Android media store tutorial | List all sdcard audio |List all sdcard video | List all sdcard images

Hello Friends,
       Today, I am going to share my another post on Android Media Store. In this post
I am going to show you how to query media file like audio,images and video using
Android Media Store and Android Content Resolver .

For Listing all Images:

private void parseAllImages() {
        try {
            String[] projection = {MediaStore.Images.Media.DATA};
            cursor = getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                    projection, // Which columns to return
                    null,       // Return all rows
                    null,
                    null);

          
            int size = cursor.getCount();

            /*******  If size is 0, there are no images on the SD Card. *****/

            if (size == 0) {

            } else {

                int thumbID = 0;
                while (cursor.moveToNext()) {

                    int file_ColumnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);

                    /**************** Captured image details ************/

                    /*****  Used to show image on view in LoadImagesFromSDCard class ******/
                    String path = cursor.getString(file_ColumnIndex);

                    String fileName = path.substring(path.lastIndexOf("/") + 1, path.length());

                    MediaFileInfo mediaFileInfo = new MediaFileInfo();
                    mediaFileInfo.setFilePath(path);
                    mediaFileInfo.setFileName(fileName);
                    mediaFileInfo.setFileType(type);
                    mediaList.add(mediaFileInfo);
                }
            }


        } catch (Exception e) {
            e.printStackTrace();
        }
} 

For Listing all Video(.mp4)

private void parseAllVideo() {
        try {
            String name = null;
            String[] thumbColumns = {MediaStore.Video.Thumbnails.DATA,
                    MediaStore.Video.Thumbnails.VIDEO_ID};

            int video_column_index;
            String[] proj = {MediaStore.Video.Media._ID,
                    MediaStore.Video.Media.DATA,
                    MediaStore.Video.Media.DISPLAY_NAME,
                    MediaStore.Video.Media.SIZE};
            Cursor videocursor = getContentResolver().query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
                    proj, null, null, null);
            int count = videocursor.getCount();
            Log.d("No of video", "" + count);
            for (int i = 0; i < count; i++) {
                MediaFileInfo mediaFileInfo = new MediaFileInfo();
                video_column_index = videocursor
                        .getColumnIndexOrThrow(MediaStore.Video.Media.DISPLAY_NAME);
                videocursor.moveToPosition(i);
                name = videocursor.getString(video_column_index);

                mediaFileInfo.setFileName(name);

                int column_index = videocursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                videocursor.moveToPosition(i);
                String filepath = videocursor.getString(column_index);

                mediaFileInfo.setFilePath(filepath);
                mediaFileInfo.setFileType(type);
                mediaList.add(mediaFileInfo);
                // id += " Size(KB):" +
                // videocursor.getString(video_column_index);


            }
            videocursor.close();

        } catch (Exception e) {
            e.printStackTrace();
        }
} 

For Listing All Audio

private void parseAllAudio() {
        try {
            String TAG = "Audio";
            Cursor cur = getContentResolver().query(
                    MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, null, null, null,
                    null);

            if (cur == null) {
                // Query failed...
                Log.e(TAG, "Failed to retrieve music: cursor is null :-(");

            }
            else if (!cur.moveToFirst()) {
                // Nothing to query. There is no music on the device. How boring.
                Log.e(TAG, "Failed to move cursor to first row (no query results).");

            }else {
                Log.i(TAG, "Listing...");
                // retrieve the indices of the columns where the ID, title, etc. of the song are

                // add each song to mItems
                do {
                    int artistColumn = cur.getColumnIndex(MediaStore.Audio.Media.ARTIST);
                    int titleColumn = cur.getColumnIndex(MediaStore.Audio.Media.TITLE);
                    int albumColumn = cur.getColumnIndex(MediaStore.Audio.Media.ALBUM);
                    int durationColumn = cur.getColumnIndex(MediaStore.Audio.Media.DURATION);
                    int idColumn = cur.getColumnIndex(MediaStore.Audio.Media._ID);
                    int filePathIndex = cur.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                    Log.i(TAG, "Title column index: " + String.valueOf(titleColumn));
                    Log.i(TAG, "ID column index: " + String.valueOf(titleColumn));

                    Log.i("Final ", "ID: " + cur.getString(idColumn) + " Title: " + cur.getString(titleColumn) + "Path: " + cur.getString(filePathIndex));
                    MediaFileInfo audio = new MediaFileInfo();
                    audio.setFileName(cur.getString(titleColumn));
                    audio.setFilePath(cur.getString(filePathIndex));
                    audio.setFileType(type);
                    mediaList.add(audio);

                } while (cur.moveToNext());
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
} 

Downalod Complete Code: MediaListing


Hope this will help some one.
Enjoy coding..................  ;)

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Android Turn on Bluetooth Tethering | Android enable tethering

Hello Friends ,
          Today, I am sharing my another blog on Bluetooth Tethering.  In this tutorial
we can programmatically turn on and off  Bluetooth Tethering.

