73获取正在运行的进程的信息

获取正在运行的进程信息：包括进程的名字，进程和进程之间的区别（包名），图标，占用内存的大小，用户进程还是系统进程：

显示实体类：

package com.ustc.mobilemanager.domain;import android.graphics.drawable.Drawable;/** * 进程信息的业务bean *  * @author *  */public class TaskInfo {private Drawable icon;private String name;private String packname;private long memSize;// 内存占用大小private boolean userTask;// 用户进程(true)or系统进程(false)public Drawable getIcon() {return icon;}public void setIcon(Drawable icon) {this.icon = icon;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getPackname() {return packname;}public void setPackname(String packname) {this.packname = packname;}public long getMemSize() {return memSize;}public void setMemSize(long memSize) {this.memSize = memSize;}public boolean isUserTask() {return userTask;}public void setUserTask(boolean userTask) {this.userTask = userTask;}@Overridepublic String toString() {return "TaskInfo [icon=" + icon + ", name=" + name + ", packname="+ packname + ", memSize=" + memSize + ", userTask=" + userTask+ "]";}}

业务类：

package com.ustc.mobilemanager.engine;import java.util.ArrayList;import java.util.List;import com.ustc.mobilemanager.R;import com.ustc.mobilemanager.domain.TaskInfo;import android.app.ActivityManager;import android.app.ActivityManager.RunningAppProcessInfo;import android.content.Context;import android.content.pm.ApplicationInfo;import android.content.pm.PackageManager;import android.graphics.drawable.Drawable;import android.os.Debug.MemoryInfo;/** *  * 提供手机里面的进程信息 *  * @author *  */public class TaskInfoProvider {/** * 获取所有的进程信息 *  * @param context * @return */public static List<TaskInfo> getTaskInfo(Context context) {ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);PackageManager pm = context.getPackageManager();List<RunningAppProcessInfo> processInfos = am.getRunningAppProcesses();List<TaskInfo> taskInfos = new ArrayList<TaskInfo>();for (RunningAppProcessInfo processInfo : processInfos) {TaskInfo taskInfo = new TaskInfo();// 进程名就是包名String packname = processInfo.processName;taskInfo.setPackname(packname);// import android.os.Debug.MemoryInfo导包不能导错了MemoryInfo[] memoryInfos = am.getProcessMemoryInfo(new int[] { processInfo.pid });// 转成byte，方便转化long memsize = memoryInfos[0].getTotalPrivateDirty() * 1024l;taskInfo.setMemSize(memsize);try {// PackageInfo packageInfo = pm.getPackageInfo(packname, 0);// packageInfo.applicationInfoApplicationInfo applicationInfo = pm.getApplicationInfo(packname, 0);Drawable icon = applicationInfo.loadIcon(pm);taskInfo.setIcon(icon);String name = applicationInfo.loadLabel(pm).toString();taskInfo.setName(name);if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) == 0) {// 用户进程taskInfo.setUserTask(true);} else {// 系统进程taskInfo.setUserTask(false);}} catch (Exception e) {e.printStackTrace();//系统内核进程   没有名称taskInfo.setName(packname);taskInfo.setIcon(context.getResources().getDrawable(R.drawable.icon));}taskInfos.add(taskInfo);}return taskInfos;}}

方法也是通过ActivityManager的getRunningAppProcesses获得RunningAppProcessInfo的List集合，对这个集合做遍历：

RunningAppProcessInfo的processName就是包名；将进程的pid传入ActivityManager的getProcessMemoryInfo方法，得到MemoryInfo数组，通过getTotalPrivateDirty方法，得到进程占用手机内存的大小；

package com.ustc.mobilemanager.engine;import java.util.ArrayList;import java.util.List;import com.ustc.mobilemanager.R;import com.ustc.mobilemanager.domain.TaskInfo;import android.app.ActivityManager;import android.app.ActivityManager.RunningAppProcessInfo;import android.content.Context;import android.content.pm.ApplicationInfo;import android.content.pm.PackageManager;import android.graphics.drawable.Drawable;import android.os.Debug.MemoryInfo;/** *  * 提供手机里面的进程信息 *  * @author *  */public class TaskInfoProvider {/** * 获取所有的进程信息 *  * @param context * @return */public static List<TaskInfo> getTaskInfo(Context context) {ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);PackageManager pm = context.getPackageManager();List<RunningAppProcessInfo> processInfos = am.getRunningAppProcesses();List<TaskInfo> taskInfos = new ArrayList<TaskInfo>();for (RunningAppProcessInfo processInfo : processInfos) {TaskInfo taskInfo = new TaskInfo();// 进程名就是包名String packname = processInfo.processName;taskInfo.setPackname(packname);// import android.os.Debug.MemoryInfo导包不能导错了MemoryInfo[] memoryInfos = am.getProcessMemoryInfo(new int[] { processInfo.pid });// 转成byte，方便转化long memsize = memoryInfos[0].getTotalPrivateDirty() * 1024l;taskInfo.setMemSize(memsize);try {// PackageInfo packageInfo = pm.getPackageInfo(packname, 0);// packageInfo.applicationInfoApplicationInfo applicationInfo = pm.getApplicationInfo(packname, 0);Drawable icon = applicationInfo.loadIcon(pm);taskInfo.setIcon(icon);String name = applicationInfo.loadLabel(pm).toString();taskInfo.setName(name);if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) == 0) {// 用户进程taskInfo.setUserTask(true);} else {// 系统进程taskInfo.setUserTask(false);}} catch (Exception e) {e.printStackTrace();//系统内核进程   没有名称taskInfo.setName(packname);taskInfo.setIcon(context.getResources().getDrawable(R.drawable.icon));}taskInfos.add(taskInfo);}return taskInfos;}}

进程名和图标在applicationInfo这个节点下，判断是否是用户程序，只需要和ApplicationInfo.FLAG_SYSTEM做与运算就可以了，测试代码如下：

package com.ustc.mobilemanager.test;import java.util.List;import com.ustc.mobilemanager.domain.TaskInfo;import com.ustc.mobilemanager.engine.TaskInfoProvider;import android.test.AndroidTestCase;public class TestTaskInfoProvider extends AndroidTestCase {public void testGetTaskInfo() throws Exception {List<TaskInfo> infos = TaskInfoProvider.getTaskInfo(getContext());for (TaskInfo taskInfo : infos) {System.out.println(taskInfo.toString());}}}

打印：

不过，也引发了一些错误：（提示NameNotFoundException）

这个System的error未解决。要是知道怎么解决的朋友指导下。（我想应该不是代码的问题）。