很多安全卫士类软件都实现了网速监测功能,也算是一个比较实用的功能。Android下,TrafficStats类实现了对流量的统计。
- static long getMobileRxBytes()//获取通过Mobile连接收到的字节总数,但不包含WiFi
- static long getMobileRxPackets()//获取Mobile连接收到的数据包总数
- static long getMobileTxBytes()//Mobile发送的总字节数
- static long getMobileTxPackets()//Mobile发送的总数据包数
- static long getTotalRxBytes()//获取总的接受字节数,包含Mobile和WiFi等
- static long getTotalRxPackets()//总的接受数据包数,包含Mobile和WiFi等
- static long getTotalTxBytes()//总的发送字节数,包含Mobile和WiFi等
- static long getTotalTxPackets()//发送的总数据包数,包含Mobile和WiFi等
- static long getUidRxBytes(int uid)//获取某个网络UID的接受字节数
- static long getUidTxBytes(intuid) //获取某个网络UID的发送字节数
这些就是TrafficStats提供的一些接口。那么,我们首先要创建一个桌面悬浮窗,用于显示网速。然后再Service里面,显示悬浮窗。
- import android.app.Service;
- import android.content.Intent;
- import android.graphics.PixelFormat;
- import android.os.Binder;
- import android.os.IBinder;
- import android.util.Log;
- import android.view.Gravity;
- import android.view.LayoutInflater;
- import android.view.MotionEvent;
- import android.view.View;
- import android.view.View.OnClickListener;
- import android.view.View.OnTouchListener;
- import android.view.WindowManager;
- import android.view.WindowManager.LayoutParams;
- import android.widget.LinearLayout;
- import android.widget.TextView;
- import com.yyh.utils.WidgetUtils;
- public class ManagerService extends Service {
- private static final String TAG = "ManagerService";
- public LinearLayout mFloatLayout;
- public WindowManager.LayoutParams wmParams;
- public WindowManager mWindowManager;
- public TextView mFloatView;
- private ServiceBinder binder = new ServiceBinder();
- @Override
- public void onCreate() {
- super.onCreate();
- createFloatView();
- }
- @Override
- public int onStartCommand(Intent intent, int flags, int startId) {
- return START_STICKY_COMPATIBILITY;
- }
- @Override
- public IBinder onBind(Intent intent) {
- return binder;
- }
- @Override
- public void onTrimMemory(int level) {
- Log.i("test", " onTrimMemory...");
- }
- /** 创建悬浮窗 */
- private void createFloatView() {
- wmParams = new WindowManager.LayoutParams();
- mWindowManager = (WindowManager) getApplication().getSystemService(getApplication().WINDOW_SERVICE);
- wmParams.type = LayoutParams.TYPE_SYSTEM_ALERT;// 设置window
- // type为TYPE_SYSTEM_ALERT
- wmParams.format = PixelFormat.RGBA_8888;// 设置图片格式,效果为背景透明
- wmParams.flags = LayoutParams.FLAG_NOT_FOCUSABLE;// 设置浮动窗口不可聚焦(实现操作除浮动窗口外的其他可见窗口的操作)
- wmParams.gravity = Gravity.LEFT | Gravity.TOP;// 默认位置:左上角
- wmParams.width = WidgetUtils.dpToPx(getApplicationContext(), 65);
- wmParams.height = WindowManager.LayoutParams.WRAP_CONTENT;
- wmParams.x = (WidgetUtils.getScreenWidth(getApplicationContext()) - wmParams.width) / 2;// 设置x、y初始值,相对于gravity
- wmParams.y = 10;
- // 获取浮动窗口视图所在布局
- LayoutInflater inflater = LayoutInflater.from(getApplication());
- mFloatLayout = (LinearLayout) inflater.inflate(R.layout.float_layout, null);
- mWindowManager.addView(mFloatLayout, wmParams);// 添加mFloatLayout
- mFloatView = (TextView) mFloatLayout.findViewById(R.id.speed);
- mFloatLayout.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
- // 设置监听浮动窗口的触摸移动
- mFloatView.setOnTouchListener(new OnTouchListener() {
- @Override
- public boolean onTouch(View v, MotionEvent event) {
- // getRawX是触摸位置相对于屏幕的坐标,getX是相对于按钮的坐标
- wmParams.x = (int) event.getRawX() - mFloatView.getMeasuredWidth() / 2;
- Log.i(TAG, "RawX" + event.getRawX());
- Log.i(TAG, "X" + event.getX());
- wmParams.y = (int) event.getRawY() - mFloatView.getMeasuredHeight() / 2 - 25;// 减25为状态栏的高度
- Log.i(TAG, "RawY" + event.getRawY());
- Log.i(TAG, "Y" + event.getY());
- mWindowManager.updateViewLayout(mFloatLayout, wmParams);// 刷新
- return false; // 此处必须返回false,否则OnClickListener获取不到监听
- }
- });
- mFloatView.setOnClickListener(new OnClickListener() {
- @Override
- public void onClick(View arg0) {
- // do something... 跳转到应用
- }
- });
- }
- public void setSpeed(String str) {
- mFloatView.setText(str.toString());
- }
