安卓任务 killer

Question

我正在尝试编写一个简单的任务 killer 。我知道我不应该在 Android 中终止任务，但我很想尝试这样的事情。我有以下代码:

List<RunningAppProcessInfo> procInfo = activityManager.getRunningAppProcesses();
for (int i = 0; i < procInfo.size(); i++) {
    Log.v("proces " + i,procInfo.get(i).processName + " pid:" + procInfo.get(i).pid + " importance: " + procInfo.get(i).importance + " reason: " + procInfo.get(i).importanceReasonCode);
    //First I display all processes into the log
}
for (int i = 0; i < procInfo.size(); i++) {
    RunningAppProcessInfo process = procInfo.get(i);
    int importance = process.importance;
    int pid = process.pid;
    String name = process.processName;
    if (name.equals("manager.main")) {
        //I dont want to kill this application
        continue;
    }
    if (importance == RunningAppProcessInfo.IMPORTANCE_SERVICE) {
        //From what I have read about importances at android developers, I asume that I can safely kill everithing except for services, am I right?
        Log.v("manager","task " + name + " pid: " + pid + " has importance: " + importance + " WILL NOT KILL");
        continue;                       
    }
    Log.v("manager","task " + name + " pid: " + pid + " has importance: " + importance + " WILL KILL");
    android.os.Process.killProcess(procInfo.get(i).pid);
}   
procInfo = activityManager.getRunningAppProcesses();
//I get a new list with running tasks
for (int i = 0; i < procInfo.size(); i++) {
    Log.v("proces after killings" + i,procInfo.get(i).processName + " pid:" + procInfo.get(i).pid + " importance: " + procInfo.get(i).importance + " reason: " + procInfo.get(i).importanceReasonCode);
}

我这里的问题是，当我执行这段代码时，我首先得到所有任务的列表，没关系。比我在日志中看到的几行:

Sending signal. pid: (processId) SIG: 9

我认为那是死亡的信号。但是在我的代码末尾，当我显示所有正在运行的进程时，列表和以前一样，没有任务被杀死。知道为什么吗？谢谢!

Answer 1

您不能以这种方式终止其他任务，因为内核会强制执行权限。试试这个:

ActivityManager activityManager = (ActivityManager) context.getSystemService("activity");
activityManager.restartPackage(packageName);

您需要 list 中的以下权限:

<uses-permission android:name="android.permission.RESTART_PACKAGES" />
<uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />

编辑:

实际上 restartPackage 已被弃用。请改用 killBackgroundProcesses()!