如何自定义Android中每个选项的弹出菜单？

Question

如何在每个popup菜单中自定义popupmenu以更改每个选项的颜色/字体/样式？

Answer 1

你可以把一个弹出式的视图，或作为saperate活动甚至（透明backgound，看看Android上的主题选项）

然后，当你想显示弹出，你可以启动它从应用程序中的任何活动中，它始终具有与bg和按钮相同的样式，您只会将其实际数据馈送给它。

对于〔实施例：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="300dp" 
android:background="@drawable/bg_popup" 
android:layout_gravity="center" 
android:alpha="0.8" 
android:visibility="visible" 
android:id="@+id/generic_popup2_container" 
android:layout_height="300dp"> 
<TextView 
    android:id="@+id/generic_popup2_tv_title" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:textColor="@color/white" 
    android:layout_centerHorizontal="true" 
    android:layout_marginTop="20dp" 
    android:layout_alignParentTop="true" 
    android:text="header" 
    android:gravity="center" 
    android:textSize="28sp" /> 
<TextView 
    android:id="@+id/generic_popup2_tv_inner_text" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:textColor="@color/white" 
    android:text="content" 
    android:textSize="16sp" 
    android:gravity="center" 
    android:layout_marginTop="20dp" 
    android:layout_below="@id/generic_popup2_tv_title" 
    android:layout_centerHorizontal="true" /> 
<LinearLayout 
    android:id="@+id/generic_popup_2_buttons_layout" 
    android:layout_centerHorizontal="true" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentBottom="true" 
    android:layout_marginBottom="20dp" 
    android:orientation="horizontal"> 
    <Button 
     android:id="@+id/layout_2_generic_popup_btn_action1" 
     android:layout_width="115dp" 
     android:layout_height="35dp" 
     android:textColor="@color/white" 
     android:layout_marginBottom="10dp" 
     android:textSize="12sp" 
     android:layout_marginRight="10dp" 
     android:background="@drawable/popup_btn_blue" /> 
    <Button 
     android:id="@+id/layout_2_generic_popup_btn_action2" 
     android:layout_width="115dp" 
     android:layout_height="35dp" 
     android:textColor="@color/white" 
     android:textSize="12sp" 
     android:background="@drawable/popup_btn_blue" /> 
</LinearLayout> 

Answer 2

创建一个弹出窗口和自定义它，你会的。
这里有一些有用的链接：
how-to-create-popup-window-in-android
你也可以看看quickaction dialog。

Answer 3

我有同样的问题来自定义PopupMenu的字体和文字大小。最后我用反射。它可以用于任何自定义弹出菜单项目。 android支持菜单项的资源布局是在android.support.v7.internal.view.menu.MenuPopupHelper中定义的，它的字段名是“ITEM_LAYOUT”，声明为static final;它的值等于“R.layout.abc_popup_menu_item_layout” 我在Grepcode中找到布局文件并将其复制到我的项目布局目录中。我将其命名为popup_menu_item_layout.xml。我的弹出式菜单项的布局来这里

<?xml version="1.0" encoding="utf-8"?> 
<mypackage.PopupMenuItemView 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="?attr/dropdownListPreferredItemHeight" 
    android:minWidth="196dip" 
    android:paddingRight="16dip"> 

<!-- Icon will be inserted here. --> 

<!-- The title and summary have some gap between them, and this 'group' should be centered vertically. --> 
<RelativeLayout 
     android:layout_width="0dip" 
     android:layout_weight="1" 
     android:layout_height="wrap_content" 
     android:layout_gravity="center_vertical" 
     android:layout_marginLeft="16dip" 
     android:duplicateParentState="true"> 

    <TextView 
      android:id="@+id/title" 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:layout_alignParentTop="true" 
      android:layout_alignParentLeft="true" 
      android:textAppearance="?attr/textAppearanceLargePopupMenu" 
      android:singleLine="true" 
      android:duplicateParentState="true" 
      android:ellipsize="marquee" 
      android:fadingEdge="horizontal"/> 

    <TextView 
      android:id="@+id/shortcut" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_below="@id/title" 
      android:layout_alignParentLeft="true" 
      android:textAppearance="?attr/textAppearanceSmallPopupMenu" 
      android:singleLine="true" 
      android:duplicateParentState="true"/> 

</RelativeLayout> 

<!-- Checkbox, and/or radio button will be inserted here. --> 

然后创建自定义类PopupMenuItemView：

public class PopupMenuItemView extends android.support.v7.internal.view.menu.ListMenuItemView { 

public PopupMenuItemView(Context context, AttributeSet attrs) { 
    super(context, attrs); 
} 

public PopupMenuItemView(Context context, AttributeSet attrs, int defStyle) { 
    super(context, attrs, defStyle); 
} 

@Override 
protected void onFinishInflate() { 
    super.onFinishInflate(); 

    applyTypefaceToAll(this, your_typeface); 
    TypefaceUtils.applyTextSizeToAll(this, your_textsize); 
} 

public static void applyTypefaceToAll(View view, Typeface typeface) { 
    if (view instanceof ViewGroup) { 
     ViewGroup viewGroup = (ViewGroup) view; 
     for (int childIndex = 0; childIndex < viewGroup.getChildCount(); childIndex++) 
      applyTypefaceToAll(viewGroup.getChildAt(childIndex), typeface); 
    } else if (view instanceof TextView) { 
     TextView textView = (TextView) view; 
     textView.setTypeface(typeface); 
     textView.setPaintFlags(textView.getPaintFlags() | Paint.SUBPIXEL_TEXT_FLAG | Paint.DEV_KERN_TEXT_FLAG | Paint.ANTI_ALIAS_FLAG); 
    } 
} 

public static void applyTextSizeToAll(View view, float size) { 
    if (view instanceof ViewGroup) { 
     ViewGroup viewGroup = (ViewGroup) view; 
     for (int childIndex = 0; childIndex < viewGroup.getChildCount(); childIndex++) 
      applyTextSizeToAll(viewGroup.getChildAt(childIndex), size); 
    } else if (view instanceof TextView) { 
     TextView textView = (TextView) view; 
     textView.setTextSize(TypedValue.COMPLEX_UNIT_PX, size); 
     textView.setPaintFlags(textView.getPaintFlags() | Paint.SUBPIXEL_TEXT_FLAG | Paint.DEV_KERN_TEXT_FLAG | Paint.ANTI_ALIAS_FLAG); 
    } 
} 
} 

最后替换布局资源ID通过反射菜单项;一些在您的主要活动onCreate方法或在您的应用程序的onCreate方法，其中，如：

try { 
     setFinalStatic(MenuPopupHelper.class.getDeclaredField("ITEM_LAYOUT"), 
       R.layout.popup_menu_item_layout); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 

    public static void setFinalStatic(Field field, Object newValue) throws Exception { 
    field.setAccessible(true); 

    try { 
     Field modifiersField = Field.class.getDeclaredField("modifiers"); 
     modifiersField.setAccessible(true); 
     modifiersField.setInt(field, field.getModifiers() & ~Modifier.FINAL); 
    }catch (Exception e) { 
     e.printStackTrace(); 
    } 

    field.set(null, newValue); 
}