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Get Audio From INTERNAL_CONTENT_URI

Author: admin - Posted: 03/07/20 - Update: 03/07/20

-- Giả sử ta cần lấy List Audio từ bộ nhớ máy--

1. Tạo Class: Song

public class Song {
    private String data;
    private int size;
    private String title;
    private int duration;
    private String artist;
    private String album;
    private Bitmap thumbnail;

    // thêm Getter và Setter nhé ...
}

public class Song {

private String data;

private int size;

private String title;

private int duration;

private String artist;

private String album;

private Bitmap thumbnail;

// thêm Getter và Setter nhé ...

}

2. Tạo Class: SystemAudio

package com.example.miniaudioplayer.utils;

import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.provider.MediaStore;

import com.example.miniaudioplayer.model.Song;

import java.util.ArrayList;

public class SystemAudio {
    private ContentResolver resolver;

    public SystemAudio(Context context) {
        this.resolver = context.getContentResolver();
    }

    public ArrayList<Song> getAudioList(){
        ArrayList<Song> songs = new ArrayList<>();
        Cursor cursor = resolver.query(
                MediaStore.Audio.Media.INTERNAL_CONTENT_URI,
                null,
                null,
                null,
                null
        );
        // Một vài URI khác để sử dụng:
        // ContactsContract.Contacts.CONTENT_URI
        // Telephony.Sms.CONTENT_URI
        // CallLog.CONTENT_URI
        // MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
        // MediaStore.Audio.Media.INTERNAL_CONTENT_URI

        cursor.moveToFirst();

        int indexData = cursor.getColumnIndex(MediaStore.Audio.AudioColumns.DATA);
        int indexSize = cursor.getColumnIndex(MediaStore.Audio.AudioColumns.SIZE);
        int indexTitle = cursor.getColumnIndex(MediaStore.Audio.AudioColumns.TITLE);
        int indexDuration = cursor.getColumnIndex(MediaStore.Audio.AudioColumns.DURATION);
        int indexArtist = cursor.getColumnIndex(MediaStore.Audio.AudioColumns.ARTIST);
        int indexAlbum = cursor.getColumnIndex(MediaStore.Audio.AudioColumns.ALBUM);

        while (cursor.isAfterLast() == false) {
            // Để xem chi tiết các thuộc tính của Audio, có thể Log ra để nhìn:
            // for (int i = 0; i < cursor.getColumnCount(); i++) {
            //    Log.e(cursor.getColumnName(i), cursor.getString(i) + "");
            // }
            // Log.e("=======================", "========================= ");

            String data = cursor.getString(indexData);
            int size = cursor.getInt(indexSize);
            int duration = cursor.getInt(indexDuration);
            String title = cursor.getString(indexTitle);
            String artist = cursor.getString(indexArtist);
            String album = cursor.getString(indexAlbum);
            Bitmap thumbnail = takeBitmapFromData(data);

            Song song = new Song();
            song.setAlbum(album);
            song.setArtist(artist);
            song.setData(data);
            song.setDuration(duration);
            song.setSize(size);
            song.setTitle(title);
            newSong.setThumbnail(thumbnail);
        
            songs.add(song);
            cursor.moveToNext();
        }
        cursor.close();
        return songs;
    }

    public Bitmap takeBitmapFromData(String linkData){
        MediaMetadataRetriever mmr = new MediaMetadataRetriever();
        mmr.setDataSource(linkData);
        byte [] data = mmr.getEmbeddedPicture();
        Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
        return bitmap;
    }
}

package com.example.miniaudioplayer.utils;

import android.content.ContentResolver;

import android.content.Context;

import android.database.Cursor;

import android.provider.MediaStore;

import com.example.miniaudioplayer.model.Song;

import java.util.ArrayList;

public class SystemAudio {

private ContentResolver resolver;

public SystemAudio(Context context) {

this.resolver = context.getContentResolver();

}

public ArrayList<Song> getAudioList(){

ArrayList<Song> songs = new ArrayList<>();

Cursor cursor = resolver.query(

MediaStore.Audio.Media.INTERNAL_CONTENT_URI,

null,

null

);

// Một vài URI khác để sử dụng:

// ContactsContract.Contacts.CONTENT_URI

// Telephony.Sms.CONTENT_URI

// CallLog.CONTENT_URI

// MediaStore.Audio.Media.EXTERNAL_CONTENT_URI

// MediaStore.Audio.Media.INTERNAL_CONTENT_URI

cursor.moveToFirst();

int indexData = cursor.getColumnIndex(MediaStore.Audio.AudioColumns.DATA);

int indexSize = cursor.getColumnIndex(MediaStore.Audio.AudioColumns.SIZE);

int indexTitle = cursor.getColumnIndex(MediaStore.Audio.AudioColumns.TITLE);

int indexDuration = cursor.getColumnIndex(MediaStore.Audio.AudioColumns.DURATION);

int indexArtist = cursor.getColumnIndex(MediaStore.Audio.AudioColumns.ARTIST);

int indexAlbum = cursor.getColumnIndex(MediaStore.Audio.AudioColumns.ALBUM);

while (cursor.isAfterLast() == false) {

// Để xem chi tiết các thuộc tính của Audio, có thể Log ra để nhìn:

// for (int i = 0; i < cursor.getColumnCount(); i++) {

// Log.e(cursor.getColumnName(i), cursor.getString(i) + "");

// }

// Log.e("=======================", "========================= ");

String data = cursor.getString(indexData);

int size = cursor.getInt(indexSize);

int duration = cursor.getInt(indexDuration);

String title = cursor.getString(indexTitle);

String artist = cursor.getString(indexArtist);

String album = cursor.getString(indexAlbum);

Bitmap thumbnail = takeBitmapFromData(data);

Song song = new Song();

song.setAlbum(album);

song.setArtist(artist);

song.setData(data);

song.setDuration(duration);

song.setSize(size);

song.setTitle(title);

newSong.setThumbnail(thumbnail);

songs.add(song);

cursor.moveToNext();

}

cursor.close();

return songs;

}

public Bitmap takeBitmapFromData(String linkData){

MediaMetadataRetriever mmr = new MediaMetadataRetriever();

mmr.setDataSource(linkData);

byte [] data = mmr.getEmbeddedPicture();

Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);

return bitmap;

}

3. Tại MainActivity.class

    ArrayList<Song> songs;
    systemAudio = new SystemAudio(this);
    songs = systemAudio.getAudioList();

ArrayList<Song> songs;

systemAudio = new SystemAudio(this);

songs = systemAudio.getAudioList();

1. Tạo Class: Song

2. Tạo Class: SystemAudio

3. Tại MainActivity.class

Android

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