How to pass image data from one activity to another activity?

Question

I am using two activities. One activity displays images in a GridView and by clicking on a particular image in that GridView it should display the full screen image in another activity.

How can I achieve this?

My MyGridView.java

mGridView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v, int position,long id) {
    // TODO Auto-generated method stub
    Toast.makeText(getApplicationContext(), "Image"+(position+1),Toast.LENGTH_SHORT).show();
    System.out.println(id);
    Intent i = new Intent(this, MyImageViewActivity.class);
    Bundle bundle = new Bundle();
    bundle.putInt("image", position);
    i.putExtras(bundle);
    startActivityForResult(i, 0);
}
});

score 3 · Answer 1 · answered Jul 11 '11 at 07:29

3

Pass the image URL/Uri instead of passing raw image data.

answered Jul 11 '11 at 07:29

Kumar Bibek

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i have made array for the images. – Saurabh Jul 11 '11 at 07:30
2

It would be great if you could add a short pseudo code sample. – Octavian Helm Jul 11 '11 at 07:34

score 2 · Answer 2 · answered Jul 11 '11 at 07:31

2

You pass parameters to an Activity in an Intent. If the image comes from a file, pass the path String, otherwise pass the Bitmap

startActivity(new Intent(this, YourActivity.class).putExtras(new Bundle().putParcelable("bitmap", Bitmap)))

answered Jul 11 '11 at 07:31

P Varga

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score 2 · Answer 3 · edited Jul 18 '12 at 10:05

2

To pass the data between two activities:

bytes[] imgs = ... // your image
Intent intent = new Intent(this, YourActivity.class);
intent.putExtra("img", imgs);
startActivity(intent);

Then in YourActivity:

bytes[] receiver = getIntent().getExtra("imgs");

Also go thro this link which wil also help u.
Here u can know how to convert bitmap to bytes

edited Jul 18 '12 at 10:05

Nikhil Agrawal

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answered Jul 11 '11 at 07:31

Hussain

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Sherif elKhatib · Accepted Answer · 2011-07-11T08:18:10.747

2

In MyGridView: (someInteger is an integer that represents the index of the selected image

Intent myIntent = new Intent(this, MyImageViewActivity.class);
Bundle bundle = new Bundle();
bundle.putInt("image", someInteger);
myIntent.putExtras(bundle);
startActivityForResult(myIntent, 0);

In MyImageViewActivity:

Bundle bundle = this.getIntent().getExtras();
int pic = bundle.getInt("image");

of course, you can put anything in the bundle! maybe a byte array or something

edited Jul 11 '11 at 08:18

answered Jul 11 '11 at 07:33

Sherif elKhatib

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Intent myIntent = new Intent(this, yourOtherActivity.class); shows error "The constructor Intent(new AdapterView.OnItemClickListener(){}, Class) is undefined" – Saurabh Jul 11 '11 at 08:02
change yourOtherActivity to the class name of your second activity – Sherif elKhatib Jul 11 '11 at 08:07
Sorrry..i didn't get u!See,i have two class one is MyGridView.java and another is MyImageViewActivity.java. content i have written in MyGridView.java, is this correct way? – Saurabh Jul 11 '11 at 08:13
error solved but it shows error while running the project Error is "ERROR/AndroidRuntime(6367): Caused by: java.lang.NullPointerException" – Saurabh Jul 11 '11 at 08:36
then pic will be used by setimagresource?? – Saurabh Jul 11 '11 at 09:24
yes, i changed with extra.putInt("image id", (int) id); because it is 'long' but not solved yet. – Saurabh Jul 11 '11 at 09:40
use putLong instead of putInt! and getLong instead of getInt – Sherif elKhatib Jul 11 '11 at 09:49
@Saurabh let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/1313/discussion-between-sherif-and-saurabh) – Sherif elKhatib Jul 11 '11 at 09:49

score 1 · Answer 5 · answered Jul 11 '11 at 07:32

1

Once an item of Grid View is clicked, get the clicked item and pass it to next activity as an argument through PutExtra. In the next activity retrieve the image from extras and display it to user

answered Jul 11 '11 at 07:32

Haris Hasan

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score 1 · Answer 6 · answered Jul 11 '11 at 07:32

1

I suppose you need use Intent class.

Intent intent = new Intent(YourSourceActivity.this, TargetActivty.class);
Bundle addinfo = new Bundle();

addinfo.putInt("imageid", someid);

intent.putExtras(addinfo);

answered Jul 11 '11 at 07:32

movax

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Thanks man and plus In the target activity we just need Bundle bundle = this.getIntent().getExtras(); int pic = bundle.getInt("imageid"); – ashim888 Jan 01 '16 at 16:20

score 0 · Answer 7 · answered Jan 03 '16 at 17:13

This is my process: it's so good. Activity1:

ByteArrayOutputStream stream=new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.JPEG,100,stream);
    byte[] byteArray=stream.toByteArray();
    Intent intent = new Intent(getApplicationContext(), FrameActivity.class);
    intent.putExtra("Image", byteArray);
    startActivity(intent);

in FrameActivity.class

collageView = (CollageView) findViewById(R.id.btn_collage);
    byte[] byteArray = getIntent().getByteArrayExtra("Image");
    Bitmap bmp = BitmapFactory.decodeByteArray(byteArray, 0, byteArray.length);
    collageView.setImageBitmap(bmp);

score 0 · Answer 8 · answered Jul 11 '11 at 07:32

0

Try passing id related to image through intent.putExtra(), and receive it through bundle on launched activity.

answered Jul 11 '11 at 07:32

MGK

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all id which i m getting are 0. I don't know whether they are correct or not. – Saurabh Jul 11 '11 at 08:04

score 0 · Answer 9 · answered Jul 11 '11 at 07:35

in Activity convert the image to ByteArray and append it to the intent as

intent.putExtra("img",<ByteArray>);

then startActivity B.

In Activity B

Bitmap bm = BitmapFactory.decodeByteArray(getIntent().getByteArrayExtra("img"), 0, getIntent().getByteArrayExtra("img").length);

This way you can pass image between activity.

How to pass image data from one activity to another activity?

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