CODEWITHSUNDEEP
androidimageview
Ankit
Ankit

Reputation: 4644

How to get the width and height of an Image View in android?

In my code I have an Image View in my XML layout and I keep changing the source image for this in my code. Now I want to know the width and height of the generated image each time.

I tried using getWidth(), getHeight(), getMeasuredWidth(), and getMeasuredHeight(), but they all return 0.

How can I get this?

Upvotes: 18

Views: 45894

Answers (7)

canaanhhh
canaanhhh

Reputation: 201

if you set ImageView a drawable, and the ImageView's height and width type is WRAP_CONTENT, you can get the ImageView's height and width by this even you calling from onCreate()

int height = imageView.getDrawable().getIntrinsicHeight();
int width = imageView.getDrawable().getIntrinsicWidth();

Upvotes: 5

Yogesh Rathi
Yogesh Rathi

Reputation: 6499

Try this solution:

Bitmap bitmap = ((BitmapDrawable)imageView.getBackground()).getBitmap();
int width = bitmap.getWidth();
int height = bitmap.getHeight();

Upvotes: 1

Ravi Makvana
Ravi Makvana

Reputation: 2902

try this code 

int finalHeight, finalWidth;
final ImageView iv = (ImageView)findViewById(R.id.scaled_image);
final TextView tv = (TextView)findViewById(R.id.size_label);
ViewTreeObserver vto = iv.getViewTreeObserver();
vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
    public boolean onPreDraw() {
        iv.getViewTreeObserver().removeOnPreDrawListener(this);
        finalHeight = iv.getMeasuredHeight();
        finalWidth = iv.getMeasuredWidth();
        tv.setText("Height: " + finalHeight + " Width: " + finalWidth);
        return true;
    }
});

it's really working...

Upvotes: 4

Veer
Veer

Reputation: 2071

Where you calling getWidth() and getHeight() on ImageView? If you calling from onCreate() in activity, it won't work. You need to wait for activity window to attached and then call getWidth() and getHeight() on ImageView. You can try calling getWidth() and getHeight() from onWindowFocusChanged() method of your activity.

@Override
public void onWindowFocusChanged(boolean hasFocus){
    int width=imageView.getWidth();
    int height=imageView.getHeight();
}

Upvotes: 43

Sreedev
Sreedev

Reputation: 6653

First you have to convert the image to mutablebitmap and the try to get the width and height of the image and mostly this will solve your issue..

    Bitmap Rbitmap = Bitmap.createBitmap(bitmap).copy(
                    Config.ARGB_4444, true);

Rbitmap.getWidth();
Rbitmap.getheight();

Upvotes: 1

Khan
Khan

Reputation: 7605

try this

 ImageView iv=(ImageView)findViewById(R.id.image);
 ViewTreeObserver vto = iv.getViewTreeObserver();
    vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
        public boolean onPreDraw() {
           finalHeight = iv.getMeasuredHeight();
           finalWidth = iv.getMeasuredWidth();
           Log.e("hilength","Height: " + finalHeight + " Width: " + finalWidth);
            return true;
        }
    });

Upvotes: 14

Jaya Mayu
Jaya Mayu

Reputation: 17247

The way you make reference to the image object is wrong. That's why you are given zero all the time. first create a bitmap object from imageview and get the width and height from it.

When taken a image from cam I do the following and it works like a charm.

Bitmap image2 = (Bitmap) data1.getExtras().get("data");
double width = Double.valueOf(image2.getWidth());
Log.v("WIDTH", String.valueOf(width));
double height = Double.valueOf(image2.getHeight());
Log.v("height", String.valueOf(height));

Hope it helps for you.

Upvotes: 1

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