Java 如何从Android Studio中检索到的联系人列表中呼叫联系人?

Java 如何从Android Studio中检索到的联系人列表中呼叫联系人?,java,android,Java,Android,此代码允许我从用户的手机中检索联系人列表并显示它们。我正在做一些修改,我为每个联系人添加了一个“呼叫”按钮,但我很难理解如何只检索电话号码。一旦我得到了电话号码,我会这样做来拨打该号码: Intent callIntent = new Intent(Intent.ACTION_CALL); callIntent.setData(Uri.parse("0377778888")); 我知道打哪个号码有多准确?如何知道x用户有y号码,然后将该号码传递给目标用户 下面是代码: Contacts.jav

此代码允许我从用户的手机中检索联系人列表并显示它们。我正在做一些修改,我为每个联系人添加了一个“呼叫”按钮,但我很难理解如何只检索电话号码。一旦我得到了电话号码,我会这样做来拨打该号码:

Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("0377778888"));
我知道打哪个号码有多准确?如何知道x用户有y号码,然后将该号码传递给目标用户

下面是代码:
Contacts.java

package edu.utep.cs.cs4330.easytech;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.ContentResolver;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.provider.ContactsContract;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;

import java.util.ArrayList;

public class Contacts extends Activity {
    private ListView mListView;
    private ProgressDialog pDialog;
    private Handler updateBarHandler;
    ArrayList<String> contactList;
    Cursor cursor;
    int counter;
    Button callContact;

    @Override
    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.contacts_list_view);
        pDialog = new ProgressDialog(this);
        pDialog.setMessage("Reading contacts...");
        pDialog.setCancelable(false);
        pDialog.show();
        mListView = (ListView) findViewById(R.id.list);
        updateBarHandler = new Handler();

        callContact = (Button) findViewById(R.id.callContact);

        // Since reading contacts takes more time, let's run it on a separate thread.
        new Thread(new Runnable() {
            @Override
            public void run() {
                getContacts();
            }
        }).start();

        // Set onclicklistener to the list item.
        mListView.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view,
                                    int position, long id) {
                //TODO Do whatever you want with the list data

                Toast.makeText(getApplicationContext(), "Item clicked : \n" + contactList.get(position), Toast.LENGTH_SHORT).show();
            }
        });

