Autosizing TextViews in RecyclerView causes text size to decrease

Question

I am trying to use Autosizing TextViews in a RecyclerView, but when I scroll a few times the text gets so small that it\'s obviously not working properly.

Example of my

Answer 1

I packaged Michael Celey's answer into a class. The parameters app:autoSizeMinTextSize, app:autoSizeMaxTextSize, app:autoSizeTextType are taken from xml.

public class AutosizingTextView extends AppCompatTextView {

    private int minTextSize;
    private int maxTextSize;
    private int granularity;

    public AutosizingTextView(Context context) {
        super(context);
        init();
    }

    public AutosizingTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public AutosizingTextView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    private void init() {
        minTextSize = TextViewCompat.getAutoSizeMinTextSize(this);
        maxTextSize = TextViewCompat.getAutoSizeMaxTextSize(this);
        granularity = TextViewCompat.getAutoSizeStepGranularity(this);
    }

    @Override
    public void setText(CharSequence text, BufferType type) {
        // this method is called on every setText
        disableAutosizing();
        super.setText(text, type);
        post(this::enableAutosizing); // enable after the view is laid out and measured at max text size
    }

    private void disableAutosizing() {
        TextViewCompat.setAutoSizeTextTypeWithDefaults(this, TextViewCompat.AUTO_SIZE_TEXT_TYPE_NONE);
    }

    private void enableAutosizing() {
        TextViewCompat.setAutoSizeTextTypeUniformWithConfiguration(this,
                minTextSize, maxTextSize, granularity, TypedValue.COMPLEX_UNIT_PX);
    }
}```