操作系统相册的工具类

public class GalleryUtil {
       /**
     * 系统相册的过滤关键词
     */
    private static final String[] SYSTEM_GALLERY_FILTERS = new String[]{"gallery", "photo", "picture"};

    /**
     * 打开系统图片相册
     */
    public static void openSystemImageGallery(Activity activity, int reqCode) {
        openSystemGallery(activity, reqCode, "image/*");
    }

    /**
     * 打开系统视频相册
     */
    public static void openSystemVideoGallery(Activity activity, int reqCode) {
        openSystemGallery(activity, reqCode, "video/*");
    }

    /**
     * 打开系统相册
     *
     * @param type image/*   video/*
     */
    public static void openSystemGallery(Activity activity, int reqCode, String type) {
        try {
            Intent intent = new Intent(Intent.ACTION_PICK, null);
            intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, type);
            onlyUseSystemGallery(activity, intent);
            activity.startActivityForResult(intent, reqCode);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static void onlyUseSystemGallery(Context context, Intent intent) {
        if (context == null || intent == null) {
            return;
        }
        try {
            //查询系统相册包名
            PackageManager packageManager = context.getPackageManager();
            if (packageManager == null) {
                return;
            }
            List<ResolveInfo> infos = packageManager.queryIntentActivities(intent, 0);
            if (infos == null || infos.size() == 0) {
                return;
            }
            final Set<String> backupPackages = new HashSet<>();
            for (ResolveInfo resolveInfo : infos) {
                if (resolveInfo == null) {
                    continue;
                }
                ApplicationInfo applicationInfo = resolveInfo.activityInfo.applicationInfo;
                if (applicationInfo != null && applicationInfo.packageName != null
                        && (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
                    backupPackages.add(applicationInfo.packageName);
                }
            }

            for (String pkg : backupPackages) {
                if (backupPackages.size() == 1) {
                    // 如果包名只有一个，则直接使用
                    intent.setPackage(pkg);
                    return;
                } else {
                    // 如果包名有多个，则根据关键字再次筛选一次
                    for (String filter : SYSTEM_GALLERY_FILTERS) {
                        if (pkg.contains(filter)) {
                            intent.setPackage(pkg);
                            return;
                        }
                    }
                }
            }
           
        } catch (Throwable t) {
        
        }
    }
}