泄漏的意图接收器

Question

这是我发送短信的代码.我已经调用了unregisterReceiver(接收器)方法,但我仍然在logcat中收到此错误.

Intent Receiver leaked that was originally register here. Are you missing to call 
unregisterReciever() ?

这是我的代码:

public static void sendSMS(final Context context, final String phoneNumber, final String message) {
    String SENT = "SMS_SENT";
    String DELIVERED = "SMS_DELIVERED";

    PendingIntent sentPI = PendingIntent.getBroadcast(context, 0, new Intent(
            SENT), 0);

    PendingIntent deliveredPI = PendingIntent.getBroadcast(context, 0,
            new Intent(DELIVERED), 0);

    // ---when the SMS has been sent---
     context.registerReceiver(new BroadcastReceiver() {
        @Override
        public void onReceive(Context arg0, Intent arg1) {
            context.unregisterReceiver(this);
            switch (getResultCode()) {
            case Activity.RESULT_OK:
                ContentValues values = new ContentValues();
                values.put("address", phoneNumber);// txtPhoneNo.getText().toString());
                values.put("body", message);
                context.getContentResolver().insert(sentURI, values);
                Toast.makeText(context, "SMS sent", Toast.LENGTH_SHORT).show();
                break;
            case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
                Toast.makeText(context, "Generic failure",
                        Toast.LENGTH_SHORT).show();
                break;
            case SmsManager.RESULT_ERROR_NO_SERVICE:
                Toast.makeText(context, "No service",
                        Toast.LENGTH_SHORT).show();
                break;
            case SmsManager.RESULT_ERROR_NULL_PDU:
                Toast.makeText(context, "Null PDU",
                        Toast.LENGTH_SHORT).show();
                break;
            case SmsManager.RESULT_ERROR_RADIO_OFF:
                Toast.makeText(context, "Radio off",
                        Toast.LENGTH_SHORT).show();
                break;
            }

        }
    }, new IntentFilter(SENT));

    // ---when the SMS has been delivered---
    context.registerReceiver(new BroadcastReceiver() {
        @Override
        public void onReceive(Context arg0, Intent arg1) {
            context.unregisterReceiver(this);
            switch (getResultCode()) {
            case Activity.RESULT_OK:
                Toast.makeText(context, "SMS delivered",
                        Toast.LENGTH_SHORT).show();
                break;
            case Activity.RESULT_CANCELED:
                Toast.makeText(context, "SMS not delivered",
                        Toast.LENGTH_SHORT).show();
                break;
            }

        }


    }, new IntentFilter(DELIVERED));

    SmsManager sms = SmsManager.getDefault();
    sms.sendTextMessage(phoneNumber, null, message, sentPI, deliveredPI);
}

请注意,短信会被发送和传送,而且我在广播接收器上收到的传送报告也是同样的错误.

Answer 1

您每次注册新的匿名实例,BroadcastReceiver然后取消注册新实例,BroadcastReceiver但这将与您注册的实例不同.

您需要将此匿名变量设为类变量,然后在该引用上调用register/unregister.

还要确保您在补充方法中注册/取消注册:

onCreate() / onDestroy()
onResume() / onPause()