折叠工具栏布局android标题椭圆形

Question

I'm using android design support library 25.0.1, there is one issue with the title in the collapsing toolbar layout, my title is long and it is ellipsized in expanded condition even when there is space for it to show.

Is there any solution by which we can show title with ellipsize off in the expanded mode . .

although there is some space availbale the title is ellispsized

collapsing toolbar code :

<net.opacapp.multilinecollapsingtoolbar.CollapsingToolbarLayout
            android:id="@+id/collapsing_toolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fitsSystemWindows="true"
            app:contentScrim="@color/white"
            app:titleEnabled="true"
            app:expandedTitleGravity="center_horizontal"
            app:expandedTitleMarginTop="75dp"
            app:expandedTitleTextAppearance="@style/ExpandedAppBar"
            app:layout_scrollFlags="scroll|exitUntilCollapsed">

Answer 1

You can create custom Marquee-able Toolbar, This code may help you

public class MarqueeToolbar extends Toolbar {

    TextView title;

    public MarqueeToolbar(Context context) {
        super(context);
    }

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

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

    @Override
    public void setTitle(CharSequence title) {
        if (!reflected) {
            reflected = reflectTitle();
        }
        super.setTitle(title);
        selectTitle();
    }

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

    boolean reflected = false;
    private boolean reflectTitle() {
        try {
            Field field = Toolbar.class.getDeclaredField("mTitleTextView");
            field.setAccessible(true);
            title = (TextView) field.get(this);
            title.setEllipsize(TextUtils.TruncateAt.MARQUEE);
            title.setMarqueeRepeatLimit(-1);
            return true;
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
            return false;
        } catch (IllegalAccessException e) {
            e.printStackTrace();
            return false;
        } catch (NullPointerException e) {
            e.printStackTrace();
            return false;
        }
    }

    public void selectTitle() {
        if (title != null)
            title.setSelected(true);
    }
}

Answer 2

我正在使用https://github.com/opacapp/multiline-collapsingtoolbar这个库来解决我的问题，除了标题中的阴影外，它的效果很好