Keyboard is blocking my edit text - android-studio

Question

I don't know why the keyboard is blocking the space where I can type. My guess is that it is a layout issue, since it kind of works when I have an action bar enabled, but I don't want the action bar. And yes I've tried going into manifest and put android:windowSoftInputMode="adjustPan"(also resize, stateAlwaysHidden). I looked at most of the forums relating to this problem. Also, to mention that the username is located in the bottom half of the app.
<EditText
android:id="#+id/username"
android:layout_width="250dp"
android:layout_height="48dp"
android:layout_marginBottom="8dp"
android:alpha="0.65"
android:background="#drawable/sign_in_button"
android:ems="10"
android:enabled="false"
android:hint="#string/username"
android:inputType="textPersonName"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:textAlignment="textStart"
android:textColor="#color/buttonTextColor"
android:textColorHint="#color/buttonTextColor"
android:visibility="invisible"
app:layout_constraintBottom_toTopOf="#+id/createAccount"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<EditText
android:id="#+id/password"
android:layout_width="250dp"
android:layout_height="48dp"
android:layout_marginBottom="9dp"
android:alpha="0.65"
android:background="#drawable/sign_in_button"
android:ems="10"
android:enabled="false"
android:hint="#string/password"
android:inputType="textPassword"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:textAlignment="textStart"
android:textColor="#color/buttonTextColor"
android:textColorHint="#color/buttonTextColor"
android:visibility="invisible"
app:layout_constraintBottom_toTopOf="#+id/terms"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="#+id/goBack"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="16dp"
android:layout_marginTop="16dp"
android:textColor="#color/buttonTextColor"
android:visibility="invisible"
android:text="#string/goBack"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:layout_editor_absoluteY="0dp" />
<TextView
android:id="#+id/appTitle"
android:layout_width="211dp"
android:layout_height="wrap_content"
android:alpha="0.65"
android:fontFamily="cursive"
android:text="#string/app_name"
android:textAlignment="center"
android:textColor="#color/appColor"
android:textSize="36sp"
android:textStyle="bold"
app:layout_constraintBottom_toTopOf="#+id/slogan"
app:layout_constraintHorizontal_bias="0.502"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent" />
<TextView
android:id="#+id/slogan"
android:layout_width="211dp"
android:layout_height="30dp"
android:text="#string/slogan"
android:textAlignment="center"
android:textColor="#color/buttonTextColor"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintBottom_toTopOf="#+id/signIn"
android:layout_marginBottom="16dp"
tools:layout_editor_absoluteY="374dp" />
<TextView
android:id="#+id/terms"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginTop="8dp"
android:text="#string/terms"
android:textColor="#color/buttonTextColor"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/createAccount" />
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_login);
getSupportActionBar().hide();

Answer 1

Put this attribute in your activity
<activity
android:windowSoftInputMode="adjustPan"
/>
If it doesn't work put this in onCreate() method after setContentView:
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);