This tag and its children can be replaced by one and a compound drawable

类似下边这样的布局，

<LinearLayout android:id="@+id/li1" android:layout_width="wrap_content" android:layout_height="wrap_content"
		android:layout_centerInParent="true" android:orientation="vertical" android:gravity="center">
		<ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/no_comments"/>
		<TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="无评论"
			android:textSize="16sp" android:textColor="#FFCACED1" />
	</LinearLayout>

可以换成

<TextView android:id="@+id/tv1" android:layout_width="wrap_content" android:layout_height="wrap_content"
		android:layout_centerInParent="true" android:orientation="vertical" android:gravity="center"
		android:text="无评论" android:textSize="16sp" android:textColor="#FFCACED1" android:drawableTop="@drawable/no_comments"/>