Android - BroadcastReceiver 中的意图丢失字符串

如何解决Android - BroadcastReceiver 中的意图丢失字符串

我想使用 broadcastReceiver 发送带有特定字符串的通知。这是我在 MainActivity 中的函数：`

private void createalarm (int i) throws ParseException {
        AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
        Intent intent = new Intent(this,AlarmReceiver.class);
        intent.putExtra("name",names.get(i));

        PendingIntent pendingIntent = PendingIntent.getbroadcast(this,(int) timeInMillis / 1000),intent,PendingIntent.FLAG_ONE_SHOT
        );

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            alarmManager.setExact(AlarmManager.RTC_WAKEUP,timeInMillis,pendingIntent);
        }
    }

广播接收器代码：

public class AlarmReceiver extends broadcastReceiver {
    @Override
    public void onReceive(Context context,Intent intent) {
        String name = intent.getExtras().getString("name","deafultValue");

        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
            Intent notificationIntent = new Intent(context,MainActivity.class);
            TaskStackBuilder taskStackBuilder = TaskStackBuilder.create(context);
            taskStackBuilder.addNextIntentWithParentStack(notificationIntent);
            PendingIntent pendingIntent = taskStackBuilder.getPendingIntent(50,PendingIntent.FLAG_UPDATE_CURRENT);

            NotificationCompat.Builder builder = new NotificationCompat.Builder(context,"EventStartChannel")
                    .setSmallIcon(R.drawable.ic_stat_name)
                    .setContentTitle(name)
                    .setContentText(name)
                    .setColor(Color.argb(255,255,0))
                    .setAutoCancel(true)
                    .setContentIntent(pendingIntent)
                    .setPriority(NotificationCompat.PRIORITY_HIGH)
                    .setSound(ringtoneManager.getDefaultUri(ringtoneManager.TYPE_NOTIFICATION));

            notificationmanagerCompat notificationmanager = notificationmanagerCompat.from(context);
            notificationmanager.notify((int) System.currentTimeMillis() / 1000,builder.build());
        }
    }
}

和清单代码：

        <receiver android:name=".OtherClasses.AlarmReceiver"
            android:enabled="true"
            android:exported="false" >

            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED"/>
                <action android:name="android.intent.action.SEND" />
            </intent-filter>

        </receiver>

但有时，当闹钟设置在一天或更长时间后，onReceive 中的附加项是空的并且名称获得默认值。我试过在 extras 中使用 bundle 传递字符串，然后是同样的问题。

解决方法

发送

改变这个：

intent.putExtra("name",names.get(i));

致：

intent.putExtra(android.content.Intent.EXTRA_TEXT,names.get(i));

获取

改变这个：

String name = intent.getExtras().getString("name","deafultValue");

致：

String name = intent.getStringExtra(android.content.Intent.EXTRA_TEXT);