Yes it is possible, it would look like this: Create an xml resources file in the folder /res/values/ called integers.xml. You are free to give it any name as you want, but choose one that is obvious. In that resources file, create your integer values. Your file then looks something like that: <?xml version=”1.0″ encoding=”utf-8″?> … Read more
With something like this: String mDrawableName = “myappicon”; int resID = getResources().getIdentifier(mDrawableName , “drawable”, getPackageName());
What was happening was, I was including the integer reference to the icon in the PendingIntent bundle, and that integer was later being referenced while being posted to the NotificationManager. In between getting the integer reference and the pending intent going off, the app was updated and all of the drawable references changed. The integer … 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
The main differences between the raw folder and the assets folder. Since raw is a subfolder of Resources (res), Android will automatically generate an ID for any file located inside it. This ID is then stored in the R class that will act as a reference to a file, meaning it can be easily accessed … Read more
As Philipp Reichart commented: android.R.id.content gives you the root element of a view, without having to know its actual name/type/ID. Check out Get root view from current activity In case anyone need, you can get this view with View Binding by using binding.root
You do not need to use formatted=”false” in your XML. You just need to use fully qualified string format markers – %[POSITION]$[TYPE] (where [POSITION] is the attribute position and [TYPE] is the variable type), rather than the short versions, for example %s or %d. Quote from Android Docs: String Formatting and Styling: <string name=”welcome_messages”>Hello, %1$s! … Read more
@EboMike: I didn’t know that Resources.getIdentifier() existed. In my projects I used the following code to do that: public static int getResId(String resName, Class<?> c) { try { Field idField = c.getDeclaredField(resName); return idField.getInt(idField); } catch (Exception e) { e.printStackTrace(); return -1; } } It would be used like this for getting the value of … Read more
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
This should do the job: TypedValue typedValue = new TypedValue(); Theme theme = context.getTheme(); theme.resolveAttribute(R.attr.theme_color, typedValue, true); @ColorInt int color = typedValue.data; Also make sure to apply the theme to your Activity before calling this code. Either use: android:theme=”@style/Theme.BlueTheme” in your manifest or call (before you call setContentView(int)): setTheme(R.style.Theme_BlueTheme) in onCreate(). I’ve tested it with … Read more