Nasdomlan Urban3p's questions

大家好，我正在通知，在课堂上NotificationUtils我收到这样的错误。

Builder (Context) in Builder cannot be applied to (Context, java.lang.String)

错误线

final NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mContext, CHANNEL_ID);

通道 - private static final String CHANNEL_ID = "myChannel";

它是什么，我该如何修复它？在另一个项目中，它工作正常。如果您删除CHANNEL_ID，通知会到达，但活动不会打开，通知文本应写入其中。

进口

  import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.media.Ringtone;
import android.media.RingtoneManager;
import android.net.Uri;
import android.support.v4.app.NotificationCompat;
import android.text.Html;

import com.whrsmxmx.vk_api_test.MapsActivity;
import com.whrsmxmx.vk_api_test.PushTest;
import com.whrsmxmx.vk_api_test.R;
import com.whrsmxmx.vk_api_test.vo.NotificationVO;

import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;

构建.gradle

implementation 'com.android.support:appcompat-v7:23.0.0'
    implementation 'com.google.android.gms:play-services-maps:9.4.0'
    implementation 'com.google.android.gms:play-services:9.4.0'
    implementation 'com.android.support:multidex:1.0.0'
    testImplementation 'junit:junit:4.12'
    implementation 'com.google.firebase:firebase-core:9.4.0'
    implementation 'com.getbase:floatingactionbutton:1.10.1'
    implementation 'com.google.firebase:firebase-database:9.4.0'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    compile 'com.android.support.constraint:constraint-layout:1.0.0-beta4'
    compile 'com.vk:androidsdk:1.6.5'
    compile 'com.squareup.picasso:picasso:2.5.2'
    testCompile 'junit:junit:4.12'
    implementation 'com.crashlytics.sdk.android:crashlytics:2.9.9'
    //Новый хлам от уведомлений и т.д
    implementation 'com.loopj.android:android-async-http:1.4.9'
    implementation 'com.squareup.retrofit2:retrofit:2.2.0'
    implementation 'com.squareup.retrofit2:converter-gson:2.2.0'
    implementation 'com.squareup.okhttp3:logging-interceptor:3.6.0'
    implementation 'com.google.code.gson:gson:2.8.1'
    implementation 'com.google.firebase:firebase-messaging:9.4.0'
    implementation 'com.squareup.picasso:picasso:2.71828'

大家好，请告诉我，我在 FireBase 中存储带有坐标的标记，我如何计算从我的位置到这个标记的距离？而且我还对如何制作一个设置屏幕感兴趣，您可以在其中输入以 KM 为单位的距离，以便它仅在设置的半径内显示标记？我不明白。

以上是数据库的样子。

请告诉我如何在没有 的情况下在 InfoWindow 中显示文本final String，否则所有标记都将带有一个文本。我需要在 InfoWindow 中推断出大约 3-4 条不同的行。下面是截图中的一段代码。

public void onChildAdded(DataSnapshot dataSnapshot, String prevChildKey) {
            if(dataSnapshot.child("latitude").getValue() != null &&
                    dataSnapshot.child("longitude").getValue() != null) {
                double latt = dataSnapshot.child("latitude").getValue(Double.class);
                double longg = dataSnapshot.child("longitude").getValue(Double.class);
                LatLng newLocation = new LatLng(latt, longg);
                String sname = (String) dataSnapshot.child("sname").getValue();
                String text = (String) dataSnapshot.child("text").getValue();
                String Number = (String) dataSnapshot.child("number").getValue();
                String image = dataSnapshot.child("image").getValue(String.class);
                if (image.equals("akym")) {
                    mMap.addMarker(new MarkerOptions()
                            .position(newLocation)
                            .title(sname)
                            .snippet("Номер:"+Number+"\n"+"Описание:"+text)
                            .icon(BitmapDescriptorFactory.fromResource(R.mipmap.akym))
                    );
                    mMap.setInfoWindowAdapter(new GoogleMap.InfoWindowAdapter() {
                        @Override
                        public View getInfoWindow(Marker arg0) {
                            return null;
                        }
                        @Override
                        public View getInfoContents(Marker marker) {
                            View myContentView = getLayoutInflater().inflate(
                                    R.layout.custommarker, null);
                            TextView tvTitle = ((TextView) myContentView
                                    .findViewById(R.id.title));
                            tvTitle.setText(Number);
                            TextView tvSnippet = ((TextView) myContentView
                                    .findViewById(R.id.snippet));
                            tvSnippet.setText(marker.getSnippet());
                            return myContentView;
                        }
                    });

PS我知道代码很糟糕，但我正在学习）

将数据从手机传递到 PHP

   $title = $_POST['title'];
$message = $_POST['message'];
$token = $_POST['token'];
  // ---- уведомление для трея ---- //
$payload = '{
  "to" : '$token',
  "notification" : {
    "title" : '$title',
    "body" : '$message',
    "sound": "notify"
  }
}';

给出错误信息

PHP 解析错误：语法错误，意外的 '$token' (T_VARIABLE)

从手机本身我这样传输

class SendPostReqAsyncTask extends AsyncTask<String, Void, String> {
    @Override
    protected String doInBackground(String... params) {


