VideoUtils.java

package com.youth.xf.utils;

import android.annotation.TargetApi;
import android.graphics.Bitmap;
import android.media.MediaMetadataRetriever;
import android.media.ThumbnailUtils;
import android.os.Build;
import android.provider.MediaStore;

import java.util.HashMap;

public class VideoUtils {

    /**
     * 获取视频缩略图，放在线程中执行，比较耗时
     * @param url 网络连接
     * @param width 图片宽度
     * @param height 突破高度
     * @return
     */
    @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
    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) {
        } catch (RuntimeException ex) {
        } finally {
            try {
                retriever.release();
            } catch (RuntimeException ex) {
            }
        }
        if (kind == MediaStore.Images.Thumbnails.MICRO_KIND && bitmap != null) {
            bitmap = ThumbnailUtils.extractThumbnail(bitmap, width, height,
                    ThumbnailUtils.OPTIONS_RECYCLE_INPUT);
        }
        return bitmap;
    }
}