ContentProvider 系统URI

Edda ·

更新时间:2024-11-10

· 733 次阅读

ContentProvider 系统URI系统URI系统权限案例一：获取手机联系人案例二：获取手机短信案例三：获取手机图片案例四：获取手机音频案例五：获取手机视频案例六：手机联系人的增删改案例七：自动添加验证码 系统URI

手机系统	URI
获取图库(读sd卡的权限)	MediaStore.Images.Media.EXTERNAL_CONTENT_URI
获取视频(读sd卡的权限)	MediaStore.Video.Media.EXTERNAL_CONTENT_URI
获取音频(读sd卡的权限)	MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
获取联系人(读联系人的权限)	ContactsContract.CommonDataKinds.Phone.CONTENT_URI
获取短信(读短信的权限)	Telephony.Sms.CONTENT_URI
通话记录	CallLog.Calls.CONTENT_URI

系统权限

权限	清单文件
联网权限	uses-permission android:name=“android.permission.INTERNET”
写SD卡权限	uses-permission android:name=“android.permission.WRITE_EXTERNAL_STORAGE”
读SD卡权限	uses-permission android:name=“android.permission.READ_EXTERNAL_STORAGE”
读取联系人权限	uses-permission android:name=“android.permission.READ_CONTACTS”
读取短信权限	uses-permission android:name=“android.permission.READ_SMS”
读取通话记录权限	uses-permission android:name=“android.permission.READ_CALL_LOG”

案例一：获取手机联系人

内容参数：

ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,  姓名
ContactsContract.CommonDataKinds.Phone.NUMBER};  电话

1、添加联系人权限

2、java代码

btnLinkman.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        //动态授权(6.0及以上)
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            requestPermissions(new String[]{Manifest.permission.WRITE_CONTACTS, Manifest.permission.READ_CONTACTS}, 100);
        } else {
            resolverMethod();
        }
    }
});
@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){
            resolverMethod();
        }
    }
    //从数据库获取手机联系人，因为要重用，所以封装成方法
    private void resolverMethod() {
        //获取内容解析者
        ContentResolver contentResolver = getContentResolver();
        //设置手机联系人的uri
        Uri uri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
        String[] strs = new String[]{
                ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,
                ContactsContract.CommonDataKinds.Phone.NUMBER};
        Cursor cursor = contentResolver.query(uri, strs, null, null, null);
        //游标下移
        while (cursor.moveToNext()){
            String name = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
            String number = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
            Toast.makeText(this, name+"+"+number, Toast.LENGTH_SHORT).show();
            //将数据存入对象，便于后续操作
//            JavaBean javaBean = new JavaBean(name,number);
        }
    }

案例二：获取手机短信

内容参数：

Telephony.Sms.ADDRESS, 地址
Telephony.Sms.BODY}; 内容

1、添加授权

2、java代码
动态授权同上

if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
     requestPermissions(new String[]{Manifest.permission.READ_SMS,Manifest.permission.SEND_SMS},101);
} else{
     smsMethod();
}

btnSms.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        ContentResolver contentResolver = getContentResolver();
        Uri uri = Telephony.Sms.CONTENT_URI;
        String[] strs={Telephony.Sms.BODY,Telephony.Sms.ADDRESS};
        Cursor cursor=contentResolver.query(uri,strs,null,null,null);
        while(cursor.moveToNext()){
            String address=cursor.getString(cursor.getColumnIndex(Telephony.Sms.ADDRESS));
            String body=cursor.getString(cursor.getColumnIndex(Telephony.Sms.BODY));
            Toast.makeText(MainActivity.this, address+"--"+body,         }
    }
});

3、在授权回调的方法中,添加相应的逻辑

@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){
            resolverMethod();
        }else if (requestCode == 101 & grantResults[0] == PackageManager.PERMISSION_GRANTED){
            smsMethod();
        }
    }

案例三：获取手机图片

内容参数：

 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

1、添加权限

2、点击事件

	    @Override
            public void onClick(View v) {
                if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
                    requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE,Manifest.permission.WRITE_EXTERNAL_STORAGE},102);
                }else{
                    picMethod();
                }
            }
        });

3、java代码

private void picMethod() {
        //获得ContentResolver
        ContentResolver contentResolver = getContentResolver();
        //获得图库的URI
        Uri uri1 = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;//图库的URI
        Cursor cursor = contentResolver.query(uri1, null, null, null, null);
        while (cursor.moveToNext()){
            //字段
            String title=cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.TITLE));
            //图片的地址
            String data=cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA));
            int height=cursor.getInt(cursor.getColumnIndex(MediaStore.Images.Media.HEIGHT));
            int width=cursor.getInt(cursor.getColumnIndex(MediaStore.Images.Media.WIDTH));
            long size=cursor.getLong(cursor.getColumnIndex(MediaStore.Images.Media.SIZE));
        }
    }

4、回调函数中,添加逻辑

@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){
            resolverMethod();
        }else if (requestCode == 101 & grantResults[0] == PackageManager.PERMISSION_GRANTED){
            smsMethod();
        }else if (requestCode == 102 & grantResults[0] == PackageManager.PERMISSION_GRANTED){
            picMethod();
        }
    }

案例四：获取手机音频

内容参数：

 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
 MediaStore.Audio.Media.ALBUM_ID, 专辑封面的id

1、添加权限

2、点击事件

	    @Override
            public void onClick(View v) {
                if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
                    requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE,Manifest.permission.WRITE_EXTERNAL_STORAGE},103);
                }else{
                    musicMethod();
                }
            }
        });

