Android--獲取使用的總流量和每個App的上傳、下載的流量

獲得每個App的上傳、下載的流量。

思路就是獲取到我們手機上的所有app，再獲得app里面使用的權限，如果app有網絡權限，就顯示出來。

代碼很簡單，代碼里面也有比較詳細的注釋，下面直接上代碼

布局文件:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context="com.example.fanlei.mycontentproviderdemo.TrafficActivity">

    <TextView
        android:id="@+id/show_liuliang"
        android:text="@string/hello_world"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <Button
        android:id="@+id/btn_scan"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="獲取App流量"/>

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

    </ListView>
</LinearLayout>

主函數:

package com.example.fanlei.mycontentproviderdemo;

import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.TrafficStats;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;


public class TrafficActivity extends ActionBarActivity {

    private TextView show_liuliang;//顯示流量
    private Button   btn_scan;
    private ListView listView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_traffic_activity);

        show_liuliang = (TextView) findViewById(R.id.show_liuliang);
        listView      = (ListView) findViewById(R.id.listView);
        btn_scan      = (Button) findViewById(R.id.btn_scan);

        long mrb = TrafficStats.getMobileRxBytes();   //手機接收的字節數,非WiFi狀態

        long mtb = TrafficStats.getMobileTxBytes();   //手機發送的字節數，非WiFi狀態

        long tMrb = TrafficStats.getTotalRxBytes();   //全部接收的字節數

        long tMtb = TrafficStats.getTotalTxBytes();   //全部發送的字節數

        StringBuilder sb = new StringBuilder();
        sb.append("非WiFi總接受:").append(byteToMB(mrb));
        sb.append("非WiFi總發送:").append(byteToMB(mtb));
        sb.append("全部接收:").append(byteToMB(tMrb));
        sb.append("全部發送:").append(byteToMB(tMtb));

        show_liuliang.setText(sb.toString());//顯示

        btn_scan.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                PackageManager pm = getPackageManager();             //拿到包管理者
                //拿到包的信息  PackageInfo是系統的一個類
                List<PackageInfo> info = pm.getInstalledPackages(PackageManager.GET_UNINSTALLED_PACKAGES
                                                                 |PackageManager.GET_PERMISSIONS);
                List<Map<String,String>> appInfo = new ArrayList<>();//用於存放App的名稱，上傳和下載的字節
                /**
                 * 通過看它有沒有網絡權限權限
                 */
                for (PackageInfo temp:info){
                    String permissions[] = temp.requestedPermissions;    //拿到該包的權限
                    if (permissions!= null && permissions.length > 0){   //如果有權限
                        for (String p : permissions){
                            if (p.equals("android.permission.INTERNET")){//是否有網絡權限
                                String appName = temp.applicationInfo.loadLabel(pm).toString();       //App名稱
                                long appMrb    = TrafficStats.getUidRxBytes(temp.applicationInfo.uid);//App接收的字節
                                long appMtb    = TrafficStats.getUidTxBytes(temp.applicationInfo.uid);//App發送的字節
                                String str = appName + "下載："+byteToMB(appMrb)+"上傳:"+byteToMB(appMtb);
                                Map<String,String> map = new HashMap<>();
                                map.put("info",str);
                                appInfo.add(map);
                            }
                        }
                    }
                }

                SimpleAdapter simpleAdapter = new SimpleAdapter(getBaseContext(),
                        appInfo,
                        android.R.layout.simple_list_item_1,
                        new String[]{"info"},
                        new int[]{android.R.id.text1});

                listView.setAdapter(simpleAdapter);//設置Adapter
            }
        });
    }
    //將字節數轉化為MB
    private String byteToMB(long size){
        long kb = 1024;
        long mb = kb*1024;
        long gb = mb*1024;
        if (size >= gb){
            return String.format("%.1f GB",(float)size/gb);
        }else if (size >= mb){
            float f = (float) size/mb;
            return String.format(f > 100 ?"%.0f MB":"%.1f MB",f);
        }else if (size > kb){
            float f = (float) size / kb;
            return String.format(f>100?"%.0f KB":"%.1f KB",f);
        }else {
            return String.format("%d B",size);
        }
    }

}

虛擬機效果圖，由於我的虛擬機不能上網，故沒有流量的使用