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javaandroidtextview

Is it possible to add a setOnColorChangeListener for a TextView in Android?

For example I would like to print a Toast -->COLOR CHANGED<-- every time I change the textColor of TextView programmatically. Is this possible?

Solution

  • Possibly you add a callback in the same method in which you are setting the new color to your text view.

    Example

    public void setNewTextColor(int color) {
   yourTextView.setTextColor(color);
   yourCallbackMethod();
}

public void yourCallbackMethod() {
   //you can do whatever in this method
}

    Update - You can add your custom textview and define your callback by overriding the setTextColor method inside your custom textview class.

    Official guide to create a custom view in android - https://developer.android.com/training/custom-views/create-view