Show Image View from file path?

Question

I need to show an image by using the file name only, not from the resource id.

ImageView imgView = new ImageView(this);
imgView.setBackgroundResource(R.drawa         


        

Answer 1

All the answers are outdated. It is best to use picasso for such purposes. It has a lot of features including background image processing.

Did I mention it is super easy to use:

Picasso.with(context).load(new File(...)).into(imageView);

Answer 2

From the official site: http://developer.android.com/training/displaying-bitmaps/load-bitmap.html

ImageView image = (ImageView) findViewById(R.id.imagePreview);           
try {
    image.setImageBitmap(decodeSampledBitmap(picFilename));
} catch (Exception e) {
    e.printStackTrace();
}

Here the methods:

    private 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) {

            final int halfHeight = height / 2;
            final int halfWidth = width / 2;

            // Calculate the largest inSampleSize value that is a power of 2 and keeps both
            // height and width larger than the requested height and width.
            while ((halfHeight / inSampleSize) > reqHeight
                    && (halfWidth / inSampleSize) > reqWidth) {
                inSampleSize *= 2;
            }
        }

        return inSampleSize;
    }

    private Bitmap decodeSampledBitmap(String pathName,
            int reqWidth, int reqHeight) {

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

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

        // Decode bitmap with inSampleSize set
        options.inJustDecodeBounds = false;
        return BitmapFactory.decodeFile(pathName, options);
    }

//I added this to have a good approximation of the screen size: 
    private Bitmap decodeSampledBitmap(String pathName) {
        Display display = getWindowManager().getDefaultDisplay();
        Point size = new Point();
        display.getSize(size);
        int width = size.x;
        int height = size.y;
        return decodeSampledBitmap(pathName, width, height);
    }   

Answer 3

How To Show Images From Folder path in Android

Very First: Make Sure You Have Add Permissions into Mainfest file:

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

:Make a Class MyGallery

public class MyGallery extends Activity {


    private GridView gridView;
    private String _location;

    private String newFolder = "/IslamicGif/";
    private String extStorageDirectory = Environment.getExternalStorageDirectory().toString();
    private AdView mAdView;
    private ArrayList<Bitmap> photo = new ArrayList<Bitmap>();
    public static String[] imageFileList;
    TextView gallerytxt;

    public static ImageAdapter imageAdapter;

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.mygallery);
        /*if (MenuClass.mInterstitialAd.isLoaded()) {
            MenuClass.mInterstitialAd.show();
        }*/

        gallerytxt = (TextView) findViewById(R.id.gallerytxt);
        /*gallerytxt.setTextSize(20);
        int[] color = {Color.YELLOW,Color.WHITE};
        float[] position = {0, 1};
        Shader.TileMode tile_mode0= Shader.TileMode.REPEAT; // or TileMode.REPEAT;
        LinearGradient lin_grad0 = new LinearGradient(0, 0, 0, 200,color,position, tile_mode0);
        Shader shader_gradient0 = lin_grad0;
        gallerytxt.getPaint().setShader(shader_gradient0);*/
        ImageButton btn_back = (ImageButton) findViewById(R.id.btn_back);
        btn_back.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                MyGallery.this.finish();
            }
        });


        mAdView = (AdView) findViewById(R.id.adView);
        AdRequest adRequest = new AdRequest.Builder()
                .build();
        mAdView.loadAd(adRequest);
        gridView = (GridView) findViewById(R.id.gridView);

        new MyGalleryAsy().execute();

        gridView.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int pos, long arg3) {
                // TODO Auto-generated method stub
                Intent intent = new Intent(MyGallery.this, ImageDetail.class);
                intent.putExtra("ImgUrl", imageFileList[pos]);

                //Toast.makeText(MyGallery.this,"image detail"+pos,Toast.LENGTH_LONG).show();
                startActivity(intent);
            }
        });


    }

    protected void onStart() {
        super.onStart();
        if (ImageDetail.deleted) {
            photo = new ArrayList<Bitmap>();
            new MyGalleryAsy().execute();
            ImageDetail.deleted = false;
        }

    }

    public class MyGalleryAsy extends AsyncTask<Void, Void, Void> {
        private ProgressDialog dialog;
        Bitmap mBitmap;

        @Override
        protected void onPreExecute() {
            dialog = ProgressDialog.show(MyGallery.this, "", "Loading ...", true);
            dialog.show();
        }

        @Override
        protected Void doInBackground(Void... arg0) {

            readImage();
            return null;
        }

        @Override
        protected void onPostExecute(Void result) {

            dialog.dismiss();
            DisplayMetrics displayMatrics = new DisplayMetrics();
            getWindowManager().getDefaultDisplay().getMetrics(displayMatrics);
            int screenWidth = displayMatrics.widthPixels / 3;

            if (photo.size() > 0) {
                imageAdapter = new ImageAdapter(MyGallery.this, screenWidth);
                gridView.setAdapter(imageAdapter);
            }

