/**

      * 分享信息到朋友

      *

      * @param file

      *    假如图片的路径为path，那么file = new File(path);

      */

     private void shareToFriend(File file) {

         Intent intent = new Intent();

         ComponentName componentName = new ComponentName("com.tencent.mm",

                 "com.tencent.mm.ui.tools.ShareImgUI");

         intent.setComponent(componentName);

         intent.setAction(Intent.ACTION_SEND);

         intent.setType("image/*");

         intent.putExtra(Intent.EXTRA_TEXT, "测试微信");

         intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));

         startActivity(intent);

     }

     /**

      * 分享信息到朋友圈

      *

      * @param file

      *            ，假如图片的路径为path，那么file = new File(path);

      */

     private void shareToTimeLine(File file) {

         Intent intent = new Intent();

         ComponentName componentName = new ComponentName("com.tencent.mm",

                 "com.tencent.mm.ui.tools.ShareToTimeLineUI");

         intent.setComponent(componentName);

         intent.setAction(Intent.ACTION_SEND);

         intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));

         intent.setType("image/*");

         startActivity(intent);

     }