How to use ViewModel in Android
Dependencies dependencies { implementation ‘androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.0’ ViewModel class and LiveData
What is python pbr?
In Distributing your own package on PyPi I’ve talked about setuptools and twine to upload a package to the Python Package Index. PBR is a nice little add-on to simplify the setup and the deplyoment of your packages.
Stetho – A debug bridge for Android applications
Stetho is a sophisticated debug bridge for Android applications. When enabled, developers have access to the Chrome Developer Tools feature natively part of the Chrome desktop browser. Developers can also choose to enable the optional dumpapp tool which offers a powerful command-line interface to application internals. Gradle implementation ‘com.facebook.stetho:stetho:1.6.0’ Initialization class PracticeTrackerApplication : Application() {…
What is kapt?
kapt is short for Kotlin annotation processor tool. Why do I need it? tl;dr; every time you use an annotation in a Kotlin file you need to use kapt. E.g. @Parcelize in Pass custom objects via SafeArgs Prerequisites dependencies { kapt(“groupId:artifactId:version”) } plugins { kotlin(“kapt”) version “1.5.31” } Further reading https://kotlinlang.org/docs/kapt.html
What is Ninja?
Ninja is a build system which replaces the GNU make in AOSP Up to Marshmallow / 6,0 the build system was based on GNU Make In Nougat / 7.0 and later, the build is run by ninja Ninja works from a pre-processed manifest generated by kati and soong kati kati converts Android.mk files into ninja…
Dababase Stuff with Room
What a nice room! Room is an ORM which runs on Android and persists its data into an sqlite database.
How can you use StrictMode in your Android app?
import android.os.StrictMode import android.os.StrictMode.ThreadPolicy import android.os.StrictMode.VmPolicy class LevelUpApplication : Application() { override fun onCreate() { if (BuildConfig.DEBUG) { StrictMode.setThreadPolicy( ThreadPolicy.Builder() .detectDiskReads() .detectDiskWrites() .detectNetwork() .penaltyLog() .build() ) StrictMode.setVmPolicy( VmPolicy.Builder() .detectLeakedSqlLiteObjects() .detectLeakedClosableObjects() .penaltyLog() .penaltyDeath() .build() ) } super.onCreate() https://developer.android.com/reference/android/os/StrictMode
Replace findViewById with View Binding
Perhaps you have code that looks like that: val mImageView = findViewById<ImageView>(R.id.img_view) mImageView.setOnClickListener(View.OnClickListener This has worked properly over the last years but what are the drawbacks? Or what are the promises of the new View Binding concept? View Binding is always null-safe and type-safe It compiles faster Gradle Enable View Binding in gradle: android {…
How to fix Camera: Camera new cameraInitNormal:-13
I’ve integrated a QRCode scanner into my app and it worked fine on my old Android 5 device but throws the error Camera: Camera new cameraInitNormal:-13 on Android 8. To fix this You have to integrate some code to check if permission is already granted by the user and in case it is not, request…
Experiments for Remote Teams
As you might know I am a fan of Management 3.0 and especially the celebration grid. The main idea is to do experiments to find out what’s working and what’s not. So when the pandemic started and our team went into full remote we did some experiments. First minutes of Daily dedicated to chit chat…