Enhance poor performance of decoding audio with MediaExtractor and MediaCodec to PCM
Current situation It takes 30 seconds for decoding a mp3 (file size: 4 MB, bit rate: 128 kbps, length: 4 minutes) file to PCM using MediaExtractor »
Android Instrumented Tests on Firebase Test Lab with Travis CI
If Travis CI is your Continuous Integration service, running Instrumented Tests right on the Travis CI build is a bad idea. You can only use ARM »
Gson TypeAdapter slow deserialization
If you have been using Gson's TypeAdapter you might want to check your TypeAdapter's constructer to see if it causing performance issue. Recently I received a »
Which storage directory should I use for storing on Android 6+
Android File System Structure Android uses the Linux file system structure which has a single root. So, both internal storage and external storage are directories which »
Disabling notification vibration on Android 8
Starting in Android 8.0 (API level 26), all notifications must be assigned to a channel or it will not appear. NotificationChannel is a new notification »
Which nullness annotation you should use on Android?
I noticed that calling some Android SDK method from Kotlin I got Platform Type instead of null-safety type even Android SDK .java file contains @Nullable annotation. »
Cannot scroll scrollable content inside ViewPager as BottomSheet of CoordinatorLayout?
If you had multiple scrollable contents inside ViewPager as BottomSheet of CoordinatorLayout. You might notice that your scrollable contents unable to scroll except the first one. »
Android debugging over Wi-Fi
My MacBook USB-C hub cannot serve Huawei Nexus 6P USB cable connection well. What matters is not only it often been disconnected but affect other USB »
MockitoConfiguration if using Retrofix + RxJava
What is MockitoConfiguration? Use it to configure Mockito. For now there are not many configuration options but it may change in future. In most cases you »
Android N uses Java nio buffer asReadOnlyBuffer() cause 8 bits shift bug
I've encountered a weird bug that a java.nio.buffer which is returned by asReadOnlyBuffer() method, could randomly 8 bits shift on get() result (mostly it's »