RelativeLayout背景可绘制重叠内容

Question

I have a 9-patch drawable(date_time). And i want to place this drawable behind Relative Layout content, so all child views should be drawn on top of this image. Here is xml Layout:

<RelativeLayout
            android:layout_width="wrap_content"
            android:layout_height="23dp"
            android:layout_below="@id/tv_map_address"
            android:layout_marginTop="11dp"
            android:layout_marginBottom="12dp"
            android:background="@drawable/date_time">

            <ImageView
                android:id="@+id/iv_map_distance"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="10dp"
                android:layout_centerVertical="true"
                android:src="@drawable/ic_map_distance"/>

            <TextView
                android:id="@+id/tv_map_distance"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="10dp"
                android:layout_toRightOf="@id/iv_map_distance"
                android:layout_centerVertical="true"
                android:textColor="@color/white"
                android:textSize="11sp"
                android:text="2,7 км"
                fontPath="fonts/Roboto-Medium.ttf"/>

            <ImageView
                android:id="@+id/iv_map_path"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="10dp"
                android:layout_toRightOf="@id/tv_map_distance"
                android:layout_centerVertical="true"
                android:src="@drawable/ic_map_path"/>

            <TextView
                android:id="@+id/tv_map_path"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="10dp"
                android:layout_toRightOf="@id/iv_map_path"
                android:layout_centerVertical="true"
                android:textColor="@color/white"
                android:textSize="11sp"
                android:text="3,2 км"
                fontPath="fonts/Roboto-Medium.ttf"/>

        </RelativeLayout>

But somehow this background overlaps all child content. Here is shown what is happening.

But if i replace

android:background="@drawable/date_time"

to

android:background="#0000FF"

Everything is fine and the output is next:

Can you explain me what i am doing wrong?

Update: Here is my 9-patch drawable.

Answer 1

Exactly as I thought your content indicators are incorrect (unless you wanna introduce such a content padding with your 9-patch). Try this instead:

Right and bottom guides, determine which part (or how much) of your drawable should be occupied by your content. You've set this region to really small space, and set a fixed height of your Layout . In other words: 9-patch forced your Layout to let its children occupy only a small, region of your view (which was limited by you not letting your Layout stretch).