        }

    }


    private void readImage() {
        // TODO Auto-generated method stub


        try {
            if (isSdPresent()) {
                _location = extStorageDirectory + newFolder;
            } else
                _location = getFilesDir() + newFolder;
            File file1 = new File(_location);

            if (file1.isDirectory()) { // sdCard == true
                imageFileList = file1.list();
                if (imageFileList != null) {
                    for (int i = 0; i < imageFileList.length; i++) {
                        try {
                            photo.add(BitmapFactory.decodeFile(_location + imageFileList[i].trim()));
                        } catch (Exception e) {
                            // TODO: handle exception
                            //Toast.makeText(getApplicationContext(), e.toString(),Toast.LENGTH_LONG).show();
                        }
                    }
                }
            }
        } catch (Exception e) {
            // TODO: handle exception
        }
    }

    public static boolean isSdPresent() {
        return Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
    }

    public class ImageAdapter extends BaseAdapter {

        private Context context;
        private LayoutInflater layoutInflater;
        private int width;
        private int mGalleryItemBackground;

        public ImageAdapter(Context c) {
            context = c;

        }

        public ImageAdapter(Context c, int width) {
            context = c;
            this.width = width;
        }

        public int getCount() {
            return photo.size();
        }

        public Object getItem(int position) {
            return null;
        }

        public long getItemId(int position) {
            return 0;
        }

        public View getView(int position, View convertView, ViewGroup parent) {
            View v = convertView;
            layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            v = layoutInflater.inflate(R.layout.galleryadapter, null);

            RelativeLayout layout = (RelativeLayout) v.findViewById(R.id.galleryLayout);

            ImageView imageView = new ImageView(context);
            layout.addView(imageView, new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, width));
            imageView.setScaleType(ImageView.ScaleType.FIT_XY);
            layout.setLayoutParams(new GridView.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, width));
            imageView.setImageBitmap(photo.get(position));

            return v;

        }

        public void updateItemList(ArrayList<Bitmap> newItemList) {
            photo = newItemList;
            notifyDataSetChanged();
        }
    }


}

Now create its Xml Class

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/bg"
android:orientation="vertical">

<RelativeLayout
    android:id="@+id/relativeLayout"
    android:layout_width="match_parent"
    android:layout_height="56dp"
    android:background="@color/colorPrimary"
    android:minHeight="?attr/actionBarSize">

    <TextView
        android:id="@+id/gallerytxt"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:layout_gravity="center"
        android:fontFamily="@string/font_fontFamily_medium"
        android:text="My Gallery"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:textColor="@android:color/black"
        android:textStyle="bold" />

    <ImageButton
        android:id="@+id/btn_back"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_centerVertical="true"
        android:layout_marginLeft="12dp"
        android:background="@drawable/ic_arrow_back_black_24dp" />
</RelativeLayout>


<com.google.android.gms.ads.AdView
    android:id="@+id/adView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:layout_gravity="center|bottom"
    android:visibility="gone"
    ads:adSize="BANNER"
    ads:adUnitId="@string/banner_id" />

<GridView
    android:id="@+id/gridView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@+id/adView"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:layout_below="@+id/relativeLayout"
    android:horizontalSpacing="5dp"
    android:numColumns="2"
    android:smoothScrollbar="true"
    android:verticalSpacing="5dp"></GridView>

## Also Make Adapter galleryadapter.xml ##

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:id="@+id/galleryLayout"
android:padding="2dp">

[![enter image description here][1]][1]

To see the Image in Detail create a new Class ImageDetail:##

 public class ImageDetail extends Activity implements OnClickListener {
    public static InterstitialAd mInterstitialAd;
    private ImageView mainImageView;
    private LinearLayout menuTop;
    private TableLayout menuBottom;
    private Boolean onOff = true;
    private ImageView delButton, mailButton, shareButton;

    private String imgUrl = null;
    private AdView mAdView;
    TextView titletxt;
    private String newFolder = "/IslamicGif/";
    private String extStorageDirectory = Environment.getExternalStorageDirectory().toString();
    public static boolean deleted = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.image_detail);

        mAdView = (AdView) findViewById(R.id.adView);
        AdRequest adRequest = new AdRequest.Builder()
                .build();
        mAdView.loadAd(adRequest);
        mAdView.setAdListener(new AdListener() {
            @Override
            public void onAdLoaded() {
                mAdView.setVisibility(View.VISIBLE);
            }
        });
        mainImageView = (ImageView) findViewById(R.id.mainImageView);
        menuTop = (LinearLayout) findViewById(R.id.menuTop);
        menuBottom = (TableLayout) findViewById(R.id.menuBottom);
        titletxt = (TextView) findViewById(R.id.titletxt);
        titletxt.setTextSize(22);
        mInterstitialAd = new InterstitialAd(this);
        mInterstitialAd.setAdUnitId(getString(R.string.interstial_id));

        mInterstitialAd.setAdListener(new AdListener() {
            @Override
            public void onAdClosed() {
                requestNewInterstitial();

