如何从Class <！ - ？ - >创建新类？

Question

出于好奇。如何从类中创建一个新类，其中构造函数不需要参数？这是一个例子：

public static BroadcastReceiver startBroadcastReceiver(Context context, Class<?> receiverClass, String receiverTag) {
    BroadcastReceiver receiver = null;

    IntentFilter intentFilter = new IntentFilter(receiverTag);

    receiver = new receiverClass(); // <---- What's the correct syntax?

    if (receiver != null && intentFilter != null) {
        context.registerReceiver(receiver, intentFilter);
    }

    return receiver;
}

以下是我的称呼方式：

MyTools.startBroadcastReceiver(context, MyBroadcastReceiver, MyBroadcastReceiver.TAG);

提前致谢。

Answer 1

使用此：

try{
    receiver = (BroadcastReceiver) receiverClass.newInstance();
}catch(Exception e){
    //do stuff
}

你会称之为

MyTools.startBroadcastReceiver(context, MyBroadcastReceiver.class, MyBroadcastReceiver.TAG);