自定义通知中按钮的事件 OnClick

Question

我有一个带有按钮的自定义通知。要设置通知并在我的按钮上使用事件 OnClick，我使用了以下代码：

//Notification and intent of the notification 
Notification notification = new Notification(R.drawable.stat_notify_missed_call,
            "Custom Notification", System.currentTimeMillis());

Intent mainIntent = new Intent(getBaseContext(), NotificationActivity.class);
PendingIntent pendingMainIntent = PendingIntent.getActivity(getBaseContext(),
    0, mainIntent , 0);
notification.contentIntent = pendingMainIntent;

//Remoteview and intent for my button
RemoteViews notificationView = new RemoteViews(getBaseContext().getPackageName(),
    R.layout.remote_view_layout);

Intent activityIntent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:190"));
PendingIntent pendingLaunchIntent = PendingIntent.getActivity(getBaseContext(), 0,
            activityIntent, PendingIntent.FLAG_UPDATE_CURRENT);

notificationView.setOnClickPendingIntent(R.id.button1,
    pendingLaunchIntent);

notification.contentView = notificationView;

notificationManager.notify(CUSTOM_NOTIFICATION_ID, notification);

使用此代码，我有一个带有自定义布局的自定义通知...但我无法单击按钮！每次我尝试单击按钮时，我都会单击整个通知，因此脚本会启动“mainIntent”而不是“activityIntent”。

我在互联网上读到此代码不适用于所有终端。我已经在模拟器和 HTC Magic 上尝试过，但我总是遇到同样的问题：我无法点击按钮！

我的代码是对的吗？有人可以帮助我吗？

谢谢，

西蒙娜

Answer 1

我正在我的 MyActivity.java 类中编写代码，该类扩展了 android.app.Activity

它创建一个自定义通知，当用户单击按钮时它会发送一个broadcast。 有一个广播接收器接收broadcast。

private void createDownloadNotification() {
        Intent closeButton = new Intent("Download_Cancelled");
        closeButton.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);

        PendingIntent pendingSwitchIntent = PendingIntent.getBroadcast(this, 0, closeButton, 0);

        RemoteViews notificationView = new RemoteViews(getPackageName(), R.layout.widget_update_notification);

        NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(this).setSmallIcon(R.drawable.ic_launcher).setTicker("Ticker Text").setContent(notificationView);
        notificationView.setProgressBar(R.id.pb_progress, 100, 12, false);
        notificationView.setOnClickPendingIntent(R.id.btn_close, pendingSwitchIntent);

        notificationManager.notify(1, builder.build());

    }


public static class DownloadCancelReceiver extends BroadcastReceiver {

        @Override
        public void onReceive(Context context, Intent intent) {

            System.out.println("Received Cancelled Event");
        }
    }

在AndroidManifest.xml注册接收者

<receiver android:name=".MainActivity$DownloadCancelReceiver" android:exported="false">
            <intent-filter>
                <action android:name="Download_Cancelled" />
            </intent-filter>
        </receiver>

由于是内部类所以必须使用$ 符号

小部件 xml 在这里

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:gravity="center"
    android:orientation="horizontal" >

    <Button
        android:id="@+id/btn_close"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Close Me" />

    <ProgressBar
        android:id="@+id/pb_progress"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

Answer 2

看看这个

1. 为您的通知创建一个 xml 布局文件。

2. 使用 Notification.Builder 创建通知。添加您想要的所有内容（图标、声音等）后，请执行以下操作：

   //R.layout.notification_layout is from step 1
   
   RemoteViews contentView=new RemoteViews(ctx.getPackageName(), R.layout.notification_layout);
   
   setListeners(contentView);//look at step 3
   
   notification.contentView = contentView;
   

3. 创建一个方法setListeners。在这个方法中你必须这样写：

   //HelperActivity will be shown at step 4
   
   Intent radio=new Intent(ctx, packagename.youractivity.class);  
   radio.putExtra("AN_ACTION", "do");//if necessary
   
   PendingIntent pRadio = PendingIntent.getActivity(ctx, 0, radio, 0);
   //R.id.radio is a button from the layout which is created at step 2                  view.setOnClickPendingIntent(R.id.radio, pRadio); 
   
   //Follows exactly my code!
   Intent volume=new Intent(ctx, tsapalos11598712.bill3050.shortcuts.helper.HelperActivity.class);
   volume.putExtra("DO", "volume");
   
   //HERE is the whole trick. Look at pVolume. I used 1 instead of 0.
   PendingIntent pVolume = PendingIntent.getActivity(ctx, 1, volume, 0);
   view.setOnClickPendingIntent(R.id.volume, pVolume);
   

