我正在尝试用 2 个按钮发出通知：
有没有人知道如何捕捉按钮点击事件（记住 Activity 已暂停）？
【问题讨论】：
标签： android android-notifications
我很高兴发布它！工作了一夜之后，我发现了一些东西。所以，我们开始吧！
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");</p>
//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.对于我的要求，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。
关于取消通知我把你重定向到这里
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
【讨论】：
这里有一个完整的例子
//Add this code to onCreate or some onclick Buttton
NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
NotificationCompat.Builder builder = new NotificationCompat.Builder(getApplicationContext());
long when = System.currentTimeMillis();
builder.setSmallIcon(R.drawable.ic_notification);
Intent notificationIntent = new Intent(getApplicationContext(), notificationActivity.class).putExtra("notification", "1");
PendingIntent contentIntent = PendingIntent.getActivity(getApplicationContext(), 1, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
builder.setContentIntent(contentIntent);
Notification notification = builder.getNotification();
notification.when = when;
RemoteViews remoteViews = new RemoteViews(getApplicationContext().getPackageName(), R.layout.notification_view);
remoteViews.setTextViewText(R.id.tvName, "New Name");
listener(remoteViews,getApplicationContext());
notification.contentView = remoteViews;
notification.flags |= Notification.FLAG_AUTO_CANCEL;
manager.notify(1, notification);
然后你就可以定义监听方法了：
public void listener(RemoteViews remoteViews, Context context) {
// you have to make intetns for each action (your Buttons)
Intent intent = new Intent("Accept");
Intent intent2 = new Intent("Reject");
PendingIntent pendingIntent = PendingIntent.getBroadcast(context,1,intent,0);
PendingIntent pendingIntent2 = PendingIntent.getBroadcast(context,1,intent2,0);
// add actions here !
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("Accept");
intentFilter.addAction("Reject");
BroadcastReceiver receiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals("Accept")){
Toast.makeText(context, "Accepted !!", Toast.LENGTH_SHORT).show();
} else if(intent.getAction().equals("Reject")) {
Toast.makeText(context, "Rejected !!", Toast.LENGTH_SHORT).show();
}
}
};
context.registerReceiver(receiver,intentFilter);
remoteViews.setOnClickPendingIntent(R.id.ivRequest,pendingIntent);
remoteViews.setOnClickPendingIntent(R.id.ivReject,pendingIntent2);
}
这里是通知视图布局，用于定制您的通知。
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="16dp">
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:text="Request from "
/>
<TextView
android:id="@+id/tvName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginStart="15dp"
android:layout_toRightOf="@id/textView"
android:text="Amin"
/>
<ImageView
android:id="@+id/ivRequest"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_alignParentEnd="true"
android:layout_centerVertical="true"
android:src="@drawable/notification"
/>
<ImageView
android:id="@+id/ivReject"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_marginEnd="10dp"
android:layout_toLeftOf="@id/ivRequest"
android:layout_centerVertical="true"
android:src="@drawable/trash"
/>
</RelativeLayout>
【讨论】：
builder.setCustomContentView(remoteViews); 会比 notification.contentView = remoteViews; 好，builder.build() 由于弃用而优于 builder.getNotification()。 （您必须为这些更改重新排列代码）。
对于 ICS，这个问题很容易回答，因为所需的行为反映了默认通知：您可以关闭将通知向右滑动，您可以定义哪个活动 在用户按下它时将其发送到，只需使用PendingIntent：
// The PendingIntent to launch our activity if the user selects this
// notification. Note the use of FLAG_CANCEL_CURRENT so that, if there
// is already an active matching pending intent, cancel it and replace
// it with the new array of Intents.
PendingIntent contentIntent = PendingIntent.getActivities(this, 0,
makeMessageIntentStack(this, from, message), PendingIntent.FLAG_CANCEL_CURRENT);
代码取自http://developer.android.com/guide/topics/ui/notifiers/notifications.html
【讨论】：
如果您想为按钮分配特定的意图：
views.setOnClickPendingIntent(R.id.your_button_id, pendingIntent);
我想当按钮被点击时你只需要发送一个意图，所以你必须避免设置主要的通知意图
notification.contentIntent = yourPendingIntent;
否则（如果您像往常一样设置“notification.contentIntent = pendingIntent;”）两个意图都将被调用，这可能不是您想要的/用户期望的。
如果您仍想按下通知的其他部分来调用该一般意图（或任何其他），您可以使用与上述相同的按视图分配意图的方法。别忘了设置
android:clickable="true"
到您想要跟踪 onClick() 的任何视图。
您可以通过他们调用的活动中的额外内容来跟踪这些意图。 如果您调用您的主/启动器活动，那么您将在此处跟踪它们（因为它来自此方法的 javadoc）：
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
Bundle data = intent.getExtras();
if (data != null && data.containsKey(YOUR_INTENT_KEY_SOURCE_CONSTANT)) {
// process your notification intent
}
// go on with smth else
}
【讨论】：
您可以通过为您的Notification.Builder 设置操作并为每个操作定义PendingIntent 来简单地在您的Notification 中添加操作按钮
下面是示例代码：
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.notification_icon)
.setContentTitle("My notification")
.setContentText("Hello World!")
