Gridlayoutmanager - Как автозагодью автоматической подгонки? ⇐ Android

[Anonymous]

У меня есть Recyclerview с GridlayoutManager, который отображает представления карт. Я хочу, чтобы карты перестраивали в соответствии с размером экрана (приложение Google Play делает такую ​​вещь со своими картами приложений). Вот пример:

< /p>

< /p>

Вот как мое приложение смотрит на данный момент: < /p>



< /p>

, как вы можете видеть, что карты просто растягиваются и не соответствуют пустому пространству, которое сделано из изменения ориентации. Итак, как я могу это сделать?using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Json;
using System.Threading;
using System.Threading.Tasks;
using Android.Media;
using Android.App;
using Android.Support.V4.App;
using Android.Support.V4.Content.Res;
using Android.Support.V4.Widget;
using Android.Support.V7.Widget;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Util;
using Android.Views;
using Android.Widget;
using Android.Net;
using Android.Views.Animations;
using Android.Graphics;
using Android.Graphics.Drawables;
using Newtonsoft.Json;
using *******.Adapters;
using *******.Models;

namespace *******.Fragments {
public class Dashboard : GridLayoutBase {
private ISharedPreferences pref;
private SessionManager session;
private string cookie;
private DeviceModel deviceModel;
private RecyclerView recyclerView;
private RecyclerView.Adapter adapter;
// private RecyclerView.LayoutManager layoutManager;
private GridLayoutManager gridLayoutManager;
private List itemData;
private Bitmap lastPhotoBitmap;
private Drawable lastPhotoDrawable;
private static Activity activity;
private ProgressDialog progressDialog;
private TextView noData;
private const string URL_DASHBOARD = "http://192.168.1.101/appapi/getdashboard";
private const string URL_DATA = "http://192.168.1.101/appapi/getdata";

public override void OnCreate(Bundle bundle) {
base.OnCreate(bundle);

activity = Activity;
session = new SessionManager();
pref = activity.GetSharedPreferences("UserSession", FileCreationMode.Private);
cookie = pref.GetString("PHPSESSID", string.Empty);
}

public async override void OnStart() {
base.OnStart();

progressDialog = ProgressDialog.Show(activity, String.Empty, GetString(Resource.String.loading_text));
progressDialog.Window.ClearFlags(WindowManagerFlags.DimBehind);

await GetDevicesInfo();

if (deviceModel.Error == "true" && deviceModel.ErrorType == "noSensors") {
recyclerView.Visibility = ViewStates.Gone;
noData.Visibility = ViewStates.Visible;

progressDialog.Hide();

return;
} else {
recyclerView.Visibility = ViewStates.Visible;
noData.Visibility = ViewStates.Gone;

await PopulateSensorStates();
}

// DisplayLastPhoto();

adapter = new ViewAdapter(itemData);

new System.Threading.Thread(new System.Threading.ThreadStart(() => {
activity.RunOnUiThread(() => {
recyclerView.SetAdapter(adapter);
});
})).Start();

progressDialog.Hide();
}

public async Task GetDevicesInfo() {
var jsonFetcher = new JsonFetcher();
JsonValue jsonDashboard = await jsonFetcher.FetchDataWithCookieAsync(URL_DASHBOARD, cookie);
deviceModel = new DeviceModel();
deviceModel = JsonConvert.DeserializeObject(jsonDashboard);
}

// Shows sensor states
public async Task PopulateSensorStates() {
itemData = new List();
string lastValue = String.Empty;

foreach (var sensor in this.deviceModel.Sensors) {
var sensorImage = ResourcesCompat.GetDrawable(Resources, Resource.Drawable.smoke_red, null);

switch (sensor.Type) {
case "2":
var jsonFetcher = new JsonFetcher();
JsonValue jsonData = await jsonFetcher.FetchSensorDataAsync(URL_DATA, sensor.Id, "DESC", "1", cookie);
var deviceModel = new DeviceModel();
deviceModel = JsonConvert.DeserializeObject(jsonData);
lastValue = deviceModel.SensorData.Last().Value;
break;
case "4":
await RenderLastCameraPhoto();
sensorImage = new BitmapDrawable(Resources, lastPhotoBitmap);
break;
}

itemData.Add(new ItemData() {
id = sensor.Id,
value = lastValue,
type = sensor.Type,
image = sensorImage,
title = sensor.Name.First().ToString().ToUpper() + sensor.Name.Substring(1).ToLower(),
});
}
}

