How set imageview scaletype to topCrop
Custom Android ImageView for top-crop scaling of the contained drawable.
import android.content.Context;
import android.graphics.Matrix;
import android.widget.ImageView;
/**
* ImageView to display top-crop scale of an image view.
*
* @author Chris Arriola
*/
public class TopCropImageView extends ImageView {
public TopCropImageView(Context context) {
super(context);
setScaleType(ScaleType.MATRIX);
}
@Override
protected boolean setFrame(int l, int t, int r, int b) {
final Matrix matrix = getImageMatrix();
float scale;
final int viewWidth = getWidth() - getPaddingLeft() - getPaddingRight();
final int viewHeight = getHeight() - getPaddingTop() - getPaddingBottom();
final int drawableWidth = getDrawable().getIntrinsicWidth();
final int drawableHeight = getDrawable().getIntrinsicHeight();
if (drawableWidth * viewHeight > drawableHeight * viewWidth) {
scale = (float) viewHeight / (float) drawableHeight;
} else {
scale = (float) viewWidth / (float) drawableWidth;
}
matrix.setScale(scale, scale);
setImageMatrix(matrix);
return super.setFrame(l, t, r, b);
}
}
https://gist.github.com/arriolac/3843346
I just wanted a temporary solution without excess work . Try this
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scaleType="centerCrop"
android:scrollY="-100dp"
android:id="@+id/poster"
/>
scrollY pulls your image up or down. Try it with different dp's and you 'll find the right size.