Android控件之ImageView(显示图片的控件)

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

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#f0f0f0"
        android:src="@drawable/ic_launcher" />
    
    <ImageView
        android:id="@+id/imageView2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/ic_launcher" />
    
    <ImageView
        android:id="@+id/imageView3"
        android:layout_width="match_parent"
        android:layout_height="20dp"
        android:background="#f0f0f0" />

</LinearLayout>