- @Override
- public void onDestroy() {
- super.onDestroy();
- if (mFloatLayout != null && mWindowManager != null) {
- mWindowManager.removeView(mFloatLayout);// 移除悬浮窗口
- }
- startService(new Intent(this, ManagerService.class));
- }
- class ServiceBinder extends Binder {
- public ManagerService getService() {
- return ManagerService.this;
- }
- }
- }
- import java.io.FileNotFoundException;
- import java.io.IOException;
- import java.io.RandomAccessFile;
- import java.math.BigDecimal;
- import java.util.Timer;
- import java.util.TimerTask;
- import android.content.Context;
- import android.content.pm.ApplicationInfo;
- import android.content.pm.PackageManager;
- import android.content.pm.PackageManager.NameNotFoundException;
- import android.net.TrafficStats;
- import android.os.Handler;
- import android.os.Message;
- import android.util.Log;
- /**
- * 应用的流量信息
- * @author yuyuhang
- */
- public class TrafficInfo {
- private static final int UNSUPPORTED = -1;
- private static final String LOG_TAG = "test";
- private static TrafficInfo instance;
- static int uid;
- private long preRxBytes = 0;
- private Timer mTimer = null;
- private Context mContext;
- private Handler mHandler;
- /** 更新频率(每几秒更新一次,至少1秒) */
- private final int UPDATE_FREQUENCY = 1;
- private int times = 1;
- public TrafficInfo(Context mContext, Handler mHandler, int uid) {
- this.mContext = mContext;
- this.mHandler = mHandler;
- this.uid = uid;
- }
- public TrafficInfo(Context mContext, Handler mHandler) {
- this.mContext = mContext;
- this.mHandler = mHandler;
- }
- public static TrafficInfo getInstant(Context mContext, Handler mHandler) {
- if (instance == null) {
- instance = new TrafficInfo(mContext, mHandler);
- }
- return instance;
- }
- /**
- * 获取总流量
- */
- public long getTrafficInfo() {
- long rcvTraffic = UNSUPPORTED; // 下载流量
- long sndTraffic = UNSUPPORTED; // 上传流量
- rcvTraffic = getRcvTraffic();
- sndTraffic = getSndTraffic();
- if (rcvTraffic == UNSUPPORTED || sndTraffic == UNSUPPORTED)
- return UNSUPPORTED;
- else
- return rcvTraffic + sndTraffic;
- }
- /**
- * 获取下载流量 某个应用的网络流量数据保存在系统的/proc/uid_stat/$UID/tcp_rcv | tcp_snd文件中
- */
- public long getRcvTraffic() {
- long rcvTraffic = UNSUPPORTED; // 下载流量
- rcvTraffic = TrafficStats.getUidRxBytes(uid);
- if (rcvTraffic == UNSUPPORTED) { // 不支持的查询
- return UNSUPPORTED;
- }
- Log.i("test", rcvTraffic + "--1");
- RandomAccessFile rafRcv = null, rafSnd = null; // 用于访问数据记录文件
- String rcvPath = "/proc/uid_stat/" + uid + "/tcp_rcv";
- try {
- rafRcv = new RandomAccessFile(rcvPath, "r");
- rcvTraffic = Long.parseLong(rafRcv.readLine()); // 读取流量统计
- } catch (FileNotFoundException e) {
- Log.e(LOG_TAG, "FileNotFoundException: " + e.getMessage());
- rcvTraffic = UNSUPPORTED;
- } catch (IOException e) {
- Log.e(LOG_TAG, "IOException: " + e.getMessage());
- e.printStackTrace();
- } finally {
- try {
- if (rafRcv != null)
- rafRcv.close();
- if (rafSnd != null)
- rafSnd.close();
- } catch (IOException e) {
- Log.w(LOG_TAG, "Close RandomAccessFile exception: " + e.getMessage());
- }
- }
- Log.i("test", rcvTraffic + "--2");
- return rcvTraffic;
- }
- /**
- * 获取上传流量
- */
- public long getSndTraffic() {
- long sndTraffic = UNSUPPORTED; // 上传流量
- sndTraffic = TrafficStats.getUidTxBytes(uid);
- if (sndTraffic == UNSUPPORTED) { // 不支持的查询
- return UNSUPPORTED;
- }
- RandomAccessFile rafRcv = null, rafSnd = null; // 用于访问数据记录文件
- String sndPath = "/proc/uid_stat/" + uid + "/tcp_snd";
- try {
- rafSnd = new RandomAccessFile(sndPath, "r");
- sndTraffic = Long.parseLong(rafSnd.readLine());
- } catch (FileNotFoundException e) {
- Log.e(LOG_TAG, "FileNotFoundException: " + e.getMessage());
- sndTraffic = UNSUPPORTED;
- } catch (IOException e) {
- Log.e(LOG_TAG, "IOException: " + e.getMessage());
- e.printStackTrace();
- } finally {
- try {
- if (rafRcv != null)
- rafRcv.close();
- if (rafSnd != null)
- rafSnd.close();
- } catch (IOException e) {
