三方分享长图、大图

这是第一次写博文，只是想找个地方积累一下自己觉得有用的，以后再次遇见这些问题的时候就可以更快的解决。
描述一下这个问题的背景，一个日志，有文字和很多张图片，以RecyclerView为载体显示，可以上下滑动。分享的时候需要将整个界面都分享出去，包括文字和图片。整个屏幕还可以截图，那超出屏幕的又该怎么去做呢，在网上找了一些代码，整理了一下。先上一张效果图（还不会像其他博友那样做动图，先上静态图）。
分享之前的图：
100, output);
int options2 = 100;
while (output.toByteArray().length > IMAGE_SIZE && options2 != 10) {
output.reset(); //清空baos
bmp.compress(Bitmap.CompressFormat.JPEG, options2, output);//这里压缩options%，把压缩后的数据存放到baos中
options2 -= 10;
}
bmp= BitmapFactory.decodeByteArray(output.toByteArray(), 0, output.toByteArray().length);
image=new UMImage(this,bmp);
}

switch (i) {
case 0:
dialog.shareWeixin(NewsActivity.this, "HelloBaby", mNewsDetail.getContent(), image, umShareListener,false);
break;
case 1:
dialog.shareWeixinCircle(NewsActivity.this, "HelloBaby", mNewsDetail.getContent(), image, umShareListener,true);
break;
case 2:
dialog.shareQQ(NewsActivity.this, "HelloBaby", mNewsDetail.getContent(), image, umShareListener);
break;
case 3:
dialog.shareWeibo(NewsActivity.this, "HelloBaby", mNewsDetail.getContent(), image, umShareListener);
break;
default:
break;
}
}

这里是将ScollView所包含的界面生产一个bitmap，工具类这里也给出。

package com.abings.baby.utils;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.text.SimpleDateFormat;
import java.util.Date;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Picture;
import android.net.Uri;
import android.os.Environment;
import android.view.View;
import android.webkit.WebSettings.LayoutAlgorithm;
import android.webkit.WebView;
import android.widget.ScrollView;

@SuppressWarnings("deprecation")
public class ContentToPictureUtils {

    public static String DCIMCamera_PATH = Environment
            .getExternalStorageDirectory() + "/DCIM/Camera/";

    /**
 * webView
 * 
 * @param context
 * @param webView
 */
    public static void webviewContent2Png(Context context, WebView webView) {
        Bitmap bmp = null;
        bmp = captureWebView(webView);
        // new Thread(new WorkThread(bmp)).start();
        saveBitmapToCamera(context, bmp, null);
    }

    /**
 * mScrollView
 * 
 * @param context
 * @param scrollView
 */
    public static void scrollviewContent2Png(Context context,
            ScrollView scrollView) {
        Bitmap bmp = null;
        bmp = getBitmapByView(scrollView);
        // new Thread(new WorkThread(bmp)).start();
        saveBitmapToCamera(context, bmp, null);
    }

    private static Bitmap captureWebView(WebView webView) {
        Picture snapShot = webView.capturePicture();
        Bitmap bmp = Bitmap.createBitmap(snapShot.getWidth(),
                snapShot.getHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bmp);
        snapShot.draw(canvas);
        return bmp;
    }

    public static Boolean saveBitmapToCamera(Context context, Bitmap bm,
            String name) {

        File file = null;

        if (name == null || name.equals("")) {
            SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss");
            Date curDate = new Date(System.currentTimeMillis());
            name = formatter.format(curDate) + ".jpg";
        }
        file= new File(DCIMCamera_PATH);
        if (!file.exists()) {
            file.mkdirs();
        }
        file = new File(DCIMCamera_PATH, name);
        if (file.exists()) {
            file.delete();
        }
        try {
            FileOutputStream out = new FileOutputStream(file);
            bm.compress(Bitmap.CompressFormat.PNG, 100, out);
            out.flush();
            out.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            return false;

        } catch (IOException e) {

            e.printStackTrace();
            return false;
        }

        Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
        Uri uri = Uri.fromFile(file);
        intent.setData(uri);
        context.sendBroadcast(intent);

        return true;
    }

    public static Bitmap getBitmapByView(ScrollView scrollView) {
        int h = 0;
        Bitmap bitmap = null;

        for (int i = 0; i             h += scrollView.getChildAt(i).getHeight();
            scrollView.getChildAt(i).setBackgroundColor(
                    Color.parseColor("#ffffff"));
        }

        bitmap = Bitmap.createBitmap(scrollView.getWidth(), h,
                Bitmap.Config.RGB_565);
        final Canvas canvas = new Canvas(bitmap);
        scrollView.draw(canvas);
        return bitmap;
    }

}

图片生产后，创建UMImage，分享出去。具体分享代码参考友盟配置文档。