display selected image from String[] imageurl in another activity

Question

I am having image slider which are containing images through image url.So,when I select any particular image that image on button click should go to another activity.I am getting image url but its not displaying image on another activity.So please help me.Thanks in advance.

I am having String[] imageUrl in Main

String[] imageUrl={"http://l.yimg.com/a/i/us/we/52/21.gif","https://devimages.apple.com.edgekey.net/contact/images/technical-icon.png","https://devimages.apple.com.edgekey.net/contact/images/technical-icon.png"};

On button click I am sending these url to another activity

Main.java

 String[] imageUrl={"http://l.yimg.com/a/i/us/we/52/21.gif","https://devimages.apple.com.edgekey.net/contact/images/technical-icon.png","https://devimages.apple.com.edgekey.net/contact/images/technical-icon.png"};
    
    
        Button btnNextScreen = (Button) findViewById(R.id.btnNextScreen);
        btnNextScreen.setOnClickListener(new View.OnClickListener() {           
                                        
                    public void onClick(View v) {
                        // TODO Auto-generated method stub
                        Intent intent = new Intent(Main.this, OpenImage.class);
                        intent.putExtra("some_key", imageUrl);
                        startActivity(intent);                  
                                            
                    }           
                });

In another activity I am getting these url but not a image

OpenImage.java

 public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.screen2);
            String[] data = getIntent().getExtras().getStringArray("some_key");
            for(String x:data) {
                Log.i(TAG, "x="+x);
                Toast.makeText(OpenImage.this, x, Toast.LENGTH_SHORT).show();
                }
            
        }
      

Answer 1

In this code you only get urls. You are not displaying any image.

As you have an url, maybe you should try to display them in a webview Example:

webView = (WebView) findViewById(R.id.webView1);
        webView.getSettings().setJavaScriptEnabled(true);
        webView.loadUrl("http://l.yimg.com/a/i/us/we/52/21.gif");

Answer 2

Here is my code. It is working. Please change your minsdkversion in Androidmanifest to 9. StrictPolicy require minimum sdk version to be 9

mainactivity.java

    package com.example.test;

import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.StrictMode;
import android.view.Menu;
import android.widget.ImageView;

public class MainActivity extends Activity {
    ImageView image1,image2;
    Bitmap bitmap;
    final static String imageLocation="http://www.codeincloud.tk/play.png"; //Use any image location. 
    String[] imageUrl={"http://l.yimg.com/a/i/us/we/52/21.gif","https://devimages.apple.com.edgekey.net/contact/images/technical-icon.png","https://devimages.apple.com.edgekey.net/contact/images/technical-icon.png"};

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

        image1 = (ImageView)findViewById(R.id.imageView1);
        image2 = (ImageView)findViewById(R.id.imageView2);

        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
        StrictMode.setThreadPolicy(policy);

        URL imageURL = null;

        try {
            for(int i=0;i<imageUrl.length;i++){
                imageURL = new URL(imageUrl[i]);

                HttpURLConnection connection= (HttpURLConnection)imageURL.openConnection();
                connection.setDoInput(true);
                connection.connect();
                InputStream inputStream = connection.getInputStream();

                bitmap = BitmapFactory.decodeStream(inputStream);//Convert to bitmap

                if(i == 0)
                    image1.setImageBitmap(bitmap);

                if(i == 1)
                    image2.setImageBitmap(bitmap);

            }
        }
        catch (IOException e) {

            e.printStackTrace();
        }



    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="69dp"
        android:layout_marginTop="106dp"
        android:src="@drawable/ic_launcher" />

    <ImageView
        android:id="@+id/imageView2"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_alignTop="@+id/imageView1"
        android:layout_marginLeft="183dp"
        android:layout_marginTop="45dp"
        android:layout_toRightOf="@+id/imageView1"
        android:src="@drawable/ic_launcher" />

</RelativeLayout>

Answer 3

Main.java

    String[] imageUrl={"https://devimages.apple.com.edgekey.net/contact/images/technical-icon.png","http://www.codeincloud.tk/play.png",
                             "https://devimages.apple.com.edgekey.net/contact/images/technical-icon.png"};  


        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);

            if (android.os.Build.VERSION.SDK_INT > 9) {
                StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
                StrictMode.setThreadPolicy(policy);
            }

            imgView = (ImageView)findViewById(R.id.ImageViewTops);  
            imgView.setImageResource(Imgid[0]);      

            Button btnNextScreen = (Button) findViewById(R.id.btnNextScreen);
            btnNextScreen.setOnClickListener(new View.OnClickListener() {
              public void onClick(View v) {
                    String image_selected = imageUrl[selected_image];
                    sendMessage(image_selected);
                }

            });

            topsgallery = (Gallery) findViewById(R.id.gallery1);
            topsgallery.setAdapter(new AddImgAdp (this));

            topsgallery.setOnItemClickListener(new OnItemClickListener() {
                public void onItemClick(@SuppressWarnings("rawtypes") AdapterView parent, View v, int position, long id) {

                    selected_image = position;
                    Log.d("Selected","Image url="+selected_image);
                    imgView = (ImageView)findViewById(R.id.ImageViewTops);
                }
             });    

     }
public void sendMessage(String image_selected) {
        Intent intent = new Intent(this, SecondActivity.class);
        String image_url = imageUrl[selected_image];
        intent.putExtra(EXTRA_MESSAGE, image_url);
        startActivity(intent);
    }
}

SecondActivity

public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.screen2);

        setupActionBar();
        Intent intent = getIntent();
        Context context = getApplicationContext();
        String image_url = intent.getStringExtra(Main.EXTRA_MESSAGE);
        int duration = Toast.LENGTH_SHORT;
        Toast toast = Toast.makeText(context, image_url, duration);
        toast.show();
        new DownloadImageTask((ImageView) findViewById(R.id.imageview))
        .execute(image_url);    

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

    }
    private class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {
        @SuppressWarnings("unused")
        ImageView bmImage;

        public DownloadImageTask(ImageView bmImage) {
            this.bmImage = bmImage;
        }

        protected Bitmap doInBackground(String... urls) {
            String urldisplay = urls[0];
            //Log.i("url","urldisplay="+urldisplay);
            Bitmap mIcon11 = null;
            try {
                InputStream in = new java.net.URL(urldisplay).openStream();
                mIcon11 = BitmapFactory.decodeStream(in);
                } catch (Exception e) {
                    Log.e("Error", e.getMessage());
                    e.printStackTrace();
                }
                return mIcon11;
        }

        protected void onPostExecute(Bitmap result) {
            ImageView bmImage = (ImageView)findViewById(R.id.imageview);
            bmImage.setImageBitmap(result);
        }


    }
}