how to change the default color orange when tyoping text in edittext field or press button how that color will change? any help?? this is my xml below when i run this code default orange color is appear on border of edittext and when pressing button
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#ffffff">
<TextView
android:id="@+id/txtEnterPinForTransaction"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="" />
<TextView
android:id="@+id/lblPinno"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="" />
<EditText
android:id="@+id/txtPinno"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPassword" />
<Button
android:id="@+id/btnsubmit"
style="?android:attr/buttonStyleSmall"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:text="Submit" />
<Button
android:id="@+id/clearButton"
style="?android:attr/buttonStyleSmall"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:text="Clear" />
<Button
android:id="@+id/btngoback"
style="?android:attr/buttonStyleSmall"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:text="Go Back" />