setAccessibilityDelegate and getSelectionStart() like Edittext

[seregin-pro]

Hello.

1. I need to get cursor position when I touched on text like EditText but a didn't find it.

Example for Edittext

EditText edittext = findViewById(R.id.title); int currentCursor = 0;

editText.setAccessibilityDelegate(new View.AccessibilityDelegate() { public void sendAccessibilityEvent(View view, int eventType) { super.sendAccessibilityEvent(view, eventType); if (eventType == AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED) { currentCursor = editText.getSelectionStart(); } } });

2. How can I do like this editText.getSelectionStart() and getSelectionEnd() for RichTextEditor
3. I have dublicates font family, Android 5.1

[seregin-pro]

[dankito]

Hi,

i don't know if i can help you with all your problems.

1) Actually i don't even know what setAccessibilityDelegate() does :). I can only provide the methods of WebView. I think your request (e.g. implementing this manually) is out of scope.

2. Also here i don't think i can help you as the underlying implementation is done with HTML contenteditable and JavaScript. JavaScript's window.getSelection().getRangeAt(0) would provide a start- and end index, but only relative to the element that contains to selected text. I don't think there's a function in JavaScript to get the selection start- and end index in absolute position (do you know any?).

But depending on your use case i may can help you otherwise. What are trying to archive? E. g. getting selected text would be no problem (at least not as plain text).

3. Here i think i found the culprit. As newer Android versions use a different system to store font information, there i take care that each font name only gets added once. But as you said you're using an older Android version, there i use a simple ArrayList to collect all installed fonts. Trying to find an Android 5 phone and fix this at the weekend. Let you know if this solves the issue.

[seregin-pro]

I need to get selection text for rotation screen to save it.

For Edittext I did it like this:

@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); etContentView(R.layout.activity_main);

// get saved data and restore selected text before rotation screen
if (savedInstanceState != null) {
    selectionTextStart = savedInstanceState.getInt("selectionTextStart");
    selectionTextEnd = savedInstanceState.getInt("selectionTextEnd");
}

final EditText editText = findViewById(R.id.editText);

editText.setAccessibilityDelegate(new View.AccessibilityDelegate() {

    // When cursor position changed sendAccessibilityEvent will add new position selected text
    // touch anywhre on text or change position orange text slider
    public void sendAccessibilityEvent(View view, int eventType) {
        super.sendAccessibilityEvent(view, eventType);
        selectionTextStart = editText.getSelectionStart();
        selectionTextStart = editText.getSelectionStart();
    }
});

}

protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState);

outState.putString(Constant.TEXT, text);

outState.putInt("selectionTextStart", selectionTextStart); // put before rotation a screen 
outState.putInt("selectionTextEnd", selectionTextEnd); // put before rotation a screen 

}

I will try to do somethig with WebView

Image 1. I selected text. Image 2. I have this result after rotation screen. I need selected text like Image 1

I hope you understand my English.

[seregin-pro]

[dankito]

Just released version 2.0.15 (should be visible at maximum in two hours).

The font bug should be fixed now. Thanks for reporting it to me!

To restoring the selection:

That's not that easy.

I tried saving selected range with var rangeToRestore = window.getSelection().getRangeAt(0). (See https://gist.github.com/dantaex/543e721be845c18d2f92652c0ebe06aa .)

But restoring with window.getSelection().addRange(rangeToRestore) does not work as after setting html it's a new document and therefore backed up anchor element is not valid anymore.

What could work is using the JavaScript library rangy as suggested here: https://stackoverflow.com/questions/39566611/how-can-i-save-and-restore-selection-range-in-javascript

But as i already spent enough time on this, this is something what you would have to do. If you implement it and give me a pull request, i'd be glad to integrate it.

Cheers.

[seregin-pro]

I just added it in AndroidManifest.xml in my It is work but I go on test it yet. <activity android:name=".EditorActivity" android:configChanges="keyboardHidden|orientation|screenSize"> </activity>