CODEWITHSUNDEEP
androidlistenerevent-listener
Geek
Geek

Reputation: 8320

Stop listening for more listener events

I listen to onGlobalLayoutListener as shown in below code. I want to listen it only once. Once onGlobalLayout() is called I want to stop listening to it.

I tried using removeOnGlobalLayoutListener() method but that gives warning that call required API level 16 (current min is 14).

I also tried using removeGlobalOnLayoutListener. But it is deprecated.

Code :

searchWebView.getViewTreeObserver().addOnGlobalLayoutListener(
                        new OnGlobalLayoutListener() {
    @Override
    public void onGlobalLayout() {

        // Do something
        // Remove listener
    }
});

How to remove onGlobalLayoutListener?

Edit :

enter image description here

Upvotes: 2

Views: 6014

Answers (1)

Vikram
Vikram

Reputation: 51571

You can remove the OnGlobalLayoutListener using the following code. There will still be a strikethrough on removeGlobalOnLayoutListener(), which has been deprecated. But, the lint warning will be taken care of by using the annotations.

@SuppressWarnings("deprecation")
@SuppressLint("NewApi")
searchWebView.getViewTreeObserver().addOnGlobalLayoutListener(
                    new OnGlobalLayoutListener() {
    @Override
    public void onGlobalLayout() {

        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1) {
                searchWebView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
            } else {
                searchWebView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
            }

    }
});

Upvotes: 7

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