3、java代码

private void musicMethod() {
        //获得ContentResolver
        ContentResolver contentResolver = getContentResolver();
        //获得音乐的URI
        Uri uri1 = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;//音乐的URI
        Cursor cursor = contentResolver.query(uri1, null, null, null, null);
        while (cursor.moveToNext()){
            //字段
            String title=cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));
            //地址
            String data=cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA));
            //歌手
            String artist=cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST));
            //时长
            long duration=cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media.DURATION));
            //大小
            long size=cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media.SIZE));
        }
    }

4、回调函数中,添加逻辑

 @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){
            resolverMethod();
        }else if (requestCode == 101 & grantResults[0] == PackageManager.PERMISSION_GRANTED){
            smsMethod();
        }else if (requestCode == 102 & grantResults[0] == PackageManager.PERMISSION_GRANTED){
            picMethod();
        }else if (requestCode == 103 & grantResults[0] == PackageManager.PERMISSION_GRANTED){
            musicMethod();
        }
    }

案例五：获取手机视频

内容参数：

 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

1、添加权限

2、添加监听事件

 	   @Override
           public void onClick(View v) {
               if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
                   requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE,Manifest.permission.WRITE_EXTERNAL_STORAGE},104);
               }else{
                   videoMethod();
               }
           }
       });

3、java代码

private void videoMethod() {
       //获得ContentResolver
       ContentResolver contentResolver = getContentResolver();
       //获得视频的URI
       Uri uri1 = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;//视频的URI
//        Uri uri1 = Uri.parse("content://media/external/video/media");
       Cursor cursor = contentResolver.query(uri1, null, null, null, null);
       while (cursor.moveToNext()){
           //字段
           String title=cursor.getString(cursor.getColumnIndex(MediaStore.Video.Media.TITLE));
           String data=cursor.getString(cursor.getColumnIndex(MediaStore.Video.Media.DATA));
           String artist=cursor.getString(cursor.getColumnIndex(MediaStore.Video.Media.ARTIST));
           long duration=cursor.getLong(cursor.getColumnIndex(MediaStore.Video.Media.DURATION));
           long size=cursor.getLong(cursor.getColumnIndex(MediaStore.Video.Media.SIZE));
       }
   }

4、回调函数，添加逻辑

else if (requestCode == 104 & grantResults[0] == PackageManager.PERMISSION_GRANTED){
           videoMethod();
       }

案例六：手机联系人的增删改

private void addPerson() {
        ContentResolver contentResolver = getContentResolver();
        Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");
        //ContactsContract.RawContacts.CONTENT_URI
        ContentValues values = new ContentValues();
        //插入一条空数据,返回当前空数据的id.
        long contactid = ContentUris.parseId(contentResolver.insert(uri, values));
        uri = Uri.parse("content://com.android.contacts/data");
        //添加姓名
        values.put("raw_contact_id", contactid);
        values.put("mimetype", "vnd.android.cursor.item/name");
        values.put("data1", "xiaoming11");
        contentResolver.insert(uri, values);
        values.clear();
        //添加电话
        values.put(ContactsContract.CommonDataKinds.Phone.RAW_CONTACT_ID, contactid);
        //ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE;
        values.put(ContactsContract.Data.MIMETYPE, "vnd.android.cursor.item/phone_v2");
        //ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE;
        values.put(ContactsContract.Data.DATA1, "12312312311");
        contentResolver.insert(uri, values);
        values.clear();
        //添加Email
        values.put("raw_contact_id", contactid);
        //ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE;
        values.put(ContactsContract.Data.MIMETYPE, "vnd.android.cursor.item/email_v2");
        values.put("data1", "11111111@qq.com");
        contentResolver.insert(uri, values);
    }

案例七：自动添加验证码

1、创建一个观察者

/**
 * 创建一个观察者
 * 1,写一个观察者,
 * 2,观察者一直在监视的短信的动态
 * 3,一旦发现有短信的变化(也就是短信的数据库里的数据有变化)
 * 4,就执行相应的业务逻辑
 */
public class SmsObserver extends ContentObserver {
    private ContentResolver contentResolver;
    private Handler handler;
    public SmsObserver(Handler handler, Context context) {
        super(handler);
        this.handler = handler;
        contentResolver = context.getContentResolver();
    }
    @Override
    public void onChange(boolean selfChange) {
        super.onChange(selfChange);
        String[] strs={Telephony.Sms.BODY,Telephony.Sms.ADDRESS};
        Cursor cursor = contentResolver.query(Telephony.Sms.CONTENT_URI, strs, null, null, null);
        if (cursor!=null){
            //获取第一个游标位置
            cursor.moveToFirst();
            String string = cursor.getString(cursor.getColumnIndex(Telephony.Sms.BODY));
            //将获取到的数据发送给Activity
            Message obtain = Message.obtain();
            obtain.obj = string;
            handler.sendMessage(obtain);
        }
    }
}

2、通过观察者将信息发送到EditText

public class Main2Activity extends AppCompatActivity {
    private EditText etSms;
    private SmsObserver smsObserver;
    private ContentResolver contentResolver;
    private Handler handler = new Handler(){
        @Override
        public void handleMessage(@NonNull Message msg) {
            super.handleMessage(msg);
            String s  = (String) msg.obj;
            etSms.setText(s);
        }
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);
        etSms = (EditText) findViewById(R.id.et_sms);
        //动态请求
        requestPermissions(new String[]{Manifest.permission.READ_SMS},110);
        smsObserver = new SmsObserver(handler,this);
        contentResolver = getContentResolver();
        //注册内容观察者
        contentResolver.registerContentObserver(Telephony.Sms.CONTENT_URI,true,smsObserver);
    }
    @Override
    protected void onDestroy() {
        super.onDestroy();
        //注销观察者
        contentResolver.unregisterContentObserver(smsObserver);
    }
}

作者：汪星没有熊

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