android - 如何在通知点击时转到特定 Activity ？

Question

有几个通知，点击通知我想去特定的 Activity 。假设出现奖励通知，点击将转到 RewardActivity 并添加新 friend ，然后单击 newFriend 通知将转到 friendlistActivity，无论应用程序是在前台还是后台。

但在我的例子中，如果有任何通知出现，它将转到相同的 Activity 而不是不同的 Activity 。

private void handleDataMessage(String noti_title,String noti_message,String noti_click_action) {

    try {

        Intent intent = new Intent(this, RewardActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        intent.putExtra("title", noti_title);
        ByteArrayOutputStream _bs = new ByteArrayOutputStream();
        //image.compress(Bitmap.CompressFormat.PNG, 50, _bs);
        //intent.putExtra("img", image);
        intent.putExtra("msg", noti_message);
        intent.putExtra("click_action", noti_click_action);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
                PendingIntent.FLAG_ONE_SHOT);

        Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        NotificationCompat.Builder notificationBuilder = new
                NotificationCompat.Builder(this, "Default")
                //.setLargeIcon(R.mipmap.ic_launcher)/*Notification icon image*/
                .setSmallIcon(R.mipmap.ic_launcher)
                //.setStyle(new NotificationCompat.BigPictureStyle().bigPicture(image))/*Notification with Image*/
                .setAutoCancel(true)
                .setSound(defaultSoundUri)
                .setPriority(Notification.PRIORITY_HIGH)
                .setChannelId("Default")
                .setVibrate(new long[]{1000, 1000})
                .setContentIntent(pendingIntent);

        notificationBuilder.setContentTitle(noti_title);
        notificationBuilder.setContentText(noti_message);
        notificationBuilder.setAutoCancel(true);
        NotificationManager notificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

        notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());



    } catch (Exception e) {
        Log.e(TAG, "Exception: " + e.getMessage());
    }
}

Answer 1

FCM 代表客户端应用程序自动向最终用户设备显示消息。当用户点击通知时，会创建两个条件

1. 当您的应用处于后台时发送通知。在这种情况下，通知会传送到设备的系统托盘。用户点击通知会默认打开应用启动器。

2. 具有通知和数据负载的消息，包括后台和前台。在这种情况下，通知被发送到设备的系统托盘，数据负载在启动器 Activity 的 intent 的附加部分中传送。

如果您想在应用程序处于后台时打开所需的 Activity ，并且通知仅包含通知而没有数据播放负载，那么这是不可能的。

但是，如果您想在应用程序处于后台并且通知包含数据播放负载时打开所需的 Activity ，则您可以将用户导航到所需的 Activity 。

请参阅下面的示例，了解当消息具有数据负载时打开所需的 Activity ，包括后台和前台条件。

在我的 AndroidManifest 启动器 Activity 中是 SplashActivity

<activity android:name=".activities.SplashActivity">
<intent-filter>
    <action android:name="android.intent.action.MAIN" />

    <category android:name="android.intent.category.LAUNCHER" />
</intent-filter>

您可以通过 Google FCM 测试器在 pushtry.com 上测试通知。这是通过 pushtry.com 发送时的播放数据格式

{
  "to":"your_device_token",
  "data": {
      "title": "hello",
      "message": "test message",
  },
 "priority":"high"
}

MyFirebaseMessagingService 类:

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    private static final String TAG = "FCM Service";
    private static int count = 0;

    @Override
    public void onNewToken(String s) {
        super.onNewToken(s);
        KeyManager.setSharedPreferenceString(getApplicationContext(), "fcm_token", s);
        Log.e(TAG, "onNewToken: " + s);
    }

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
//Here notification is recieved from server
        try {
            sendNotification(remoteMessage.getData().get("title"), remoteMessage.getData().get("message"));
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    private void sendNotification(String title, String messageBody) {
        Intent intent = new Intent(getApplicationContext(), SplashActivity.class);  
//you can use your launcher Activity insted of SplashActivity, But if the Activity you used here is not launcher Activty than its not work when App is in background.
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
//Add Any key-value to pass extras to intent
        intent.putExtra("pushnotification", "yes");
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);

        Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        NotificationManager mNotifyManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
//For Android Version Orio and greater than orio.
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
            int importance = NotificationManager.IMPORTANCE_LOW;
            NotificationChannel mChannel = new NotificationChannel("Sesame", "Sesame", importance);
            mChannel.setDescription(messageBody);
            mChannel.enableLights(true);
            mChannel.setLightColor(Color.RED);
            mChannel.enableVibration(true);
            mChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});

            mNotifyManager.createNotificationChannel(mChannel);
        }
//For Android Version lower than orio.
        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this, "Seasame");
        mBuilder.setContentTitle(title)
                .setContentText(messageBody)
                .setSmallIcon(R.mipmap.ic_launcher_sesame)
                .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher_sesame))
                .setAutoCancel(true)
                .setSound(defaultSoundUri)
                .setColor(Color.parseColor("#FFD600"))
                .setContentIntent(pendingIntent)
                .setChannelId("Sesame")
                .setPriority(NotificationCompat.PRIORITY_LOW);

        mNotifyManager.notify(count, mBuilder.build());
        count++;
    }

}

现在，当您在后台收到推送通知并点击通知时，通知将发送到设备的系统托盘和 Extras 传递给您的启动器 Activity。检查启动器 Activity 是否有额外内容或为空，然后将用户导航到所需的 Activity。

如果您只想向登录用户显示您的 Activity ，那么 SplashActivity 如下所示:

public class SplashActivity extends AppCompatActivity {
    @Override
    protected void attachBaseContext(Context newBase) {
        super.attachBaseContext(CalligraphyContextWrapper.wrap(newBase));
    }

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

        try {
            if (KeyManager.getSharedPreferenceBoolean(SplashActivity.this, "isLoggedIn", false)) {
                if (getIntent().hasExtra("pushnotification")) {
                    Intent intent = new Intent(this, YourDesiredActivity.class);
                    startActivity(intent);
                    finish();
                } else {
                    CheckLogin();
                }
            } else {
                Intent i = new Intent(SplashActivity.this, LoginActivity.class);
                startActivity(i);
                finish();
            }

        } catch (Exception e) {
            CheckLogin();
            e.printStackTrace();
        }
    }

    private void CheckLogin() {
        if (KeyManager.getSharedPreferenceBoolean(SplashActivity.this, "isLoggedIn", false)) {
            Intent i = new Intent(SplashActivity.this, MainActivity.class);
            startActivity(i);
        } else {
            new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {

                    Intent i = new Intent(SplashActivity.this, LoginActivity.class);
                    startActivity(i);
                    finish();
                }
            }, 2500);
        }
    }

}

SplashActivty 中用于根据条件在不同 Activity 中导航用户的逻辑。

当用户在没有点击推送通知的情况下以正常流程打开应用程序时，getIntent().hasExtra(“pushnotification”) 为空，因此命令转到 catch block 并且 CheckLogin() 方法检查是否已登录。但是用户通过点击 pushnotification 输入然后 getIntent().hasExtra(“pushnotification”) 不为空，他将转到所需的 Activity。