我想将图片添加到菜单项标题中。
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
tools:showIn="navigation_view">
<group android:checkableBehavior="single">
<item
android:id="@+id/nav_admin"
android:icon="@drawable/ic_admin"
android:title="管理画面"/>
<item
android:id="@+id/nav_link"
android:icon="@drawable/ic_link"
android:title="このアプリについて" />
<item
android:id="@+id/nav_logout"
android:icon="@drawable/ic_logout"
android:title="ログアウト" />
</group>
</menu>
在标题名称之后，我想在菜单中添加图像。我怎么能这样做？
答案 0 :(得分：0)
只需创建自定义视图，然后将其添加到菜单项中，如下所示：
<item
android:id="@+id/nav_admin"
android:icon="@drawable/ic_admin"
android:title="管理画面"
app:actionLayout="@layout/my_custom_item"
/>
<强>更新
我通常在代码中更改这些内容：
public boolean onCreateOptionsMenu(android.view.Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.my_menu, menu);
getLayoutInflater().setFactory(new Factory() {
public View onCreateView(String name, Context context,
AttributeSet attrs) {
if (name.equalsIgnoreCase(
"com.android.internal.view.menu.IconMenuItemView")) {
try {
LayoutInflater li = LayoutInflater.from(context);
final View view = li.createView(name, null, attrs);
new Handler().post(new Runnable() {
public void run() {
// set the text color, font, text size
Typeface face = Typeface.createFromAsset(
getAssets(),"OldeEnglish.ttf");
((TextView) view).setTypeface(face);
((TextView) view).setTextSize(12);
((TextView) view).setTextColor(Color.RED);
}
});
return view;
} catch (InflateException e) {
//Handle any inflation exception here
} catch (ClassNotFoundException e) {
//Handle any ClassNotFoundException here
}
}
return null;
}
});
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.nav_admin:
//something
break;
case R.id.nav_logout:
//something
break;
case R.id.nav_link:
//something
break;
}
return false;
}
}
答案 1 :(得分：0)
首先在IconizedMenu.Java上创建
package project.student.dm.com.floatingactionbutton;
/**
* Created by PatelD on 04-10-2017.
*/
import android.annotation.SuppressLint;
import android.content.Context;
import android.support.v7.view.SupportMenuInflater;
import android.support.v7.view.menu.MenuBuilder;
import android.support.v7.view.menu.MenuPopupHelper;
import android.support.v7.view.menu.MenuPresenter;
import android.support.v7.view.menu.SubMenuBuilder;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
/**
* Copied from android.support.v7.widget.PopupMenu.
* "mPopup.setForceShowIcon(true);" in the constructor does the trick :)
*
* @author maikvlcek
* @since 5:00 PM - 1/27/14
*/
public class IconizedMenu implements MenuBuilder.Callback, MenuPresenter.Callback {
private Context mContext;
private MenuBuilder mMenu;
private View mAnchor;
private MenuPopupHelper mPopup;
private OnMenuItemClickListener mMenuItemClickListener;
private OnDismissListener mDismissListener;
/**
* Callback interface used to notify the application that the menu has closed.
*/
public interface OnDismissListener {
/**
* Called when the associated menu has been dismissed.
*
* @param menu The PopupMenu that was dismissed.
*/
public void onDismiss(IconizedMenu menu);
}
/**
* Construct a new PopupMenu.
*
* @param context Context for the PopupMenu.
* @param anchor Anchor view for this popup. The popup will appear below the anchor if there
* is room, or above it if there is not.
*/
@SuppressLint("RestrictedApi")
public IconizedMenu(Context context, View anchor) {
mContext = context;
mMenu = new MenuBuilder(context);
mMenu.setCallback(this);
mAnchor = anchor;
mPopup = new MenuPopupHelper(context, mMenu, anchor);
mMenu.setCallback(this);
mPopup.setForceShowIcon(true);
}
/**
* @return the {@link android.view.Menu} associated with this popup. Populate the returned Menu with
* items before calling {@link #show()}.
