Update ROOM and Biometrics libraries

app/build.gradle

@@ -175,12 +175,12 @@ dependencies {
     def material_version = "1.1.0-alpha09"
     def browser_version = "1.0.0"
     def lifecycle_version = "2.1.0-rc01"
-    def room_version = "2.1.0"
+    def room_version = "2.2.0-beta01"
     def paging_version = "2.1.0"
     def preference_version = "1.1.0-rc01"
     def work_version = "2.2.0"
     def exif_version = "1.1.0-beta01"
-    def biometric_version = "1.0.0-alpha04"
+    def biometric_version = "1.0.0-beta01"
     def billingclient_version = "2.0.3"
     def javamail_version = "1.6.3"
     def jsoup_version = "1.12.1"

app/src/main/java/androidx/room/RoomDatabase.java

@@ -21,6 +21,7 @@ import android.app.ActivityManager;
 import android.content.Context;
 import android.database.Cursor;
 import android.os.Build;
+import android.os.CancellationSignal;
 import android.os.Looper;
 import android.util.Log;
 
@@ -294,7 +295,8 @@ public abstract class RoomDatabase {
      * @param args  The bind arguments for the placeholders in the query
      * @return A Cursor obtained by running the given query in the Room database.
      */
-    public Cursor query(String query, @Nullable Object[] args) {
+    @NonNull
+    public Cursor query(@NonNull String query, @Nullable Object[] args) {
         return mOpenHelper.getWritableDatabase().query(new SimpleSQLiteQuery(query, args));
     }
 
@@ -304,10 +306,27 @@ public abstract class RoomDatabase {
      * @param query The Query which includes the SQL and a bind callback for bind arguments.
      * @return Result of the query.
      */
-    public Cursor query(SupportSQLiteQuery query) {
+    @NonNull
+    public Cursor query(@NonNull SupportSQLiteQuery query) {
+        return query(query, null);
+    }
+
+    /**
+     * Wrapper for {@link SupportSQLiteDatabase#query(SupportSQLiteQuery)}.
+     *
+     * @param query The Query which includes the SQL and a bind callback for bind arguments.
+     * @param signal The cancellation signal to be attached to the query.
+     * @return Result of the query.
+     */
+    @NonNull
+    public Cursor query(@NonNull SupportSQLiteQuery query, @Nullable CancellationSignal signal) {
         assertNotMainThread();
         assertNotSuspendingTransaction();
-        return mOpenHelper.getWritableDatabase().query(query);
+        if (signal != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+            return mOpenHelper.getWritableDatabase().query(query, signal);
+        } else {
+            return mOpenHelper.getWritableDatabase().query(query);
+        }
     }
 
     /**

app/src/main/java/androidx/room/util/DBUtil.java

@@ -19,8 +19,10 @@ package androidx.room.util;
 import android.database.AbstractWindowedCursor;
 import android.database.Cursor;
 import android.os.Build;
+import android.os.CancellationSignal;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.annotation.RestrictTo;
 import androidx.room.RoomDatabase;
 import androidx.sqlite.db.SupportSQLiteDatabase;
@@ -53,10 +55,32 @@ public class DBUtil {
      * @param sqLiteQuery The query to perform.
      * @param maybeCopy   True if the result cursor should maybe be copied, false otherwise.
      * @return Result of the query.
+     *
+     * @deprecated This is only used in the generated code and shouldn't be called directly.
      */
+    @Deprecated
     @NonNull
     public static Cursor query(RoomDatabase db, SupportSQLiteQuery sqLiteQuery, boolean maybeCopy) {
-        final Cursor cursor = db.query(sqLiteQuery);
+        return query(db, sqLiteQuery, maybeCopy, null);
+    }
+
+    /**
+     * Performs the SQLiteQuery on the given database.
+     * <p>
+     * This util method encapsulates copying the cursor if the {@code maybeCopy} parameter is
+     * {@code true} and either the api level is below a certain threshold or the full result of the
+     * query does not fit in a single window.
+     *
+     * @param db          The database to perform the query on.
+     * @param sqLiteQuery The query to perform.
+     * @param maybeCopy   True if the result cursor should maybe be copied, false otherwise.
+     * @param signal      The cancellation signal to be attached to the query.
+     * @return Result of the query.
+     */
+    @NonNull
+    public static Cursor query(@NonNull RoomDatabase db, @NonNull SupportSQLiteQuery sqLiteQuery,
+            boolean maybeCopy, @Nullable CancellationSignal signal) {
+        final Cursor cursor = db.query(sqLiteQuery, signal);
         if (maybeCopy && cursor instanceof AbstractWindowedCursor) {
             AbstractWindowedCursor windowedCursor = (AbstractWindowedCursor) cursor;
             int rowsInCursor = windowedCursor.getCount(); // Should fill the window.
@@ -132,6 +156,20 @@ public class DBUtil {
         }
     }
 
+    /**
+     * CancellationSignal is only available from API 16 on. This function will create a new
+     * instance of the Cancellation signal only if the current API > 16.
+     *
+     * @return A new instance of CancellationSignal or null.
+     */
+    @Nullable
+    public static CancellationSignal createCancellationSignal() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+            return new CancellationSignal();
+        }
+        return null;
+    }
+
     private DBUtil() {
     }
 }