从Firebase通知意图中获取额外的MainActivity

Question

我已经尝试了这3天的android通知工作,用户点击通知然后活动打开.但每次我举杯,它都说是空的.尝试使用SOF的一些解决方案,但不起作用.你能看看代码有什么问题吗？提前致谢.

通知代码是

private void sendPushNotification(JSONObject json) {
    //optionally we can display the json into log
    int notificationId = new Random().nextInt();

    Log.e(TAG, "Notification JSON " + json.toString());
    try {
        //getting the json data
        JSONObject data = json.getJSONObject("data");

        //parsing json data
        String title = data.getString("title");
        String message = data.getString("message");
        String imageUrl = data.getString("image");

        // Instantiate a Builder object.
        NotificationCompat.Builder builder = new NotificationCompat.Builder(this.getApplicationContext(),"Default");

        Intent notifyIntent = new Intent(this, MainActivity.class);
        notifyIntent.putExtra("fromNotification", true);
        // Sets the Activity to start in a new, empty task
        notifyIntent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
        // Creates the PendingIntent
        PendingIntent pendingIntent =
                PendingIntent.getActivity(
                        this.getApplicationContext(), notificationId,
                        notifyIntent,
                        PendingIntent.FLAG_ONE_SHOT
                );

        //int id = 1;
        // Puts the PendingIntent into the notification builder
        builder.setContentIntent(pendingIntent);
        // Notifications are issued by sending them to the
        // NotificationManager system service.
        NotificationManager mNotificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        // Builds an anonymous Notification object from the builder, and
        // passes it to the NotificationManager
        if (mNotificationManager != null) {
            mNotificationManager.notify(notificationId, builder.build());
        }


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

而mainActivity.class是

public class MainActivity extends AppCompatActivity {



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

    ActionBar actionBar = getSupportActionBar();
    if (actionBar != null) {
        actionBar.setElevation(0);
    }

    // Open Tab
    if(getIntent().getExtras() != null){

        Bundle b = getIntent().getExtras();
        boolean cameFromNotification = b.getBoolean("fromNotification");

        Toast.makeText(this.getApplicationContext(),
                "Error: " + getIntent().getExtras(),
                Toast.LENGTH_LONG).show();

        viewPager = findViewById(R.id.viewpager);
        setupViewPager(viewPager);

        tabLayout = findViewById(R.id.tabs);
        viewPager.setCurrentItem(1);
        tabLayout.setupWithViewPager(viewPager);
        setupTabIcons();

    }
    else {
        viewPager = findViewById(R.id.viewpager);
        setupViewPager(viewPager);

        tabLayout = findViewById(R.id.tabs);
        viewPager.setCurrentItem(0);
        tabLayout.setupWithViewPager(viewPager);
        setupTabIcons();

    }



}



@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    setIntent(intent);
} }

Answer 1

如果您已将额外内容添加到意图中并且在接收活动中未收到，则可能有 2 个原因。

1. 该活动已经存在于 android backstack 中，并且额外的内容没有在 onCreate() 中捕获，但可以在 onNewIntent()

2. 如果附加项通过 PendingIntent 的活动传递，则按照官方文档。http://developer.android.com/reference/android/app/PendingIntent.html。因此，要正确传递附加内容，您需要确保每个意图在action、data、type、class和Categories方面都有差异。或者使用FLAG_CANCEL_CURRENT或FLAG_UPDATE_CURRENT取消系统中存在的当前 PendingIntent 。

Answer 2

谢谢大家，我终于能够按照这篇文章让它工作了

我只使用通知，禁用从我的 php 服务器发送的通知并仅使用数据就可以了，我可以发送通知，并且 mainActivity 确实从意图中捕获 Putextra。