Problems with Android Menu

1. Easy to use

@Override      Public Boolean Oncreateoptionsmenu (Menu menu) {        getmenuinflater (). Inflate (R.menu.menu_main,menu);         return true ;    }

<menu xmlns:android= "http://schemas.android.com/apk/res/android"    xmlns:app= "http// Schemas.android.com/apk/res-auto ">    <item android:id=" @+id/share "android:icon=" @mipmap/share "Android: title= "Share" app:showasaction= "Always" ></item>    <item  android:id= "@+id/star" android:icon= "@ Mipmap/star "Android:title=" collection "app:showasaction= Always" ></item></menu>

2. Using a custom Actionview

Sometimes it is possible to implement the form of a text + picture, which requires us to customize a layout

<item  android:id= "@+id/good" android:icon= "@mipmap/good" android:title= "likes" app:showasaction= "Always" app: actionlayout= "@layout/tool_bar_icon_good_layout" ></item>

3. Refresh Menu

Can call

Invalidateoptionsmenu ();
Supportinvalidateoptionsmenu ();
When the method is called, the system triggers

public boolean Onprepareoptionsmenu (Menu menu) {... }

Problems with Android Menu