* @see #show()
* @see #getMenuInflater()
*/
public Menu getMenu() {
return mMenu;
}
/**
* @return a {@link android.view.MenuInflater} that can be used to inflate menu items from XML into the
* menu returned by {@link #getMenu()}.
* @see #getMenu()
*/
@SuppressLint("RestrictedApi")
public MenuInflater getMenuInflater() {
return new SupportMenuInflater(mContext);
}
/**
* Inflate a menu resource into this PopupMenu. This is equivalent to calling
* popupMenu.getMenuInflater().inflate(menuRes, popupMenu.getMenu()).
*
* @param menuRes Menu resource to inflate
*/
public void inflate(int menuRes) {
getMenuInflater().inflate(menuRes, mMenu);
}
/**
* Show the menu popup anchored to the view specified during construction.
*
* @see #dismiss()
*/
@SuppressLint("RestrictedApi")
public void show() {
mPopup.show();
}
/**
* Dismiss the menu popup.
*
* @see #show()
*/
@SuppressLint("RestrictedApi")
public void dismiss() {
mPopup.dismiss();
}
/**
* Set a listener that will be notified when the user selects an item from the menu.
*
* @param listener Listener to notify
*/
public void setOnMenuItemClickListener(OnMenuItemClickListener listener) {
mMenuItemClickListener = listener;
}
/**
* Set a listener that will be notified when this menu is dismissed.
*
* @param listener Listener to notify
*/
public void setOnDismissListener(OnDismissListener listener) {
mDismissListener = listener;
}
/**
* @hide
*/
public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
if (mMenuItemClickListener != null) {
return mMenuItemClickListener.onMenuItemClick(item);
}
return false;
}
/**
* @hide
*/
public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
if (mDismissListener != null) {
mDismissListener.onDismiss(this);
}
}
/**
* @hide
*/
@SuppressLint("RestrictedApi")
public boolean onOpenSubMenu(MenuBuilder subMenu) {
if (subMenu == null) return false;
if (!subMenu.hasVisibleItems()) {
return true;
}
// Current menu will be dismissed by the normal helper, submenu will be shown in its place.
new MenuPopupHelper(mContext, subMenu, mAnchor).show();
return true;
}
/**
* @hide
*/
public void onCloseSubMenu(SubMenuBuilder menu) {
}
/**
* @hide
*/
public void onMenuModeChange(MenuBuilder menu) {
}
/**
* Interface responsible for receiving menu item click events if the items themselves
* do not have individual item click listeners.
*/
public interface OnMenuItemClickListener {
/**
* This method will be invoked when a menu item is clicked if the item itself did
* not already handle the event.
*
* @param item {@link MenuItem} that was clicked
* @return <code>true</code> if the event was handled, <code>false</code> otherwise.
*/
public boolean onMenuItemClick(MenuItem item);
}
}
要显示菜单，
IconizedMenu popup = new IconizedMenu(MainActivity.this, view);
MenuInflater inflater = popup.getMenuInflater();
inflater.inflate(R.menu.pop_up, popup.getMenu());
popup.setOnMenuItemClickListener(new IconizedMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
Toast.makeText(MainActivity.this, item.getTitle().toString(), Toast.LENGTH_SHORT).show();
return false;
}
});
popup.show();//showing popup menu
创建pop_up.xml，
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".MainActivity">
<item
android:id="@+id/add"
android:icon="@mipmap/ic_launcher"
android:title="Mathematics" />
<item
android:id="@+id/sub"
android:icon="@mipmap/ic_launcher"
android:title="Chemistry" />
<item
android:id="@+id/mul"
android:icon="@mipmap/ic_launcher"
android:title="Physics" />
<item
android:id="@+id/div"
android:icon="@mipmap/ic_launcher"
android:title="Biology" />
</menu>