 

Here the code:

1. BluetoothTethering.java

package com.solutions.developer.android.com.bluetoothtethering;

import android.annotation.SuppressLint;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothManager;
import android.bluetooth.BluetoothProfile;
import android.content.Context;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.CompoundButton;
import android.widget.Switch;

import java.lang.reflect.Constructor;
import java.lang.reflect.Method;


public class BluetoothTethering extends AppCompatActivity {

    BluetoothAdapter mBluetoothAdapter = null;
    Class classBluetoothPan = null;
    Constructor BTPanCtor = null;
    Object BTSrvInstance = null;
    Class noparams[] = {};
    Method mIsBTTetheringOn;
    public static Switch toggle ;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_bluetooth_tethering);

        toggle = (Switch) findViewById(R.id.wifi_switch);
        toggle.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                try {
                    mBluetoothAdapter = getBTAdapter();
                    mBluetoothAdapter.enable();
                    Thread.sleep(100);
                    toggleTethering();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        });
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_bluetooth_tethering, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    public void toggleTethering() {
        Context MyContext = getApplicationContext();
        mBluetoothAdapter = getBTAdapter();
        String sClassName = "android.bluetooth.BluetoothPan";
        try {
            classBluetoothPan = Class.forName("android.bluetooth.BluetoothPan");
            mIsBTTetheringOn = classBluetoothPan.getDeclaredMethod("isTetheringOn", noparams);
            BTPanCtor = classBluetoothPan.getDeclaredConstructor(Context.class, BluetoothProfile.ServiceListener.class);
            BTPanCtor.setAccessible(true);

            BTSrvInstance = BTPanCtor.newInstance(MyContext, new BTPanServiceListener(MyContext));
            Thread.sleep(250);

        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @SuppressLint("NewApi")
    private BluetoothAdapter getBTAdapter() {
        if (android.os.Build.VERSION.SDK_INT <= android.os.Build.VERSION_CODES.JELLY_BEAN_MR1)
            return BluetoothAdapter.getDefaultAdapter();
        else {
            BluetoothManager bm = (BluetoothManager) getSystemService(BLUETOOTH_SERVICE);
            return bm.getAdapter();
        }
    }

    public  static void changeToggleState(boolean state) {
        try{
            if(state){
                toggle.setChecked(BTPanServiceListener.state);
            }else {
                toggle.setChecked(BTPanServiceListener.state);
            }
        }catch (Exception e){
            e.printStackTrace();
        }
    }
}
 

2. BTPanServiceListener.java

package com.solutions.developer.android.com.bluetoothtethering;

import java.lang.reflect.InvocationTargetException;

import android.bluetooth.BluetoothProfile;
import android.content.Context;
import android.util.Log;
import android.widget.Toast;

public class BTPanServiceListener implements BluetoothProfile.ServiceListener {
    private final Context context;
    public static boolean state = false;

    public BTPanServiceListener(final Context context) {
        this.context = context;
    }

    @Override
    public void onServiceConnected(final int profile,
                                   final BluetoothProfile proxy) {
        //Some code must be here or the compiler will optimize away this callback.
        Log.i("MyApp", "BTPan proxy connected");
        try {
            boolean nowVal = ((Boolean) proxy.getClass().getMethod("isTetheringOn", new Class[0]).invoke(proxy, new Object[0])).booleanValue();
            if (nowVal) {
                proxy.getClass().getMethod("setBluetoothTethering", new Class[]{Boolean.TYPE}).invoke(proxy, new Object[]{Boolean.valueOf(false)});
                Toast.makeText(context, "Turning bluetooth tethering off", Toast.LENGTH_SHORT).show();
                state = false;
            } else {
                proxy.getClass().getMethod("setBluetoothTethering", new Class[]{Boolean.TYPE}).invoke(proxy, new Object[]{Boolean.valueOf(true)});
                Toast.makeText(context, "Turning bluetooth tethering on", Toast.LENGTH_SHORT).show();
                state = true;
            }
            BluetoothTethering.changeToggleState(state);
        } catch (IllegalAccessException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (NoSuchMethodException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    @Override
    public void onServiceDisconnected(final int profile) {
    }
} 

Download Complete Code : BluetoothTethering

Hope this will help some one.
Enjoy coding....... :)

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