.addAction(R.drawable.action_posetive,"posetive",PendingIntent.getActivity(0,intent,0))
.addAction(R.drawable.action_clear,"clear",PendingIntent.getActivity(0,intent,0));
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(0, mBuilder.build());
【讨论】：
对我来说，这非常有效.. 我会写下整个例子.. 这是用于通知创建
public void createNotification2(String aMessage) {
final int NOTIFY_ID = 11;
String name = getString(R.string.app_name);
String id = getString(R.string.app_name); // The user-visible name of the channel.
String description = getString(R.string.app_name); // The user-visible description of the channel.
NotificationCompat.Builder builder;
if (notifManager == null) {
notifManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
int importance = NotificationManager.IMPORTANCE_HIGH;
NotificationChannel mChannel = notifManager.getNotificationChannel(id);
if (mChannel == null) {
mChannel = new NotificationChannel(id, name, importance);
mChannel.setDescription(description);
mChannel.enableVibration(true);
mChannel.setLightColor(getColor(R.color.colorPrimaryDark));
mChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
notifManager.createNotificationChannel(mChannel);
}
} else {
}
Intent Off_broadcastIntent = new Intent(this, Database_Update.class);
Off_broadcastIntent.setAction("on");
Off_broadcastIntent.putExtra("toastMessage", "1");
PendingIntent Off_actionIntent = PendingIntent.getService(this, 0, Off_broadcastIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Intent on_broadcastIntent = new Intent(this, Database_Update.class);
on_broadcastIntent.setAction("off");
on_broadcastIntent.putExtra("toastMessage", "0");
PendingIntent on_actionIntent = PendingIntent.getService(this, 0, on_broadcastIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Intent cancel_broadcastIntent = new Intent(this, Database_Update.class);
cancel_broadcastIntent.setAction("cancel");
cancel_broadcastIntent.putExtra("toastMessage", "close");
PendingIntent cancel_actionIntent = PendingIntent.getService(this, 0, cancel_broadcastIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Intent content_intent = new Intent(this, Status_Page.class);
content_intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, content_intent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this, id)
.setSmallIcon(android.R.drawable.ic_popup_reminder)
.setContentTitle(name)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setContentIntent(pendingIntent)
.setAutoCancel(false)
.setVibrate(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400})
.addAction(R.drawable.block, "ON", Off_actionIntent)
.addAction(R.drawable.notification, "OFF", on_actionIntent)
.addAction(R.drawable.clear, "CLOSE", cancel_actionIntent);
Notification notification = mBuilder.build();
notification.flags = Notification.FLAG_NO_CLEAR|Notification.FLAG_ONGOING_EVENT;
notifManager.notify(11, notification);
}
在 Android 清单中
<service android:name=".Database_Update"></service>
这是服务类
public class Database_Update extends Service {
String result="";
Realm realm;
BlockList blockList;
@Override
public void onCreate() {
try {
RealmConfiguration config = new RealmConfiguration.Builder()
.name("notification.realm")
.schemaVersion(1)
.deleteRealmIfMigrationNeeded()
.build();
realm = Realm.getInstance(config);
} catch (Exception e) {
Log.d("Error Line Number", Log.getStackTraceString(e));
}
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
//Toast.makeText(this, "service starting", Toast.LENGTH_SHORT).show();
Log.d("SERVICE","SERVICE CHECKING");
result=intent.getStringExtra("toastMessage");
Log.d("SERVICE",result);
if (realm!=null){
Log.d("SERVICE","realm working");
}else {
Log.d("SERVICE","Realm not working");
}
blockList=realm.where(BlockList.class).equalTo("package_name", "BLOCK_ALL").findFirst();
try {
Log.d("SERVICE",blockList.getStatus());
} catch (Exception e) {
Log.d("Error Line Number", Log.getStackTraceString(e));
}
realm.beginTransaction();
if (result.equals("1")){
if (blockList==null){
BlockList blockList_new=realm.createObject(BlockList.class);
blockList_new.setPackage_name("BLOCK_ALL");
blockList_new.setStatus("yes");
}else {
blockList.setStatus("yes");
}
Log.d("SERVICE","BLOCKING NOTIFICATION");
Toast.makeText(this, "BLOCKING", Toast.LENGTH_SHORT).show();
}else if (result.equals("0")){
if (blockList==null){
BlockList blockList_new=realm.createObject(BlockList.class);
blockList_new.setPackage_name("BLOCK_ALL");
blockList_new.setStatus("no");
}else {
blockList.setStatus("no");
}
Log.d("SERVICE","ALLOW NOTIFICATION");
Toast.makeText(this, "ALLOW NOTIFICATION", Toast.LENGTH_SHORT).show();
}else if (result.equals("close")){
NotificationManager manager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
manager.cancel(11);
Log.d("SERVICE","REMOVING");
Toast.makeText(this, "CLOSED", Toast.LENGTH_SHORT).show();
}
realm.commitTransaction();
return START_STICKY;
}
@Override
public IBinder onBind(Intent intent) {
// We don't provide binding, so return null
return null;
}
@Override
public void onDestroy() {
if (realm!=null){
realm.close();
}
Toast.makeText(this, "REMOVING", Toast.LENGTH_SHORT).show();
}
}
【讨论】：