.titleGravity(GravityEnum.CENTER)
.customView(R.layout.dialog_down, false)
.cancelable(true)
.autoDismiss(false)
.positiveText("Ver")
<BUG>.negativeText("Cancelar")
.callback(new MaterialDialog.ButtonCallback() {</BUG>
@Override
public void onPositive(MaterialDialog dialog) {
super.onPositive(dialog);

.titleGravity(GravityEnum.CENTER)
.customView(R.layout.dialog_down, false)
.cancelable(true)
.autoDismiss(false)
.positiveText("Descargar")
.negativeText("Cancelar")
.backgroundColor(ThemeUtils.isAmoled(context) ? ColorsRes.Prim(context) : ColorsRes.Blanco(context))
.callback(new MaterialDialog.ButtonCallback() {
@Override
public void onPositive(MaterialDialog dialog) {
super.onPositive(dialog);
