Android分享到微信和朋友圈的工具类

import android.content.Context;

import com.fortrun.client.config.AppConfig;
import com.tencent.mm.sdk.openapi.IWXAPI;
import com.tencent.mm.sdk.openapi.SendMessageToWX;
import com.tencent.mm.sdk.openapi.WXAPIFactory;
import com.tencent.mm.sdk.openapi.WXMediaMessage;
import com.tencent.mm.sdk.openapi.WXTextObject;

/**
 * 分享到微信和朋友圈的帮助类
 * @author yw-tony
 *
 */
public class WeiXinUtils{
    private WeiXinUtils(){}
    private static WeiXinUtils instance;
    public IWXAPI api;
    public SendMessageToWX.Req req;
    public static WeiXinUtils getInstance(){
        synchronized (WeiXinUtils.class) {
            if(instance == null){
                instance = new WeiXinUtils();
            }
        }
        return instance;
    }
    /**
     * 初始化分享功能
     * @param context
     * 
     */
    public void init(Context context){
        api = WXAPIFactory.createWXAPI(context, AppConfig.APP_ID, true);
        api.registerApp(AppConfig.APP_ID);//将应用appid注册到微信
        WXTextObject textObject = new WXTextObject();
        textObject.text = "分享链接";//内容
        
        WXMediaMessage  msg = new WXMediaMessage();
        msg.mediaObject = textObject;
        msg.description = "内容描述";//描述
        
        req = new SendMessageToWX.Req();
        req.transaction = String.valueOf(System.currentTimeMillis());
        req.message = msg;
        
    }
    /**
     * 分享消息到微信
     * type 0:分享到微信
     * type 1:分享到朋友圈
     */
    public void sendToWeiXin(int type){
        if(type == 1){
            req.scene = SendMessageToWX.Req.WXSceneTimeline;//加上这一段代码即未分享到朋友圈，否则分享到微信
        }
        api.sendReq(req);
    }
}