android - Position Video Inside a VideoView

Question

So I have extended VideoView's onMeasure to scale up the video to fit inside a fullscreen view.

here is how:

public void setVideoAspect(int w,int h){
    wVideo=w;
    hVideo=h;
    onMeasure(w, h);
}
 @Override
 protected void onMeasure (int widthMeasureSpec, int heightMeasureSpec)
 {
     super.onMeasure(widthMeasureSpec, heightMeasureSpec);
     if(wVideo!=0 && hVideo!=0)
     setMeasuredDimension(wVideo,hVideo);
 }

I call setVideoAspect() with the display metrics (width, hight) of the screen. The problem is that this method stretches the video to fit inside the screen. I want to be able to keep the aspect ratio. (I have 4:3 video and 3:2 screen size.) I used the folowing code to give the retained ratio measurements to the view:

int height =  (int) (metrics.widthPixels*3/(float)4);
                        int width=  metrics.widthPixels;   
                        mVideoView.setVideoAspect(width,height);

So this does the job but there is an issue: it gives me a 4:3 video with the width of the screen and scales the height correctly, but it doesn't center the video. (It just crops the bottom part of the video instead of the top and the bottom equally.) I have a relative layout containing the VideoView with the gravity of the VideoView set to center.

Answer 1

Try using a FrameLayout instead. I'm not sure why, but if I use a Linear or Relative in my code it won't center, but FrameLayout does. Here is the XML that fit my video to the screen, preserving the ratio and centering it:

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/bg">
    <!-- Video player -->
    <VideoView
        android:id="@+id/surface_view"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_gravity="center"/>
</FrameLayout>