public void getData() {

        // PackageManager 包管理类

        PackageManager packageManager = BrownserActivity.this.getPackageManager();

        int PackageUid = 0;

        BigDecimal numRx = new BigDecimal("0");

        BigDecimal numTx = new BigDecimal("0");

        /**

         * 循环抓紧所有应用的包名 和当前应用的包名进行匹配操作 把获取到的UID保存到一个临时变量

         */

        /*for (ApplicationInfo info : packageManager.getInstalledApplications(0)) {

            int uid = info.uid;

            String packageName = info.packageName;

            if (packageName.indexOf("iAssistant") > -1) {

                PackageUid = uid;

                break;

            }

        }*/

        // 获取当前应用的uid

        PackageUid = android.os.Process.myUid();

        // TrafficStats类根据应用的UID获取到流量的相关数据

        long rx = TrafficStats.getUidRxBytes(PackageUid);// 总接收量

        long tx = TrafficStats.getUidTxBytes(PackageUid);// 总发送量

        float justLoad = 0f;

        Log.i("scott", "本应用本次开机总接收量：" + rx);

        Log.i("scott", "本应用本次开机总发送量：" + tx);

        if (rx > 0) {

            numRx = byteToM(rx);

            justLoad = numRx.floatValue() - initData;

            initData = numRx.floatValue();

        }

        if (tx > 0) {

            numTx = byteToM(tx);

        }

        // Toast.makeText(BrownserActivity.this, "总接收量:"+numRx.floatValue()+"M",

        // Toast.LENGTH_SHORT).show();

        Toast.makeText(BrownserActivity.this, "本次接收量:" + justLoad + "M", Toast.LENGTH_SHORT).show();

        Log.i("scott", "转换为(M为单位)后的总接收量：" + numRx.floatValue());

        Log.i("scott", "转换为(M为单位)后的总发送量：" + numTx.floatValue());

    }

    /**

     * 字节转换为M

     */

    private BigDecimal byteToM(long value) {

        BigDecimal result = new BigDecimal(Long.toString(value));

        result = result.divide(new BigDecimal("1024.0")).divide(new BigDecimal("1024.0"));

        return result;

    }