            }
        });
        requestNewInterstitial();
        delButton = (ImageView) findViewById(R.id.delButton);
        mailButton = (ImageView) findViewById(R.id.mailButton);
        shareButton = (ImageView) findViewById(R.id.shareButton);

        Bundle exBundle = getIntent().getExtras();
        if (exBundle != null) {
            imgUrl = exBundle.getString("ImgUrl");
        }
        if (isSdPresent()) {
            imgUrl = extStorageDirectory + newFolder + imgUrl;
        } else
            imgUrl = getFilesDir() + newFolder + imgUrl;

        if (imgUrl != null) {
            GlideDrawableImageViewTarget imageViewTarget = new GlideDrawableImageViewTarget(mainImageView);
            Glide.with(this).load(imgUrl).into(imageViewTarget);

        }


        delButton.setOnClickListener(this);
        mailButton.setOnClickListener(this);
        shareButton.setOnClickListener(this);


    }

    public static boolean isSdPresent() {
        return Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
    }


    @Override
    public void onClick(View arg0) {
        // TODO Auto-generated method stub
        switch (arg0.getId()) {
            case R.id.shareButton:
                Image_Link();
                break;
            case R.id.delButton:
                deleted();
                break;
            case R.id.mailButton:
                sendemail();
                break;
            default:
                break;
        }
    }

    private void sendemail() {

        try {

            File photo = new File(imgUrl);
            Uri imageuri = Uri.fromFile(photo);


            String url = Constant.AppUrl;

            SpannableStringBuilder builder = new SpannableStringBuilder();
            builder.append("Face Placer App Available here..Play Link");
            int start = builder.length();
            builder.append(url);
            int end = builder.length();

            builder.setSpan(new URLSpan(url), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

            Intent emailIntent2 = new Intent(Intent.ACTION_SEND);
            String[] recipients2 = new String[]{"mymail@email.com", "",};
            emailIntent2.putExtra(Intent.EXTRA_EMAIL, recipients2);
            emailIntent2.putExtra(Intent.EXTRA_SUBJECT, "Sample mail");
            emailIntent2.putExtra(Intent.EXTRA_STREAM, imageuri);
            emailIntent2.putExtra(Intent.EXTRA_TEXT, builder);
            emailIntent2.setType("text/html");
            emailIntent2.setType("image/JPEG");
            startActivity(Intent.createChooser(emailIntent2, "Send mail client :"));

        } catch (Exception e) {
            // TODO: handle exception

            Toast.makeText(getApplicationContext(), e.toString(), Toast.LENGTH_LONG).show();
        }
    }


    private void Image_Link() {

        try {

            File photo = new File(imgUrl);
            Uri imageuri = Uri.fromFile(photo);


            String url = Constant.AppUrl;

            SpannableStringBuilder builder = new SpannableStringBuilder();
            builder.append("Face Placer App Available here..Play Link");
            int start = builder.length();
            builder.append(url);
            int end = builder.length();

            builder.setSpan(new URLSpan(url), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

            Intent emailIntent2 = new Intent(Intent.ACTION_SEND);
            String[] recipients2 = new String[]{"mymail@email.com", "",};
            emailIntent2.putExtra(Intent.EXTRA_EMAIL, recipients2);
            emailIntent2.putExtra(Intent.EXTRA_SUBJECT, "Sample mail");
            emailIntent2.putExtra(Intent.EXTRA_STREAM, imageuri);
            emailIntent2.putExtra(Intent.EXTRA_TEXT, builder);
            emailIntent2.setType("text/html");
            emailIntent2.putExtra(Intent.EXTRA_TEXT, "Face Placer App Available here..Play Link " + url);
            emailIntent2.setType("image/JPEG");
            startActivity(Intent.createChooser(emailIntent2, "Send mail client :"));

        } catch (Exception e) {
            // TODO: handle exception

            Toast.makeText(getApplicationContext(), e.toString(), Toast.LENGTH_LONG).show();
        }
    }


    private void deleted() {
        if (mInterstitialAd.isLoaded()) {
            mInterstitialAd.show();
        }

