Question

在下面发布的代码中，我创建了一个自定义布局的通知。通知的布局包含三个操作按钮。

我现在遇到的问题是，我无法引用代码中的任何按钮，以便我可以根据单击的操作按钮导航到另一个活动。我想要做的是Action button 1 单击，然后Activity 1显示，单击Action button 2，然后显示Activity 2，依此类推。

请告诉我如何在通知的自定义布局中引用视图？

码：

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Using RemoteViews to bind custom layouts into Notification
        RemoteViews remoteViews = new RemoteViews(getPackageName(), R.layout.layout_notification);
        String notification_title = "Notification_Title";
        String notification_text = "Notification_Text";

        // Open NotificationView Class on Notification Click
        Intent intent = new Intent(this, NotificationReply.class);
        // Send data to NotificationView Class
        intent.putExtra("title", notification_title);
        intent.putExtra("text", notification_text);
        // Open NotificationView.java Activity
        PendingIntent pIntent = PendingIntent.getActivity(this, 0, intent,PendingIntent.FLAG_UPDATE_CURRENT);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
                // Set Icon
                .setSmallIcon(R.mipmap.ic_launcher)
                // Set Ticker Message
                .setTicker("Ticker")
                // Dismiss Notification
                .setAutoCancel(true)
                // Set PendingIntent into Notification
                .setContentIntent(pIntent)
                // Set RemoteViews into Notification
                .setContent(remoteViews);

        Intent intentAction1 = new Intent(this, ActAction1.class);
        PendingIntent pendingIntentActAction1 = PendingIntent.getBroadcast(this, 1,intentAction1, PendingIntent.FLAG_UPDATE_CURRENT);
        remoteViews.setOnClickPendingIntent(R.id.btn_action1, pendingIntentActAction1);

        Intent intentAction2 = new Intent(this, ActAction2.class);
        PendingIntent pendingIntentActAction2 = PendingIntent.getBroadcast(this, 2,intentAction2, PendingIntent.FLAG_UPDATE_CURRENT);
        remoteViews.setOnClickPendingIntent(R.id.btn_action2, pendingIntentActAction2);

        Intent intentAction3 = new Intent(this, ActAction3.class);
        PendingIntent pendingIntentActAction3 = PendingIntent.getBroadcast(this, 3,intentAction3, PendingIntent.FLAG_UPDATE_CURRENT);
        remoteViews.setPendingIntentTemplate(R.id.btn_action3, pendingIntentActAction3);

        // Create Notification Manager
        NotificationManager notificationmanager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

        // Build Notification with Notification Manager
        notificationmanager.notify(0, builder.build());
    }
}

Answer 1

您必须使用RemoteViews#setOnClickPendingIntent() API：

相当于调用 setOnClickListener（android.view.View.OnClickListener）来启动提供的 PendingIntent 。


    Intent firstIntent = new Intent(context, FirstActivity.class);
    PendingIntent firstPendingIntent = PendingIntent.getBroadcast(this, 0, firstIntent, 0);

    RemoteViews notificationView = ...
    notificationView.setOnClickPendingIntent(R.id.first_button, firstPendingIntent);

Answer 2

导航的关键成功是使用正确的待处理意图，并为 requestCode 使用不同的值。

您可以在broadcastReceiver中接收事件，以这种方式构建待处理的意图（例如，使用params）：

private PendingIntent buildPendingIntent(String someurl) {
        Intent intent= new Intent(mContext, SomeReceiver.class);
        final Uri uri = Uri.parse(someurl);
        intent.setData(uri);
        intent.setAction(Intent.ACTION_VIEW);
        intent.putExtra(KEY, VALUE)

        return PendingIntent.getBroadcast(mContext.getApplicationContext(),
                CONSTANT_FOR_THIS_INTENT_TYPE, intent,
                PendingIntent.FLAG_CANCEL_CURRENT);
    }

或者您可以通过待定意图导航到活动：

private PendingIntent buildPendingIntent2() {
        Intent intent = new Intent(mContext, SomeActivity.class);
        intent.putExtra(KEY, VALUE);
        settingsIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

        return PendingIntent.getActivity(mContext.getApplicationContext(),
                                         OTHER_CONSTANT_FOR_OTHER_ACTION,
                                         intent, PendingIntent.FLAG_UPDATE_CURRENT);
    }

请注意，CONSTANT_FOR_THIS_INTENT_TYPE和OTHER_CONSTANT_FOR_OTHER_ACTION 必须具有不同的值

在你有这个待定意图后，你应该将它们附加到你的观点：

view.setOnClickPendingIntent(com.app.btn1, buildPendingIntent1());
view.setOnClickPendingIntent(com.app.btn2, buildPendingIntent2());

Answer 3

您必须使用RemoteViews#setOnClickPendingIntent() API：

我错了你试图用 PendingIntent.getBroadcast（）启动一个只发送广播消息的活动，所以理想情况下广播接收器应该注册相同的意图过滤器动作。在您的情况下，理想情况下应该是PendingIntent.getActivity

现在您可以使用以下待处理意图启动标志值不正确我可以为其他人假设，因此未触发的意图未被触发。

    Intent firstIntent = new Intent(context, FirstActivity.class);
    PendingIntent pendingIntent = PendingIntent.getActivity(appContext, 101, firstIntent,
                    PendingIntent.FLAG_UPDATE_CURRENT); // For opening activity ideally this should work

如果这不起作用，您可以尝试发送广播并收听广播，以验证是否也发送了广播： -

PendingIntent pendingIntent = PendingIntent.getBroadcast(appContext, 0, firstIntent, PendingIntent.FLAG_ONE_SHOT); // for sending broadcast and listens in broadcast reciever

如何在自定义通知中引用视图

3 个答案: