android实现一个简易电话簿、打电话、发短信代码和布局文件

以下是一个简易电话簿的实现，包括打电话和发送短信功能。需要注意的是，需要在 AndroidManifest.xml 文件中添加对应的权限。

布局文件 activity_main.xml：

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <ListView
        android:id="@+id/contact_list"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:padding="16dp">

        <EditText
            android:id="@+id/search_text"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:hint="Search contacts" />

        <Button
            android:id="@+id/search_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Search" />
    </LinearLayout>

</LinearLayout>

联系人列表项布局文件 contact_item.xml：

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:padding="16dp">

    <TextView
        android:id="@+id/name_text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:textStyle="bold" />

    <TextView
        android:id="@+id/phone_text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="16sp" />

    <TextView
        android:id="@+id/email_text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="16sp" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <Button
            android:id="@+id/call_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Call" />

        <Button
            android:id="@+id/sms_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="SMS" />
    </LinearLayout>

</LinearLayout>

Java 代码 MainActivity.java：

public class MainActivity extends AppCompatActivity {

    private List<Contact> contactList;
    private ContactAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // 初始化联系人列表
        contactList = new ArrayList<>();
        adapter = new ContactAdapter(this, contactList);
        ListView contactListView = findViewById(R.id.contact_list);
        contactListView.setAdapter(adapter);

        // 添加联系人
        Contact contact1 = new Contact("John Smith", "1234567890", "john.smith@example.com");
        Contact contact2 = new Contact("Jane Doe", "0987654321", "jane.doe@example.com");
        Contact contact3 = new Contact("Bob Johnson", "5555555555", "bob.johnson@example.com");
        contactList.add(contact1);
        contactList.add(contact2);
        contactList.add(contact3);

        // 设置联系人列表项点击事件
        contactListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                Contact contact = contactList.get(position);
                String phone = contact.getPhone();
                String email = contact.getEmail();

                // 打电话
                Intent callIntent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phone));
                startActivity(callIntent);

                // 发短信
                Intent smsIntent = new Intent(Intent.ACTION_SENDTO, Uri.parse("smsto:" + phone));
                smsIntent.putExtra("sms_body", "Hello, " + contact.getName() + "!");
                startActivity(smsIntent);
            }
        });

        // 设置搜索按钮点击事件
        Button searchButton = findViewById(R.id.search_button);
        searchButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                EditText searchText = findViewById(R.id.search_text);
                String query = searchText.getText().toString().toLowerCase();

                List<Contact> filteredList = new ArrayList<>();
                for (Contact contact : contactList) {
                    if (contact.getName().toLowerCase().contains(query)
                            || contact.getPhone().contains(query)
                            || contact.getEmail().toLowerCase().contains(query)) {
                        filteredList.add(contact);
                    }
                }

                adapter.clear();
                adapter.addAll(filteredList);
                adapter.notifyDataSetChanged();
            }
        });
    }
}

联系人数据模型类 Contact.java：

public class Contact {
    private String name;
    private String phone;
    private String email;

    public Contact(String name, String phone, String email) {
        this.name = name;
        this.phone = phone;
        this.email = email;
    }

    public String getName() {
        return name;
    }

    public String getPhone() {
        return phone;
    }

    public String getEmail() {
        return email;
    }
}

联系人列表适配器类 ContactAdapter.java：

public class ContactAdapter extends ArrayAdapter<Contact> {

    public ContactAdapter(Context context, List<Contact> contacts) {
        super(context, 0, contacts);
    }

    @NonNull
    @Override
    public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
        if (convertView == null) {
            convertView = LayoutInflater.from(getContext()).inflate(R.layout.contact_item, parent, false);
        }

        Contact contact = getItem(position);

        TextView nameText = convertView.findViewById(R.id.name_text);
        nameText.setText(contact.getName());

        TextView phoneText = convertView.findViewById(R.id.phone_text);
        phoneText.setText(contact.getPhone());

        TextView emailText = convertView.findViewById(R.id.email_text);
        emailText.setText(contact.getEmail());

        Button callButton = convertView.findViewById(R.id.call_button);
        callButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String phone = contact.getPhone();
                Intent callIntent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phone));
                getContext().startActivity(callIntent);
            }
        });

        Button smsButton = convertView.findViewById(R.id.sms_button);
        smsButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String phone = contact.getPhone();
                Intent smsIntent = new Intent(Intent.ACTION_SENDTO, Uri.parse("smsto:" + phone));
                smsIntent.putExtra("sms_body", "Hello, " + contact.getName() + "!");
                getContext().startActivity(smsIntent);
            }
        });

        return convertView;
    }
}