        AlertDialog.Builder builder = new AlertDialog.Builder(ImageDetail.this);
        builder.setTitle(getString(R.string.removeoption));
        builder.setMessage(getString(R.string.deleteimage));
        builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int id) {
                // User clicked OK button
                dialog.cancel();
                File fileDel = new File(imgUrl);
                boolean isCheck1 = fileDel.delete();

                if (isCheck1) {
                    deleted = true;
                    finish();
                    MyGallery.imageAdapter.notifyDataSetChanged();

                } else {
                    Toast.makeText(getApplicationContext(), "error", Toast.LENGTH_LONG).show();
                }
            }
        });

        builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int id) {
                // User clicked OK button
                dialog.cancel();

            }
        });
        Dialog dialog = builder.create();
        dialog.show();


    }


    private boolean isNetworkConnected() {
        ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo ni = cm.getActiveNetworkInfo();
        if (ni == null) {
            // There are no active networks.
            return false;
        } else
            return true;
    }

    private void requestNewInterstitial() {
        AdRequest adRequest = new AdRequest.Builder()
                .addTestDevice("SEE_YOUR_LOGCAT_TO_GET_YOUR_DEVICE_ID")
                .build();

        mInterstitialAd.loadAd(adRequest);
    }

}

Create its xml image_detail.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/bg"
android:orientation="vertical">

<ImageView
    android:id="@+id/mainImageView"
    android:layout_width="match_parent"
    android:layout_height="fill_parent"
    android:layout_alignParentBottom="true"
    android:contentDescription="@string/app_name"
    android:focusable="true"
    android:focusableInTouchMode="true" />

<LinearLayout
    android:id="@+id/adlayout"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerHorizontal="true"
    android:orientation="horizontal"
    android:visibility="gone"></LinearLayout>

<LinearLayout
    android:id="@+id/menuTop"
    android:layout_width="fill_parent"
    android:layout_height="56dp"
    android:layout_alignWithParentIfMissing="true"
    android:layout_below="@+id/adlayout"
    android:background="@color/colorPrimary"
    android:orientation="vertical"
    android:padding="10.0dip"
    android:visibility="visible">

    <TextView
        android:id="@+id/titletxt"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:text="Islamic Gifs"
        android:textColor="#000000"
        android:textSize="22sp"
        android:textStyle="bold" />
</LinearLayout>

<TableLayout
    android:id="@+id/menuBottom"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:background="@color/colorPrimary"
    android:padding="10.0dip"
    android:stretchColumns="*"
    android:visibility="visible">

    <TableRow>

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal">

            <ImageView
                android:id="@+id/mailButton"
                android:layout_width="52dp"
                android:layout_height="52dp"
                android:background="@drawable/selector_shareimage"
                android:contentDescription="@string/app_name" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal">

            <ImageView
                android:id="@+id/shareButton"
                android:layout_width="52dp"
                android:layout_height="52dp"
                android:background="@drawable/selector_shareimage_small"
                android:contentDescription="@string/app_name" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal">

            <ImageView
                android:id="@+id/delButton"
                android:layout_width="52dp"
                android:layout_height="52dp"
                android:background="@drawable/selector_delete"
                android:contentDescription="@string/app_name" />
        </LinearLayout>
    </TableRow>
</TableLayout>

<com.google.android.gms.ads.AdView
    android:id="@+id/adView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/menuTop"
    android:layout_centerHorizontal="true"
    android:visibility="gone"
    ads:adSize="BANNER"
    ads:adUnitId="@string/banner_id"></com.google.android.gms.ads.AdView>

Add your own Drawable to Selector class,and create it res>drawable>selector_shareimage.xml

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

<item android:drawable="@drawable/result_bt_mail" android:state_enabled="true" android:state_pressed="true"/>
<item android:drawable="@drawable/result_bt_mail" android:state_enabled="true" android:state_focused="true"/>
<item android:drawable="@drawable/result_bt_mail" android:state_enabled="true" android:state_selected="true"/>
<item android:drawable="@drawable/result_bt_mail_s"/>

Dont forget to add in application tag for sdk version 29 and 30 to add this line

android:requestLegacyExternalStorage="true"

 <application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:requestLegacyExternalStorage="true"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">

Answer 4

I think you can use this

Bitmap bmImg = BitmapFactory.decodeFile("path of your img1");
imageView.setImageBitmap(bmImg);

Answer 5

You can also use:

    File imgFile = new  File(“filepath”);
    if(imgFile.exists())
    {
        ImageView myImage = new ImageView(this);
        myImage.setImageURI(Uri.fromFile(imgFile));

    }

This does the bitmap decoding implicit for you.

Answer 6

String path = Environment.getExternalStorageDirectory()+ "/Images/test.jpg";

File imgFile = new File(path);
if(imgFile.exists())
{
   Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
   ImageView imageView=(ImageView)findViewById(R.id.imageView);
  imageView.setImageBitmap(myBitmap);
}