Android 如何实现本地图片直接分享到微信、来往、QQ等，直接分享图片到指定应用

例如：要在app中直接分享图片到微信、交往等，而不调用他们的sdk

直接贴代码以下;

	public void shareImage(Bitmap bitmap) {
		try {
			Uri uriToImage = Uri.parse(MediaStore.Images.Media.insertImage(
					mContext.getContentResolver(), bitmap, null, null));
			Intent shareIntent = new Intent();
			shareIntent.setAction(Intent.ACTION_SEND);
			shareIntent.putExtra(Intent.EXTRA_STREAM, uriToImage);
			shareIntent.setType("image/*");
			// 遍历所有支撑发送图片的运用。找到须要的运用
			PackageManager packageManager = mContext.getPackageManager();
			List<ResolveInfo> resolveInfoList = packageManager
					.queryIntentActivities(shareIntent,
							PackageManager.GET_INTENT_FILTERS);
			ComponentName componentName = null;
			for (int i = 0; i < resolveInfoList.size(); i++) {
				if (TextUtils.equals(
						resolveInfoList.get(i).activityInfo.packageName,
						YouNeedAppPackageName)) {
					componentName = new ComponentName(
							resolveInfoList.get(i).activityInfo.packageName,
							resolveInfoList.get(i).activityInfo.name);
					break;
				}
			}
			// 已安装**
			if (null != componentName) {
				shareIntent.setComponent(componentName);
				mContext.startActivity(shareIntent);
			} else {
				ContextUtil.getInstance().showToastMsg("请先安装**");
			}
		} catch (Exception e) {
			ContextUtil.getInstance().showToastMsg("分享图片到**失败");
		}
	}