mdpi is the reference density — that is, 1 px on an mdpi display is equal to 1 dip. The ratio for asset scaling is: ldpi | mdpi | tvdpi | hdpi | xhdpi | xxhdpi | xxxhdpi 0.75 | 1 | 1.33 | 1.5 | 2 | 3 | 4 Although you don’t really … Read more
NOTE If your minimum API is 17+, go straight to the bottom of this answer. Otherwise, read on… NOTE If you are using App Bundles, you need to make sure you either disable language splitting or install the different language dynamically. See https://stackoverflow.com/a/51054393 for this. If you don’t do this, it will always use the … Read more
You can easily search for unused resources from Android Studio. Just press CtrlAltShifti and type “unused resources” (without quotes). That will execute lint. Super easy way to run lint commands (and other stuff from IDE). OR In Android Studio Menu > Refactor > Remove Unused Resources… Select the resources you want to remove. You can … Read more
You use a typed array in arrays.xml file within your /res/values folder that looks like this: <?xml version=”1.0″ encoding=”utf-8″?> <resources> <integer-array name=”random_imgs”> <item>@drawable/car_01</item> <item>@drawable/balloon_random_02</item> <item>@drawable/dog_03</item> </integer-array> </resources> Then in your activity, access them like so: TypedArray imgs = getResources().obtainTypedArray(R.array.random_imgs); // get resource ID by index, use 0 as default to set null resource imgs.getResourceId(i, 0) … Read more
Formatting and Styling Yes, see the following from String Resources: Formatting and Styling If you need to format your strings using String.format(String, Object…), then you can do so by putting your format arguments in the string resource. For example, with the following resource: <string name=”welcome_messages”>Hello, %1$s! You have %2$d new messages.</string> In this example, the … Read more
Android id overview An Android id is an integer commonly used to identify views; this id can be assigned via XML (when possible) and via code (programmatically.) The id is most useful for getting references for XML-defined Views generated by an Inflater (such as by using setContentView.) Assign id via XML Add an attribute of … Read more
There are 3 Solutions to solve this issue. 1) First Convert Image into Byte Array and then pass into Intent and in next activity get byte array from Bundle and Convert into Image(Bitmap) and set into ImageView. Convert Bitmap to Byte Array:- Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher); ByteArrayOutputStream stream = new ByteArrayOutputStream(); bmp.compress(Bitmap.CompressFormat.PNG, 100, stream); … Read more
With something like this: String mDrawableName = “myappicon”; int resID = getResources().getIdentifier(mDrawableName , “drawable”, getPackageName());
Create a subclass of Application, for instance public class App extends Application { Set the android:name attribute of your <application> tag in the AndroidManifest.xml to point to your new class, e.g. android:name=”.App” In the onCreate() method of your app instance, save your context (e.g. this) to a static field named mContext and create a static … Read more
Starting from Android Support Library 23, a new getColor() method has been added to ContextCompat. Its description from the official JavaDoc: Returns a color associated with a particular resource ID Starting in M, the returned color will be styled for the specified Context’s theme. So, just call: ContextCompat.getColor(context, R.color.your_color); You can check the ContextCompat.getColor() source … Read more