        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();

        nameValuePairs.add(new BasicNameValuePair("token", token));
        nameValuePairs.add(new BasicNameValuePair("title", title));
        nameValuePairs.add(new BasicNameValuePair("message", message_ban));

        try {
            HttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost(ServerURL);
            httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            HttpResponse httpResponse = httpClient.execute(httpPost);
            HttpEntity httpEntity = httpResponse.getEntity();

        } catch (ClientProtocolException e) {

        } catch (IOException e) {

        }
        return "Data Inserted Successfully";
    }

    @Override
    protected void onPostExecute(String result) {

        super.onPostExecute(result);

        Toast.makeText(ActivityAdmin.this, "Data Submit Successfully", Toast.LENGTH_LONG).show();

    }
}

SendPostReqAsyncTask sendPostReqAsyncTask = new SendPostReqAsyncTask();

sendPostReqAsyncTask.execute(token, title, message_ban);

我该如何解决这个问题或至少检查它是否有效？

大家好，问题是，在本课中，我通过一个主题将通知与图像联系起来。如何让应用在点击通知的时候打开一个带有通知的文字和图片的activity，我以前在网上看到过这样的课，但是现在不知为什么找不到了。

请告诉我，有这样一个带有 FireBase 标记的地图代码，我怎样才能更新它们，而无需每秒重新加载页面？

<script>
    var config;
    function initialize() {
      var infowindow = new google.maps.InfoWindow();
      var map = new google.maps.Map(
        document.getElementById("map_canvas"), {
          center: new google.maps.LatLng(59.91378, 30.35894),
          zoom: 13,
          mapTypeId: google.maps.MapTypeId.ROADMAP
        });
      // Initialize Firebase
      var config = {
        apiKey: "Ключ",
        authDomain: "Домен",
        databaseURL: "База",
        projectId: "ИД",
        storageBucket: "Ведро",
        messagingSenderId: "ИД"
      };
      firebase.initializeApp(config);
      //Create a node at firebase location to add locations as child keys
      var locationsRef = firebase.database().ref("users");
      var bounds = new google.maps.LatLngBounds();
      locationsRef.on('child_added', function(snapshot) {
        var data = snapshot.val();
        console.log(data);
        var marker = new google.maps.Marker({
          position: {
            lat: data.latitude,
            lng: data.longitude
          },
          map: map
        });
        bounds.extend(marker.getPosition());
        marker.addListener('click', (function(data) {
          return function(e) {
            infowindow.setContent(data.name);
            infowindow.open(map, this);
          }
        }(data)));
        map.fitBounds(bounds);
      });
    }
    </script>
    <style>
    html,
    body,
    #map_canvas {
      height: 100%;
      width: 100%;
      margin: 0px;
      padding: 0px
    }
    </style>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
        <script async defer
            src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDBVFHz4EuuN1tiAtuTwTRAvI40998Pb2A&libraries=visualization&callback=initialize">
        </script>
    <script src="https://www.gstatic.com/firebasejs/4.12.1/firebase.js"></script>
    <script src="https://cdn.firebase.com/libs/geofire/4.1.2/geofire.min.js"></script>
    <div id="map_canvas"></div>

请告诉我在这里要更改什么，以便将地图放置在应 Json 的要求拍摄的标记上？

String lat = jsonObj.getString("lat");
        String lng = jsonObj.getString("lng");
        final String markerPath = jsonObj.getString("path");
        gmap = ((NiceSupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map)).getMap();
        gmap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
        CameraUpdate center = CameraUpdateFactory.newLatLng(new LatLng(
                Double.parseDouble(lat), Double.parseDouble(lng)));
        CameraUpdate zoom = CameraUpdateFactory.zoomTo(15);
        gmap.moveCamera(center);
        gmap.animateCamera(zoom);
        final MarkerOptions markerOpt = new MarkerOptions()
                .position(new LatLng(Double.parseDouble(lat), Double
                        .parseDouble(lng)));
        if (markerPath == null || markerPath.equalsIgnoreCase("")
                || markerPath == "null" || markerPath == "") {
            markerOpt.icon(BitmapDescriptorFactory
                    .fromResource(R.drawable.ic_pin));
            gpin = gmap.addMarker(markerOpt);
        } else {
            Ion.with(MyDetailActivity.this)
                    .load(getResources().getString(R.string.domain_url)
                            + markerPath).asBitmap()
                    .setCallback(new FutureCallback<Bitmap>() {

                        @Override
                        public void onCompleted(Exception arg0, Bitmap bmp) {
                            // TODO Auto-generated method stub
                            markerOpt.icon(BitmapDescriptorFactory
                                    .fromBitmap(bmp));
                            gpin = gmap.addMarker(markerOpt);
                        }

                    });

有了它，它将地图的中心定位在距目标约 300-400 公里的位置……标记的位置无关紧要。

我以身作则

挂在“waiting for information about the product ...” 日志是这样的

Тестовый    Запрос  app_id=6012329&item=item_100coin&lang=ru_RU&notification_type=get_item_test&order_id=1318284&receiver_id=272826680&user_id=272826680

这是答案

Тестовый    Ответ

他做错了什么？

你好。我在页面上有 3 个字段textarea。我怎样才能让点击按钮时，它们的值覆盖不同txt文件中的内容。
那些。例如，值是从字段groupsto groups.txt、 from phototophoto.txt等输入的。

提前致谢。