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

Pavel Haluza's answer's approach was great. However, it didn't work, probably because he missed a line setTextSize(TypedValue.COMPLEX_UNIT_PX, maxTextSize);.

Here is my updated version:

public class MyTextView extends AppCompatTextView {

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

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

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

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

private void init() {
    minTextSize = TextViewCompat.getAutoSizeMinTextSize(this);
    maxTextSize = TextViewCompat.getAutoSizeMaxTextSize(this);
    granularity = Math.max(1, TextViewCompat.getAutoSizeStepGranularity(this));
}

@Override
public void setText(CharSequence text, BufferType type) {
    // this method is called on every setText
    disableAutoSizing();
    setTextSize(TypedValue.COMPLEX_UNIT_PX, maxTextSize);
    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);
}}