Android 读取正在运行非系统的程序

1）创建RunningAppInfo类，代码如下

package com.example.runningapps;import android.graphics.drawable.Drawable;public class RunningAppInfo {/*程序名称*/private String appLabel;public void SetAppLabel(String _appLabel){this.appLabel=_appLabel;}public String GetAppLabel(){return this.appLabel;}/*程序图标*/private Drawable appIcon;public void SetAppIcon(Drawable _appIcon){this.appIcon=_appIcon;}public Drawable GetAppIcon(){return appIcon;}/*包名称*/private String pkgName;public void SetPkgName(String _pkgName){this.pkgName=_pkgName;}public String GetPkgName(){return this.pkgName;}/*进程id*/private int pid;public void SetPid(int _pid){this.pid=_pid;}public int GetPid(){return this.pid;}/*进程名称*/private String processName;public void SetProcessName(String _processName){this.processName=_processName;}public String GetProcessName(){return processName;}}

2）创建applist.xml作为自定义ListView的样式代码如下

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent" >    <ImageView        android:id="@+id/appIcon"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:src="@drawable/ic_launcher" />    <LinearLayout        android:layout_width="wrap_content"        android:layout_height="match_parent"        android:orientation="vertical" >        <LinearLayout            android:layout_width="match_parent"            android:layout_height="wrap_content">            <TextView                android:id="@+id/appLabel"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginLeft="20dp"                android:layout_marginTop="5dp"                android:text="TextView" />            <TextView                android:id="@+id/pkgName"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginLeft="20dp"                android:layout_marginTop="5dp"                android:text="TextView" />        </LinearLayout>        <LinearLayout            android:layout_width="match_parent"            android:layout_height="wrap_content" >            <TextView                android:id="@+id/pid"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginLeft="20dp"                android:layout_marginTop="5dp"                android:text="TextView" />            <TextView                android:id="@+id/processName"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginLeft="20dp"                android:layout_marginTop="5dp"                android:text="TextView" />        </LinearLayout>    </LinearLayout></LinearLayout>

3）创建MyListAdapter.java作为自定ListAdapeter代码如下

package com.example.runningapps;import java.util.ArrayList;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.TextView;class MyListAdapter extends BaseAdapter {private ArrayList<RunningAppInfo> apps=null;private Context context=null;public MyListAdapter(ArrayList<RunningAppInfo> _apps,Context _context){this.apps=_apps;this.context=_context;}      public int getCount() {          //设置绘制数量          return apps.size();      }        @Override      public boolean areAllItemsEnabled() {         return false;      }        public Object getItem(int position) {          return position;      }        public long getItemId(int position) {          return position;      }        public View getView(int position, View convertView, ViewGroup parent) {          ImageView appIconImageView=null;        TextView appLabelTextView=null;        TextView pkgNameTextView=null;        TextView pidTextView=null;        TextView processNameTextView=null;        if (convertView == null || position < apps.size()) {          convertView = LayoutInflater.from(context).inflate(              R.layout.applist, null);          appIconImageView = (ImageView) convertView.findViewById(R.id.appIcon);          appLabelTextView = (TextView) convertView.findViewById(R.id.appLabel);          pkgNameTextView = (TextView) convertView.findViewById(R.id.pkgName);          pidTextView = (TextView) convertView.findViewById(R.id.pid);          processNameTextView = (TextView) convertView.findViewById(R.id.processName);         }        /*图标*/        appIconImageView.setImageDrawable(apps.get(position).GetAppIcon());        /*应用程序名称*/        appLabelTextView.setText(apps.get(position).GetAppLabel());        /*包名称*/        pkgNameTextView.setText(apps.get(position).GetPkgName());        /*进程id*/        pidTextView.setText(Integer.toString(apps.get(position).GetPid()));        /*进程名称*/        processNameTextView.setText(apps.get(position).GetProcessName());        return convertView;      }  }

4）修改MainActivity.java代码将自定ListAdapeter绑定给ListView代码如下

package com.example.runningapps;import java.util.ArrayList;import java.util.Collections;import java.util.HashMap;import java.util.List;import java.util.Map;import android.os.Bundle;import android.app.Activity;import android.app.ActivityManager;import android.app.ActivityManager.RunningAppProcessInfo;import android.content.pm.ApplicationInfo;import android.content.pm.PackageManager;import android.view.Menu;import android.widget.ListView;public class MainActivity extends Activity {private PackageManager pm=null;private ListView listview1=null;private MyListAdapter adapter=null;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);listview1=(ListView)findViewById(R.id.listView1);ArrayList<RunningAppInfo> runningApps=queryAllRunningAppInfo();adapter=new MyListAdapter(runningApps, MainActivity.this);listview1.setAdapter(adapter);}/* 查找正在运行的应用程序 * 1）获取系统安装的所有应用程序 * 2）根据报名pkgname过滤获取真正运行的应用程序 * */private ArrayList<RunningAppInfo> queryAllRunningAppInfo(){pm=this.getPackageManager();ArrayList<RunningAppInfo> runningApps=new ArrayList<RunningAppInfo>();//获取所有已经安装的应用程序List<ApplicationInfo> installedApps=pm.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES);//排序Collections.sort(installedApps,new ApplicationInfo.DisplayNameComparator(pm));//保存所有正在运行的包名以及它所在的进程信息Map<String, RunningAppProcessInfo> pgkProcessAppMap=new HashMap<String, ActivityManager.RunningAppProcessInfo>();//通过调用ActivityManager的getRunningAppProcesses()方法获得系统里所有正在运行的进程ActivityManager mActivityManager=(ActivityManager)getSystemService(ACTIVITY_SERVICE);List<RunningAppProcessInfo> runningAppProcesses=mActivityManager.getRunningAppProcesses();for (RunningAppProcessInfo runningAppProcess : runningAppProcesses) {//获得正在运行在该进程里的所有应用程序包String[] pkgNameList=runningAppProcess.pkgList;for (String pkgName : pkgNameList) {//将所有的应用程序包添加到map对象里pgkProcessAppMap.put(pkgName, runningAppProcess);}}//遍历安装了应用程序for (ApplicationInfo installedApp : installedApps) {if(pgkProcessAppMap.containsKey(installedApp.packageName)){//安装程序正在运行if((installedApp.flags&installedApp.FLAG_SYSTEM)==0){//非系统应用程序RunningAppInfo item=new RunningAppInfo();item.SetPid(pgkProcessAppMap.get(installedApp.packageName).pid);item.SetProcessName(pgkProcessAppMap.get(installedApp.packageName).processName);item.SetAppLabel((String)installedApp.loadLabel(pm));item.SetAppIcon(installedApp.loadIcon(pm));item.SetPkgName(installedApp.packageName);runningApps.add(item);}}}return runningApps;}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}

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