Embed video with Ionic 2 on android

Hello Ionic 2 team.
I have created video player with Ionic 2.
The video files are local there and I used both html5 video tag and ifram to play video.
The ios version is fine, but the android version is awful.
The android version is not display the video at all.
I sent long time to fix that, but I don’t fix that yet.
Please help me.
How can I play local video file on android.
Thank you always.