android-vectordrawable | 易学教程

VectorDrawable - is it available somehow for pre-Lollipop versions of Android? [closed]

阅读更多关于 VectorDrawable - is it available somehow for pre-Lollipop versions of Android? [closed]

Background I've noticed that Android now supports some kind of vector drawing, via a class called " VectorDrawable " (and also AnimatedVectorDrawable , BTW). I've found about it by looking at what's new on Android-Studio . I wonder if this would be the end of having to put multiple files into multiple folders ( mdpi , hdpi , xhdpi , etc). That would be great and might minimize apps sizes on some cases. The questions I'd like to ask a few questions regarding this new class: Is it possible to use it in older Android versions, maybe via a library of even the support library of Google? I'm not

How to properly use backwards compatible Vector Drawable with the latest Android Support Library?

阅读更多关于 How to properly use backwards compatible Vector Drawable with the latest Android Support Library?

问题 Vector drawable has been added to Support Library not so long time ago and there were a lot of changes in the API since then: Gradle flags, initializer blocks, selectors, custom XML attributes etc. The question is - how to properly use it now (support lib v25) in these cases: ImageView TextView drawable Menu icon Notification icon XML and programmatically. 回答1: Add the latest support lib to your app's build.gradle dependencies: compile 'com.android.support:appcompat-v7:26.0.2' and add the

Is it possible to use VectorDrawable in Buttons and TextViews using android:DrawableRight?

阅读更多关于 Is it possible to use VectorDrawable in Buttons and TextViews using android:DrawableRight?

问题 When I use VectorDrawable assets in a textview or imageview I get a runtime crash when using \"android:DrawableRight\" / \"android:DrawableEnd\" / \"android:DrawableStart\" / \"android:DrawableLeft\". The app will compile fine without any warnings. I am using Gradle 1.5 Support Library 23.2 (\'com.android.support:appcompat-v7:23.2.0\') What I have found though is that I can programmatically assign SVG\'s in Java without crashes like this. TextView tv = (TextView) findViewById(R.id.textView);

Getting Bitmap from vector drawable

阅读更多关于 Getting Bitmap from vector drawable

问题 In my application, I have to set a large icon for a notification. LargeIcon must be a Bitmap, and my drawables are vector images (the new feature in Android, see this link) The problem is when I try to decode a resource that is a vector image, I get a null returned. Here is the sample of code : if (BitmapFactory.decodeResource(arg0.getResources(), R.drawable.vector_menu_objectifs) == null) Log.d(\"ISNULL\", \"NULL\"); else Log.d(\"ISNULL\", \"NOT NULL\"); In this sample, when I replace R