    }

    public void getContacts() {
        contactList = new ArrayList<String>();
        String phoneNumber = null;
        String email = null;
        Uri CONTENT_URI = ContactsContract.Contacts.CONTENT_URI;
        String _ID = ContactsContract.Contacts._ID;
        String DISPLAY_NAME = ContactsContract.Contacts.DISPLAY_NAME;
        String HAS_PHONE_NUMBER = ContactsContract.Contacts.HAS_PHONE_NUMBER;
        Uri PhoneCONTENT_URI = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
        String Phone_CONTACT_ID = ContactsContract.CommonDataKinds.Phone.CONTACT_ID;
        String NUMBER = ContactsContract.CommonDataKinds.Phone.NUMBER;
        Uri EmailCONTENT_URI = ContactsContract.CommonDataKinds.Email.CONTENT_URI;
        String EmailCONTACT_ID = ContactsContract.CommonDataKinds.Email.CONTACT_ID;
        String DATA = ContactsContract.CommonDataKinds.Email.DATA;
        StringBuffer output;
        ContentResolver contentResolver = getContentResolver();
        cursor = contentResolver.query(CONTENT_URI, null, null, null, null);
        // Iterate every contact in the phone
        if (cursor.getCount() > 0) {
            counter = 0;
            while (cursor.moveToNext()) {
                output = new StringBuffer();
                // Update the progress message
                updateBarHandler.post(new Runnable() {
                    public void run() {
                        pDialog.setMessage("Reading contacts : " + counter++ + "/" + cursor.getCount());
                    }
                });
                String contact_id = cursor.getString(cursor.getColumnIndex(_ID));
                String name = cursor.getString(cursor.getColumnIndex(DISPLAY_NAME));
                int hasPhoneNumber = Integer.parseInt(cursor.getString(cursor.getColumnIndex(HAS_PHONE_NUMBER)));
                if (hasPhoneNumber > 0) {
                    output.append("\nName: " + name);
                    //This is to read multiple phone numbers associated with the same contact
                    Cursor phoneCursor = contentResolver.query(PhoneCONTENT_URI, null, Phone_CONTACT_ID + " = ?", new String[]{contact_id}, null);
                    while (phoneCursor.moveToNext()) {
                        phoneNumber = phoneCursor.getString(phoneCursor.getColumnIndex(NUMBER));
                        output.append("\n" + phoneNumber);
                    }
                    phoneCursor.close();
                    // Read every email id associated with the contact
                    Cursor emailCursor = contentResolver.query(EmailCONTENT_URI, null, EmailCONTACT_ID + " = ?", new String[]{contact_id}, null);
                    while (emailCursor.moveToNext()) {
                        email = emailCursor.getString(emailCursor.getColumnIndex(DATA));
                        output.append("\n Email:" + email);
                    }
                    emailCursor.close();
                }
                // Add the contact to the ArrayList
                contactList.add(output.toString());
            }
            // ListView has to be updated using a ui thread
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getApplicationContext(), R.layout.list_item, R.id.text1, contactList);
                    mListView.setAdapter(adapter);
                }
            });
            // Dismiss the progressbar after 500 millisecondds
            updateBarHandler.postDelayed(new Runnable() {
                @Override
                public void run() {
                    pDialog.cancel();
                }
            }, 500);
        }
    }
}
包edu.utep.cs.cs4330.easytech;
导入android.app.Activity;
导入android.app.ProgressDialog;
导入android.content.ContentResolver;
导入android.database.Cursor;
导入android.net.Uri;
导入android.os.Bundle;
导入android.os.Handler;
导入android.provider.contacts合同;
导入android.view.view;
导入android.widget.AdapterView;
导入android.widget.AdapterView.OnItemClickListener;
导入android.widget.ArrayAdapter;
导入android.widget.Button;
导入android.widget.ListView;
导入android.widget.Toast;
导入java.util.ArrayList;
公共类联系人扩展活动{
私有列表视图;
私人对话;
私有处理程序updateBarHandler;
ArrayList联系人列表;
光标;
整数计数器;
按钮呼叫触点;
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.contacts\u list\u视图);
pDialog=新建进度对话框(此对话框);
pDialog.setMessage(“正在读取联系人…”);
pDialog.setCancelable(假);
pDialog.show();
mListView=(ListView)findViewById(R.id.list);
updateBarHandler=新处理程序();
callContact=(按钮)findViewById(R.id.callContact);
//因为读取联系人需要更多的时间,所以让我们在单独的线程上运行它。
新线程(newrunnable()){
@凌驾
公开募捐{
getContacts();
}
}).start();
//将onclicklistener设置为列表项。
setOnItemClickListener(新的OnItemClickListener(){
@凌驾
public void onItemClick(AdapterView父级、视图、,
内部位置,长id){
//TODO可对列表数据执行任何操作
Toast.makeText(getApplicationContext(),“单击的项目:\n”+contactList.get(位置),Toast.LENGTH\u SHORT.show();
}
});
}
公共联系人(){
contactList=新的ArrayList();
字符串phoneNumber=null;
字符串email=null;
Uri CONTENT\u Uri=Contacts contract.Contacts.CONTENT\u Uri;
String _ID=Contacts contact.Contacts.\u ID;
String DISPLAY\u NAME=Contacts contract.Contacts.DISPLAY\u NAME;
字符串HAS\u PHONE\u NUMBER=Contacts contract.Contacts.HAS\u PHONE\u NUMBER;
Uri PhoneCONTENT\u Uri=ContactsContract.CommonDataTypes.Phone.CONTENT\u Uri;
字符串Phone\u CONTACT\u ID=contacts contract.commondatatypes.Phone.CONTACT\u ID;
字符串编号=contacts contract.commonDataTypes.Phone.NUMBER;
Uri EmailCONTENT\u Uri=ContactsContract.CommonDataTypes.Email.CONTENT\u Uri;
字符串EmailCONTACT_ID=contacts contract.commondatatypes.Email.CONTACT_ID;
字符串数据=ContactsContract.CommonDataTypes.Email.DATA;
字符串缓冲输出;
ContentResolver ContentResolver=getContentResolver();
cursor=contentResolver.query(CONTENT\u URI,null,null,null);
//迭代电话中的每个联系人
if(cursor.getCount()>0){
计数器=0;
while(cursor.moveToNext()){
输出=新的StringBuffer();
//更新进度消息
updateBarHandler.post(新的Runnable(){
公开募捐{
pDialog.setMessage(“正在读取联系人:“+counter++++”/“+cursor.getCount()”);
}
});
String contact_id=cursor.getString(cursor.getColumnIndex(_id));
字符串名称=cursor.getString(cursor.getColumnIndex(DISPLAY_name));
int hasPhoneNumber=Integer.parseInt(cursor.getString(cursor.getColumnIndex(HAS_PHONE_NUMBER));
如果(hasPhoneNumber>0){
output.append(“\n名称:+name”);
//这是为了读取与同一联系人关联的多个电话号码
游标phoneCursor=contentResolver.query(PhoneCONTENT\u URI,null,Phone\u CONTACT\u ID+“=?”,新字符串[]{CONTACT\u ID},null);
while(phoneCursor.moveToNext()){
phoneNumber=phoneCursor.getString(phoneCursor.getColumnIndex(NUMBER));
输出。追加(“\n”+电话号码);
}
phoneCursor.close();
//阅读与联系人关联的每个电子邮件id
Cursor emailCursor=contentResolver.query(EmailCONTENT_URI,null,EmailCONTACT_ID+“=?”,新字符串[]{contact_ID},null);
while(emailCursor.moveToNext()){
email=emailCursor.getString(emailCursor.getColumnIndex(数据));
输出。追加(“\n电子邮件:“+电子邮件”);
}
emailCursor.close();
}
//将联系人添加到ArrayList
contactList.add(output.toString());
}
//必须使用ui线程更新ListView
runOnUiThread(新的Runnable(){
@凌驾
公开募捐{
ArrayAdapter=新的ArrayAdapter(getApplicationContext(),R.layout.list_项,R.id.text1,contactList);
mListView.setAdapter(适配器);
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="edu.utep.cs.cs4330.easytech.Home">

