获取有关所有正在运行的进程的信息 [关闭]

Question

我有一个想法为android 制作任务管理器。谁能告诉我如何在android 中获取所有当前正在运行的进程？

Answer 1

使用下面的代码可以得到正在运行的进程列表：-

ActivityManager actvityManager = (ActivityManager)
this.getSystemService( ACTIVITY_SERVICE );
List<RunningAppProcessInfo> procInfos = actvityManager.getRunningAppProcesses();

for(RunningAppProcessInfo runningProInfo:procInfos){

        Log.d("Running Processes", "()()"+runningProInfo.processName);
}

更多信息您可以访问this link.

要根据包名称获取应用程序名称，请使用 PackageManager 类。

final PackageManager pkgmgr = getApplicationContext().getPackageManager();
ApplicationInfo appinfo;
try {
    appinfo = pkgmgr.getApplicationInfo( this.getPackageName(), 0);
} catch (final NameNotFoundException e) {
    appinfo = null;
}
final String applicationName = (String) (appinfo != null ? pkgmgr.getApplicationLabel(appinfo) : "(unknown)");

根据 PID 获取应用名称：-

public static String getAppNameByPID(Context context, int pid){
    ActivityManager manager 
               = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);

    for(RunningAppProcessInfo processInfo : manager.getRunningAppProcesses()){
        if(processInfo.pid == pid){
            return processInfo.processName;
        }
    }
    return "";
}

最后检查应用是否为系统应用：-

private boolean isSystemPackage(PackageInfo pkgInfo) {
        return (pkgInfo.applicationInfo.flags & 
                ApplicationInfo.FLAG_SYSTEM) != 0;
    }