我想实现的操作杆,其中在点击一个按钮显示一个弹出菜单。 这是菜单。 XML(操作栏中的菜单项)
I am trying to implement an action bar in which one of the buttons on click shows a popup menu. Here's the menu. XML (menu items in the action bar)
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/search"
android:icon="@drawable/ic_action_search"
android:orderInCategory="0"
android:showAsAction="always"
android:title="@string/menu_search"/>
<item
android:id="@+id/refresh"
android:icon="@drawable/ic_action_refresh"
android:orderInCategory="1"
android:showAsAction="always"
android:title="@string/menu_refresh"/>
<Item
android:id="@+id/popup"
android:icon="@drawable/ic_action_search"
android:onClick="showPopup"
android:orderInCategory="1"
android:showAsAction="always"
android:title="@string/menu_search" />
我希望显示的ID有项@ + ID /弹出的点击弹出式菜单。
I wish to show a popup menu on the click of the item having id "@+id/popup".
下面是XML的弹出式菜单
here is the XML for the popup menu
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/item1"
android:icon="@drawable/ic_action_search"
android:orderInCategory="0"
android:showAsAction="always"
android:title="@string/menu_search"/>
<item
android:id="@+id/item2"
android:icon="@drawable/ic_action_search"
android:orderInCategory="1"
android:showAsAction="always"
android:title="@string/menu_search"/>
下面是onClick的方法按钮
here is the onClick method for the button
public void showPopup(View v) {
PopupMenu popup = new PopupMenu(this, v);
MenuInflater inflater = popup.getMenuInflater();
inflater.inflate(R.menu.overflow, popup.getMenu());
popup.show();
}
和问题是,没有任何弹出窗口显示了上点击该按钮。需要帮助的人。
And the problem is that no popup shows up on click of that button. Need help folks.
我找到了解决这个。相反,使用菜单XML充气弹出菜单中,我做了一个XML布局文件。
I found a solution to this. Instead to using the menu XML to inflate the popup menu, I made a XML layout file.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#8b8989"
android:orientation="vertical"
android:padding="10dip" >
<TextView
android:id="@+id/menuItem1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dip"
android:text="@string/menu1" />
<TextView
android:id="@+id/menuItem2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dip"
android:text="@string/menu2" />
<TextView
android:id="@+id/menuItem3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dip"
android:text="@string/menu3" />
</LinearLayout>
和我改变onClick的方法
and i changed the onClick method
public void showPopup(View v) {
LayoutInflater inflater = (LayoutInflater) MainActivity.this
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
PopupWindow pw = new PopupWindow(inflater.inflate(
R.layout.overflow_layout, null, false), 300, 400, true);
pw.showAtLocation(findViewById(R.id.container), Gravity.CENTER, 0,
0);
}
这解决了这个问题。