4. 为了满足我的要求，我使用了一个响应意图的 HelperActivity。但对你来说，我认为没有必要。

如果你想要完整的源代码，你可以浏览它或者从我的 git repo 下载它。代码是供个人使用的，所以不要指望用大量的cmets来阅读华丽的代码。 https://github.com/BILLyTheLiTTle/AndroidProject_Shortcuts

以上所有内容，回答了从不同按钮捕获事件的问题。

关于取消通知我将您重定向到这里 (How to clear a notification in Android)。请记住在第一次调用通知时使用您在通知方法中解析的id

Answer 3

似乎 setOnClickPendingIntent 在集合中使用时不起作用。

所以尝试 setPendingIntentTemplate 而不是 setOnClickPendingIntent。欲了解更多信息，请点击 android 开发者链接...

Click here for More Detail - Goto Android Developer Site.

Answer 4

您需要创建服务来检测点击事件：例如创建NotificationIntentService.class并输入以下代码：

public class NotificationIntentService extends IntentService {

    /**
     * Creates an IntentService.  Invoked by your subclass's constructor.
     */
    public NotificationIntentService() {
        super("notificationIntentService");
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        switch (intent.getAction()) {
            case "left":
                android.os.Handler leftHandler = new android.os.Handler(Looper.getMainLooper());
                leftHandler.post(new Runnable() {
                    @Override
                    public void run() {
                        Toast.makeText(getBaseContext(),
                                "You clicked the left button", Toast.LENGTH_LONG).show();
                    }
                });
                break;
            case "right":
                android.os.Handler rightHandler = new android.os.Handler(Looper.getMainLooper());
                rightHandler.post(new Runnable() {
                    @Override
                    public void run() {
                        Toast.makeText(getBaseContext(), "You clicked the right button", Toast.LENGTH_LONG).show();
                    }
                });
                break;
        }
    }
}

将此方法添加到您的活动中：

private void sendNotification() {

    RemoteViews expandedView = new RemoteViews(getPackageName(), R.layout.view_expanded_notification);
    expandedView.setTextViewText(R.id.timestamp, DateUtils.formatDateTime(this, System.currentTimeMillis(), DateUtils.FORMAT_SHOW_TIME));
    expandedView.setTextViewText(R.id.notification_message, mEditText.getText());
    // adding action to left button
    Intent leftIntent = new Intent(this, NotificationIntentService.class);
    leftIntent.setAction("left");
    expandedView.setOnClickPendingIntent(R.id.left_button, PendingIntent.getService(this, 0, leftIntent, PendingIntent.FLAG_UPDATE_CURRENT));
    // adding action to right button
    Intent rightIntent = new Intent(this, NotificationIntentService.class);
    rightIntent.setAction("right");
    expandedView.setOnClickPendingIntent(R.id.right_button, PendingIntent.getService(this, 1, rightIntent, PendingIntent.FLAG_UPDATE_CURRENT));

    RemoteViews collapsedView = new RemoteViews(getPackageName(), R.layout.view_collapsed_notification);
    collapsedView.setTextViewText(R.id.timestamp, DateUtils.formatDateTime(this, System.currentTimeMillis(), DateUtils.FORMAT_SHOW_TIME));

    NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
            // these are the three things a NotificationCompat.Builder object requires at a minimum
            .setSmallIcon(R.drawable.ic_pawprint)
            .setContentTitle(NOTIFICATION_TITLE)
            .setContentText(CONTENT_TEXT)
            // notification will be dismissed when tapped
            .setAutoCancel(true)
            // tapping notification will open MainActivity
            .setContentIntent(PendingIntent.getActivity(this, 0, new Intent(this, MainActivity.class), 0))
            // setting the custom collapsed and expanded views
            .setCustomContentView(collapsedView)
            .setCustomBigContentView(expandedView)
            // setting style to DecoratedCustomViewStyle() is necessary for custom views to display
            .setStyle(new android.support.v7.app.NotificationCompat.DecoratedCustomViewStyle());

    // retrieves android.app.NotificationManager
    NotificationManager notificationManager = (android.app.NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    notificationManager.notify(0, builder.build());
}

Answer 5

似乎 setOnClickPendingIntent 在集合内使用时不起作用：

http://developer.android.com/reference/android/widget/RemoteViews.html#setOnClickPendingIntent(int,%20android.app.PendingIntent)

尝试改用 setPendingIntentTemplate。