java - 如何制作泛型的构造函数

Question

给定下面的代码，我怎样才能构造一个泛型类型的构造函数，以便它可以接受传递给它的任何类

代码:

ServiceCtrl(Context ctx, Class<SPPService> sppServiceClass) {
    this.mCtx = ctx;
    this.mClass = sppServiceClass;
}

public boolean isMyServiceRunning() {
    ActivityManager manager = (ActivityManager) this.mCtx.getSystemService(this.mCtx.ACTIVITY_SERVICE);
    for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
        if (this.mClass.getName().equals(service.service.getClassName())) {
            return true;
        }
    }
    return false;
}

Answer 1

public class ServiceCtrl<E extends Object> {
    private Class<E> mClass;

    ServiceCtrl(Context ctx, Class<E> sppServiceClass) {
        this.mCtx = ctx;
        this.mClass = sppServiceClass;
    }

    public boolean isMyServiceRunning() {
        ActivityManager manager = (ActivityManager) this.mCtx.getSystemService(this.mCtx.ACTIVITY_SERVICE);
        for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
            if (this.mClass.getName().equals(service.service.getClassName())) {
                return true;
            }
        }
        return false;
    }
}