今天学习了控件toolbar
android:layout_ width="match_ parent"
android:layout_ _height="?attr/actionBarSize"
android:background=" #fff00
app:navigationlcon=" @drawable/ic_ baseline_ _arrow_ _back_ 24"
app:title="主标题"
app:titleTextColor=" #f0000”
app:titleMarginStart="90dp"
app:subtitle="子标题"
app:subtitleTextColo-"#ffff
app:logo="@mipmap/ic_ _launcher"
标签：总结,25,layout,app,2023.2,android,ic From： https://www.cnblogs.com/wllovelmbforever/p/17155264.html