- Log.w(LOG_TAG, "Close RandomAccessFile exception: " + e.getMessage());
- }
- }
- return sndTraffic;
- }
- /**
- * 获取当前下载流量总和
- */
- public static long getNetworkRxBytes() {
- return TrafficStats.getTotalRxBytes();
- }
- /**
- * 获取当前上传流量总和
- */
- public static long getNetworkTxBytes() {
- return TrafficStats.getTotalTxBytes();
- }
- /**
- * 获取当前网速,小数点保留一位
- */
- public double getNetSpeed() {
- long curRxBytes = getNetworkRxBytes();
- if (preRxBytes == 0)
- preRxBytes = curRxBytes;
- long bytes = curRxBytes - preRxBytes;
- preRxBytes = curRxBytes;
- //int kb = (int) Math.floor(bytes / 1024 + 0.5);
- double kb = (double)bytes / (double)1024;
- BigDecimal bd = new BigDecimal(kb);
- return bd.setScale(1, BigDecimal.ROUND_HALF_UP).doubleValue();
- }
- /**
- * 开启流量监控
- */
- public void startCalculateNetSpeed() {
- preRxBytes = getNetworkRxBytes();
- if (mTimer != null) {
- mTimer.cancel();
- mTimer = null;
- }
- if (mTimer == null) {
- mTimer = new Timer();
- mTimer.schedule(new TimerTask() {
- @Override
- public void run() {
- if(times == UPDATE_FREQUENCY){
- Message msg = new Message();
- msg.what = 1;
- //msg.arg1 = getNetSpeed();
- msg.obj = getNetSpeed();
- mHandler.sendMessage(msg);
- times = 1;
- } else {
- times++;
- }
- }
- }, 1000, 1000); // 每秒更新一次
- }
- }
- public void stopCalculateNetSpeed() {
- if (mTimer != null) {
- mTimer.cancel();
- mTimer = null;
- }
- }
- /**
- * 获取当前应用uid
- */
- public int getUid() {
- try {
- PackageManager pm = mContext.getPackageManager();
- ApplicationInfo ai = pm.getApplicationInfo(mContext.getPackageName(), PackageManager.GET_ACTIVITIES);
- return ai.uid;
- } catch (NameNotFoundException e) {
- e.printStackTrace();
- }
- return -1;
- }
- }
然后再Activity里面,就需要去启动Service,以显示悬浮窗,然后TrafficInfo通过Handler,把当前网速发给Activity,Activity调用Service的方法了来更新悬浮窗的View。
- import java.util.List;
- import android.app.ActivityManager;
- import android.app.ActivityManager.RunningAppProcessInfo;
- import android.content.ComponentName;
- import android.content.Context;
- import android.content.Intent;
- import android.content.ServiceConnection;
- import android.os.Bundle;
- import android.os.Handler;
- import android.os.IBinder;
- import android.os.Message;
- import android.support.v7.app.ActionBarActivity;
- import android.util.Log;
- import android.widget.TextView;
- import com.yyh.utils.TrafficInfo;
- public class MainActivity extends ActionBarActivity {
- private ActivityManager mActivityManager;
- private TextView mTextView;
- Handler mHandler;
- TrafficInfo speed;
- ManagerService service;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- mActivityManager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
- mTextView = (TextView) findViewById(R.id.tv);
- try {
- mHandler = new Handler() {
- @Override
- public void handleMessage(Message msg) {
- if (msg.what == 1) {
- mTextView.setText(msg.obj + "kb/s");
- if(service != null)
- service.setSpeed(msg.obj+"kb/s"); // 设置网速
- }
- super.handleMessage(msg);
- }
- };
- speed = new TrafficInfo(this,mHandler,TrafficInfo.getUid());
- speed.startCalculateNetSpeed(); // 开启网速监测
- } catch (Exception e) {
- e.printStackTrace();
- }
- Log.i("test","总流量="+speed.getTrafficInfo());
- Intent intent = new Intent(MainActivity.this, ManagerService.class);
- bindService(intent, conn, Context.BIND_AUTO_CREATE);
- }
- private ServiceConnection conn = new ServiceConnection() {
- public void onServiceConnected(ComponentName name, IBinder binder) {
- service = ((ManagerService.ServiceBinder) binder).getService();
- }
- public void onServiceDisconnected(ComponentName name) {
- service = null;
- }
- };
- @Override
- protected void onDestroy() {
- super.onDestroy();
- speed.stopCalculateNetSpeed();
- unbindService(conn);
- }
- }
这样,就能够显示悬浮窗。如果还需要后台运行,那Service就需要常驻不被杀死,这部分请参考我另一篇博文: Android 通过JNI实现守护进程,保证Service服务不被杀死
附上Demo源码:Android 流量与网速监测(悬浮窗) 源码
原文地址:http://blog.csdn.net/yyh352091626/article/details/50599621
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