AppMonitor.java 文件源码

public void start(Context context, List<App> appsToMonitor) {
    this.context = context;
    this.appsToMonitor = appsToMonitor;
    this.lastSeenRunningApps = new ArrayList();
    IntentFilter filter = new IntentFilter();
    filter.addAction("android.intent.action.SCREEN_OFF");
    filter.addAction("android.intent.action.SCREEN_ON");
    filter.addAction(ACTION_MONITOR_APPS);
    this.receiver = new AppMonitorReceiver();
    context.registerReceiver(this.receiver, filter);
    if (((PowerManager) context.getSystemService("power")).isScreenOn()) {
        startMonitoring();
    }
}