message: V13 androidx migration
diff: @@ -45,7 +45,6 @@ import android.os.Bundle;
  import android.os.Handler;
  import android.os.HandlerThread;
  import android.support.annotation.NonNull;
  -import android.support.v13.app.FragmentCompat;
  import android.support.v4.content.ContextCompat;
  import android.text.SpannableString;
  import android.text.SpannableStringBuilder;
  @@ -62,6 +61,7 @@ import android.widget.ListView;
  import android.widget.NumberPicker;
  import android.widget.TextView;
  import android.widget.Toast;
  +import androidx.legacy.app.FragmentCompat;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.Arrays;
  @@ -71,7 +71,6 @@ import java.util.List;
  import java.util.concurrent.Semaphore;
  import java.util.concurrent.TimeUnit;
  -
  /** Basic fragments for the Camera. */
  public class Camera2BasicFragment extends Fragment
  implements FragmentCompat.OnRequestPermissionsResultCallback {
  