我目前正致力于在VideoView中播放视频(.mp4文件在两个安卓平板电脑中运行良好)。首先我使用了VideoView,但设备(EKEN M003S)全屏播放视频,而不是VideoView,我将宽度和高度设置为272 x 153 dp。所以我尝试制作一个扩展的VideoView类来覆盖onMeasure()和changeVideoSize()。像这样:
public class EkenVideoView extends VideoView {
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
//Log.i("@@@@", "onMeasure");
int width = getDefaultSize(mVideoWidth, widthMeasureSpec);
int height = getDefaultSize(mVideoHeight, heightMeasureSpec);
if (mVideoWidth > 0 && mVideoHeight > 0) {
if ( mVideoWidth * height > width * mVideoHeight ) {
//Log.i("@@@", "image too tall, correcting");
height = width * mVideoHeight / mVideoWidth;
} else if ( mVideoWidth * height < width * mVideoHeight ) {
//Log.i("@@@", "image too wide, correcting");
width = height * mVideoWidth / mVideoHeight;
} else {
//Log.i("@@@", "aspect ratio is correct: " +
//width+"/"+height+"="+
//mVideoWidth+"/"+mVideoHeight);
}
}
if (screenMode == DisplayMode.ORIGINAL) {
if (mVideoWidth > 0 && mVideoHeight > 0) {
if ( mVideoWidth * height > width * mVideoHeight ) {
// video height exceeds screen, shrink it
height = width * mVideoHeight / mVideoWidth;
} else if ( mVideoWidth * height < width * mVideoHeight ) {
// video width exceeds screen, shrink it
width = height * mVideoWidth / mVideoHeight;
} else {
// aspect ratio is correct
}
}
}
else if (screenMode == DisplayMode.FULL_SCREEN) {
// just use the default screen width and screen height
}
else if (screenMode == DisplayMode.ZOOM) {
// zoom video
if (mVideoWidth > 0 && mVideoHeight > 0 && mVideoWidth < width) {
height = mVideoHeight * width / mVideoWidth;
}
}
//Log.i("@@@@@@@@@@", "setting size: " + width + 'x' + height);
setMeasuredDimension(272, 153);
}
public void changeVideoSize(int width, int height)
{
mVideoWidth = width;
mVideoHeight = height;
// not sure whether it is useful or not but safe to do so
getHolder().setFixedSize(272, 153);
requestLayout();
invalidate(); // very important, so that onMeasure will be triggered
}
我输入宽度272和高度153以强制.mp4视频的宽度和高度为该大小,但EKEN M003S继续以全屏模式播放视频。因此,当我运行应用程序时,一切正常,视频在所有其他视图下方的图层上以全屏模式播放,使活动半透明,其下方的视频。
除了EKEN M003S,我确信某些设备还具有强制视频在全屏播放的功能,并且还有一种方法可以覆盖默认设置。如果有办法,请教我如何做。谢谢。
答案 0 :(得分:1)
http://clseto.mysinablog.com/index.php?op=ViewArticle&articleId=2992625
我在Asus TF 101(1280x800 res)上测试了这段代码,视频以640x480运行。尝试在XML文件和changeVideoSize()方法中设置维度,尝试设置screenMode = DisplayMode.ORIGINAL