List all installed application's uids

TrafficSnapshot.java

package com.commonsware.android.tuning.traffic;

import java.util.HashMap;
import android.content.Context;
import android.content.pm.ApplicationInfo;

class TrafficSnapshot {
  TrafficRecord device=null;
  HashMap<Integer, TrafficRecord> apps = new HashMap<Integer, TrafficRecord>();
  
  TrafficSnapshot(Context ctxt) {
    device=new TrafficRecord();
    
    HashMap<Integer, String> appNames=new HashMap<Integer, String>();
    
    for (ApplicationInfo app : ctxt.getPackageManager().getInstalledApplications(0)) {
      appNames.put(app.uid, app.packageName);
    }
    
    for (Integer uid : appNames.keySet()) {
      apps.put(uid, new TrafficRecord(uid, appNames.get(uid)));
    }
  }
}