CODEWITHSUNDEEP
androidbitmapimageview
user3057414
user3057414

Reputation: 41

How to set an imageView to square view in android?

I wanna to create an app that view an image/poster, I want the imageView in square. Before this, i try to get the screen width and assign it to image height and width, something like this

Bitmap newicon = Bitmap.CreateBitmap (int x, int y, int width, int height, matrix, false/true);

But there is an error occur "x + width <= bitmap.width()". This is the example that i create so far, but i set the height to 400dp. I want the height and width is flexible depend on phone size. Any ideas? 

<ImageView
                android:src="@android:drawable/ic_menu_gallery"
                android:layout_width="match_parent"
                android:layout_height="400dp"
                android:adjustViewBounds="true"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:layout_marginTop="10dp"
                android:scaleType="centerCrop"
                android:id="@+id/ivPoster" />

enter image description here

Upvotes: 1

Views: 3898

Answers (1)

Harin
Harin

Reputation: 2423

You need to use custom imageview for this, take a look at this:

public class SquareImageView extends ImageView {
    public SquareImageView(Context context) {
        super(context);
    }

    public SquareImageView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public SquareImageView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        setMeasuredDimension(getMeasuredWidth(), getMeasuredWidth()); // Snap to width
    }
}

Use it instead of ImageView in your layout file.

Hope this helped!

Upvotes: 3

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