Android 中工具栏 header 中的多行标题

Multiple lines titles in toolbars header in Android

我正在尝试将工具栏标题文本设置为多行,但它仅显示为单行,并且 15 个字符后的文本将成为 Android 中的 Eclipse。请大家帮帮我。

 Toolbar mToolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(mToolbar);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setDisplayShowHomeEnabled(true);


        if(!getSupportActionBar().isTitleTruncated()){
            getSupportActionBar().setTitle(job.getJob_title());
        }

            Spannable text = new SpannableString(job.getJob_title());
            text.
setSpan(new ForegroundColorSpan(MainApplication.getIconColor()), 0, text.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
            getSupportActionBar().setTitle(text);

            Drawable upArrow = getResources().getDrawable(R.drawable.abc_ic_ab_back_mtrl_am_alpha);
            upArrow.setColorFilter(MainApplication.getIconColor(), PorterDuff.Mode.SRC_ATOP);
            getSupportActionBar().setHomeAsUpIndicator(upArrow);
<android.support.v7.widget.Toolbar
    android:id="@+id/product_details_toolbar"
    style="@style/style.toolbar"
    android:layout_width="match_parent"
    android:layout_height="@dimen/double_height_toolbar"
    android:minHeight="?attr/actionBarSize"
    android:gravity="top"
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
    app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" >

    <TextView
        android:id="@+id/product_details_title"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="top"
        android:paddingTop="@dimen/padding_normal"
        style="@android:style/TextAppearance.Holo.Widget.ActionBar.Title.Inverse"
        android:maxLines="2" />

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

试试这个