Android ApiDemos示例解析(139):Views->Layouts->Baseline->Nested Example 2

本例和上例类似，只是将其中一个子LinearLayout的orientation从vertical 改成horizontal，同样去掉android:layout_gravity=”center_vertical”

<LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android”

android:orientation=”horizontal”

android:layout_width=”match_parent”

android:layout_height=”match_parent”>

<TextView

android:layout_width=”wrap_content”

android:layout_height=”wrap_content”

android:layout_marginRight=”3dip”

android:text=”@string/baseline_nested_1_label” />

<!– We want the middle textview of this vertical linear layout to

be baseline aligned with the others.–>

<LinearLayout

android:orientation=”vertical”

android:baselineAlignedChildIndex=”1″

android:layout_width=”wrap_content”

android:layout_height=”wrap_content”

>

<ImageView

android:layout_width=”wrap_content”

android:layout_height=”wrap_content”

android:src=”@drawable/arrow_up_float”/>

<TextView

android:layout_width=”wrap_content”

android:layout_height=”wrap_content”

android:layout_marginRight=”5dip”

android:text=”@string/baseline_nested_1_label” />

<ImageView

android:layout_width=”wrap_content”

android:layout_height=”wrap_content”

android:src=”@drawable/arrow_down_float”/>

</LinearLayout>

<!– We want the third index textview of this vertical linear layout to

be baseline aligned with the others.–>

<LinearLayout

android:orientation=”horizontal”

android:baselineAlignedChildIndex=”2″

android:layout_width=”wrap_content”

android:layout_height=”wrap_content”>

<ImageView

android:layout_width=”wrap_content”

android:layout_height=”wrap_content”

android:src=”@drawable/arrow_up_float”/>

<ImageView

android:layout_width=”wrap_content”

android:layout_height=”wrap_content”

android:src=”@drawable/arrow_up_float”/>

<TextView

android:layout_width=”wrap_content”

android:layout_height=”wrap_content”

android:layout_marginRight=”5dip”

android:text=”@string/baseline_nested_1_label” />

</LinearLayout>

<TextView

android:layout_width=”wrap_content”

android:layout_height=”wrap_content”

android:textSize=”20sp”

android:text=”@string/baseline_nested_1_label” />

</LinearLayout>