更改edittext的边框颜色

<EditText
    android:id="@+id/editText"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/edittext_border" />

<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <stroke android:color="#FF0000" />
</shape>

EditText editText = findViewById(R.id.editText);
editText.setBackground(getResources().getDrawable(R.drawable.edittext_border));