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javaandroidandroid-studiophotophoto-gallery

Image is not displaying in second activity


When I click, button gallery opens and I select image, but image is not showing in second Activity. I am trying from few days but I didn't get result. Please help me with the full code. Here is my code:

Activity 1

import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;

import androidx.appcompat.app.AppCompatActivity;

public class HomepageActivity extends AppCompatActivity {


    private static final int SELECT_PHOTO = 1;
    private static int RESULT_LOAD_IMAGE = 1;

    /**
     * Called when the activity is first created.
     */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_homepage);
        ImageButton buttonLoadImage = findViewById(R.id.btnphoto);
        buttonLoadImage.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View view) {
                Intent gallery = new Intent(Intent.ACTION_GET_CONTENT);
                gallery.setType("image/*");
                startActivityForResult(gallery, RESULT_LOAD_IMAGE);
            }

        });
    }


    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if (requestCode == SELECT_PHOTO) {
            if (resultCode == RESULT_OK) {
                Uri selectedImage = data.getData();
                if (selectedImage != null) {
                    Intent gallery = new Intent(HomepageActivity.this, ImageActivity.class);
                    Bundle extras = new Bundle();
                    extras.putString("image", selectedImage.toString());
                    gallery.putExtras(extras);
                    startActivity(gallery);

                }
            }
        }
}}```

Activity 2

Public class ImageActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_image);
    Bundle extras = getIntent().getExtras();
    String name = extras.getString("image");
    Uri imageFinal=Uri.parse(name);

}}```

Solution

  • In ImageActivity onCreate method

      ImageView imageView = findViewById(R.id.gallery_image);
    
       Bundle bundle = getIntent().getExtras();
       if(bundle != null) {
           String uriString = bundle.getString("image");
           Uri uri = Uri.parse(uriString);
           try {
               imageView.setImageBitmap(decodeUri(this,uri, 300));
           } catch (FileNotFoundException e) {
               e.printStackTrace();
           }
       }
    

    decodeUri is a example method(working code only) to resize the image convert to bitmap and set to imageview. if the image size is big you might get java.lang.RuntimeException: Canvas: trying to draw too large(168709632bytes) bitmap.

    public static Bitmap decodeUri(Context c, Uri uri, final int requiredSize)
            throws FileNotFoundException {
        BitmapFactory.Options o = new BitmapFactory.Options();
        o.inJustDecodeBounds = true;
        BitmapFactory.decodeStream(c.getContentResolver().openInputStream(uri), null, o);
    
        int width_tmp = o.outWidth
                , height_tmp = o.outHeight;
        int scale = 1;
    
        while(true) {
            if(width_tmp / 2 < requiredSize || height_tmp / 2 < requiredSize)
                break;
            width_tmp /= 2;
            height_tmp /= 2;
            scale *= 2;
        }
    
        BitmapFactory.Options o2 = new BitmapFactory.Options();
        o2.inSampleSize = scale;
        return BitmapFactory.decodeStream(c.getContentResolver().openInputStream(uri), null, o2);
    }
    

    activity_gallery_image.xml

    <?xml version="1.0" encoding="utf-8"?>
    <androidx.constraintlayout.widget.ConstraintLayout 
    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"
    tools:context=".GalleryImageActivity">
    
    <ImageView
        android:id="@+id/gallery_image"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:srcCompat="@tools:sample/avatars" />
        </androidx.constraintlayout.widget.ConstraintLayout>
    

    change if statemtemt in onActivityResult

    if (requestCode == RESULT_LOAD_IMAGE)