我试图让我的应用程序创建一个通知,但这段代码给了我编译错误:
public void makeRing(Context context, boolean notify)
{
if (notify)
{
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(context)
//.setSmallIcon(R.drawable.notification_icon)
.setContentTitle("My notification")
.setContentText("Hello World!");
// Creates an explicit intent for an Activity in your app
Intent resultIntent = new Intent(context, MainActivity.class);
// The stack builder object will contain an artificial back stack for the
// started Activity.
// This ensures that navigating backward from the Activity leads out of
// your application to the Home screen.
TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
// Adds the back stack for the Intent (but not the Intent itself)
stackBuilder.addParentStack(MainActivity.class);
// Adds the Intent that starts the Activity to the top of the stack
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
// mId allows you to update the notification later on (first number)
mNotificationManager.notify(5954, mBuilder.build());
}
它是直接取自 Android 开发者网站的代码。错误出现在“TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);”的行中,其中 create 带有下划线,它表示“对于 TaskStackBuilder 类型,方法 create(Context) 未定义”。
此外,在最后一行 build() 带有下划线,它表示“对于 NotificationCompat.Builder 类型的 build() 方法未定义。
我该如何解决这些?