Android View same Width and Height

Question

Following is my xml code. In my LinearLayout. I have two child views , which are aligned using weightSum. I have an ImageView whose Width is aligned properly due to weightSum, but the problem is with its height. I want it's Height to be same dimensions as of its width. Is there any solution without using static dp values.

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:paddingBottom="5dp"
    android:paddingLeft="5dp"
    android:paddingRight="5dp">

    <LinearLayout
        android:background="@drawable/background_gradien_yellow"
        android:weightSum="10"
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

            <ImageView
                android:layout_weight="6"
                android:id="@+id/startbtn"
                android:textStyle="bold"
                android:alpha="0.8"
                android:textColor="#fff"
                android:text="@string/start"
                android:layout_centerInParent="true"
               android:background="@drawable/background_gradient_circular"
                android:layout_width="match_parent"
                android:layout_height="150dp"/>


        <LinearLayout
            android:layout_marginTop="20dp"
            android:layout_marginBottom="20dp"
            android:orientation="vertical"
            android:layout_weight="3"
            android:layout_width="match_parent"
            android:layout_height="match_parent">


            <TextView
                android:textColor="@color/White"
                android:id="@+id/tv_challange_title"
                android:textSize="20sp"
                android:text="Early-Bird Challange"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"/>

            <TextView
                android:id="@+id/tv_challange_desc"
                android:alpha="0.5"
                android:textColor="@color/White"
                android:textSize="15sp"
                android:layout_marginTop="5dp"
                android:text="Take 100 steps five times within.. "
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"/>


        </LinearLayout>

    </LinearLayout>

</RelativeLayout>

Answer 1

Found solution by using custom ImageView. Its the Best solution. Setting Height same as width in custom ImageView class.

Java code:

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);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);

        int width = getMeasuredWidth();
        setMeasuredDimension(width, width);
    }

}

XML code

         <com.mypakage.utils.SquareImageView
            android:background="@drawable/fitbit"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>

Answer 2

I think you can do it with your activity's java code.

Something like this one:

android.view.ViewGroup.LayoutParams mParams = imageView.getLayoutParams();
mParams.height = imageView.getWidth();
imageView.setLayoutParams(mParams);