Android Studio Flutter Entegrasyonu Hk.

Merhaba değerli forum sakinleri, Android Studio üzerine Flutter'i entegre etmek istiyorum fakat yapamadım nasıl yapabilirim. Yardımcı olabiliceklere AnyDesk ID atabilirim :)

Android Studio açtığında solda plugin var ordan ekle

.....

Build ederken hata veriyor hocam sdk indirdim yükledim pluginleride yükledim ama

Hata veriyor diye sorun anlatılmaz hocam, elimizde neler var onları da yazmanız gerekiyor

.....

Hocam şimdi uygulamada son silinen içerikler diye bir yer var oradaki bir gönderiye tıklayınca silmek veya geri yüklemek için uygulamadan atıyor. Debug modda çalıştırdığımda ise şu hata çıkıyor:

--------- beginning of crash
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.rantrum.katana, PID: 17270
java.lang.NullPointerException: Attempt to invoke virtual method 'void com.balysv.materialripple.MaterialRippleLayout.setVisibility(int)' on a null object reference
at com.rantrum.katana.RecentlyDeletedFragment.showItemActionDialog(RecentlyDeletedFragment.java:381)
at com.rantrum.katana.RecentlyDeletedFragment.access$000(RecentlyDeletedFragment.java:52)
at com.rantrum.katana.RecentlyDeletedFragment$1.onItemClick(RecentlyDeletedFragment.java:142)
at com.rantrum.katana.adapter.AdvancedItemListAdapter.onItemMenuButtonClick(AdvancedItemListAdapter.java:1520)
at com.rantrum.katana.adapter.AdvancedItemListAdapter.access$100(AdvancedItemListAdapter.java:106)
at com.rantrum.katana.adapter.AdvancedItemListAdapter$12.onClick(AdvancedItemListAdapter.java:921)
at android.view.View.performClick(View.java:7448)
at android.view.View.performClickInternal(View.java:7425)
at android.view.View.access$3600(View.java:810)
at android.view.View$PerformClick.run(View.java:28305)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
I/Process: Sending signal. PID: 17270 SIG: 9
Disconnected from the target VM, address: 'localhost:51273', transport: 'socket'

Kod içeriğim şu şekilde:

package com.rantrum.katana;

import android.app.Activity;
import android.app.Dialog;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import androidx.appcompat.app.AlertDialog;
import androidx.core.widget.NestedScrollView;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.GridLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;

import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.balysv.materialripple.MaterialRippleLayout;
import com.google.android.material.bottomsheet.BottomSheetBehavior;
import com.google.android.material.bottomsheet.BottomSheetDialog;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

import com.rantrum.katana.adapter.AdvancedItemListAdapter;
import com.rantrum.katana.app.App;
import com.rantrum.katana.constants.Constants;
import com.rantrum.katana.model.Item;
import com.rantrum.katana.util.Api;
import com.rantrum.katana.util.CustomRequest;

public class RecentlyDeletedFragment extends Fragment implements Constants, SwipeRefreshLayout.OnRefreshListener {

private static final String STATE_LIST = "State Adapter Data";

private RecyclerView mRecyclerView;
private NestedScrollView mNestedView;

private SwipeRefreshLayout mItemsContainer;

private BottomSheetBehavior mBehavior;
private BottomSheetDialog mBottomSheetDialog;
private View mBottomSheet;

private TextView mMessage;
private ImageView mSplash;

private ArrayList itemsList;
private AdvancedItemListAdapter itemsAdapter;

private int itemId = 0;
private int arrayLength = 0;
private Boolean loadingMore = false;
private Boolean viewMore = false;
private Boolean restore = false;

public RecentlyDeletedFragment() {
// Required empty public constructor
}

@Override
public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

if (savedInstanceState != null) {

itemsList = savedInstanceState.getParcelableArrayList(STATE_LIST);
itemsAdapter = new AdvancedItemListAdapter(getActivity(), itemsList);

restore = savedInstanceState.getBoolean("restore");
itemId = savedInstanceState.getInt("itemId");

} else {

itemsList = new ArrayList();
itemsAdapter = new AdvancedItemListAdapter(getActivity(), itemsList);

restore = false;
itemId = 0;
}
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

View rootView = inflater.inflate(R.layout.fragment_recently_deleted, container, false);

mItemsContainer = (SwipeRefreshLayout) rootView.findViewById(R.id.container_items);
mItemsContainer.setOnRefreshListener(this);

