Уроки по Android Studio

MenuFragmentList.java import android.graphics.Typeface; import android.os.Bundle; import android.text.Spannable; import android.text.SpannableString; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.SubMenu; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.Toast; import androidx.annotation.NonNull; import androidx.annotation.Nullable; import androidx.fragment.app.Fragment; import com.google.android.material.navigation.NavigationView; /** * Created by mxn on 2016/12/13. * MenuListFragment */ public class MenuFragmentList extends Fragment { @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view… Read More »Энциклопедия “Do You Know?” Урок 3

MainActivity.kt import android.content.res.TypedArray import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.view.MenuItem import android.widget.Toast import androidx.recyclerview.widget.LinearLayoutManager import com.google.android.material.navigation.NavigationView import kotlinx.android.synthetic.main.activity_main.* import kotlinx.android.synthetic.main.main_content.* class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelectedListener{ var adapter: MyAdapter? = null override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) nav_view.setNavigationItemSelectedListener (this) var list = ArrayList<ListItem>() list.addAll(fillArras(resources.getStringArray(R.array.fish), resources.getStringArray(R.array.fish_content),getImageId(R.array.fish_image_array))) rcView.hasFixedSize() rcView.layoutManager = LinearLayoutManager(this) adapter = MyAdapter(list,this) rcView.adapter = adapter } override fun onNavigationItemSelected(item: MenuItem): Boolean { when(item.itemId){ R.id.id_fish -> { Toast.makeText(this,”Id fish”,Toast.LENGTH_SHORT).show() adapter?.updateAdapter(fillArras(resources.getStringArray(R.array.fish), resources.getStringArray(R.array.fish_content),getImageId(R.array.fish_image_array))) }… Read More »Справочник рыбака на Kotlin: Урок 10

Библиотека для меню: FlowingDrawer Копируем эти строчки в наш: build.gradle (Module: app) implementation ‘com.mxn.soul:flowingdrawer-core:2.1.0’implementation ‘com.nineoldandroids:library:2.4.0’   >>>Ссылка на библиотеку FlowingDrawer<<< MainActivity.java import androidx.appcompat.app.AppCompatActivity;import androidx.fragment.app.FragmentManager;import android.os.Bundle;public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); setupMenu(); } private void setupMenu() { FragmentManager fm = getSupportFragmentManager(); MenuFragmentList mMenuFragment = (MenuFragmentList) fm.findFragmentById(R.id.id_container_menu); if (mMenuFragment == null) { mMenuFragment = new MenuFragmentList(); fm.beginTransaction().add(R.id.id_container_menu, mMenuFragment).commit(); } }} MenuFragmentList.java import android.os.Bundle;import android.view.LayoutInflater;import… Read More »Do You Know? / Энциклопедия / Урок 1

MainActivity.java import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.widget.ListView; import org.jsoup.Jsoup; import org.jsoup.nodes.Document; import org.jsoup.nodes.Element; import org.jsoup.select.Elements; import java.io.IOException; import java.util.ArrayList; import java.util.List; public class MainActivity extends AppCompatActivity { private Document doc; private Thread secThread; private Runnable runnable; private ListView listView; private CustomArrayAdapter adapter; private List<ListItemClass> arrayList; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); init(); } private void init() { listView = findViewById(R.id.listView); arrayList = new ArrayList<>(); adapter =… Read More »Парсинг сайтов: Урок 3

На этом уроке нам не понадобятся другие классы мы будем только работать с классом LogoActivity.  LogoActivity import android.os.Bundle; import android.text.TextUtils; import android.view.View; import android.widget.EditText; import android.widget.Toast; import androidx.annotation.NonNull; import androidx.annotation.Nullable; import androidx.appcompat.app.AppCompatActivity; import com.google.android.gms.tasks.OnCompleteListener; import com.google.android.gms.tasks.Task; import com.google.firebase.auth.AuthResult; import com.google.firebase.auth.FirebaseAuth; import com.google.firebase.auth.FirebaseUser; public class LoginActivity extends AppCompatActivity { private EditText edLogin, edPassword; private FirebaseAuth mAuth; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.login_layout); init(); } @Override protected void onStart()… Read More »Firebase Authentication

MainActivity public class MainActivity extends AppCompatActivity { private int[] numbers = {23,32,6,78,9}; private String[] texts = {“Привет”,”Как дела”}; private int[] numbers2 = new int[10]; private boolean is_start = true; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); numbers2[6] = 5; numbers2[6] = 9; is_start = false; for(int i = 0; i < 10; i++) { Log.d(“MyLog”,”Данные из i : ” + i); } Log.d(“MyLog”,”Данные из массива : ” + numbers2[6]);… Read More »Урок 6N: Массивы и Циклы

MainActivity import androidx.appcompat.app.AppCompatActivity; import android.content.Intent; import android.os.Bundle; import android.text.TextUtils; import android.view.View; import android.widget.EditText; import android.widget.Toast; import com.google.firebase.database.DatabaseReference; import com.google.firebase.database.FirebaseDatabase; public class MainActivity extends AppCompatActivity { private EditText edName, edSecName, edEmail; private DatabaseReference mDataBase; private String USER_KEY = “User”; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); init(); } private void init() { edName = findViewById(R.id.edName); edSecName = findViewById(R.id.edSecName); edEmail = findViewById(R.id.edEmail); mDataBase = FirebaseDatabase.getInstance().getReference(USER_KEY); } public void onClickSave(View view) {… Read More »Firebase Чтение данных из базы данных

MainActivity import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.text.TextUtils; import android.view.View; import android.widget.EditText; import android.widget.Toast; import com.google.firebase.database.DatabaseReference; import com.google.firebase.database.FirebaseDatabase; public class MainActivity extends AppCompatActivity { private EditText edName, edSecName, edEmail; private DatabaseReference mDataBase; private String USER_KEY = “User”; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); init(); } private void init() { edName = findViewById(R.id.edName); edSecName = findViewById(R.id.edSecName); edEmail = findViewById(R.id.edEmail); mDataBase = FirebaseDatabase.getInstance().getReference(USER_KEY); } public void onClickSave(View view) { String id… Read More »Firebase Создаем Базу Данных

Код который изменился “Справочник рыбака” MainActivity.java package com.neco_desarrollo.fisher_hanbook; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.preference.PreferenceManager; import android.view.View; import androidx.core.view.GravityCompat; import androidx.appcompat.app.ActionBarDrawerToggle; import android.view.MenuItem; import com.google.android.material.navigation.NavigationView; import com.neco_desarrollo.fisher_hanbook.settings.SettingsActivity; import com.neco_desarrollo.fisher_hanbook.utils.CustomArrayAdapter; import com.neco_desarrollo.fisher_hanbook.utils.ListItemClass; import androidx.drawerlayout.widget.DrawerLayout; import androidx.appcompat.app.AppCompatActivity; import androidx.appcompat.widget.Toolbar; import android.view.Menu; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import java.util.ArrayList; import java.util.Arrays; import java.util.List; public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener { private ListView list; private String[] array, arraySecName; private CustomArrayAdapter adapter;… Read More »“Справочник рыбака” Урок 14