Make PINs work with password managers.

app/build.gradle

@@ -275,6 +275,7 @@ dependencies {
     implementation "androidx.camera:camera-camera2:1.0.0-beta01"
     implementation "androidx.camera:camera-lifecycle:1.0.0-beta01"
     implementation "androidx.concurrent:concurrent-futures:1.0.0"
+    implementation "androidx.autofill:autofill:1.0.0"
 
     implementation('com.google.firebase:firebase-messaging:17.3.4') {
         exclude group: 'com.google.firebase', module: 'firebase-core'

app/src/main/java/org/thoughtcrime/securesms/lock/SignalPinReminderDialog.java

@@ -21,7 +21,9 @@ import android.widget.TextView;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
+import androidx.autofill.HintConstants;
 import androidx.core.app.DialogCompat;
+import androidx.core.view.ViewCompat;
 
 import com.google.android.material.textfield.TextInputLayout;
 
@@ -72,6 +74,7 @@ public final class SignalPinReminderDialog {
         ServiceUtil.getInputMethodManager(pinEditText.getContext()).showSoftInput(pinEditText, 0);
       }
     });
+    ViewCompat.setAutofillHints(pinEditText, HintConstants.AUTOFILL_HINT_PASSWORD);
 
     switch (SignalStore.pinValues().getKeyboardType()) {
       case NUMERIC:

app/src/main/java/org/thoughtcrime/securesms/lock/v2/ConfirmKbsPinFragment.java

@@ -4,11 +4,14 @@ import android.animation.Animator;
 import android.app.Activity;
 import android.content.Intent;
 import android.view.View;
+import android.view.autofill.AutofillManager;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.RawRes;
 import androidx.appcompat.app.AlertDialog;
+import androidx.autofill.HintConstants;
 import androidx.core.content.ContextCompat;
+import androidx.core.view.ViewCompat;
 import androidx.lifecycle.ViewModelProviders;
 
 import com.airbnb.lottie.LottieAnimationView;
@@ -39,6 +42,7 @@ public class ConfirmKbsPinFragment extends BaseKbsPinFragment<ConfirmKbsPinViewM
     } else {
       initializeViewStatesForPinCreate();
     }
+    ViewCompat.setAutofillHints(getInput(), HintConstants.AUTOFILL_HINT_NEW_PASSWORD);
   }
 
   @Override

app/src/main/java/org/thoughtcrime/securesms/lock/v2/CreateKbsPinFragment.java

@@ -1,7 +1,11 @@
 package org.thoughtcrime.securesms.lock.v2;
 
+import android.view.View;
+
 import androidx.annotation.NonNull;
 import androidx.annotation.PluralsRes;
+import androidx.autofill.HintConstants;
+import androidx.core.view.ViewCompat;
 import androidx.lifecycle.ViewModelProviders;
 import androidx.navigation.Navigation;
 
@@ -21,6 +25,7 @@ public class CreateKbsPinFragment extends BaseKbsPinFragment<CreateKbsPinViewMod
 
     getLabel().setText(getPinLengthRestrictionText(R.plurals.CreateKbsPinFragment__pin_must_be_at_least_digits));
     getConfirm().setEnabled(false);
+    ViewCompat.setAutofillHints(getInput(), HintConstants.AUTOFILL_HINT_NEW_PASSWORD);
   }
 
   private void initializeViewStatesForPinChange(boolean isForgotPin) {

app/src/main/java/org/thoughtcrime/securesms/pin/PinRestoreEntryFragment.java

@@ -17,6 +17,8 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.StringRes;
 import androidx.appcompat.app.AlertDialog;
+import androidx.autofill.HintConstants;
+import androidx.core.view.ViewCompat;
 import androidx.fragment.app.Fragment;
 import androidx.lifecycle.ViewModelProviders;
 import androidx.navigation.Navigation;
@@ -87,6 +89,7 @@ public class PinRestoreEntryFragment extends Fragment {
       }
       return false;
     });
+    ViewCompat.setAutofillHints(pinEntry, HintConstants.AUTOFILL_HINT_PASSWORD);
 
     enableAndFocusPinEntry();
 

app/witness-verifications.gradle

@@ -27,6 +27,9 @@ dependencyVerification {
         ['androidx.asynclayoutinflater:asynclayoutinflater:1.0.0',
          'f7eab60c57addd94bb06275832fe7600611beaaae1a1ec597c231956faf96c8b'],
 
+        ['androidx.autofill:autofill:1.0.0',
+         'c9468f56e05006ea151a426c54957cd0799b8b83a579d2846dd22061f33e5ecd'],
+
         ['androidx.camera:camera-camera2:1.0.0-beta01',
          '02e15ad76153d09adcd6631627960707a8786333a8276d05dcbefc2bfe4ef5a1'],