    <ImageView
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:scaleType="centerCrop"
        android:src="@drawable/back4"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:layout_constraintBottom_creator="1"
        tools:layout_constraintLeft_creator="1"
        tools:layout_constraintRight_creator="1"
        tools:layout_constraintTop_creator="1" />

    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_margin="20dp">

        <ListView
            android:id="@+id/list"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />
    </RelativeLayout>

</android.support.constraint.ConstraintLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="5dp"
    android:paddingTop="5dp">

    <Button
        android:id="@+id/callContact"
        android:layout_width="125dp"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_centerInParent="true"
        android:text="Call" />

    <TextView
        android:id="@+id/text1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toLeftOf="@+id/callContact"
        android:layout_alignTop="@+id/callContact"
        android:layout_alignParentLeft="true"
        android:textSize="16sp"
        android:textColor="@android:color/black" />

</RelativeLayout>
intent.setData(Uri.parse("tel:" + bundle.getString("mobilePhone")));
context.startActivity(intent);
// A dilaog that will open when a contact is clicked, verify that you want to delete the contact.
protected void areYouSureDialog(final SelectUser tmpUser) {

    final String userPhoneNumber = tmpUser.getPhone();


    new AlertDialog.Builder(this)
            .setTitle("Call a Contact")
            .setMessage("Are you sure you want to call:" + userPhoneNumber)
            .setPositiveButton("Call", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    callUser(userPhoneNumber);
                }
            })
            .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    // Do nothing.
                }
            })
            .setIcon(android.R.drawable.ic_dialog_alert)
            .show();
}
public void callUser(String phoneNum) {

    Intent callIntent = new Intent(Intent.ACTION_CALL);

    callIntent.setData(Uri.parse("tel:" + phoneNum + ""));

    if (ActivityCompat.checkSelfPermission(CallActivity.this,
            Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
        return;
    }
    startActivity(callIntent);
}
<uses-permission android:name="android.permission.CALL_PHONE" />