Android選擇聯系人并傳回對應号碼

效果圖

關鍵代碼

activity_pick_contact

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.a00xiaoyugmailcom.myapplication.ConnectionSelectActivity"
    android:orientation="vertical"
    android:padding="20dp">

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

        <TextView
            android:layout_width="80dp"
            android:layout_height="wrap_content"
            android:text="收貨人"/>

        <EditText
            android:id="@+id/et_username"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

    </LinearLayout>

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

        <TextView
            android:layout_width="80dp"
            android:layout_height="wrap_content"
            android:text="手機号碼"/>

        <EditText
            android:id="@+id/et_phone"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

    </LinearLayout>

    <Button
        android:id="@+id/btn_select"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/shape_button_normal"
        android:text="選聯系人"
        android:textColor="#ff0000"
        android:layout_marginTop="10dp"/>

</LinearLayout>      

<uses-permission android:name="android.permission.READ_CONTACTS"/>      

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.provider.ContactsContract;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class ConnectionSelectActivity extends AppCompatActivity implements View.OnClickListener {
    private EditText et_username;
    private EditText et_phone;
    private Button btn_select;
    private static final int PICK_CONTACT = 1;
    private static final int PERMISSIONS_REQUEST_READ_CONTACTS = 2;
    private Intent mIntent;

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

        et_username = findViewById(R.id.et_username);
        et_phone = findViewById(R.id.et_phone);
        btn_select = findViewById(R.id.btn_select);

        btn_select.setOnClickListener(this);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch (requestCode) {
            case PICK_CONTACT:
                mIntent = data;
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
                    //申請授權，第一個參數為要申請使用者授權的權限；第二個參數為requestCode 必須大于等于0，主要用于回調的時候檢測，比對特定的onRequestPermissionsResult。
                    //可以從方法名requestPermissions以及第二個參數看出，是支援一次性申請多個權限的，系統會通過對話框逐一詢問使用者是否授權。
                    requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, PERMISSIONS_REQUEST_READ_CONTACTS);

                }else{
                    //如果該版本低于6.0，或者該權限已被授予，它則可以繼續讀取聯系人。
                    getContacts(data);
                }
                break;
            default:
                super.onActivityResult(requestCode, resultCode, data);
                break;
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        if (requestCode == PERMISSIONS_REQUEST_READ_CONTACTS) {
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                // 使用者成功授予權限
                getContacts(mIntent);
            } else {
                Toast.makeText(this, "你拒絕了此應用對讀取聯系人權限的申請！", Toast.LENGTH_SHORT).show();
            }
        }
    }

    @Override
    public void onClick(View view) {
        selectConnection();
    }

    private void selectConnection() {
        Intent intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
        startActivityForResult(intent, PICK_CONTACT);
    }

    private void getContacts(Intent data) {
        if (data == null) {
            return;
        }

        Uri contactData = data.getData();
        if (contactData == null) {
            return;
        }
        String name = "";
        String phoneNumber = "";

        Uri contactUri = data.getData();
        Cursor cursor = getContentResolver().query(contactUri, null, null, null, null);
        if (cursor.moveToFirst()) {
            name = cursor
                    .getString(cursor
                            .getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
            String hasPhone = cursor
                    .getString(cursor
                            .getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));
            String id = cursor.getString(cursor
                    .getColumnIndex(ContactsContract.Contacts._ID));
            if (hasPhone.equalsIgnoreCase("1")) {
                hasPhone = "true";
            } else {
                hasPhone = "false";
            }
            if (Boolean.parseBoolean(hasPhone)) {
                Cursor phones = getContentResolver()
                        .query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                                null,
                                ContactsContract.CommonDataKinds.Phone.CONTACT_ID
                                        + " = " + id, null, null);
                while (phones.moveToNext()) {
                    phoneNumber = phones
                            .getString(phones
                                    .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                }
                phones.close();
            }
            cursor.close();

            et_username.setText(name);
            et_phone.setText(phoneNumber);
        }
    }
}