ContentResolver

程序员文章站 2022-03-01 15:52:26

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ContentResolver获取手机联系人

添加权限

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

package com.example.day10;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

import android.Manifest;
import android.content.ContentResolver;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {
    private Button but;
    private static final String TAG = "MainActivity";


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        but = (Button) findViewById(R.id.but);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            requestPermissions(new String[]{Manifest.permission.READ_CONTACTS, Manifest.permission.WRITE_CONTACTS}, 100);
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == 100 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            but.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    resolverMethod();
                }
            });
        }
    }

    private void resolverMethod() {
        Uri uri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
        ContentResolver contentResolver = getContentResolver();
        String[] strings = {ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME, ContactsContract.CommonDataKinds.Phone.NUMBER};
        Cursor query = contentResolver.query(uri, strings, null, null, null);
        while (query.moveToNext()) {
            String number = query.getString(query.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
            String name = query.getString(query.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
            Log.i(TAG, "onRequestPermissionsResult: ----" + name + "---" + number);
        }
    }
}

利用观察者读取短信验证码

package com.example.day10;

import android.content.ContentResolver;
import android.content.Context;
import android.database.ContentObserver;
import android.database.Cursor;
import android.os.Handler;
import android.os.Message;
import android.provider.Telephony;

public class SmsObserver extends ContentObserver {
    private Handler handler;
    private ContentResolver contentResolver;

    public SmsObserver(Handler handler, Context context) {
        super(handler);
        this.handler = handler;
        contentResolver = context.getContentResolver();
    }

    @Override
    public void onChange(boolean selfChange) {
        super.onChange(selfChange);
        String[] strings = {Telephony.Sms.ADDRESS, Telephony.Sms.BODY};
        Cursor query = contentResolver.query(Telephony.Sms.CONTENT_URI, strings, null, null, null);
        if (query !=null){
            query.moveToFirst();
            String string = query.getString(query.getColumnIndex(Telephony.Sms.BODY));
            Message obtain = Message.obtain();
            obtain.obj =string;
            handler.sendMessage(obtain);
        }
    }
}

Activity代码

package com.example.day10;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

import android.content.ContentResolver;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.provider.Telephony;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class Main2Activity extends AppCompatActivity {
    private Handler handler = new Handler() {
        @Override
        public void handleMessage(@NonNull Message msg) {
            super.handleMessage(msg);
            String string = (String) msg.obj;
            Toast.makeText(Main2Activity.this, string, Toast.LENGTH_SHORT).show();
        }
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);
        SmsObserver smsObserver = new SmsObserver(handler, Main2Activity.this);
        ContentResolver contentResolver = getContentResolver();
        contentResolver.registerContentObserver(Telephony.Sms.CONTENT_URI, true, smsObserver);
    }
}

手机的权限

获取图库：(读sd卡的权限)
- (1)uri:MediaStore.Images.Media.EXTERNAL_CONTENT_URI
- (2)字段：
  MediaStore.Images.Media.TITLE; 图片名称
  MediaStore.Images.Media.SIZE; 大小
  MediaStore.Images.Media.DATA; 地址
  MediaStore.Images.Media.HEIGHT; 高
  MediaStore.Images.Media.WIDTH; 宽
获取视频：(读sd卡的权限)
- (1)uri:MediaStore.Video.Media.EXTERNAL_CONTENT_URI
- (2)字段：TITLE：歌名 ARTIST 歌手 DURATION 总时长 DATA 地址 SIZE 大小
- String[] strs= new String[]{
  MediaStore.Video.Media.TITLE, 歌名
  MediaStore.Video.Media.ARTIST, 歌手
  MediaStore.Video.Media.DURATION, 总时长
  MediaStore.Video.Media.DATA, 地址
  MediaStore.Audio.Media.SIZE}; 大小

*获取音频 : (读sd卡的权限)
* (1)uri:MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
* (2)字段：TITLE：歌名 ARTIST 歌手 DURATION 总时长 DATA 地址 SIZE 大小
* String[] strs= new String[]{
MediaStore.Audio.Media.TITLE, 歌名
MediaStore.Audio.Media.ARTIST, 歌手
MediaStore.Audio.Media.DURATION, 总时长
MediaStore.Audio.Media.DATA, 地址
MediaStore.Audio.Media.SIZE}; 大小

*获取联系人: (读联系人的权限)
* (1)uri:ContactsContract.CommonDataKinds.Phone.CONTENT_URI
* (2)字段：Phone.DISPLAY_NAME 姓名 NUMBER 电话
* String[] strs= new String[]{
ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME, 姓名
ContactsContract.CommonDataKinds.Phone.NUMBER}; 电话

*获取短信: (读短信的权限)
* (1)uri:Telephony.Sms.CONTENT_URI
* (2)字段：ADDRESS 地址 BODY 内容
* String[] strs= new String[]{
Telephony.Sms.ADDRESS, 地址
Telephony.Sms.BODY}; 内容

*通话记录：
* (1)uri:CallLog.Calls.CONTENT_URI
* (2)字段：
NUMBER:电话号码
DATE：时间毫秒
DURATION：总时长秒
TYPE 类型

“Accept-Encoding”, “identity”
清单文件中:
联网的权限:

写SD卡权限:

读SD卡权限:

读取联系人的权限：

读取短信的权限：

读取通话记录的权限：

ContentResolver