//

mMessage = (TextView) rootView.findViewById(R.id.message);
mSplash = (ImageView) rootView.findViewById(R.id.splash);

// Prepare bottom sheet

mBottomSheet = rootView.findViewById(R.id.bottom_sheet);
mBehavior = BottomSheetBehavior.from(mBottomSheet);

//

mNestedView = (NestedScrollView) rootView.findViewById(R.id.nested_view);

mRecyclerView = (RecyclerView) rootView.findViewById(R.id.recycler_view);

itemsAdapter.setOnMoreButtonClickListener(new AdvancedItemListAdapter.OnItemMenuButtonClickListener() {

@Override
public void onItemClick(View v, Item obj, int actionId, int position) {

switch (actionId){

case ITEM_ACTION_REPOST: {

break;
}

case ITEM_ACTIONS_MENU: {

showItemActionDialog(position);

break;
}
}
}
});

final GridLayoutManager mLayoutManager = new GridLayoutManager(getActivity(), 1);

mRecyclerView.setLayoutManager(mLayoutManager);

mRecyclerView.setAdapter(itemsAdapter);

mRecyclerView.setNestedScrollingEnabled(false);

mNestedView.setOnScrollChangeListener(new NestedScrollView.OnScrollChangeListener() {

@Override
public void onScrollChange(NestedScrollView v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {

if (scrollY < oldScrollY) { // up


}

if (scrollY > oldScrollY) { // down


}

if (scrollY == (v.getChildAt(0).getMeasuredHeight() - v.getMeasuredHeight())) {

if (!loadingMore && (viewMore) && !(mItemsContainer.isRefreshing())) {

mItemsContainer.setRefreshing(true);

loadingMore = true;

getItems();
}
}
}
});


if (itemsAdapter.getItemCount() == 0) {

showMessage(getText(R.string.label_empty_list).toString());

} else {

hideMessage();
}

if (!restore) {

showMessage(getText(R.string.msg_loading_2).toString());

getItems();
}

return rootView;
}

@Override
public void onSaveInstanceState(Bundle outState) {

super.onSaveInstanceState(outState);

outState.putBoolean("restore", true);
outState.putInt("itemId", itemId);
outState.putParcelableArrayList(STATE_LIST, itemsList);
}

@Override
public void onRefresh() {

if (App.getInstance().isConnected()) {

itemId = 0;
getItems();

} else {

mItemsContainer.setRefreshing(false);
}
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {

super.onActivityResult(requestCode, resultCode, data);
}

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {

super.onCreateOptionsMenu(menu, inflater);
}

public void getItems() {

mItemsContainer.setRefreshing(true);

CustomRequest jsonReq = new CustomRequest(Request.Method.POST, METHOD_ITEMS_GET_RECENTLY_DELETED, null,
new Response.Listener() {
@Override
public void onResponse(JSONObject response) {

if (!isAdded() || getActivity() == null) {

Log.e("ERROR", "RecentlyDeletedFragment Not Added to Activity");

return;
}

if (!loadingMore) {

itemsList.clear();
}

try {

arrayLength = 0;

if (!response.getBoolean("error")) {

itemId = response.getInt("itemId");

if (response.has("items")) {

JSONArray itemsArray = response.getJSONArray("items");

arrayLength = itemsArray.length();

if (arrayLength > 0) {

for (int i = 0; i < itemsArray.length(); i++) {

JSONObject itemObj = (JSONObject) itemsArray.get(i);

Item item = new Item(itemObj);

item.setAd(0);

itemsList.add(item);
}
}
}
}

} catch (JSONException e) {

e.printStackTrace();

} finally {

loadingComplete();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {

if (!isAdded() || getActivity() == null) {

Log.e("ERROR", "RecentlyDeletedFragment Not Added to Activity");

return;
}

loadingComplete();
}
}) {

@Override
protected Map getParams() {
Map params = new HashMap();
params.put("accountId", Long.toString(App.getInstance().getId()));
params.put("accessToken", App.getInstance().getAccessToken());
params.put("itemId", Integer.toString(itemId));
params.put("language", "en");

return params;
}
};

App.getInstance().addToRequestQueue(jsonReq);
}

public void loadingComplete() {

if (arrayLength == LIST_ITEMS) {

viewMore = true;

