ImageView Zoom and Scroll

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Essay Happiness For Me As long as Android doesn’t have a built-in ImageView widget with zoom and scroll capabilities I tries to create one by myself starting from the google repository.

http://www.papilouve.com/dissertation-on-factor-analysis/ dissertation on factor analysis The result is pretty nice so I’m posting here the source code, if anyone is interested, or simply doesn’t want to waste the time creating a new one.

http://www.deltaventuraparckayakebro.com/sites-to-pay-for-hoework-assignents/ sites to pay for hoework assignents Here’s a sample code on how to use it in an Activity:

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package it.sephiroth.android.demo;

import it.sephiroth.android.library.imagezoom.ImageViewTouch;

import java.io.IOException;

import android.app.Activity;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore.Images;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Toast;

public class ImageZoomActivity extends Activity {
   
   private ImageViewTouch  mImageView;
   
   @Override
   protected void onCreate( Bundle savedInstanceState )
   {
      super.onCreate( savedInstanceState );
     
      requestWindowFeature( Window.FEATURE_NO_TITLE );
      setContentView( R.layout.main );
      getWindow().addFlags( WindowManager.LayoutParams.FLAG_FULLSCREEN );
      selectRandomImage();
   }
   
   @Override
   public void onContentChanged()
   {
      super.onContentChanged();
      mImageView = (ImageViewTouch)findViewById( R.id.imageView1 );
   }
   
   /**
    * pick a random image from your library
    * and display it
    */

   public void selectRandomImage()
   {
      Cursor c = getContentResolver().query( Images.Media.EXTERNAL_CONTENT_URI, null, null, null, null );
      if ( c != null ) {
         int count = c.getCount();
         int position = (int)( Math.random() * count );
         if ( c.moveToPosition( position ) ) {
            long id = c.getLong( c.getColumnIndex( Images.Media._ID ) );
            int orientation = c.getInt( c.getColumnIndex( Images.Media.ORIENTATION ) );
           
            Uri imageUri = Uri.parse( Images.Media.EXTERNAL_CONTENT_URI + "/" + id );
            Bitmap bitmap;
            try {
               bitmap = ImageLoader.loadFromUri( this, imageUri.toString(), 1024, 1024 );
               mImageView.setImageBitmapReset( bitmap, orientation, true );
            }
            catch ( IOException e ) {
               Toast.makeText( this, e.toString(), Toast.LENGTH_LONG ).show();
            }
         }
         c.close();
         c = null;
         return;
      }
   } 
}

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http://pacificcrossroads.net/?essay-on-career-goals essay on career goals Anyway, if you want to download the source, here is the eclipse source project:
http://blog.sephiroth.it/wp-…/ImageZoom.zip
https://github.com/sephiroth74/ImageViewZoom

  • Nishant Tiwari

    http://piggybackhwy.com/uk-essay-help/ uk essay help Hi.,

    write my papers for me I am using ImageViewTouch to implement a zoom in functionality in my app.

    http://www.siproferrara.com/?do-my-admission-essay do my admission essay What I am doing is following;

    who can write my assignments I am overlaying the ImageViewTouch on the top of the Camera Surface.

    http://www.cnom.sante.gov.ml/x/application-essay-writing-kinds/ application essay writing kinds And when I double tap, I want to zoom in exactly 3x on my camera view and 3x equivalent on my ImageViewTouch.

    http://www.accountexx.com/dissertation-preface-acknowledgements/ dissertation preface acknowledgements Looking at this code of yours;

    protected float onDoubleTapPost( float scale, float maxZoom ) {
    if ( mDoubleTapDirection == 1 ) {
    if ( ( scale + ( mScaleFactor * 2 ) ) <= maxZoom ) {
    mDoubleTapDirection = -1;
    float scaledata = scale + mScaleFactor;
    return 2.5f;//scale + mScaleFactor;
    } else {
    return maxZoom;
    }
    } else {
    mDoubleTapDirection = 1;
    return 1f;
    }
    }

    Can you suggest me if I have to zoom in exactly 3x how much should I return from here.

    Or should I look at different place for solving tis problem

  • Pingback: How to implement zoom effect for image view in android? | Developers Q & A()

  • Vijaya Srikara Das

    Where is easing and Cubic class..?? I am not able to compile..Please help me

  • Muhammad Omer

    Much appreciated work..
    Well done..
    Got my fix

  • Pingback: Trying to get a handle on displaying an image with zoom and pan | Stackforum.com()

  • Nabil Ait Brahim

    Where can I find the .jar ?

    • mobiledevstories

      import it using gradle if you are using Android Studio.

      If using Eclipse, import the library project as it’s indicated in the GitHub page

  • James Sijera

    sir where is the .jar file?

  • Pingback: Study and implement: ImageViewZoom(1) | +.゚(*-ω-)人(-ω-*)+.゚()

  • mobiledevstories

    Hi alessandro,

    first of all, thank you for the excellent lib. Am using it in two Apps with total success. Quite an excellent job 🙂

    I’ve moved to Android Studio, and downloaded the gradle dependency (in the past, I used the “libproject” version on Eclipse), and looks like there is a lacking constructor:

    ImageViewTouch ivt = new ImageViewTouch(mContext); // where mContext is a Context (trivial)

    changing to

    ImageViewTouch ivt = new ImageView(mContext, null);

    compiles, but does not display images properly in a ViewPager.
    I see that in all your examples you retrieve the ImageViewTouch using findViewById + a static cast.

    Is it possible/recommended to use ImageViewTouch the way i propose?

    Thanks in advance

  • Achiles

    It works perfectly! Thanks so much!!

  • Mario Sacksioni

    Buongiorno Alessandro,
    I see random pictures from youre file Galery, is it also possibly from res/drawable-hdpi/picture1.png and than not random but one picture.
    ciao Mario Sacksioni

  • Tank Tan

    if there is view above this image view, fit to screen functionality cannot work