构建通知时出错

Question

我正在使用本教程http://www.vogella.com/articles/AndroidNotifications/article.html，我想构建通知

//准备如果被触发的意图     //选择通知

Intent intent = new Intent(this, NotificationReceiver.class);
PendingIntent pIntent = PendingIntent.getActivity(this, 0, intent, 0);

// Build notification
// Actions are just fake
Notification noti = new Notification.Builder(this)
        .setContentTitle("New mail from " + "test@gmail.com")
        .setContentText("Subject")
        .setSmallIcon(R.drawable.icon)
        .setContentIntent(pIntent)
        .addAction(R.drawable.icon, "Call", pIntent)
        .addAction(R.drawable.icon, "More", pIntent)
        .addAction(R.drawable.icon, "And more", pIntent).build();


NotificationManager notificationManager = 
  (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

// Hide the notification after its selected
noti.flags |= Notification.FLAG_AUTO_CANCEL;

notificationManager.notify(0, noti); 

我在行addAction中有错误，eclipse说the method addaction(ing, String pendingintent) is undefined for the type notification.builder

Answer 1

您需要将sdkTargetVersion <uses-sdk>元素中的AndroidManifest.xml设置为16或更高。旧版Android版不存在addAction(...)方法。

Answer 2

你必须在你的项目lib文件夹android-support-v4.jar中使用/lib/android-support-v4.jar文件并添加它

1. 你的ptoject ----＆gt;本地（Alt +） - ＆gt;构建路径 - ＆gt;库 - ＆gt;添加jar - ＆gt;从lib文件夹中选择android-support-v4.jar - ＆GT;确定

2. 您的ptoject ----＆gt;专有权（Alt +） - ＆gt;构建路径 - ＆gt;订单＆amp;出口 - ＆GT;全选 - ＆gt;确定。

使用此代码运行在＆lt; = 11 API LEVEL。

---

<强>编辑： 您收到错误，因为以下方法需要MIN 11 API级别

.setContentTitle("My notification")
.setContentText("Hello World!");

及以下方法需要MIN API LEVEL 16：

.addAction(R.drawable.ic_launcher, "call", pIntent)
.addAction(R.drawable.ic_launcher, "more", pIntent)
.addAction(R.drawable.ic_launcher, "add more", pIntent)

所以你的解决方案就是以这种方式使用：



Intent intent = new Intent(this, TestSettings.class);
        PendingIntent pIntent = PendingIntent.getActivity(this, 0, intent, 0);

        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
                this).setSmallIcon(R.drawable.ic_launcher)
                .addAction(R.drawable.ic_launcher, "call", pIntent)
                .addAction(R.drawable.ic_launcher, "more", pIntent)
                .addAction(R.drawable.ic_launcher, "add more", pIntent)
                .setContentTitle("My notification")
                .setContentText("Hello World!");
        // Creates an explicit intent for an Activity in your app
        Intent resultIntent = new Intent(this, TestSettings.class);

        TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);

        stackBuilder.addParentStack(TestSettings.class);

        stackBuilder.addNextIntent(resultIntent);
        PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0,
                PendingIntent.FLAG_UPDATE_CURRENT);
        mBuilder.setContentIntent(resultPendingIntent);
        NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

        mNotificationManager.notify(100, mBuilder.build());

确保您添加了android-support-v4.jar jar文件

Answer 3

您使用的是支持库的错误版本。在r13中引入了AddAction（可能更早）。