Grid View From Local Storage

custome_grid_view.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    style="@style/AppTheme"
    android:layout_width="fill_parent"
    android:padding="5dp"
    android:layout_height="fill_parent"
    android:gravity="center_horizontal">

    <ImageView
        android:background="#FFFFFFFF"
        android:scaleType="fitXY"
        android:layout_width="200dp"
        android:layout_height="200dp"
        android:id="@+id/imageViewGrid" />

</LinearLayout>

FrameChooserActivity.xml

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/main_bg"
    tools:context="pk.camict.jovial.eidmubarakprofile.FrameChosserActivity"
    android:gravity="center">

<GridView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/grid_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:numColumns="auto_fit"
    android:stretchMode="columnWidth"
    android:horizontalSpacing="5dp"
    android:verticalSpacing="5dp"
    android:gravity="center">

</GridView>

    </RelativeLayout>

FrameChooserActvity.java

package pk.camict.jovial.eidmubarakprofile;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.view.KeyEvent;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.Toast;

import java.io.File;

public class FrameChosserActivity extends Activity {

    GridViewAdapter adapter;

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

        GridView gridview = findViewById(R.id.grid_view);
        adapter = new GridViewAdapter(this);
        gridview.setAdapter(adapter);

        String ExternalStorageDirectoryPath = "data/data/" + this.getPackageName();

        String targetPath = ExternalStorageDirectoryPath  + "/Frames";

        //Toast.makeText(getApplicationContext(), targetPath, Toast.LENGTH_LONG).show();
        File targetDirector = new File(targetPath);

        File[] files = targetDirector.listFiles();
        for (File file : files){
            adapter.add(file.getAbsolutePath());
        }

        gridview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                String imgPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/FilterImages/IMAGE-TEMP.png";
                String filterPath = adapter.getItemPath(position);

                Toast.makeText(FrameChosserActivity.this, "Frame Selected.\nPlease Wait...", Toast.LENGTH_SHORT).show();
                //Toast.makeText(FrameChosserActivity.this, "Item: " + adapter.getItemPath(position), Toast.LENGTH_SHORT).show();
                Intent intent=new Intent(FrameChosserActivity.this, MainActivity.class);
                Bundle bundle = new Bundle();
                bundle.putString("IMG_PATH",imgPath);
                bundle.putString("FILTER_PATH",filterPath);
                intent.putExtras(bundle);
                startActivity(intent);
                finish();
            }
        });
    }

    private int pressedTime = 1;

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (event.getKeyCode() == KeyEvent.KEYCODE_BACK) {
            switch (event.getAction()) {
                case KeyEvent.ACTION_DOWN:
                    if (pressedTime > 1) {
                        Intent i = new Intent(FrameChosserActivity.this, PhotoChosserActivity.class);
                        startActivity(i);
                        finish();
                    } else {
                        Toast.makeText(getApplicationContext(), "Save Your Image Before Exit",
                                Toast.LENGTH_SHORT).show();
                        pressedTime++;
                    }
                    return true;
            }
        }
        return false;
    }
}

gridAdapter.java

package pk.camict.jovial.eidmubarakprofile;

/**
 * Created by AliTamoor on 8/13/2017.
 */

import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.util.ArrayList;

public class GridViewAdapter extends BaseAdapter {
    private Context mContext;
    ArrayList<String> itemList = new ArrayList<String>();

    public GridViewAdapter(Context c) {
        this.mContext = c;
    }

    void add(String path){
        itemList.add(path);
    }

    @Override
    public int getCount() {
        return itemList.size();
    }

    @Override
    public Object getItem(int arg0) {
        return itemList.get(arg0);
    }

    public String getItemPath(int pos){
        return itemList.get(pos);
    }

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View grid;
        ImageView imageView = null;
        LayoutInflater inflater= (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        //if(convertView == null){
            grid = new View(mContext);
            grid = inflater.inflate(R.layout.custom_gridview,null);
            imageView = (ImageView)grid.findViewById(R.id.imageViewGrid);
            //imageView.setScaleType(ImageView.ScaleType.FIT_XY);
        //}
        //else {
            //grid = (View)convertView;
        //}
//        ImageView imageView;
//        if (convertView == null) {  // if it's not recycled, initialize some attributes
//            imageView = new ImageView(mContext);
//            imageView.setLayoutParams(new GridView.LayoutParams(220, 220));
//            imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
//            imageView.setPadding(8, 8, 8, 8);
//        } else {
//            imageView = (ImageView) convertView;
//        }

        Bitmap bm = decodeSampledBitmapFromUri(itemList.get(position), 200, 200);
        imageView.setImageBitmap(bm);
        return grid;
    }

    public Bitmap decodeSampledBitmapFromUri(String path, int reqWidth, int reqHeight) {

        Bitmap bm = null;
        // First decode with inJustDecodeBounds=true to check dimensions
        final BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeFile(path, options);

        // Calculate inSampleSize
        options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);

        // Decode bitmap with inSampleSize set
        options.inJustDecodeBounds = false;
        bm = BitmapFactory.decodeFile(path, options);

        return bm;
    }

    public int calculateInSampleSize(

            BitmapFactory.Options options, int reqWidth, int reqHeight) {
        // Raw height and width of image
        final int height = options.outHeight;
        final int width = options.outWidth;
        int inSampleSize = 1;

        if (height > reqHeight || width > reqWidth) {
            if (width > height) {
                inSampleSize = Math.round((float)height / (float)reqHeight);
            } else {
                inSampleSize = Math.round((float)width / (float)reqWidth);
            }
        }

        return inSampleSize;
    }
}