Logging brings some light into the darkness of your code. If you are new to logging please have a look at Log4j2 for Kotlin Import import android.util.Log Tag class MainActivity : AppCompatActivity() { companion object { const val TAG = “MainActivity” } Log statement override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) Log.d(TAG, “onCreate”) } Logcat Further…
The version of the YouTube API service installed on this device is not valid. -> Update YouTube app 🙂
The easiest way to add external dependencies with local jar files to your gradle is: dependencies { implementation(files(“libs/YouTubeAndroidPlayerApi.jar”)) If you don’t want to add every lib individually you can use: dependencies { implementation fileTree(‘libs’)
Consider Volley a 2.0 version of Android Asynchronous Http Client. A major advantage of Volley over ASyncTask is that you can do multiple requests simultaneously without the overhead of thread management. Gradle Add implementation ‘com.android.volley:volley:1.2.1’ to your module gradle dependencies. Basic Anatomy of a Volley Request val queue = Volley.newRequestQueue(context) val stringRequest = StringRequest( Request.Method.GET,…
Adding a splash screen to your app can be done in a five-step process Add a background_color.xml <?xml version=”1.0″ encoding=”utf-8″?> <shape xmlns:android=”http://schemas.android.com/apk/res/android” android:shape=”rectangle”> <solid android:color=”@color/black” /> </shape> Add splashscreen.xml <?xml version=”1.0″ encoding=”utf-8″?> <layer-list xmlns:android=”http://schemas.android.com/apk/res/android”> <item android:drawable=”@drawable/background_color”/> <item> <bitmap android:gravity=”center” android:src=”@drawable/prestissimo_logo_green”/> </item> </layer-list> Add themes.xml <style name=”SplashTheme” parent=”Theme.MaterialComponents.Light.NoActionBar”> <item name=”android:windowBackground”>@drawable/splashscreen</item> <item name=”android:statusBarColor”>@color/pg_green</item> </style> Add new activity:…
In Passing data between fragments using SafeArgs I showed You how to pass data between -well- fragments. This included all basic / built-in types like Strings and Integers. In this part I will show you how you can pass custom objects.
If you want to add another language for your app do the following Create a new folder e.g. app/src/main/res/values-de Add strings.xml into this folder Translate the content The cool thing about translation in android is that you can do it incrementally: when there is no translation for a string resource in a locale Android will…
App Gradle plugins { id ‘androidx.navigation.safeargs.kotlin Project Gradle dependencies { classpath “androidx.navigation:navigation-safe-args-gradle-plugin:2.3.5″ nav_graph.xml <fragment> <action android:id=”@+id/action_SecondFragment_to_FirstFragment” app:destination=”@id/FirstFragment” /> <argument android:name=”myArg” app:argType=”integer” /> FirstFragment import com.example.codelabsfirstappwithkotlin.databinding.FragmentFirstBinding val action = FirstFragmentDirections.actionFirstFragmentToSecondFragment(currentCount) findNavController().navigate(action) SecondFragment import androidx.navigation.fragment.navArgs val args: SecondFragmentArgs by navArgs() val count = args.myArg
Get Device Info The device command gives you info about connected well devices $adb devices -l List of devices attached LGD8559ea73a60 device product:g3_global_com model:LG_D855 device:g3 transport_id:2 Shell $ adb shell Services shell@g3:/ $ service list Found 132 services: 0 AtCmdFwd: [com.qualcomm.atfwd.IAtCmdFwd] … Device Properties shell@g3:/ $ getprop [DEVICE_PROVISIONED]: [1] … Get CPU information shell@g3:/…
If you write an app that should play sound here is a snippet for you import AVFoundation var player: AVAudioPlayer? let url = Bundle.main.path(forResource: “richtig”, ofType: “wav”) do { try AVAudioSession.sharedInstance().setMode(.default) try AVAudioSession.sharedInstance().setActive(true, options: .notifyOthersOnDeactivation) guard let url = url else { return } player = try AVAudioPlayer(contentsOf: URL(fileURLWithPath: url)) } catch { print(“Something went…