Question

我有一个像这样的Serializable：

public class Main implements Serializable {

    private static final long serialVersionUID = 5053412967314724078L; 
    private ArrayList<Carte> main = new ArrayList<Carte>();


    public Main() {}
    public Main(Carte[] cartes) {
        for (Carte carte:cartes) {
            this.main.add(carte);
        }
    }
    public Carte[] getMain() {
        return (Carte[]) main.toArray();
    }

    public String toString() {
        String result = "";
        for (Carte carte : main) {
            result += carte.toString() + " ";
        }
        return result;
    }
}

我将序列化作为额外的意图发送：

Carte[] cards = ...// Which is initialized elsewhere and been checked, there's no problem with that.
Main mainSerial = new Main(cards);
Intent broadcast = new Intent();
broadcast.setAction("coinchutc.RECUP");
broadcast.putExtra("cards", mainSerial);
Log.d("JoueurAgent", "Sending broadcast " + broadcast.getAction() + " " + mainSerial.toString());
context.sendBroadcast(broadcast);

在日志中我可以正确打印调试消息，也就是说我已经成功构建了可序列化的文件。

然后我尝试接受意图，但没有成功：

在我完成的目标Activity的onCreate（）中：

IntentFilter recupFilter = new IntentFilter();
recupFilter.addAction("coinchutc.RECUP");
registerReceiver(myReceiver, recupFilter);

我创建了BroadcastReceiver类来接收广播：

private class MyReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        Log.d("RejoindrePartieActivity", "receive");
        String action = intent.getAction();
        Log.d("RejoindrePartieActivity", "Receive action " + action);
        if (action.equalsIgnoreCase("coinchutc.RECUP")) {
            Log.d("RejoindrePartieActivity", "RECUP");
            Bundle extras = intent.getExtras();
            if (extras != null) {
                Main main = (Main) extras.getSerializable("cards");
                //String recup = extras.getString("cards");
                Log.d("RejoindrePartieActivity", "Receive " + main.toString());
            }
        }
    }

但它什么也没收到。即使是第一个日志也不会被打印出来。

然后我将serializable改为一个简单的字符串。这一切都奏效了！所以我想知道我是否具有序列化权限，为什么intentfilter甚至无法接收到意图。

提前致谢！

Answer 1

IntentFilter recupFilter = new IntentFilter();
recupFilter.addAction("coinchutc.RECUP");
registerReceiver(myReceiver, recupFilter);

以上代码必须在sendBroadcast()之前调用。在发送Intent之前调用它。

经过SO-

的澄清

Carte class also needs to be `Serializable` and this does work.

IntentFilter无法接收Serializable但适用于String

1 个答案: