如何解决如何解决我的应用程序的内存消耗
我已经构建了一个电子商务android应用程序。但是我的应用程序的内存消耗很高。它在3小时内消耗500 MB。有时，它在内存不足的手机上无法正常工作。当我测试时，它的内存不足，应用程序将崩溃。我是编程的新手，我不知道编程技术。请帮我解决这个问题。这是我的代码。
public class HomeFragment extends Fragment {
private View homeFragmentVeiw;
private static ArrayList<Products> list,newLists,brandList;
private ArrayList<Category> listx;
private static ArrayList<Merchants> codeList=new ArrayList<>();
private LinearLayout store,createStore,inviteFreinds,inviteSellers,barnd_layout;
private static RecyclerView recyclerView1,catRec,new_products_rec,brandRec;
private RelativeLayout mainLayout;
private ImageSlider imageSlider;
private TextView txtCreateStore;
private TextView moreProductsTxt;
private TextView newProductstxt;
private ImageView imgCreateStore;
private ProgressBar progressBar;
private static String userName;
private static String userNickName;
private String package_name;
private static ArrayList<Merchants> totalInvitation;
private static Object invited_by;
private static String txtinvitation=null,noOfInvitation;
private linearlayoutmanager layoutManager1;
private static DatabaseReference userCodeRef,ref = FirebaseDatabase.getInstance().getReference();
//private Picasso picasso;
private List<SlideModel> slideModels;
private linearlayoutmanager layoutManager;
// private CategoryAdapter categoryAdapter;
private Intent intent;
private String subject1,subject2;
private static int check=0,checko=0;
private static Dialog dialog;
private static ArrayAdapter<String> adapter;
private static ArrayList<String> listb;
private NoConnections noConnections;
private SellerListner sellerListner;
private PagerListner pagerListner;
private CategoryListner categoryListner;
private UserListner userListner;
private ProductListner productListner;
private SaveInvitationListner saveInvitationListner;
private static Query query;
private static int checkP = 0;
private RequestManager glide;
private CardView scan;
private RequestManager glidep;
@Override
public View onCreateView(LayoutInflater inflater,ViewGroup container,final Bundle savedInstanceState) {
homeFragmentVeiw = inflater.inflate(R.layout.fragment_home,container,false);
glidep = Glide.with(this);
glide = Glide.with(getContext());
ref = FirebaseDatabase.getInstance().getReference();
codeList=new ArrayList<>();
if (getContext()!=null) {
//package name
package_name = getContext().getPackageName();
dialog = new Dialog(getContext());
scan = homeFragmentVeiw.findViewById(R.id.Scan_QR);
scan.setVisibility(View.GONE);
FirebaseDatabase.getInstance().getReference().child("Admin_QR_Trade").addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
if (dataSnapshot.exists()){
if (dataSnapshot.getValue().toString().equals("on")){
scan.setVisibility(View.VISIBLE);
}else{
scan.setVisibility(View.GONE);
}
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
scan.setonClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getContext(),QRCodeRunner.class);
startActivity(intent);
}
});
barnd_layout = homeFragmentVeiw.findViewById(R.id.brand_list);
barnd_layout.setVisibility(View.GONE);
brandRec = homeFragmentVeiw.findViewById(R.id.brand_rec);
brandRec.setLayoutManager(new linearlayoutmanager(getContext(),linearlayoutmanager.HORIZONTAL,false));
brandRec.setHasFixedSize(false);
showBrand();
store = homeFragmentVeiw.findViewById(R.id.store);
inviteSellers = homeFragmentVeiw.findViewById(R.id.user_invite_sellers);
inviteFreinds = homeFragmentVeiw.findViewById(R.id.invite_friends);
createStore = homeFragmentVeiw.findViewById(R.id.create_store);
new_products_rec = homeFragmentVeiw.findViewById(R.id.new_product_rec);
RecyclerView.LayoutManager LayoutMgr = new
StaggeredGridLayoutManager(2,StaggeredGridLayoutManager.VERTICAL);
new_products_rec.setLayoutManager(LayoutMgr);
moreProductsTxt = homeFragmentVeiw.findViewById(R.id.more_products_title);
imgCreateStore = homeFragmentVeiw.findViewById(R.id.img_create_store);
txtCreateStore = homeFragmentVeiw.findViewById(R.id.txt_create_store);
mainLayout = homeFragmentVeiw.findViewById(R.id.main_layout);
progressBar = homeFragmentVeiw.findViewById(R.id.home_fragment_progress);
recyclerView1 = homeFragmentVeiw.findViewById(R.id.product_rec);
newProductstxt = homeFragmentVeiw.findViewById(R.id._title);
RecyclerView.LayoutManager mLayoutManager = new
StaggeredGridLayoutManager(2,StaggeredGridLayoutManager.VERTICAL);
layoutManager1 = new GridLayoutManager(getContext(),2);
recyclerView1.setLayoutManager(mLayoutManager);
//
//checking the user has seller account
if (getContext()!=null) {
sellerListner = new SellerListner(txtCreateStore,getContext(),imgCreateStore,glide);
