创建自定义弹出的对话框菜单

Question

目前，我试图在菜单中点击按钮实现弹出菜单如图以下画面：

我试图popupwindow方法，但也无法达到精确的情况。 这是我正在努力：

private View.OnClickListener showPopupWindow() { 
    return new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      PopupWindow popUp = popupWindowsort(); 
      popUp.showAsDropDown(v, 1, 1); // show popup like dropdown list 
     } 
    }; 
} 

private PopupWindow popupWindowsort() { 

    // initialize a pop up window type 
    popupWindow = new PopupWindow(context); 

    ArrayList<String> sortList = new ArrayList<String>(); 
    sortList.add("VIEW FULL"); 
    sortList.add("REPORT"); 
    sortList.add("ADD TO LIST"); 
    sortList.add("ADD TO CART"); 

    ArrayAdapter<String> adapter = new ArrayAdapter<String>(context, R.layout.drop_down_line, 
      sortList); 
    // the drop down list is a list view 
    ListView listViewSort = new ListView(context); 

    // set our adapter and pass our pop up window contents 
    listViewSort.setAdapter(adapter); 

    // set on item selected 
    listViewSort.setOnItemClickListener(onItemClickListener()); 

    // some other visual settings for popup window 
    popupWindow.setFocusable(true); 
    popupWindow.setWidth(300); 
    popupWindow.setBackgroundDrawable(getResources().getDrawable(R.drawable.background)); 
    popupWindow.setHeight(WindowManager.LayoutParams.WRAP_CONTENT); 


    // set the listview as popup content 
    popupWindow.setContentView(listViewSort); 

    return popupWindow; 
} 

private AdapterView.OnItemClickListener onItemClickListener() { 
    return new AdapterView.OnItemClickListener() { 

     @Override 
     public void onItemClick(AdapterView parent, View view, int position, long id) { 
      if (position == 0) { 

       // adapter.notifyDataSetChanged(); 
      } else if (position == 1) { 
       report_lay.setVisibility(View.VISIBLE); 
       // adapter.notifyDataSetChanged(); 
      } else { 

       // adapter.notifyDataSetChanged(); 
       Log.i(TAG, "position2 " + position); 
      } 
      dismissPopup(); 
     } 
    }; 
} 

private void dismissPopup() { 
    if (popupWindow != null) { 
     popupWindow.dismiss(); 
    } 
} 

但我发现了以下结果：

，这也是在棉花糖引起问题。

/我如何创建这样的弹出菜单？任何帮助将不胜感激

Answer 1

你必须使用PopupMenu而不是PopupWindow。

示例代码：

public class MainActivity extends AppCompatActivity { 

    private Context context; 
    private ImageView img; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     context = this; 

     img = (ImageView) findViewById(R.id.imageView); 
     img.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 

       PopupMenu popup = new PopupMenu(MainActivity.this, v); 
       popup.getMenuInflater().inflate(R.menu.pop_up, popup.getMenu()); 

       popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() { 
        public boolean onMenuItemClick(MenuItem item) { 
         Toast.makeText(MainActivity.this, "You Clicked : " + item.getTitle(), Toast.LENGTH_SHORT).show(); 
         return true; 
        } 
       }); 
       popup.show();//showing popup menu 
      } 
     }); 
    } 
} 

布局：

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/base" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:background="@color/white" 
    android:orientation="horizontal"> 


    <RelativeLayout 
     android:layout_width="match_parent" 
     android:layout_height="50dp" 
     android:layout_alignParentStart="true" 
     android:layout_alignParentTop="true" 
     android:background="#D6D7D7"> 

     <ImageView 
      android:id="@+id/imageView" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_alignParentEnd="true" 
      android:layout_centerVertical="true" 
      android:layout_marginEnd="20dp" 
      android:gravity="center" 
      android:src="@mipmap/more" /> 
    </RelativeLayout> 
</RelativeLayout> 

菜单/ pop_up.xml

<?xml version="1.0" encoding="utf-8"?> 
<menu xmlns:android="http://schemas.android.com/apk/res/android"> 
    <item 
     android:id="@+id/add" 
     android:title="@string/one" /> 
    <item 
     android:id="@+id/sub" 
     android:title="@string/two" /> 
    <item 
     android:id="@+id/mul" 
     android:title="@string/three" /> 
    <item 
     android:id="@+id/div" 
     android:title="@string/four" /> 
</menu> 

更新：菜单背景颜色变化

使用这种风格在你的应用的主题。

<resources> 

    <!-- Base application theme. --> 
    <style name="AppTheme" parent="Theme.AppCompat.Light"> 
     <!-- Customize your theme here. --> 
     <item name="colorPrimary">@color/colorPrimary</item> 
     <item name="colorPrimaryDark">@color/colorPrimaryDark</item> 
     <item name="colorAccent">@color/colorAccent</item> 

     <!--Add modified themes--> 
     <item name="android:popupMenuStyle">@style/PopupMenu</item> 
     <item name="popupMenuStyle">@style/PopupMenu</item> 
     <item name="android:itemTextAppearance">@style/itemTextStyle.AppTheme</item> 
    </style> 

    <style name="PopupMenu" parent="@android:style/Widget.PopupMenu"> 
     <item name="android:popupBackground">#B4B52B</item> 
    </style> 

    <style name="itemTextStyle.AppTheme" parent="@android:style/TextAppearance.Widget.IconMenu.Item"> 
     <item name="android:textColor">@color/white</item> 
    </style> 
</resources>