Marquee Title In Toolbar / Actionbar In Android With Lollipop Sdk?

I've tried several different approaches, including the one found here (which in turn led me to trying both of the top answers to this question), as well as using reflection to get

Solution 1:

Get the title TextView object from declared field name of TextView in Toolbar class and Marquee title of toolbar.

TextViewtitleTextView=null;

    try {
        Fieldf= toolbar.getClass().getDeclaredField("mTitleTextView");
        f.setAccessible(true);
        titleTextView = (TextView) f.get(toolbar);

        titleTextView.setEllipsize(TruncateAt.MARQUEE);
        titleTextView.setFocusable(true);
        titleTextView.setFocusableInTouchMode(true);
        titleTextView.requestFocus();
        titleTextView.setSingleLine(true);
        titleTextView.setSelected(true);
        titleTextView.setMarqueeRepeatLimit(-1);

    } catch (NoSuchFieldException e) {
    } catch (IllegalAccessException e) {
    }

Solution 2:

Try to put a TextView inside the Toolbar:

<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="?attr/actionBarSize" >

    <TextView
        android:id="@+id/toolbar_title"
        android:text="This will run the marquee animation forever"
        android:textSize="@dimen/abc_text_size_title_material_toolbar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ellipsize="marquee"
        android:marqueeRepeatLimit="marquee_forever"
        android:scrollHorizontally="true"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:singleLine="true" />

</android.support.v7.widget.Toolbar>

And then, use the Toolbar as an ActionBar and clear/disable its title:

Toolbartoolbar= (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setTitle(null); // or, setDisplayShowTitleEnabled(false)

Solution 3:

Kotlin solution to set MARQUEE for both Title and Subtitle TextViews (it just finds all TextViews inside Toolbar):

findViewById<Toolbar>(R.id.action_bar)?.let {
    setToolbarTextViewsMarquee(it)
}

funsetToolbarTextViewsMarquee(toolbar: Toolbar) {
    for (child in toolbar.children) {
        if (child is TextView) {
            setMarquee(child)
        }
    }
}

funsetMarquee(textView: TextView) {
    textView.ellipsize = TextUtils.TruncateAt.MARQUEE
    textView.isSelected = true
    textView.marqueeRepeatLimit = -1
}

So it's not necessary to add Toolbar view (android.support.v7.widget.Toolbar or androidx.appcompat.widget.Toolbar) to xml layout

You can use the default Toolbar which AppCompat theme automatically adds:

<stylename="AppTheme"parent="Theme.AppCompat.Light.DarkActionBar">

Solution 4:

Figured it out eventually, it was because, from what I understand, TextViews that are set marquee need to be selected before they will actually start marqueeing. I updated my MarqueeToolbar class that I posted in the question, which can be found in this Gist: https://gist.github.com/InsanityOnABun/95c0757f2f527cc50e39

Solution 5:

create custom toolbar and apply title and subtitle marquee effect:

publicclassMarqueeToolbarextendsToolbar {

TextView title, subTitle;

publicMarqueeToolbar(Context context) {
    super(context);
}

publicMarqueeToolbar(Context context, AttributeSet attrs) {
    super(context, attrs);
}

publicMarqueeToolbar(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
}

@OverridepublicvoidsetTitle(CharSequence title) {

        reflected = reflectTitle();

    super.setTitle(title);
    selectTitle();
}

@OverridepublicvoidsetTitle(int resId) {
    if (!reflected) {
        reflected = reflectTitle();
    }
    super.setTitle(resId);
    selectTitle();
}

booleanreflected=false;
privatebooleanreflectTitle() {
    try {
        Fieldfield= Toolbar.class.getDeclaredField("mTitleTextView");
        field.setAccessible(true);
        title = (TextView) field.get(this);
        title.setEllipsize(TextUtils.TruncateAt.MARQUEE);
        title.setMarqueeRepeatLimit(-1);
        returntrue;
    } catch (NoSuchFieldException e) {
        e.printStackTrace();
        returnfalse;
    } catch (IllegalAccessException e) {
        e.printStackTrace();
        returnfalse;
    } catch (NullPointerException e) {
        e.printStackTrace();
        returnfalse;
    }
}

publicvoidselectTitle() {
    if (title != null)
        title.setSelected(true);
}

// ------------ for Subtitle ----------@OverridepublicvoidsetSubtitle(CharSequence subTitle) {
    if (!reflectedSub) {
        reflectedSub = reflectSubTitle();
    }
    super.setSubtitle(subTitle);
    selectSubtitle();
}


@OverridepublicvoidsetSubtitle(int resId) {
    if (!reflected) {
        reflectedSub = reflectSubTitle();
    }
    super.setSubtitle(resId);
    selectSubtitle();
}

booleanreflectedSub=false;
privatebooleanreflectSubTitle() {
    try {
        Fieldfield= Toolbar.class.getDeclaredField("mSubtitleTextView");
        field.setAccessible(true);
        subTitle = (TextView) field.get(this);
        subTitle.setEllipsize(TextUtils.TruncateAt.MARQUEE);
        subTitle.setMarqueeRepeatLimit(-1);
        returntrue;
    } catch (NoSuchFieldException e) {
        e.printStackTrace();
        returnfalse;
    } catch (IllegalAccessException e) {
        e.printStackTrace();
        returnfalse;
    } catch (NullPointerException e) {
        e.printStackTrace();
        returnfalse;
    }
}

publicvoidselectSubtitle() {
    if (subTitle != null)
        subTitle.setSelected(true);
}

}