOT var if needed, make sure it's points to the NDK shipped with Necessitas SDK, not the official one !
- make sure android SDK tools are in your PATH and you have at leats 4 7 8 14 API level SDKs installed.
- run ./android/androidconfigbuild.sh -q1 -d1
- add this build to QtCreator.
- check "Deploy local qt libs" and run your application.

*** Bug 307748 has been marked as a duplicate of this bug. ***

Hi, my collegue has tried to test this patch, but wasn't able to get a simple app up and running with deployed libs. Please see https://groups.google.com/forum/#!searchin/android-qt/dagvegar/android-qt/vPo-8K90Omk/TeZ1fBa8HfEJ for his error messages.

(In reply to comment #6)
Make sure you have enough free space on your device/emulator.

My collegue has tested the proposed patch with the following findings: 

1. Testcase from [1], QLineEdit widgets. The proposed patch had no effect, and the text entry bug still exists. That issue will then be reopened.

2. QML testcase as proposed in comment #2. The patch gave better user input, but we still have the problem that "onTextChanged" is not fired until the user presses "space", "done" or the suggested word on the keyboard. This means that if a user does not end his user input with one of the three mentioned activators, the last word will never be picked up by the Qt classes (thus never further stored in the app).

[1] https://bugs.kde.org/show_bug.cgi?id=307748

I can confirm the exact same behavior on my Galaxy Tab 2.0 with latest necessitas and TextInput.

My TextInput's are created dynamic using something like
var c = Qt.createComponent("TextField.qml") // contains a TextField
var e = c.createObject(parent, {})

All proper displayed, works as expected on desktop but on the device when I switch focus to one of the TextField's and input text then no onTextChanged is emitted till I add a "space".

Debug output is:
D/Qt      (17401): resetSoftwareKeyboard 
D/Qt      (17401): showSoftwareKeyboard 
D/Qt      (17401): TextField.onActiveFocusChanged
D/Qt      (17401): TextField.onFocusChanged
D/Qt      (17401): TextField.onCursorPositionChanged focus=true
W/IInputConnectionWrapper(17401): getTextBeforeCursor on inactive InputConnection
W/IInputConnectionWrapper(17401): getTextAfterCursor on inactive InputConnection
W/IInputConnectionWrapper(17401): getTextBeforeCursor on inactive InputConnection
W/IInputConnectionWrapper(17401): getTextAfterCursor on inactive InputConnection
I/Qt JAVA (17401): surfaceChanged: 600,605,600,605
D/Qt      (17401): setDisplayMetrics 
D/Qt      (17401): setDisplayMetrics done 
D/Qt      (17401): setDesktopSize 
D/Qt      (17401): setDesktopSize done 
D/dalvikvm(17401): GC_FOR_ALLOC freed 142K, 9% free 3581K/3924K, paused 44ms, total 49ms
I/dalvikvm-heap(17401): Grow heap (frag case) to 4.362MB for 726016-byte allocation
D/dalvikvm(17401): GC_FOR_ALLOC freed 0K, 8% free 4290K/4636K, paused 34ms, total 34ms
D/dalvikvm(17401): GC_CONCURRENT freed 1115K, 32% free 3176K/4636K, paused 3ms+2ms, total 45ms

D/Qt      (23622): showSoftwareKeyboard 

[ Nothing more displayed whatever I add to the TextInput but when I add a "space" following is printed]

D/Qt      (23622): TextField.onCursorPositionChangedtrue focus=true
D/Qt      (23622): TextField.onTextChanged text="a "
D/Qt      (23622): TextField.textChanged text="a "
D/Qt      (23622): TextField.onDisplayTextChanged
D/Qt      (23622): TextField.onCursorPositionChanged focus=true
D/Qt      (23622): TextField.onTextChanged text="a "
D/Qt      (23622): TextField.textChanged text="a "
D/Qt      (23622): TextField.onDisplayTextChanged

This is with a TextInput. When I replace the TextInput with a TextEdit then I earn onTextChanged but text is always empty means does NOT contain what I actually added. But once I pressed the space-key once every following onTextChanged called contains all tghe proper/correct text.

Debug output:

I focus the TextField:
D/Qt      (25933): resetSoftwareKeyboard 
D/Qt      (25933): showSoftwareKeyboard 
D/Qt      (25933): TextEdit.onActiveFocusChanged
D/Qt      (25933): TextEdit.onFocusChanged
W/IInputConnectionWrapper(25933): getTextBeforeCursor on inactive InputConnection
W/IInputConnectionWrapper(25933): getTextAfterCursor on inactive InputConnection
D/Qt      (25933): TextEdit.onTextChanged text=""
D/Qt      (25933): TextEdit.textChanged
D/Qt      (25933): resetSoftwareKeyboard 
D/Qt      (25933): resetSoftwareKeyboard 
I/Qt JAVA (25933): surfaceChanged: 600,605,600,605
D/Qt      (25933): setDisplayMetrics 
D/Qt      (25933): setDisplayMetrics done 
D/Qt      (25933): setDesktopSize 
D/Qt      (25933): setDesktopSize done 
D/dalvikvm(25933): GC_FOR_ALLOC freed 40K, 10% free 3582K/3944K, paused 23ms, total 23ms
I/dalvikvm-heap(25933): Grow heap (frag case) to 4.363MB for 726016-byte allocation
D/dalvikvm(25933): GC_FOR_ALLOC freed 0K, 8% free 4291K/4656K, paused 19ms, total 19ms
W/IInputConnectionWrapper(25933): getTextBeforeCursor on inactive InputConnection
D/dalvikvm(25933): GC_CONCURRENT freed 1115K, 32% free 3178K/4656K, paused 2ms+2ms, total 24ms
W/IInputConnectionWrapper(25933): getTextAfterCursor on inactive InputConnection
D/Qt      (25933): TextEdit.onTextChanged text=""
D/Qt      (25933): TextEdit.textChanged
W/IInputConnectionWrapper(25933): getTextBeforeCursor on inactive InputConnection
W/IInputConnectionWrapper(25933): getTextAfterCursor on inactive InputConnection
D/Qt      (25933): TextEdit.onTextChanged text=""
D/Qt      (25933): TextEdit.textChanged
D/Qt      (25933): TextEdit.onTextChanged text=""
D/Qt      (25933): TextEdit.textChanged

I add a "a" character:
D/Qt      (25933): TextEdit.onTextChanged text=""
D/Qt      (25933): TextEdit.textChanged

I add a space character:
D/Qt      (25933): TextEdit.onCursorPositionChanged focus=true
D/Qt      (25933): TextEdit.onTextChanged text="a "
D/Qt      (25933): TextEdit.textChanged text="a "
D/Qt      (25933): TextEdit.onCursorPositionChanged focus=true
D/Qt      (25933): TextEdit.onTextChanged text="a "
D/Qt      (25933): TextEdit.textChanged text="a "

Reopen, will try to debug that cazse more since its the last remaining show-stopper for an application I wrote :) Please let me know what more/new/additional informations are needed. I am subscribed to the report and so will receive mails + I am highly motivated to progress on that issue :)

and I can confirm that following proper fixes the problem:

TextInput {
    inputMethodHints: Qt.ImhNoPredictiveText
}

TextEdit {
    inputMethodHints: Qt.ImhNoPredictiveText
}

May I suggest to make that standard for TextInput/TextEdit to prevent others losing hours over hours till they run into this bugreport? Thanks in advance and fantastic work BogDan!

Hello! Sorry to be the bearer of bad news, but this project has been unmaintained for many years and I will be closing this bug.