ref.child("Sellers").child(FirebaseAuth.getInstance().getCurrentUser().getUid()).addValueEventListener(sellerListner);
}
imageSlider = homeFragmentVeiw.findViewById(R.id.banners);
slideModels = new ArrayList<>();
//the view pager
pagerListner = new PagerListner(slideModels,imageSlider);
ref.child("banners").addValueEventListener(pagerListner);
//for category images
catRec = homeFragmentVeiw.findViewById(R.id.cat_rec);
catRec.setHasFixedSize(true);
layoutManager = new linearlayoutmanager(getContext());
catRec.setLayoutManager(layoutManager);
//retriving the category
categoryListner = new CategoryListner(listx,progressBar,moreProductsTxt,mainLayout,newProductstxt);
ref.child("Category").addValueEventListener(categoryListner);
store.setonClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
checkconnection();
intent = new Intent(getContext(),StoreActivity.class);
startActivity(intent);
}
});
//checking initation and showing the dialogue
userListner = new UserListner(getContext(),progressBar);
ref.child("Users").child(FirebaseAuth.getInstance().getCurrentUser().getUid()).addValueEventListener(userListner);
inviteFreinds.setonClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (ref.child("Users").child(FirebaseAuth.getInstance().getCurrentUser().getUid()) == null) {
checkconnection();
} else {
//checking the user has account or not
if (userNickName != null) {
intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
subject1 = getString(R.string.Hello_friends_my_name_is) + " " + userName + " " + getString(R.string.inviting_friends) + "\n" + getString(R.string.you_can_get_it) + "\n " + getString(R.string.write_this_code) + " " + userNickName + " " + getString(R.string.for_supporting) + "\n" + getString(R.string.thankyou) + "\n" + "https://play.google.com/store/apps/details?id=" + package_name;
intent.putExtra(Intent.EXTRA_TEXT,subject1);
startActivity(Intent.createChooser(intent,"Share via"));
} else {
Toast.makeText(getContext(),getString(R.string.creat_account),Toast.LENGTH_SHORT).show();
}
}
}
});
inviteSellers.setonClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if ( ref.child("Users").child(FirebaseAuth.getInstance().getCurrentUser().getUid()) == null) {
checkconnection();
} else {
//checking the user has account or not
if (userNickName != null) {
intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
subject2 = getString(R.string.Hello_friends_my_name_is) + " " + userName + " " + getString(R.string.inviting_users) + "\n" + getString(R.string.you_can_get_it) + "\n" + getString(R.string.thankyou) + "\n" + "https://play.google.com/store/apps/details?id=" + package_name;
intent.putExtra(Intent.EXTRA_TEXT,subject2);
startActivity(Intent.createChooser(intent,Toast.LENGTH_SHORT).show();
}
}
}
});
createStore.setonClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
checkconnection();
intent = new Intent(getContext(),SellerActivity.class);
startActivity(intent);
}
});
// //geting all product
productListner = new ProductListner(getContext(),glidep);
query = FirebaseDatabase.getInstance().getReference().child("Products").orderByChild("published_on_date");
query.addValueEventListener(productListner);
//saveing invitations to database
saveInvitationListner = new SaveInvitationListner();
ref.child("Users").addValueEventListener(saveInvitationListner);
checkconnection();
if (ActivityCompat.checkSelfPermission(getContext(),Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
} else {
ActivityCompat.requestPermissions(getActivity(),new String[]{Manifest.permission.ACCESS_FINE_LOCATION},20);
}
}
return homeFragmentVeiw;
}
private void showBrand() {
FirebaseDatabase.getInstance().getReference().child("Brand").addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
if (dataSnapshot.exists()){
brandList = new ArrayList<>();
for (DataSnapshot ds : dataSnapshot.getChildren()){
if (ds.child("availability").getValue().equals("enabled")){
brandList.add(ds.getValue(Products.class));
barnd_layout.setVisibility(View.VISIBLE);
}
}
BrandAdapter brandAdapter = new BrandAdapter(brandList,getContext());
brandRec.setAdapter(brandAdapter);
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
public void checkconnection() {
noConnections = new NoConnections(getContext());
noConnections.checkconnection();
}
@Override
public void onDestroyView() {
super.onDestroyView();
check = 0;checko = 0;
sellerListner=null;
pagerListner=null;
categoryListner=null;
userListner=null;
productListner=null;
saveInvitationListner=null;
glide=null;
dialog = null;
glidep = null;
}
}
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