如何在广播公司onReceive中更改静态变量

Question

我想获取每个电话号码的发送状态，所以我定义了一个变量statusMap来记录状态，0表示成功，1表示失败。我在函数onReceive为 statusMap 赋值，但之后 statusMap 的值仍然是空的。如何在函数中更改静态值onReceive

package com.mem.memsms;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Queue;
import android.os.Bundle;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.telephony.SmsManager;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class SendMessage extends Activity {
private EditText editText;
private Button button;
private Intent intent;
private SendBroadcast mSendReceiver;
private HashMap<String, String> hashMap;
private HashMap<String, String> statusMap = new HashMap<String, String>();
private Queue<String> numbers;
String SENT_SMS_ACTION = "SENT_SMS_ACTION";
String DELIVERED_SMS_ACTION = "DELIVERED_SMS_ACTION";
@SuppressWarnings("unchecked")
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_send_message);
    editText = (EditText) this.findViewById(R.id.message);
    intent = getIntent();
    hashMap = (HashMap<String, String>) intent.getSerializableExtra("data");
    numbers = new LinkedList<String>();
    button = (Button) this.findViewById(R.id.sendmessage);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View arg0) {
            // TODO Auto-generated method stub
            numbers.clear();
            editText.setEnabled(false);
            final String text = editText.getText().toString();
            if (text.trim() == "") {
                editText.setHint(R.string.msg_null);
                return;
            }
            Iterator<Entry<String, String>> iter = hashMap.entrySet()
                    .iterator();
            while (iter.hasNext()) {
                Map.Entry<String, String> entry = (Map.Entry<String, String>) iter
                        .next();
                String number = entry.getKey();
                String content = entry.getValue();
                numbers.offer(number);
                Sendmsg(number, content + text);
            }
            intent.putExtra("data2", statusMap);
            setResult(RESULT_OK, intent);
            //Log.i("msg", "statusMap length is" + statusMap.size());
            // back to contacts
            SendMessage.this.finish();
        }
    });
}
private class SendBroadcast extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        String n = numbers.poll();
        switch (getResultCode()) {
        case RESULT_OK:
            Log.i("msg", "c:ok" + n);
            statusMap.put(n, "0");
            break;
        default:
            Log.i("msg", "c:failed" + n);
            statusMap.put(n, "1");
            break;
        }
    }
}
@Override
protected void onPause() {
    // TODO Auto-generated method stub
    this.unregisterReceiver(mSendReceiver);
    super.onPause();
}
@Override
protected void onResume() {
    // TODO Auto-generated method stub
    mSendReceiver = new SendBroadcast();
    IntentFilter mSendFilter = new IntentFilter(SENT_SMS_ACTION);
    this.registerReceiver(mSendReceiver, mSendFilter);
    super.onResume();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.send_message, menu);
    return true;
}
private void Sendmsg(String number, String content) {
    Intent sentIntent = new Intent(SENT_SMS_ACTION);
    PendingIntent sentPI = PendingIntent.getBroadcast(this, 0, sentIntent,
            0);
    //sentIntent.putExtra("status", statusMap);
    SmsManager manager = SmsManager.getDefault();
    manager.sendTextMessage(number, null, content, sentPI, null);
}
}

Answer 1

删除以下内容：

intent.putExtra("data2", statusMap);
        setResult(RESULT_OK, intent);
        //Log.i("msg", "statusMap length is" + statusMap.size());
        // back to contacts
        SendMessage.this.finish();

代码从onClick并将其放入onReceive：

@Override
public void onReceive(Context context, Intent intent) {
    // TODO Auto-generated method stub
    String n = numbers.poll();
    switch (getResultCode()) {
    case RESULT_OK:
        Log.i("msg", "c:ok" + n);
        statusMap.put(n, "0");
        break;
    default:
        Log.i("msg", "c:failed" + n);
        statusMap.put(n, "1");
        break;
    }
    if(hashMap.size()==statusMap.size()){
        intent.putExtra("data2", statusMap);
        SendMessage.this.setResult(RESULT_OK, intent);
        //Log.i("msg", "statusMap length is" + statusMap.size());
        // back to contacts
        SendMessage.this.finish();
   }
}

问题是首先完成onClick事件，即您调用set结果并完成此活动，然后onReceive被调用，因此在更新地图时结果已经发送