Android round button with icon

Issue

I am trying to make a button like this Button Image but I cannot put the icon in front of the text. The button I made now looks like this button image now. So, the main problem is how could I get the icon to be near in front of the text?

This is my button shape code:

    <?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
    <corners
        android:radius="50dp"
        />
    <solid
        android:color="#00A651"
        />
    <padding
        android:left="0dp"
        android:top="0dp"
        android:right="0dp"
        android:bottom="0dp"
        />
    <size
        android:width="300dp"
        android:height="20dp"
        />
</shape>

This is the code I use to implement button into activity:

<Button
        android:id="@+id/problem"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:background="@drawable/buttonshape"
        android:drawableStart="@drawable/ic_rate_review_black_24dp"
        android:textColor="#FFFFFF"
        android:textSize="15sp"
        android:text="@string/button_problem" />

Solution

Everything worked as Muhib Pirani suggested. Thanks to him.

Button's code now looks like this:

<Button
    android:id="@+id/problem"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:background="@drawable/buttonshape"
    android:drawableStart="@drawable/ic_rate_review_black_24dp" 
    android:drawablePadding="5dp"
    android:paddingLeft="40dp"
    android:paddingRight="40dp"
    android:text="@string/button_problem"
    android:textColor="#FFFFFF"
    android:textSize="15sp" />

The ButtonShape.xml looks like this:

    <?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
    <corners
        android:radius="50dp"/>
    <solid
        android:color="#00A651"
        /> </shape>

Answered By - Simonas Petkevičius