Examples of Android SDK basics usage in production apps?

Explore the usage of Android SDK basics in real-world applications. This guide provides examples of essential components, enhancing your Android development skills.

Android SDK, Android Development, Mobile Apps, Android Examples, SDK Basics, Production Apps

// Example of using a RecyclerView in an Android app import android.os.Bundle; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; import androidx.annotation.NonNull; import androidx.appcompat.app.AppCompatActivity; import androidx.recyclerview.widget.LinearLayoutManager; import androidx.recyclerview.widget.RecyclerView; import java.util.ArrayList; import java.util.List; public class MainActivity extends AppCompatActivity { private RecyclerView recyclerView; private MyAdapter myAdapter; private List itemList; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); recyclerView = findViewById(R.id.recyclerView); recyclerView.setLayoutManager(new LinearLayoutManager(this)); // Sample data itemList = new ArrayList<>(); for (int i = 1; i <= 100; i++) { itemList.add("Item " + i); } myAdapter = new MyAdapter(itemList); recyclerView.setAdapter(myAdapter); } class MyAdapter extends RecyclerView.Adapter { private List items; MyAdapter(List items) { this.items = items; } @NonNull @Override public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { View view = getLayoutInflater().inflate(android.R.layout.simple_list_item_1, parent, false); return new ViewHolder(view); } @Override public void onBindViewHolder(@NonNull ViewHolder holder, int position) { holder.textView.setText(items.get(position)); } @Override public int getItemCount() { return items.size(); } class ViewHolder extends RecyclerView.ViewHolder { TextView textView; ViewHolder(View itemView) { super(itemView); textView = itemView.findViewById(android.R.id.text1); } } } }

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