究竟如何使用Notification.Builder

Question

我发现我使用了一种不赞成使用的方法(notification.setLatestEventInfo())

它说使用Notification.Builder.

• 我该如何使用它？

当我尝试创建一个新实例时,它告诉我:

Notification.Builder cannot be resolved to a type

Answer 1

Notification.Builder API 11或NotificationCompat.Builder API 1

这是一个用法示例.

Intent notificationIntent = new Intent(ctx, YourClass.class);
PendingIntent contentIntent = PendingIntent.getActivity(ctx,
        YOUR_PI_REQ_CODE, notificationIntent,
        PendingIntent.FLAG_CANCEL_CURRENT);

NotificationManager nm = (NotificationManager) ctx
        .getSystemService(Context.NOTIFICATION_SERVICE);

Resources res = ctx.getResources();
Notification.Builder builder = new Notification.Builder(ctx);

builder.setContentIntent(contentIntent)
            .setSmallIcon(R.drawable.some_img)
            .setLargeIcon(BitmapFactory.decodeResource(res, R.drawable.some_big_img))
            .setTicker(res.getString(R.string.your_ticker))
            .setWhen(System.currentTimeMillis())
            .setAutoCancel(true)
            .setContentTitle(res.getString(R.string.your_notif_title))
            .setContentText(res.getString(R.string.your_notif_text));
Notification n = builder.build();

nm.notify(YOUR_NOTIF_ID, n);

Answer 2

这是在API 11中,因此如果您正在开发3.0之前的任何内容,则应继续使用旧API.

更新:NotificationCompat.Builder类已添加到支持包中,因此我们可以使用它来支持API级别v4及更高版本:

http://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder.html

Answer 3

除了选定的答案,这里还有NotificationCompat.Builder来自Source Tricks的类的一些示例代码:

// Add app running notification  

    private void addNotification() {



    NotificationCompat.Builder builder =  
            new NotificationCompat.Builder(this)  
            .setSmallIcon(R.drawable.ic_launcher)  
            .setContentTitle("Notifications Example")  
            .setContentText("This is a test notification");  

    Intent notificationIntent = new Intent(this, MainActivity.class);  
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent,   
            PendingIntent.FLAG_UPDATE_CURRENT);  
    builder.setContentIntent(contentIntent);  

    // Add as notification  
    NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);  
    manager.notify(FM_NOTIFICATION_ID, builder.build());  
}  

// Remove notification  
private void removeNotification() {  
    NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);  
    manager.cancel(FM_NOTIFICATION_ID);  
}