} else {

viewMore = false;
}

itemsAdapter.notifyDataSetChanged();

if (itemsAdapter.getItemCount() == 0) {

if (RecentlyDeletedFragment.this.isVisible()) {

showMessage(getText(R.string.label_empty_list).toString());
}

} else {

hideMessage();
}

loadingMore = false;
mItemsContainer.setRefreshing(false);
}


// Item action


private void showItemActionDialog(final int position) {

if (mBehavior.getState() == BottomSheetBehavior.STATE_EXPANDED) {

mBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
}

final View view = getLayoutInflater().inflate(R.layout.item_restore_actions_sheet_list, null);

MaterialRippleLayout mRestoreButton = (MaterialRippleLayout) view.findViewById(R.id.restore_button);
MaterialRippleLayout mDeleteButton = (MaterialRippleLayout) view.findViewById(R.id.delete_button);
MaterialRippleLayout mPinButton = (MaterialRippleLayout) view.findViewById(R.id.pin_button);

final Item item = itemsList.get(position);

mPinButton.setVisibility(View.GONE);

mRestoreButton.setVisibility(View.VISIBLE);
mDeleteButton.setVisibility(View.VISIBLE);

mRestoreButton.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View view) {

mBottomSheetDialog.dismiss();

restore(position);
}
});

mDeleteButton.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View view) {

mBottomSheetDialog.dismiss();

delete(position);
}
});

mBottomSheetDialog = new BottomSheetDialog(getActivity());

mBottomSheetDialog.setContentView(view);

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {

mBottomSheetDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
}

mBottomSheetDialog.show();

doKeepDialog(mBottomSheetDialog);

mBottomSheetDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {

@Override
public void onDismiss(DialogInterface dialog) {

mBottomSheetDialog = null;
}
});
}

// Prevent dialog dismiss when orientation changes
private static void doKeepDialog(Dialog dialog){

WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
lp.copyFrom(dialog.getWindow().getAttributes());
lp.width = WindowManager.LayoutParams.MATCH_PARENT;
lp.height = WindowManager.LayoutParams.MATCH_PARENT;
dialog.getWindow().setAttributes(lp);
}

public void delete(final int position) {

AlertDialog.Builder alertDialog = new AlertDialog.Builder(getActivity());
alertDialog.setTitle(getText(R.string.label_delete_permanently_post));

alertDialog.setMessage(getText(R.string.label_delete_permanently_post_desc));
alertDialog.setCancelable(true);

alertDialog.setNegativeButton(getText(R.string.action_no), new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {

dialog.cancel();
}
});

alertDialog.setPositiveButton(getText(R.string.action_yes), new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int which) {

final Item item = itemsList.get(position);

itemsList.remove(position);
itemsAdapter.notifyDataSetChanged();

if (itemsAdapter.getItemCount() == 0) {

showMessage(getText(R.string.label_empty_list).toString());
}

if (App.getInstance().isConnected()) {

Api api = new Api(getActivity());

api.postDelete(item.getId(), 0);

} else {

Toast.makeText(getActivity(), getText(R.string.msg_network_error), Toast.LENGTH_SHORT).show();
}
}
});

alertDialog.show();
}

public void restore(final int position) {

AlertDialog.Builder alertDialog = new AlertDialog.Builder(getActivity());
alertDialog.setTitle(getText(R.string.label_restore_post));

alertDialog.setMessage(getText(R.string.label_restore_post_desc));
alertDialog.setCancelable(true);

alertDialog.setNegativeButton(getText(R.string.action_no), new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {

dialog.cancel();
}
});

alertDialog.setPositiveButton(getText(R.string.action_yes), new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int which) {

final Item item = itemsList.get(position);

itemsList.remove(position);
itemsAdapter.notifyDataSetChanged();

if (itemsAdapter.getItemCount() == 0) {

showMessage(getText(R.string.label_empty_list).toString());
}

if (App.getInstance().isConnected()) {

Api api = new Api(getActivity());

api.itemRestore(item.getId());

} else {

Toast.makeText(getActivity(), getText(R.string.msg_network_error), Toast.LENGTH_SHORT).show();
}
}
});

alertDialog.show();
}


//

public void showMessage(String message) {

mMessage.setText(message);
mMessage.setVisibility(View.VISIBLE);

mSplash.setVisibility(View.VISIBLE);
}

public void hideMessage() {

mMessage.setVisibility(View.GONE);

mSplash.setVisibility(View.GONE);
}

@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
}

@Override
public void onDetach() {
super.onDetach();
}
}