I'm building an Android app and I'm new on building the UI on an .xml file. I've built a simple layout but I think that is not optimize very well.
This component is a search layout with 2 edittext and 2 buttons.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout_search"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<RelativeLayout
android:id="@+id/LayoutSetSearch_From"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_alignParentLeft="true"
android:text="from:"
android:gravity="start"
android:maxLines="1"
android:layout_alignBottom="@+id/txtsetSearch_From"/>
<EditText
android:id="@+id/txtsetSearch_From"
android:layout_width="120dip"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:layout_gravity="center_vertical"
android:layout_marginRight="10dp"
android:singleLine="true"
android:gravity="center"
android:clickable="false"
android:cursorVisible="false"
android:focusable="false"
android:focusableInTouchMode="false"
android:inputType="text"/>
</RelativeLayout>
<RelativeLayout
android:id="@+id/LayoutSetSearch_To"
android:layout_below="@+id/LayoutSetSearch_From"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dip">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_alignParentLeft="true"
android:text="to:"
android:gravity="start"
android:maxLines="1"
android:layout_alignBottom="@+id/txtsetSearch_To"/>
<EditText
android:id="@+id/txtsetSearch_To"
android:layout_width="120dip"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:layout_gravity="center_vertical"
android:layout_marginRight="10dp"
android:singleLine="true"
android:gravity="center"
android:clickable="false"
android:cursorVisible="false"
android:focusable="false"
android:focusableInTouchMode="false"
android:inputType="text"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="48dp"
android:layout_below="@+id/LayoutSetSearch_To"
android:layout_marginTop="15dp">
<View
android:layout_width="match_parent"
android:layout_height="1dip"
android:layout_marginLeft="4dip"
android:layout_marginRight="4dip"
android:background="?android:attr/dividerVertical"
android:layout_alignParentTop="true"/>
<View
android:layout_width="match_parent"
android:layout_height="1dip"
android:layout_marginLeft="4dip"
android:layout_marginRight="4dip"
android:background="?android:attr/dividerVertical"
android:layout_alignParentBottom="true"/>
<View
android:id="@+id/ViewColorPickerHelper"
android:layout_width="1dip"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:layout_marginBottom="4dip"
android:layout_marginTop="4dip"
android:background="?android:attr/dividerVertical"
android:layout_centerHorizontal="true"/>
<Button
android:id="@+id/btn_search_summary"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="start"
android:layout_alignParentLeft="true"
android:layout_toLeftOf="@id/ViewColorPickerHelper"
android:background="?android:attr/selectableItemBackground"
android:layout_alignParentBottom="true" />
<Button
android:id="@+id/btn_reset_search_summary"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:background="?android:attr/selectableItemBackground"
android:text="reset"
android:layout_alignParentBottom="true"
android:layout_toRightOf="@id/ViewColorPickerHelper"/>
</RelativeLayout>
</RelativeLayout>