Android查看联系人简单记录

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简单实现打印联系人信息，可以作为插入联系人的基础和主要代码块，作为个人记录的小逻辑

 package com.lgqrlchinese.contactstest;

 import android.Manifest;

 import android.content.pm.PackageManager;

 import android.database.Cursor;

 import android.net.Uri;

 import android.provider.ContactsContract;

 import android.support.v4.app.ActivityCompat;

 import android.support.v4.content.ContextCompat;

 import android.support.v7.app.AppCompatActivity;

 import android.os.Bundle;

 import android.view.View;

 import android.widget.Toast;

 public class MainActivity extends AppCompatActivity {

     //动态获取权限

     static final String[] PERMISSION = new String[]{

             Manifest.permission.READ_CONTACTS,

     };

     @Override

     protected void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.activity_main);

         MyPermission();

     }

     public void click(View view) {

         Uri uri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;

         Cursor query = getContentResolver().query(uri, null, null, null, null);

         if (query != null) {

             while (query.moveToNext()) {

                 String displayName = query.getString(query.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));

                 String displayNumber = query.getString(query.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

                 System.out.println(displayName + ":" + displayNumber);

             }

         }

     }

     //动态获取权限

     public void MyPermission() {

         if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {

             //Android 6.0申请权限

             ActivityCompat.requestPermissions(this, PERMISSION, 1);

         } else {

             Toast.makeText(this, "成功", Toast.LENGTH_SHORT).show();

         }

     }

 }