Add fingerprint name to delete button content description.

Test: atest FingerprintPreferenceTest
Bug: 308671557

Change-Id: I5a7d402835124a50fd1268745eca1e28c865dc18

src/com/android/settings/biometrics/fingerprint/FingerprintSettings.java

@@ -1399,13 +1399,15 @@ public class FingerprintSettings extends SubSettings {
             super.onBindViewHolder(view);
             mView = view.itemView;
             mDeleteView = view.itemView.findViewById(R.id.delete_button);
-            mDeleteView.setOnClickListener(new View.OnClickListener() {
+            if (mFingerprint != null) {
-                @Override
+                mDeleteView.setContentDescription(
-                public void onClick(View v) {
+                        mDeleteView.getContentDescription()
+                                + " " + mFingerprint.getName().toString());
+            }
+            mDeleteView.setOnClickListener(v -> {
                 if (mOnDeleteClickListener != null) {
                     mOnDeleteClickListener.onDeleteClick(FingerprintPreference.this);
                 }
-                }
             });
         }
     }

tests/robotests/src/com/android/settings/biometrics/fingerprint/FingerprintPreferenceTest.java

@@ -21,6 +21,7 @@ import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.Mockito.verify;
 
 import android.content.Context;
+import android.hardware.fingerprint.Fingerprint;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.widget.FrameLayout;
@@ -59,6 +60,21 @@ public class FingerprintPreferenceTest {
         assertThat(mPreference.getSecondTargetResId()).isEqualTo(R.layout.preference_widget_delete);
     }
 
+    @Test
+    public void deleteContentDescription() {
+        final FrameLayout layout = new FrameLayout(mContext);
+        LayoutInflater.from(mContext).inflate(mPreference.getSecondTargetResId(), layout, true);
+        final String fingerprintName = "fingerprint test";
+        mPreference.setFingerprint(new Fingerprint(fingerprintName, 0, 0));
+        final PreferenceViewHolder holder = PreferenceViewHolder.createInstanceForTests(layout);
+        mPreference.onBindViewHolder(holder);
+
+        final View view = layout.findViewById(R.id.delete_button);
+        String expectedContentDescription =
+                mContext.getString(R.string.delete) + " " + fingerprintName;
+        assertThat(view.getContentDescription().toString()).isEqualTo(expectedContentDescription);
+    }
+
     @Test
     public void bindAndClickDeleteButton_shouldInvokeOnDeleteListener() {
         final FrameLayout layout = new FrameLayout(mContext);