How To Delete Additional Space Imageview In Android

Question

I want use ImageView in my project, but it shows additional space in the layout. How can I remove the additional space? This image shows the problem: XML code:

Solution 1:

Try this custom ImageView class

publicclassResizableImageViewextendsImageView {

    publicResizableImageView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @OverrideprotectedvoidonMeasure(int widthMeasureSpec, int heightMeasureSpec){
        Drawabled= getDrawable();

        if(d!=null){
            // ceil not round - avoid thin vertical gaps along the left/right edgesintwidth= View.MeasureSpec.getSize(widthMeasureSpec);
            intheight= (int) Math.ceil((float) width * (float) d.getIntrinsicHeight() / (float) d.getIntrinsicWidth());
            setMeasuredDimension(width, height);
        }else{
            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        }
    }

}

And use this class as below

<your_package.ResizableImageViewandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignParentTop="true"android:src="@drawable/cover_menu_bg" />

Solution 2:

Use the imageview like these

<ImageView
   android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:adjustViewBounds="true"
   android:src="@drawable/icon"
   android:id="@+id/imv"
   android:scaleType="fitCenter" />

Solution 3:

For anyone looking for solution for both orientations. Here is my approach with samples:

First, my xml:

<?xml version="1.0" encoding="utf-8"?><com.example.michal.fillimageview.CustomLinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:gravity="center"android:background="#f0f000"android:orientation="vertical"><com.example.michal.fillimageview.ResizableImageViewandroid:layout_width="wrap_content"android:layout_height="0dp"android:layout_weight="1"android:adjustViewBounds="true"android:src="@drawable/p600_900" /><TextViewandroid:layout_width="match_parent"android:layout_height="wrap_content"android:background="@android:color/background_dark"android:text="Hello World!"android:textColor="@android:color/holo_red_dark"android:textSize="30sp" /><TextViewandroid:layout_width="match_parent"android:layout_height="wrap_content"android:background="@android:color/background_dark"android:text="Hello World!"android:textColor="@android:color/holo_red_dark"android:textSize="30sp" /></com.example.michal.fillimageview.CustomLinearLayout>

Class:

publicclassResizableImageViewextendsImageView {

    publicResizableImageView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @OverrideprotectedvoidonMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        Drawabled= getDrawable();

        if (d != null) {
            // ceil not round - avoid thin vertical gaps along the left/right edgesintwidth= View.MeasureSpec.getSize(widthMeasureSpec);
            intheight= View.MeasureSpec.getSize(heightMeasureSpec);

            if (height > width) {//portraitif (d.getIntrinsicWidth() > d.getIntrinsicHeight()) {
                    height = (int) Math.ceil((float) width * (float) d.getIntrinsicHeight() / (float) d.getIntrinsicWidth());
                    setMeasuredDimension(width, height);
                } else {
                    width = (int) Math.ceil((float) height * (float) d.getIntrinsicWidth() / (float) d.getIntrinsicHeight());
                    setMeasuredDimension(width, height);
                }
            } else {//landscape
                width = (int) Math.ceil((float) height * (float) d.getIntrinsicWidth() / (float) d.getIntrinsicHeight());
                setMeasuredDimension(width, height);
            }

        } else {
            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        }
    }
}