Android实时获取当前下载速度
16lz
2021-01-23
第一步
public class Net_Service extends Service { private long total_data = TrafficStats.getTotalRxBytes(); private Handler mHandler; //几秒刷新一次 private final int count = 5; /** * 定义线程周期性地获取网速 */ private Runnable mRunnable = new Runnable() { @Override public void run() { //定时器 mHandler.postDelayed(mRunnable, count * 1000); Message msg = mHandler.obtainMessage(); msg.what = 1; msg.arg1 = getNetSpeed(); mHandler.sendMessage(msg); } }; @Override public void onCreate() { super.onCreate(); mHandler = new Handler(){ @Override public void handleMessage(Message msg) { super.handleMessage(msg); if (msg.what == 1) { //float real_data = (float)msg.arg1; if(msg.arg1 > 1024 ){ //System.out.println(msg.arg1 / 1024 + "kb/s"); Intent intent = new Intent(); intent.setAction("com.weilian.fmscms.speed"); intent.putExtra("speed",msg.arg1 / 1024 + "kb/s"); sendBroadcast(intent); } else{ //System.out.println(msg.arg1 + "b/s"); } } } }; } /** * 核心方法，得到当前网速 * @return */ private int getNetSpeed() { long traffic_data = TrafficStats.getTotalRxBytes() - total_data; total_data = TrafficStats.getTotalRxBytes(); return (int)traffic_data /count ; } /** * 启动服务时就开始启动线程获取网速 */ @Override public void onStart(Intent intent, int startId) { mHandler.postDelayed(mRunnable, 0); }; /** * 在服务结束时删除消息队列 */ @Override public void onDestroy() { mHandler.removeCallbacks(mRunnable); super.onDestroy(); }; @Override public IBinder onBind(Intent intent) { return null; }}第二步
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第三步
//实时监听网路变化情况 IntentFilter intentFilter = new IntentFilter(); intentFilter.addAction("com.weilian.fmscms.speed"); broadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { mTvSpeed.setText(intent.getStringExtra("speed")); } }; registerReceiver(broadcastReceiver,intentFilter); startService(new Intent(ShowActivity.this,Net_Service.class));参考自:http://www.mamicode.com/info-detail-225320.html
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