Android raw 目录下视频的缩略图的获取
以下代码用于获取 Android raw目录下视频文件的缩略图:
/** * 获取 raw 下 指定视频文件的缩略图 * @param aVideoName * @return */ private Drawable getThumbnail(String aVideoName) { Drawable ret = null; int id = 0; try { id = R.raw.class.getDeclaredField(aVideoName).getInt(this); Uri videoURI = Uri.parse("android.resource://" + this.getPackageName() + "/" + id); ret = getThumbnail(videoURI); } catch ( IllegalAccessException aE ) { aE.printStackTrace(); } catch ( NoSuchFieldException aE ) { aE.printStackTrace(); } return ret; } private Drawable getThumbnail(Uri aVideoUri) { MediaMetadataRetriever retriever = new MediaMetadataRetriever(); retriever.setDataSource(this, aVideoUri); Bitmap bitmap = retriever .getFrameAtTime(1*1000*1000, MediaMetadataRetriever.OPTION_PREVIOUS_SYNC); Drawable drawable = new BitmapDrawable(getResources(), bitmap); return drawable; }
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