android 应用实现微信挚友或朋友圈分享

android 应用实现微信好友或朋友圈分享
官方的文档连接:https://open.weixin.qq.com/cgi-bin/frame?t=resource/res_main_tmpl&lang=zh_CN

private IWXAPI api;

		// 微信注册初始化		api = WXAPIFactory.createWXAPI(this, "wx5ce2ffa100e3f587", true);		api.registerApp("wx5ce2ffa100e3f587");

分享到微信里边的内容，其中flag 0是朋友圈，1是好友，
分享前判断下是否有安装微信，没有就不提示用户

	private void share2weixin(int flag) {		// Bitmap bmp = BitmapFactory.decodeResource(getResources(),		// R.drawable.weixin_share);		if (!api.isWXAppInstalled()) {			Toast.makeText(WXEntryActivity.this, "您还未安装微信客户端",					Toast.LENGTH_SHORT).show();			return;		}		WXWebpageObject webpage = new WXWebpageObject();		webpage.webpageUrl = "http://baidu.com";		WXMediaMessage msg = new WXMediaMessage(webpage);		msg.title = "title";		msg.description = getResources().getString(				R.string.app_share_weixin_txt);		Bitmap thumb = BitmapFactory.decodeResource(getResources(),				R.drawable.weixin_share);		msg.setThumbImage(thumb);		SendMessageToWX.Req req = new SendMessageToWX.Req();		req.transaction = String.valueOf(System.currentTimeMillis());		req.message = msg;		req.scene = flag;		api.sendReq(req);	}

分享是否成功查询，可以通过IWXAPIEventHandler回调接口来处理

	@Override	public void onReq(BaseReq arg0) {		// TODO Auto-generated method stub	}	@Override	public void onResp(BaseResp resp) {		Log.v("caodongquan", "hello world");		String result = "";		switch (resp.errCode) {		case BaseResp.ErrCode.ERR_OK:			result = "errcode_success";			break;		case BaseResp.ErrCode.ERR_USER_CANCEL:			result = "errcode_cancel";			break;		case BaseResp.ErrCode.ERR_AUTH_DENIED:			result = "errcode_deny";			break;		default:			result = "errcode_unknown";			break;		}		// Toast.makeText(this, result, Toast.LENGTH_LONG).show();	}

注册回调监听事件

api.handleIntent(intent, this);

注意事项:
1.必须要在你注册的包名下，再新建一个"包名.wxapi"包，新建一个WXEntryActivity类
2.keystore要配置好,具体是在"window--preferences--android--build--Custom debug keystore"选中keystore文件，然后使用签名文件打包，就行啦!