如何更改所选 SlidingMenu 行的背景颜色并保持不变，直到选择其他行？

Posted 2023-02-21

【中文标题】如何更改所选 SlidingMenu 行的背景颜色并保持不变，直到选择其他行？

【英文标题】：How to change the background color of the selected SlidingMenu row and keep it the same till some other row is selected?

【发布时间】：2014-06-16 18:00:42

【问题描述】：

我使用了带有 ListView 的 DrawerLayout 来生成滑动菜单。我想做以下事情；

我想将所选列表行的颜色更改为黑色并保持不变，直到我选择其他行，即当我单击滑动菜单中的 mytask 行时，该行应突出显示为黑色并且当我再次打开滑动菜单时，我希望该行仍然突出显示，直到我选择其他行。我该怎么做？

我希望在单击该行时显示橙色视图。目前我的视图变得可见，但是当我选择其他行时，前一行视图仍然可见。如何解决？

我的代码如下。请指导我一步一步。

activity_home.xml

  <android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:layout_
android:layout_>


<FrameLayout
    android:id="@+id/content_frame"
    android:layout_
    android:layout_ />




<ListView
    android:id="@+id/left_drawer"
    android:layout_
    android:visibility="visible"
    android:layout_
    android:layout_gravity="start"
    android:choiceMode="singleChoice"
    android:divider="@android:color/darker_gray"
    android:dividerHeight="0dp"
     android:listSelector="@drawable/sel"
    android:background="#3e3e3e"/>


 </android.support.v4.widget.DrawerLayout>

custom_drawer.xml

        <?xml version="1.0" encoding="utf-8"?>
  <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:layout_
   android:layout_ 
>

<LinearLayout
  android:id="@+id/itemLayout"
  android:layout_
  android:layout_
  android:layout_alignParentLeft="true"
  android:orientation="vertical"

  android:layout_marginTop="0dp"

 >

          <RelativeLayout

              android:layout_
              android:layout_


             >

              <ImageView
                  android:id="@+id/drawer_icon"
                  android:layout_
                  android:layout_
                  android:layout_marginLeft="25dp"
                  android:layout_marginTop="7dp" />

              <TextView
                  android:id="@+id/drawer_itemName"
                  android:layout_
                  android:layout_
                  android:layout_centerVertical="true"
                 android:textSize="14dp"
                  android:layout_marginLeft="24dp"
                  android:textColor="@android:color/white"
                  android:layout_toRightOf="@+id/drawer_icon"
                  android:text="TextView" />
               <View
  android:layout_
  android:layout_
  android:background="@android:color/black"
  android:layout_marginBottom="0.01dp"
  android:layout_marginTop="0.01dp"
  android:layout_marginLeft="9dp"



   ></View>

               <ImageView
                   android:id="@+id/imageView1"
                   android:layout_
                   android:layout_
                   android:layout_alignParentRight="true"
                   android:layout_alignTop="@+id/drawer_itemName"
                   android:layout_marginRight="18dp"
                   android:src="@android:drawable/arrow_down_float" />

               <View
                   android:id="@+id/vieworange"
                   android:layout_
                   android:layout_
                   android:layout_alignParentRight="true"
                   android:layout_alignParentTop="true"
                   android:background="@drawable/menushade"
                   android:visibility="visible" />

          </RelativeLayout>

           <View
  android:layout_
  android:layout_
  android:background="@android:color/black"
  android:layout_marginBottom="0.01dp"
  android:layout_marginTop="0.01dp"



   ></View>

</LinearLayout>

<View
    android:id="@+id/vieworangelist"
    android:layout_
    android:layout_
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:visibility="gone"
    android:background="@color/orange" />

 </RelativeLayout>

可绘制文件夹中的selector.xml

  <?xml version="1.0" encoding="utf-8"?>
 <selector xmlns:android="http://schemas.android.com/apk/res/android">

<item android:drawable="@android:color/black" android:state_activated="false"/>
<item android:drawable="@android:color/black" android:state_activated="false" android:state_pressed="false"/>
<item android:drawable="@android:color/black" android:state_pressed="true"/>
<item android:drawable="@android:color/black" android:state_enabled="true" ></item>
<item android:drawable="@android:color/black" android:state_activated="true"/>



 </selector>

适配器类

        @Override
public View getView(int position, View convertView, ViewGroup parent) 
    // TODO Auto-generated method stub

    DrawerItemHolder drawerHolder;
    View view = convertView;

    if (view == null) 
        LayoutInflater inflater = ((Activity) context).getLayoutInflater();
        drawerHolder = new DrawerItemHolder();
        String font="font/Dosis-SemiBold.otf";
        //final Typeface tp=Typeface.createFromAsset(.getAssets(), font);
        final Typeface tp=Typeface.createFromAsset(getContext().getAssets(), font);

        view = inflater.inflate(layoutResID, parent, false);
        drawerHolder.ItemName = (TextView) view
                .findViewById(R.id.drawer_itemName);
        drawerHolder.ItemName.setTypeface(tp);
        drawerHolder.icon = (ImageView) view.findViewById(R.id.drawer_icon);
  drawerHolder.vieworange=(View)view.findViewById(R.id.vieworangelist);
    //drawerHolder.vieworange.setVisibility(view.VISIBLE);

        view.setTag(drawerHolder);

     else 
        drawerHolder = (DrawerItemHolder) view.getTag();

    

    DrawerItem dItem = (DrawerItem) this.drawerItemList.get(position);
            drawerHolder.ItemName.setText(dItem.getItemName());
    if(dItem.getImgResID()!=0)
    
    drawerHolder.icon.setImageDrawable(view.getResources().getDrawable(
            dItem.getImgResID()));
    
    else
    
    drawerHolder.icon.setImageBitmap(dItem.bmp);
    


    return view;


private static class DrawerItemHolder 
    TextView ItemName;
    ImageView icon;
    View vieworange;

【参考方案1】：

使用此函数并在每次要更改行颜色时调用它。该函数的作用是将所有其他行的背景更改为默认颜色，并将按下行的背景更改为新颜色。

public void colorMenuRow(ListView lv, int position)

    // Changing all rows to default background color
    for (int i = 0; i < lv.getCount(); i++) 
        View listRow = (View) lv.getChildAt(i);
        if(listRow != null)
        listRow.setBackgroundColor(Color.parseColor("#ffffff"));
    

    // Changing current row color
    View view = (View) lv.getChildAt(position);
    view.setBackgroundColor(Color.parseColor("#000000"));