This tag and its children can be replaced by one <TextView/> and a compound drawable

<?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="wrap_content"
    android:orientation="horizontal" >
    
    <ImageView 
        android:src="@drawable/ic_launcher"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:contentDescription="@drawable/ic_launcher"/>
    
    <TextView 
        android:id="@+id/list_item_textview"
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:paddingLeft="20dp"/>

</LinearLayout>

如果图片是直接引用drawable中的图片资源，可以直接在TextView中定义，

可直接替换为：

<?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="wrap_content"
    android:orientation="horizontal" >
    
    <TextView 
        android:id="@+id/list_item_textview"
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:drawableLeft="@drawable/ic_launcher"
        android:drawablePadding="20dp"/>

</LinearLayout>