更改列表視圖的選擇背景

Question

在Android中，

我有使用以下代碼填寫的列表

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    LayoutInflater inflater = (LayoutInflater) context
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    View rowView = inflater.inflate(R.layout.main, parent, false);
    TextView textView = (TextView) rowView.findViewById(R.id.label);
    ImageView imageView = (ImageView) rowView.findViewById(R.id.logo);
    textView.setText(values[position]);

    // Change icon based on name
    String s = values[position];

    System.out.println(s);

    if (s.equals("xxxxxxxx")) {
        imageView.setImageResource(R.drawable.one);
    } else if (s.equals("yyyyyyyyyy")) {
        imageView.setImageResource(R.drawable.two);
    } else if (s.equals("zzzzzzzzzzzzzzzzz")) {
        imageView.setImageResource(R.drawable.three);
    }

    // to change the background color


    return rowView;
}

如何在布局中更改選擇顏色而不是橙色，我使用以下代碼

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" 
    android:background="#DFE1E5">

    <ImageView
        android:id="@+id/logo"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_marginLeft="5dp"
        android:layout_marginRight="20dp"
        android:layout_marginTop="5dp"
        android:src="@drawable/one" >
    </ImageView>

    <TextView
        android:id="@+id/label"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@+id/label"
        android:textSize="20dp" >
    </TextView>

</LinearLayout>

解決我做到了

首先將顏色xml添加到drwable

<?xml version="1.0" encoding="utf-8"?> 

<resources> <color name="selection_color">#0587F4</color> 
</resources>

其次，我將XML添加到drwable中以處理選擇

<?xml version="1.0" encoding="utf-8"?>

<selector  xmlns:android="http://schemas.android.com/apk/res/android">

    <item 
        android:drawable="@color/selection_color"

        android:state_selected="true"/>
   <!--  <item android:drawable="@drawable/list_selection_bg" android:state_pressed="true"/>
--> 
</selector>

第一個問題是它會引發錯誤“ @ color / selection_color”

任何實現這一目標的想法

Answer 1

創建選擇器的XML並將其保存在可繪制的文件夾中

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/list_selection_bg" android:state_selected="true"/>
    <item android:drawable="@drawable/list_selection_bg" android:state_pressed="true"/>
</selector>

然后在Adapter類的getView方法中添加以下代碼

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    LayoutInflater inflater = (LayoutInflater) context
    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    View rowView = inflater.inflate(R.layout.main, parent, false);
    TextView textView = (TextView) rowView.findViewById(R.id.label);
    ImageView imageView = (ImageView) rowView.findViewById(R.id.logo);
    textView.setText(values[position]);

    // Change icon based on name
    String s = values[position];

    System.out.println(s);

    if (s.equals("xxxxxxxxxxx")) {
    imageView.setImageResource(R.drawable.one);
    } else if (s.equals("yyyyyyyy")) {
    imageView.setImageResource(R.drawable.two);
    } else if (s.equals("zzzzzzzzzzzzzzzzz")) {
    imageView.setImageResource(R.drawable.three);
    }

    // to change the background color
rowView.setBackgroundResource(R.drawable.alternate_list_color1);


    return rowView;
}

Answer 2

在ListView中提一下

android：listSelector =“ @ drawable / list_selector”

並將list_selector.xml放入drawable並粘貼此代碼，您可以根據需要進行更改...

<!-- Selected -->
<item android:drawable="@drawable/list_hover" android:state_focused="true" android:state_pressed="false"/>
<!-- @drawable/tab_focus -->


<!-- Pressed -->
<item android:drawable="@drawable/list_hover" android:state_pressed="true"/>
<!-- @drawable/tab_press -->