uses
Androidapi.JNI.GraphicsContentViewText, FMX.Helpers.Android;
procedure TForm3.Button1Click(Sender: TObject);
var Intent: JIntent;
begin
Intent := TJIntent.Create;
Intent.setAction(TJIntent.JavaClass.ACTION_VIEW);
Intent.setData(StrToJURI('http://www.clubdelphi.com'));
SharedActivity.startActivity(Intent);
end;