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我有一个有趣的（至少对我而言）问题：

我有一个通知，我会根据需要在我的应用程序中弹出。在我的 Galaxy S II 上一切正常（sprint 的 epic touch 4g，因为那里有不同型号的 S II，我觉得我需要具体说明），并且通知字换行没有问题 - 例如：

this is a notification, but it's too long, 
so it'll show this second line on it's own.

令我惊恐的是，我意识到有些安卓手机没有自动换行，实际上只是在屏幕末尾剪切了我的通知，所以上面的消息会显示为：

this is a notification, but it's too long,

显然，这是行不通的。那么，我该怎么做才能确保始终显示整个消息？

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1 回答 1

0

改写

正如我们之前讨论过的，您希望强制通知的tickerText自动换行。一种方法是将文本分成适当长度的行并为每一行发送通知：

public class Example extends Activity {
    public class AlarmReceiver extends BroadcastReceiver {
        @Override
        public void onReceive(Context context, Intent intent) {
            Log.v("Example", "Alarm received");
            sendNotification();
        }
    }

    AlarmManager alarmManager;
    NotificationManager notificationManager;

    AlarmReceiver alarmReceiver = new AlarmReceiver();
    Notification notification = new Notification(); 
    Intent notificationIntent;
    PendingIntent pendingIntent;
    int tickerIndex = 0;
    List<String> tickerTexts = new ArrayList<String>();

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
        notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

        // Determine the screen width and density, split tickerText appropriately
        String tickerText = "A tickerText that is long enough to cause a word wrap in portrait.";
        tickerTexts.add(tickerText.substring(0, 35));
        tickerTexts.add(tickerText.substring(35));

        notificationIntent = new Intent(this, Example.class);
        pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);

        notification.flags = Notification.FLAG_ONLY_ALERT_ONCE;
        notification.icon = android.R.drawable.star_on;

        sendNotification();
        registerReceiver(alarmReceiver, new IntentFilter("Generic"));
    }

    @Override
    protected void onDestroy() {
        unregisterReceiver(alarmReceiver);
        super.onDestroy();
    }

    public void sendNotification() {
        Log.v("Example", "Send Notification " + tickerIndex);

        notification.tickerText = tickerTexts.get(tickerIndex);
        notification.setLatestEventInfo(this, "Title", "Text " + tickerIndex, pendingIntent);
        notificationManager.cancel(0);
        notificationManager.notify(0, notification);

        tickerIndex++;
        if(tickerIndex < tickerTexts.size()) {
            Log.v("Example", "Setting up alarm");
            PendingIntent alarmPending = PendingIntent.getBroadcast(this, 0, new Intent("Generic"), 0);
            alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime() + 1000, alarmPending);
        }
    }
}

但是你可以看到我跳过了设置的一个组成部分：我假设了适合的文本长度，我没有计算它。为了确定合适的断点，您需要计算屏幕的宽度、字体的缩放大小和密度。您还需要考虑“！！！” 可能比“www”短，具体取决于字体，并且用户可以在横向和纵向之间切换......您可以查看源代码以了解通用 Android 如何分解tickerText。

无论如何，强制tickerText 自动换行可能比压缩原始字符串或向“非包装”电话制造商发送愤怒的信件更复杂。

于 2012-07-22T18:31:16.723 回答