如何在Android Studio中把一个VideoView放在另一个VideoView下面？

Question

我需要创建一个视频视图，在运行时，它应该位于id为 "video1 "的视频视图下面。下面是代码。

            RelativeLayout layout = findViewById(R.id.layout);
            RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) 
            layout.getLayoutParams();
            params.addRule(RelativeLayout.BELOW, R.id.video1);
            videoView2 = new VideoView(jazz.this);
            videoView2.setLayoutParams(params);
            videoView2.setLayoutParams(new 
            FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, 200));
            layout.addView(videoView2);

Answer 1

这是你的代码。

 videoView2.setLayoutParams(params);
        videoView2.setLayoutParams(new 
        FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, 200))

你设置了两次LayoutParams...

用这个。

 VideoView v = new VideoView(context);
    RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, 200);
    layoutParams.addRule(RelativeLayout.BELOW, R.id.video1);
    v.setLayoutParams(layoutParams);
  container.addView(v);

这样就可以了，希望有人能帮你

Answer 2

你应该像这样为你的video2设置参数。

RelativeLayout layout = (RelativeLayout)findViewById(R.id.layout);
        videoView2 = new VideoView(this);
        videoView2.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT,200));
        layout.addView(videoView2);
        RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) videoView2.getLayoutParams();
        params.addRule(RelativeLayout.BELOW, R.id.video1);
        videoView2.setLayoutParams(params);

而你的video1应该有一个高度参数设置，因为videoview的测量是基于你设置的视频，从外观上看，没有定义视频路径，所以如果video1高度=wrap_content，它需要整个屏幕，没有任何约束。我有我的在xml这样的。

<VideoView
    android:id="@+id/video1"
    android:layout_width="match_parent"
    android:layout_height="300dp"
    android:layout_marginBottom="20dp"/>