android 获取进程、服务、任务列表
获取进程列表，需使用ActivityManager中的方法获取进程名；再根据进程名，获取应用程序的ApplicationInfo对象；用ApplicationInfo中的方法为进程加载图标和程序名称。获取服务、任务列表方法同上。 1 实例化ActivityManager
2 获取各列表
3 PackageUtil.java : 通过一个程序名返回该程序的一个ApplicationInfo对象
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private
ActivityManager mActivityManager;
mActivityManager=(ActivityManager)getSystemService(ACTIVITY_SERVICE);
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//获取任务列表
public
void
getTasks()
{
aryListTaskID=
new
ArrayList<String>();
aryListTaskName=
new
ArrayList<String>();
//以getRunningTasks()取得进程TaskInfo
List<ActivityManager.RunningTaskInfo> mRunningTasks=
mActivityManager.getRunningTasks(intGetTaskCounter);
for
(ActivityManager.RunningTaskInfo amTask:mRunningTasks)
{
aryListTaskName.add(amTask.baseActivity.getClassName());
aryListTaskID.add(
""
+amTask.id);
intTaskNum++;
}
tab3_tv1.setText(
"任务数量："
+intTaskNum);
tab3_tv2.setText(
"可用内存："
+fileSize(getAvailableRAM()));
}
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//获取服务列表
public
void
getService()
{
linkListServiceIcon=
new
LinkedList<Drawable>();
aryListServiceInfo=
new
ArrayList<String>();
aryListServiceName=
new
ArrayList<String>();
List<ActivityManager.RunningServiceInfo> serivces =
mActivityManager.getRunningServices(intGetServiceCounter);
for
(RunningServiceInfo service:serivces)
{
programUtil.setProcessName(service.process);
// 根据进程名，获取应用程序的ApplicationInfo对象
ApplicationInfo tempAppInfo = packageUtil.getApplicationInfo(service.process);
// 为进程加载图标和程序名称
if
(tempAppInfo !=
null
)
{
linkListServiceIcon.add(tempAppInfo.loadIcon(packageManager));
aryListServiceName.add(tempAppInfo.loadLabel(packageManager).toString());
}
else
{
linkListServiceIcon.add(getApplicationContext().getResources().getDrawable(R.drawable.ic_launcher));
aryListServiceName.add(service.process);
}
//MemInfo是否可得,不行则用包名代替
if
(!(mProcessMemoryUtil.getMemInfoByPid(service.pid)==
""
))
{
aryListServiceInfo.add(mProcessMemoryUtil.getMemInfoByPid(service.pid));
}
else
{
aryListServiceInfo.add(service.process);
}
intServiceNum++;
}
tab2_tv1.setText(
"服务数量："
+intServiceNum);
tab2_tv2.setText(
"可用内存："
+fileSize(getAvailableRAM()));
}
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//获取进程列表
public
void
getProcess()
{
linkListProcessIcon=
new
LinkedList<Drawable>();
aryListProcessInfo=
new
ArrayList<String>();
aryListProcessName=
new
ArrayList<String>();
List<RunningAppProcessInfo> apps =
mActivityManager.getRunningAppProcesses();
for
(RunningAppProcessInfo app:apps)
{
//包名
// aryListProcessName.add(app.processName);
programUtil.setProcessName(app.processName);
// 根据进程名，获取应用程序的ApplicationInfo对象
ApplicationInfo tempAppInfo = packageUtil.getApplicationInfo(app.processName);
// 为进程加载图标和程序名称
if
(tempAppInfo !=
null
)
{
linkListProcessIcon.add(tempAppInfo.loadIcon(packageManager));
aryListProcessName.add(tempAppInfo.loadLabel(packageManager).toString());
}
else
{
linkListProcessIcon.add(getApplicationContext().getResources().getDrawable(R.drawable.ic_launcher));
aryListProcessName.add(app.processName);
}
//MemInfo是否可得,不行则用包名代替
if
(!(mProcessMemoryUtil.getMemInfoByPid(app.pid)==
""
))
{
aryListProcessInfo.add(mProcessMemoryUtil.getMemInfoByPid(app.pid));
}
else
{
aryListProcessInfo.add(app.processName);
}
intProcessNum++;
}
tab1_tv1.setText(
"程序数量："
+intProcessNum);
tab1_tv2.setText(
"可用内存："
+fileSize(getAvailableRAM()));
}
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package
com.me.myexplorer;
import
java.util.List;
import
android.content.Context;
import
android.content.pm.ApplicationInfo;
import
android.content.pm.PackageManager;
public
class
PackageUtil
{
// ApplicationInfo 类，保存了普通应用程序的信息，主要是指Manifest.xml中application标签中的信息
private
List<ApplicationInfo> allAppList;
public
PackageUtil(Context context) {
// 通过包管理器，检索所有的应用程序（包括卸载）与数据目录
PackageManager pm = context.getApplicationContext().getPackageManager();
allAppList = pm.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES);
pm.getInstalledPackages(
0
);
}
public
ApplicationInfo getApplicationInfo(String appName) {
if
(appName ==
null
) {
return
null
;
}
for
(ApplicationInfo appinfo : allAppList) {
if
(appName.equals(appinfo.processName)) {
return
appinfo;
}
}
return
null
;
}
}
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