使用6个按钮从此布局中删除“填充”空间

Question

Im working on a android app wich one of the activity will have the following layout (cant embed images, new account):

XML Code of this activity:

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.bugdroid.sintomas1.Motivo_sintoma">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:layout_below="@+id/linearLayout3"
    android:layout_alignParentStart="true">

    <Button
        android:layout_width="0dp"
        android:layout_weight="1"
        android:layout_height="match_parent" />

    <Button
        android:layout_width="0dp"
        android:layout_weight="1"
        android:layout_height="123dp" />

    <Button
        android:layout_width="0dp"
        android:layout_weight="1"
        android:layout_height="match_parent" />

</LinearLayout>

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:id="@+id/linearLayout2">

    <Button
        android:layout_width="0dp"
        android:layout_weight="1"
        android:layout_height="match_parent" />

    <Button
        android:layout_width="0dp"
        android:layout_weight="1"
        android:layout_height="123dp" />

    <Button
        android:layout_width="0dp"
        android:layout_weight="1"
        android:layout_height="match_parent" />

</LinearLayout>
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:layout_below="@+id/linearLayout2"
    android:layout_alignParentStart="true"
    android:id="@+id/linearLayout3">

    <Button
        android:layout_width="0dp"
        android:layout_weight="1"
        android:layout_height="match_parent" />

    <Button
        android:layout_width="0dp"
        android:layout_weight="1"
        android:layout_height="123dp" />

    <Button
        android:layout_width="0dp"
        android:layout_weight="1"
        android:layout_height="match_parent" />

</LinearLayout>

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="New Button"
    android:id="@+id/button9"
    android:layout_marginRight="0dip"
    android:layout_alignParentBottom="true"
    android:layout_alignParentEnd="true"
    android:layout_toEndOf="@+id/button10" />

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="New Button"
    android:id="@+id/button10"
    android:layout_alignTop="@+id/button9"
    android:layout_alignParentStart="true" />

I want the layout to look this mookup:

2 : I also want to remove it on the buttons at the bottom and join them into one as see on the image.

Answer 1

The issue is in Button background. Default background is the following (file btn_default.xml in platform resources):

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_window_focused="false" android:state_enabled="true"
        android:drawable="@drawable/btn_default_normal" />
    <item android:state_window_focused="false" android:state_enabled="false"
        android:drawable="@drawable/btn_default_normal_disable" />
    <item android:state_pressed="true" 
        android:drawable="@drawable/btn_default_pressed" />
    <item android:state_focused="true" android:state_enabled="true"
        android:drawable="@drawable/btn_default_selected" />
    <item android:state_enabled="true"
        android:drawable="@drawable/btn_default_normal" />
    <item android:state_focused="true"
        android:drawable="@drawable/btn_default_normal_disable_focused" />
    <item
         android:drawable="@drawable/btn_default_normal_disable" />
</selector>

All items are 9patches. So, I would suggest to use Your own backgrounds (or modify platform backgrounds and remove paddings using 9patch tool