app:srcCompat is the most foolproof method of integrating vector drawables into your app.Vector drawables allow you to replace multiple png assets with a single vector graphic, defined in XML. While previously limited to Lollipop and higher devices Note As of Android Support Library 23.3.0, support vector drawables can only be loaded via app:srcCompat . you … Read more
Follow this link for solution: Android Lint contentDescription warning Resolved this warning by setting attribute android:contentDescription for my ImageView android:contentDescription=”@string/desc” Android Lint support in ADT 16 throws this warning to ensure that image widgets provide a contentDescription This defines text that briefly describes the content of the view. This property is used primarily for accessibility. … Read more
I too needed a rounded ImageView, I used the below code, you can modify it accordingly: import android.content.Context; import android.graphics.Bitmap; import android.graphics.Bitmap.Config; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.PorterDuff.Mode; import android.graphics.PorterDuffXfermode; import android.graphics.Rect; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.Drawable; import android.util.AttributeSet; import android.widget.ImageView; public class RoundedImageView extends ImageView { public RoundedImageView(Context context) { super(context); } public … Read more
I used to do it with the dennis.sheppard solution: viewToUse.setImageResource(0); it works but it is not documented so it isn’t really clear if it effects something else in the view (you can check the ImageView code if you like, i didn’t). I think the best solution is: viewToUse.setImageResource(android.R.color.transparent); I like this solution the most cause … Read more
Changing ImageView source: Using setBackgroundResource() method: myImgView.setBackgroundResource(R.drawable.monkey); you are putting that monkey in the background. I suggest the use of setImageResource() method: myImgView.setImageResource(R.drawable.monkey); or with setImageDrawable() method: myImgView.setImageDrawable(getResources().getDrawable(R.drawable.monkey)); *** With new android API 22 getResources().getDrawable() is now deprecated. This is an example how to use now: myImgView.setImageDrawable(getResources().getDrawable(R.drawable.monkey, getApplicationContext().getTheme())); and how to validate for old API … Read more
Labeeb is right about why you need to set image using path if your resources are already laying inside the resource folder , This kind of path is needed only when your images are stored in SD-Card . And try the below code to set Bitmap images from a file stored inside a SD-Card . … Read more
Yes, by default Android will scale your image down to fit the ImageView, maintaining the aspect ratio. However, make sure you’re setting the image to the ImageView using android:src=”…” rather than android:background=”…”. src= makes it scale the image maintaining aspect ratio, but background= makes it scale and distort the image to make it fit exactly … Read more
This is pretty late in response, but for anyone else that is looking for this, you can do the following code to manually round the corners of your images. http://www.ruibm.com/?p=184 This isn’t my code, but I’ve used it and it’s works wonderfully. I used it as a helper within an ImageHelper class and extended it … Read more
Use getView() or the View parameter from implementing the onViewCreated method. It returns the root view for the fragment (the one returned by onCreateView() method). With this you can call findViewById(). @Override public void onViewCreated(View view, @Nullable Bundle savedInstanceState) { ImageView imageView = (ImageView) getView().findViewById(R.id.foo); // or (ImageView) view.findViewById(R.id.foo); As getView() works only after onCreateView(), … Read more