Gallery with Folder Filter

Gallery with folder filter

You just need to implement MediaScannerConnectionClient in your activity and after that you have to give the exact path of one of the file inside that folder name here as SCAN_PATH and it will scan all the files containing in that folder and open it inside built in gallery. So just give the name of you folder and you will get all the files inside including video. If you want to open only images change FILE_TYPE="image/*"

public class SlideShow extends Activity implements MediaScannerConnectionClient {

        public String[] allFiles;
        private String SCAN_PATH ;
        private static final String FILE_TYPE = "*/*";
        private MediaScannerConnection conn;

        /** Called when the activity is first created. */
        @Override
        public void onCreate(Bundle savedInstanceState)
        {
            super.onCreate(savedInstanceState);

            setContentView(R.layout.main);

            File folder = new File("/sdcard/yourfoldername/");
            allFiles = folder.list();

            SCAN_PATH=Environment.getExternalStorageDirectory().toString()+"/yourfoldername/"+allFiles[0];

            Button scanBtn = (Button) findViewById(R.id.scanBtn);
            scanBtn.setOnClickListener(new OnClickListener()
            {
                public void onClick(View v)
                {
                    startScan();
                }
            });
        }

        private void startScan()
        {
            if(conn!=null)
            {
                conn.disconnect();
            }

            conn = new MediaScannerConnection(this, this);
            conn.connect();
        }

        public void onMediaScannerConnected()
        {
            conn.scanFile(SCAN_PATH, FILE_TYPE);    
        }

        public void onScanCompleted(String path, Uri uri)
        {
            try
            {
                if (uri != null) 
                {
                    Intent intent = new Intent(Intent.ACTION_VIEW);
                    intent.setData(uri);
                    startActivity(intent);
                }
            }
            finally 
            {
                conn.disconnect();
                conn = null;
            }
        }
    }

Built-in gallery in specific folder

You just need to implement MediaScannerConnectionClient in your activity and after that you have to give the exact path of one of the file inside that folder name here as SCAN_PATH and it will scan all the files containing in that folder and open it inside built in gallery. So just give the name of you folder and you will get all the files inside including video. If you want to open only images change FILE_TYPE="image/*"

public class sdActivity extends Activity implements MediaScannerConnectionClient{
    public String[] allFiles;
private String SCAN_PATH ;
private static final String FILE_TYPE = "*/*";

private MediaScannerConnection conn;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    File folder = new File("/sdcard/youfoldername/");
    allFiles = folder.list();
 //   uriAllFiles= new Uri[allFiles.length];
    for(int i=0;i<allFiles.length;i++)
    {
        Log.d("all file path"+i, allFiles[i]+allFiles.length);
    }
  //  Uri uri= Uri.fromFile(new File(Environment.getExternalStorageDirectory().toString()+"/yourfoldername/"+allFiles[0]));
    SCAN_PATH=Environment.getExternalStorageDirectory().toString()+"/yourfoldername/"+allFiles[0];
    Log.d("SCAN PATH", "Scan Path " + SCAN_PATH);
    Button scanBtn = (Button)findViewById(R.id.scanBtn);
    scanBtn.setOnClickListener(new OnClickListener(){
    @Override
    public void onClick(View v) {
        startScan();
    }});
    }
    private void startScan()
    {
    Log.d("Connected","success"+conn);
    if(conn!=null)
    {
    conn.disconnect();
    }
    conn = new MediaScannerConnection(this,this);
    conn.connect();
    }
@Override
public void onMediaScannerConnected() {
    Log.d("onMediaScannerConnected","success"+conn);
    conn.scanFile(SCAN_PATH, FILE_TYPE);    
}
@Override
public void onScanCompleted(String path, Uri uri) {
    try {
        Log.d("onScanCompleted",uri + "success"+conn);
        if (uri != null) 
        {
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setData(uri);
        startActivity(intent);
        }
        } finally 
        {
        conn.disconnect();
        conn = null;
        }
       }
}

