我有一个，PopupMenu而且我知道将菜单关联到该菜单的通常方法是使用popup.getMenuInflater().inflate(R.menu.my_menu, popup.getMenu());或类似方法。我的问题是，菜单中有很多项目，我需要能够以Java编程方式更改它们。我怎样才能做到这一点？
Answers:
只是想通了；对于遇到相同问题的任何人，您只需：
popup.getMenu().add(groupId, itemId, order, title);
对于MenuItem您要添加的每个对象。
只需创建弹出菜单，注册弹出窗口将在其下方显示的视图，并使用getMenu（）方法添加值。不要忘记调用show（）;。
PopupMenu menu = new PopupMenu(this, view);
menu.getMenu().add("titleRes");
menu.show();
在popupmenu.xml中定义ID
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="@+id/slot1"
app:showAsAction="ifRoom|withText"
android:title="Movies"
android:visible="true"/>
<item
android:id="@+id/slot2"
app:showAsAction="ifRoom|withText"
android:title="Music"
android:visible="true"/>
<item
android:id="@+id/slot3"
app:showAsAction="ifRoom|withText"
android:title="Comedy"
android:visible="true"/>
</menu>
PopupMenu popupMenu = new PopupMenu(FullMenuActivity.this, view);
popupMenu.setOnMenuItemClickListener(FullMenuActivity.this);
popupMenu.getMenu().add(1, R.id.slot1, 1, "slot1");
popupMenu.getMenu().add(1,R.id.slot2,2,"slot2");
popupMenu.getMenu().add(1,R.id.slot3,3,"slot3");
popupMenu.show();
@Override
public boolean onMenuItemClick(MenuItem item) {
switch (item.getItemId()) {
case R.id.slot1:
SessionManager.selected_slot = item.getTitle().toString();
Toast.makeText(this, "slot1 Clicked", Toast.LENGTH_SHORT).show();
return true;
case R.id.slot2:
SessionManager.selected_slot = item.getTitle().toString();
Toast.makeText(this, "slot2 Clicked", Toast.LENGTH_SHORT).show();
return true;
case R.id.slot3:
SessionManager.selected_slot = item.getTitle().toString();
Toast.makeText(this, "slot3 Clicked", Toast.LENGTH_SHORT).show();
return true;
default:
return true;
}
}
这是设置和处理ID的完整解决方案：
this.findViewById(R.id.hamburger_menu).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
PopupMenu menu = new PopupMenu(getApplicationContext(), v);
menu.getMenu().add(Menu.NONE, 1, 1, "Share");
menu.getMenu().add(Menu.NONE, 2, 2, "Comment");
menu.show();
menu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
int i = item.getItemId();
if (i == 1) {
//handle share
return true;
} else if (i == 2) {
//handle comment
return true;
} else {
return false;
}
}
});
}
});
注意：例如，共享和注释，也可以为数字1,2放置常量，以使代码更具可读性。
另外，我放，Menu.NONE是因为我不在乎对菜单项进行分组。如果要使组集的组ID = 1、2等...
@Voora Tarun给出了一个很好的答案，我以此为基础：首先，代替使用假mune.xml资源，我认为更好的方法是创建ids文件：
ids.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<item name="menuGroup" type="id"/>
<item name="menu1" type="id"/>
<item name="menu2" type="id"/>
<item name="menu3" type="id"/>
</resources>
然后，您可以执行以下操作：
private void showPopup(final View anchor) {
PopupMenu popupMenu = new PopupMenu(anchor.getContext(), anchor);
popupMenu.getMenu().add(R.id.menuGroup, R.id.menu1, Menu.NONE, "slot1");
popupMenu.getMenu().add(R.id.menuGroup, R.id.menu2, Menu.NONE,"slot2");
popupMenu.getMenu().add(R.id.menuGroup, R.id.menu3, Menu.NONE,"slot3");
popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
Toast.makeText(anchor.getContext(), item.getTitle() + "clicked", Toast.LENGTH_SHORT).show();
return true;
}
});
popupMenu.show();
}
private void getPopup(final TextView textView, ArrayList<String> arrayList) {
final PopupMenu popupMenu = new PopupMenu(sContext, textView);
for (int i = 0; i < arrayList.size(); i++) {
popupMenu.getMenu().add(i, Menu.FIRST, i, arrayList.get(i));
}
popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
textView.setText(item.getTitle());
return false;
}
});
popupMenu.show();
}
如果要查找带有回调的生成的弹出项，请使用此选项。
爪哇
public static void popupMenu(final Context context, View anchor, final LinkedHashMap<String,IPopupMenu> options){
PopupMenu popupMenu = new PopupMenu(context, anchor);
for(String key : options.keySet()){
popupMenu.getMenu().add(key);
}
popupMenu.getMenuInflater().inflate(R.menu.popup_menu,popupMenu.getMenu());
popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem menuItem) {
options.get(menuItem.getTitle()).onClick();
return true;
}
});
popupMenu.show();
}
public interface IPopupMenu{
void onClick();
}
XML格式
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
</menu>
例
LinkedHashMap<String,IPopupMenu> menu_items = new LinkedHashMap<>();
menu_items.put("Item Name", new Utils.IPopupMenu() {
@Override
public void onClick() {
//do your code
}
});
menu_items.put("My Item", new Utils.IPopupMenu() {
@Override
public void onClick() {
//do code
}
});
//you can anchor the popup menu to whatever you like. i.e Button, TextView, View.
popupMenu(context,button,menu_items);