// Shows the last camera photo
public async Task RenderLastCameraPhoto() {
if (deviceModel.Error == "true" && deviceModel.ErrorType == "noPhoto") {
//TODO: Show a "No photo" picture
} else {
string url = deviceModel.LastPhotoLink;
lastPhotoBitmap = await new ImageDownloader().GetImageBitmapFromUrlAsync(url, activity, 300, 300);
}
}

public async void UpdateData(bool isSwipeRefresh) {
await GetDevicesInfo();

if (deviceModel.Error == "true" && deviceModel.ErrorType == "noSensors") {
recyclerView.Visibility = ViewStates.Gone;
noData.Visibility = ViewStates.Visible;

return;
} else {
recyclerView.Visibility = ViewStates.Visible;
noData.Visibility = ViewStates.Gone;

await PopulateSensorStates();
}

adapter = new ViewAdapter(itemData);

new System.Threading.Thread(new System.Threading.ThreadStart(() => {
activity.RunOnUiThread(() => {
recyclerView.SetAdapter(adapter);
});
})).Start();

adapter.NotifyDataSetChanged();
}

public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.Inflate(Resource.Layout.Dashboard, container, false);
noData = view.FindViewById(Resource.Id.no_data_title);

SwipeRefreshLayout swipeRefreshLayout = view.FindViewById(Resource.Id.swipe_container);
// swipeRefreshLayout.SetColorSchemeResources(Color.LightBlue, Color.LightGreen, Color.Orange, Color.Red);

// On refresh button press/swipe, updates the recycler view with new data
swipeRefreshLayout.Refresh += (sender, e) => {
UpdateData(true);

swipeRefreshLayout.Refreshing = false;
};

var gridLayoutManager = new GridLayoutManager(activity, 2);

recyclerView = view.FindViewById(Resource.Id.dashboard_recycler_view);
recyclerView.HasFixedSize = true;
recyclerView.SetLayoutManager(gridLayoutManager);
recyclerView.SetItemAnimator(new DefaultItemAnimator());
recyclerView.AddItemDecoration(new SpaceItemDecoration(15));

return view;
}

public class ViewAdapter : RecyclerView.Adapter {
private List itemData;
public string sensorId;
public string sensorType;
private ImageView imageId;
private TextView sensorValue;
private TextView sensorTitle;

public ViewAdapter(List itemData) {
this.itemData = itemData;
}

public class ItemView : RecyclerView.ViewHolder {
public View mainView { get; set; }

public string id { get; set; }

public string type { get; set; }

public ImageView image { get; set; }

// public TextView value { get; set; }

public TextView title { get; set; }

public ItemView(View view) : base(view) {
mainView = view;
}
}

public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup parent, int viewType) {
View itemLayoutView = LayoutInflater.From(parent.Context).Inflate(Resource.Layout.DashboardItems, null);
CardView cardView = itemLayoutView.FindViewById(Resource.Id.dashboard_card_view);
imageId = itemLayoutView.FindViewById(Resource.Id.sensor_image);
// sensorValue = itemLayoutView.FindViewById(Resource.Id.sensor_value);
sensorTitle = itemLayoutView.FindViewById(Resource.Id.sensor_title);

var viewHolder = new ItemView(itemLayoutView) {
id = sensorId,
type = sensorType,
image = imageId,
// value = sensorValue,
title = sensorTitle
};

return viewHolder;
}

public override void OnBindViewHolder(RecyclerView.ViewHolder viewHolder, int position) {
ItemView itemHolder = viewHolder as ItemView;

itemHolder.image.SetImageDrawable(itemData[position].image);

if (itemData[position].type == "2") { // Temperature
itemHolder.title.Text = itemData[position].title + ": " + itemData[position].value;
} else {
itemHolder.title.Text = itemData[position].title;
}

var bundle = new Bundle();
var dualColumnList = new DualColumnList();
var gallery = new Gallery();

EventHandler clickUpdateViewEvent = ((sender, e) => {
bundle.PutString("id", itemData[position].id);
gallery.Arguments = bundle;
dualColumnList.Arguments = bundle;

if (itemData[position].type == "4") { // Camera
((FragmentActivity)activity).ShowFragment(gallery, itemData[position].title, itemData[position].type, true);
} else {
((FragmentActivity)activity).ShowFragment(dualColumnList, itemData[position].title, itemData[position].type, true);
}
});

itemHolder.image.Click += clickUpdateViewEvent;
// itemHolder.value.Click += clickUpdateViewEvent;
itemHolder.title.Click += clickUpdateViewEvent;
}

public override int ItemCount {
get { return itemData.Count; }
}
}

public class ItemData {
public string id { get; set; }

public string type { get; set; }

public Drawable image { get; set; }

public string value { get; set; }

public string title { get; set; }
}
}
}
< /code>

Фрагмент макет: < /p>










< /code>

Mayout элементов фрагмента: < /p>











Подробнее здесь: https://stackoverflow.com/questions/335 ... it-columns