zhy_app_shigong_dingyuan/.svn/pristine/d6/d6c2ea3d77395dd063e5e4b880da997d38f0585f.svn-base

package com.example.myapplication.utils;

import android.content.Context;
import android.content.res.AssetManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;

import com.tencent.mm.opensdk.modelmsg.SendMessageToWX;
import com.tencent.mm.opensdk.modelmsg.WXImageObject;
import com.tencent.mm.opensdk.modelmsg.WXMediaMessage;
import com.tencent.mm.opensdk.modelmsg.WXTextObject;
import com.tencent.mm.opensdk.modelmsg.WXWebpageObject;
import com.tencent.mm.opensdk.openapi.IWXAPI;

import java.io.IOException;
import java.io.InputStream;

/**
 * 分享功能
 */
public class ShareUtils {
    //微信朋友
    public static final int WX_SESSION = 1;
    //微信朋友圈
    public static final int WX_TIME_LINE = 2;

    public static final int THUMB_SIZE = 150;


    private static String buildTransaction(final String type) {
        return (type == null) ? String.valueOf(System.currentTimeMillis()) : type + System.currentTimeMillis();
    }

    /**
     * 从assets中读取图片
     */
    public static Bitmap getImageFromAssetsFile(Context context, String fileName) {
        Bitmap image = null;
        AssetManager am = context.getResources().getAssets();
        InputStream is = null;
        try {
            is = am.open(fileName);
            image = BitmapFactory.decodeStream(is);

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (null != is) {
                try {
                    is.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

        }
        return image;
    }

    public static void shareWXImage(IWXAPI api, Context context, String fileName, String thumbFileName) {
//        Bitmap bmp = BitmapFactory.decodeResource(context.getResources(), resId);
        Bitmap bmp = getImageFromAssetsFile(context, fileName);

        Bitmap thumbB = getImageFromAssetsFile(context, thumbFileName);

        shareWXImage(api, bmp, thumbB);
    }

    public static void shareWXImage(IWXAPI api, Bitmap bmp, Bitmap thumbB) {
//        Bitmap bmp = BitmapFactory.decodeResource(context.getResources(), resId);
//        Bitmap bmp = getImageFromAssetsFile(context, fileName);
        WXImageObject imgObj = new WXImageObject(bmp);
        WXMediaMessage msg = new WXMediaMessage();
        msg.mediaObject = imgObj;

        //设置缩略图(不能大于32k)
//        Bitmap thumbBmp =compressImage(bmp);
//        Bitmap thumbB = getImageFromAssetsFile(context, thumbFileName);
        Bitmap thumbBmp = Bitmap.createScaledBitmap(thumbB, THUMB_SIZE, THUMB_SIZE * thumbB.getHeight() / thumbB.getWidth(), true);
        if (bmp != null) {
            bmp.recycle();
        }
        msg.thumbData = ImageTools.bmpToByteArray(thumbBmp, false);

        SendMessageToWX.Req req = new SendMessageToWX.Req();
        //用于唯一标识请求
        req.transaction = buildTransaction("img");

        req.message = msg;

        req.scene = SendMessageToWX.Req.WXSceneSession;
        api.sendReq(req);
    }

    public static void shareWXText(IWXAPI api, String text) {
        WXTextObject textObject = new WXTextObject(text);
        WXMediaMessage msg = new WXMediaMessage();
        msg.mediaObject = textObject;
        msg.description = text;

        SendMessageToWX.Req req = new SendMessageToWX.Req();
        //用于唯一标识请求
        req.transaction = buildTransaction("text");

        req.message = msg;

        req.scene = SendMessageToWX.Req.WXSceneSession;
        api.sendReq(req);
    }

    public static void shareWXWebpage(IWXAPI api, Context context, String bitmapName, String url, String title, String desc) {
        WXWebpageObject webpage = new WXWebpageObject();
        webpage.webpageUrl = url;


        WXMediaMessage message = new WXMediaMessage(webpage);
        message.title = title;
        message.description = desc;

        Bitmap bitmap = getImageFromAssetsFile(context, bitmapName);
        message.thumbData = ImageTools.bmpToByteArray(bitmap, true);

        SendMessageToWX.Req req = new SendMessageToWX.Req();
        req.transaction = buildTransaction("webpage");
        req.message = message;
        req.scene = SendMessageToWX.Req.WXSceneSession;
        api.sendReq(req);

    }

}