How to open gallery to show images in a specific directory

You just need to implement MediaScannerConnectionClient in your activity and after that you have to give the exact path of one of the file inside that folder name here as SCAN_PATH and it will scan all the files containing in that folder and open it inside built in gallery. So just give the name of you folder and you will get all the files inside including video. If you want to open only images change FILE_TYPE="images/*"

public class sdActivity extends Activity implements MediaScannerConnectionClient{
    public String[] allFiles;
private String SCAN_PATH ;
private static final String FILE_TYPE = "*/*";

private MediaScannerConnection conn;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    File folder = new File("/sdcard/youfoldername/");
    allFiles = folder.list();
 //   uriAllFiles= new Uri[allFiles.length];
    for(int i=0;i<allFiles.length;i++)
    {
        Log.d("all file path"+i, allFiles[i]+allFiles.length);
    }
  //  Uri uri= Uri.fromFile(new File(Environment.getExternalStorageDirectory().toString()+"/yourfoldername/"+allFiles[0]));
    SCAN_PATH=Environment.getExternalStorageDirectory().toString()+"/yourfoldername/"+allFiles[0];
    Log.d("SCAN PATH", "Scan Path " + SCAN_PATH);
    Button scanBtn = (Button)findViewById(R.id.scanBtn);
    scanBtn.setOnClickListener(new OnClickListener(){
    @Override
    public void onClick(View v) {
        startScan();
    }});
    }
    private void startScan()
    {
    Log.d("Connected","success"+conn);
    if(conn!=null)
    {
    conn.disconnect();
    }
    conn = new MediaScannerConnection(this,this);
    conn.connect();
    }
@Override
public void onMediaScannerConnected() {
    Log.d("onMediaScannerConnected","success"+conn);
    conn.scanFile(SCAN_PATH, FILE_TYPE);    
}
@Override
public void onScanCompleted(String path, Uri uri) {
    try {
        Log.d("onScanCompleted",uri + "success"+conn);
        if (uri != null) 
        {
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setData(uri);
        startActivity(intent);
        }
        } finally 
        {
        conn.disconnect();
        conn = null;
        }
       }
}

i already answered it on this link also Built-in gallery in specific folder.

Open Android galley on specific folder

You can try following code.

public void openFolder()
{
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
Uri uri = Uri.parse(Environment.getExternalStorageDirectory().getPath()
    + "/myFolder/");

intent.setDataAndType(uri, "*/*");
startActivity(Intent.createChooser(intent, "Open folder"));
}

Permisson in manifest.xml

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

Also refer this.

Android open gallery from folder

Try This

Intent i=new Intent();
i.setAction(Intent.ACTION_VIEW);
i.setDataAndType(Uri.fromFile(new File(path)), "image/*");  
startActivity(i);

See these Links

How can I use Intent.ACTION_VIEW to view the contents of a folder?

Android ACTION_VIEW Multiple Images

Java and Android: How to open several files with an Intent?

if this solves your problem. Also check

https://www.google.co.in/?gfe_rd=cr&ei=c5n9U6ruE7DO8gfXz4G4BA&gws_rd=ssl#q=view+like+gallery

also check Gallery widget

How to read Image from a specific folder on Android 10 using MediaStore

I did a projection on RELATIVE_PATH constant instead of BUCKET_DISPLAY_NAME (which just gives you the name of last folder) and a selection of LIKE DCIM/Test% using the below code to filter out the results from DCIM/Test folder.

val projection = arrayOf(_ID, DATE_ADDED, BUCKET_DISPLAY_NAME, RELATIVE_PATH)
val selection = "${MediaStore.MediaColumns.RELATIVE_PATH} LIKE ?"
val selectionArgs = arrayOf("DCIM/Test%") // Test was my folder name
val sortOrder = "$DATE_ADDED DESC"

app.contentResolver.query(
    EXTERNAL_CONTENT_URI,
    projection,
    selection,
    selectionArgs,
    sortOrder
)?.use {
    val id = it.getColumnIndexOrThrow(_ID)
    val bucket = it.getColumnIndexOrThrow(BUCKET_DISPLAY_NAME)
    val date = it.getColumnIndexOrThrow(DATE_ADDED)
    val path = it.getColumnIndexOrThrow(RELATIVE_PATH)
    while (it.moveToNext()) {
        // Iterate the cursor
    }
}

The only disadvantage of this approach is that RELATIVE_PATH is available for API level 29 (Q) and above.

Edit: Changed the selection args from %DCIM/Test% to DCIM/Test% as pointed out by Alejandro Gomez. The prior will match to any DCIM folder (including the system default) eg. My/DCIM/Test/Sample.jpg will also be in the output alongside DCIM/Test/Sample.jpg.

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