Color modification of menu item icon in ToolBar

Modify the menu.xml as follows:

<menu xmlns:tools="http://schemas.android.com/tools"
    xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- Icon and titles are set in code for menu_star and menu_edit -->

    <item
        android:id="@+id/menu_add"
        android:icon="@drawable/zte_add"
        android:showAsAction="always"
        android:title="menu_add"
        android:iconTint="@color/toolbar_back"// 此处就是修改图标颜色的地方
        tools:ignore="AppCompatResource" />

Modify the code as follows:

@Override
    public boolean onCreateOptionsMenu(Menu menu) {
        final MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.quickcontact, menu);
        for(int i = 0; i < menu.size(); i++){
            Drawable drawable = menu.getItem(i).getIcon();
            if(drawable != null) {
                drawable.mutate();
                //这里修改为你想修改的颜色
                drawable.setColorFilter(getResources().getColor(R.color.toolbar_back), PorterDuff.Mode.SRC_ATOP);
            }
        }
        return true;