imageview

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? Veer 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

I'm trying to get the real size of an image displayed in an image view. Actually my image is larger than the screen and the imageview is resizing the image to diplay it. I'm looking for this new size. I've tried to override the onDraw method of the ImageView in a custom view but I'm not getting the correct height and width... public class LandImageView extends ImageView { public LandImageView( Context context ) { super( context ); } public LandImageView(Context context, AttributeSet attrs) { super(context, attrs); } public LandImageView(Context context, AttributeSet attrs, int defStyle) {

I have an ImageView which is displaying a png that has a bigger aspect ratio than that of the device (vertically speaking - meaning its longer). I want to display this while maintaining aspect ratio, matching the width of the parent, and pinning the imageview to the top of the screen. The problem i have with using CENTER_CROP as the scale type is that it will (understandable) center the scaled image instead of aligning the top edge to the top edge f the image view. The problem with FIT_START is that the image will fit the screen height and not fill the width. I have solved this problem by

I'm having some troubles with a slideshow I'm building. I've created 2 animations in xml for fade in and fade out: fadein.xml <?xml version="1.0" encoding="UTF-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:interpolator="@android:anim/accelerate_interpolator" android:duration="2000"/> </set> fadeout.xml <?xml version="1.0" encoding="UTF-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <alpha android:fromAlpha="1.0" android:toAlpha="0.0" android:interpolator="@android:anim/accelerate

I have a GridView with ImageViews inside. I have 3 of them for each row. I can set correctly the width with WRAP_CONTENT and scaleType = CENTER_CROP, but I don't know how to set the ImageView's size to be a square. Here's what I did until now, it seems to be ok except the height, that is "static": imageView = new ImageView(context); imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); imageView.setLayoutParams(new GridView.LayoutParams(GridView.LayoutParams.WRAP_CONTENT, 300)); I'm doing it inside an adapter. The best option is to subclass ImageView yourself, overriding the measure pass: