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
1 package com.lgqrlchinese.contactstest; 2 3 import android.Manifest; 4 import android.content.pm.PackageManager; 5 import android.database.Cursor; 6 import android.net.Uri; 7 import android.provider.ContactsContract; 8 import android.support.v4.app.ActivityCompat; 9 import android.support.v4.content.ContextCompat; 10 import android.support.v7.app.AppCompatActivity; 11 import android.os.Bundle; 12 import android.view.View; 13 import android.widget.Toast; 14 15 public class MainActivity extends AppCompatActivity { 16 17 //动态获取权限 18 static final String[] PERMISSION = new String[]{ 19 Manifest.permission.READ_CONTACTS, 20 }; 21 22 @Override 23 protected void onCreate(Bundle savedInstanceState) { 24 super.onCreate(savedInstanceState); 25 setContentView(R.layout.activity_main); 26 MyPermission(); 27 } 28 29 public void click(View view) { 30 Uri uri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI; 31 Cursor query = getContentResolver().query(uri, null, null, null, null); 32 if (query != null) { 33 while (query.moveToNext()) { 34 String displayName = query.getString(query.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME)); 35 String displayNumber = query.getString(query.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); 36 System.out.println(displayName + ":" + displayNumber); 37 } 38 } 39 40 } 41 42 //动态获取权限 43 public void MyPermission() { 44 if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) { 45 //Android 6.0申请权限 46 ActivityCompat.requestPermissions(this, PERMISSION, 1); 47 } else { 48 Toast.makeText(this, "成功", Toast.LENGTH_SHORT).show(); 49 } 50 } 51 }