实习入职第十三天：根据url获取视频的第一帧图像

public static Bitmap createVideoThumbnail(String url, int width, int height) {
Bitmap bitmap = null;
MediaMetadataRetriever retriever = new MediaMetadataRetriever();
int kind = MediaStore.Video.Thumbnails.MINI_KIND;
try {
if (Build.VERSION.SDK_INT >= 14) {
retriever.setDataSource(url, new HashMap<String, String>());
} else {
retriever.setDataSource(url);
}
bitmap = retriever.getFrameAtTime();
} catch (IllegalArgumentException ex) {
// Assume this is a corrupt video file
} catch (RuntimeException ex) {
// Assume this is a corrupt video file.
} finally {
try {
retriever.release();
} catch (RuntimeException ex) {
// Ignore failures while cleaning up.
}
}
if (kind == Images.Thumbnails.MICRO_KIND && bitmap != null) {
bitmap = ThumbnailUtils.extractThumbnail(bitmap, width, height,
ThumbnailUtils.OPTIONS_RECYCLE_INPUT);
}
return bitmap;
}