BaiduNaviManager.getInstance().init(this, mSDCardPath, APP_FOLDER_NAME, new NaviInitListener() {
        @Override
        public void onAuthResult(int status, String msg) {
            if (0 == status) {
                authinfo = "key校验成功!";
            } else {
                authinfo = "key校验失败, " + msg;
            }
            BNDemoMainActivity.this.runOnUiThread(new Runnable() {

                @Override
                public void run() {
                    Toast.makeText(BNDemoMainActivity.this, authinfo, Toast.LENGTH_LONG).show();
                }
            });
        }

        public void initSuccess() {
            Toast.makeText(BNDemoMainActivity.this, "百度导航引擎初始化成功", Toast.LENGTH_SHORT).show();
            hasInitSuccess = true;
            initSetting();
        }

        public void initStart() {
            Toast.makeText(BNDemoMainActivity.this, "百度导航引擎初始化开始", Toast.LENGTH_SHORT).show();
        }

        public void initFailed() {
            Toast.makeText(BNDemoMainActivity.this, "百度导航引擎初始化失败", Toast.LENGTH_SHORT).show();
        }

    }, null, ttsHandler, ttsPlayStateListener);

}