查询联系人姓名和电话

不念不忘少年蓝@ 2022-08-19 13:18 178阅读 0赞

1、布局文件

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" >
    
        <TextView
            android:id="@+id/result"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="@android:color/black"
            android:textSize="25dp" />
    
    </LinearLayout>

2、MainActivity

public class MainActivity extends Activity {
    	
    	private String[] columns = {
    			Contacts._ID,//获得ID值
    			Contacts.DISPLAY_NAME,//获取姓名
    			Phone.NUMBER,//获得电话
    			Phone.CONTACT_ID
    	};
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            TextView tv = (TextView)findViewById(R.id.result);
            tv.setText(getQueryData());//为标签设置数据
        }
        private String getQueryData(){
        	StringBuilder sb = new StringBuilder();//用于保存字符串
        	ContentResolver resolver = getContentResolver();//获得ContentResolver对象
        	Cursor cursor = resolver.query(Contacts.CONTENT_URI, null, null, null, null);//查询记录
        	while(cursor.moveToNext()){
        		int idIndex = cursor.getColumnIndex(columns[0]);//获得ID值得索引
        		int displayNameIndex = cursor.getColumnIndex(columns[1]);//获得姓名索引
        		int id  = cursor.getInt(idIndex);//获得id
        		String displayName = cursor.getString(displayNameIndex);//获得名称
        		Cursor phone = resolver.query(Phone.CONTENT_URI, null, columns[3]+"="+id, null, null);
        		while(phone.moveToNext()){
        			int phoneNumberIndex = phone.getColumnIndex(columns[2]);//获得电话索引
        			String phoneNumber = phone.getString(phoneNumberIndex);//获得电话
        			sb.append(displayName+":"+phoneNumber+"\n");//保存数据
        		}
        	}
        	cursor.close();//关闭cursor
        	return sb.toString();
        }
    }

3、AndroidManifest设置读取联系人记录的权限

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

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[Center]: /images/20220731/dddd28b99c35416eaabf9de412e3f190.png