Reactive Programming How to use SerializedSubject

and SubscribeOn do in Reactive Programming. Run different operators on different threads will not break ... happens in different thread concurrently. What the documentation says about this "When you use ... the SerializedSubject comes to the rescue. Just wrap your observable in SerializedSubject, you are safe ... , Object> subject = new SerializedSubject<>(PublishSubject.create()); subject.subscribe(new

What ObserveOn and SubscribeOn do in Reactive Programming

Both ObserveOn and SubscribeOn are about instruct the system to do something in some threads ... , you can find observeOn and subscribeOn method in the Observable instance, but you can only find subscribe ... , and before the invocation of subscribe, nothing is done. Now we can understand what subscribeOn ... all of them. Change the thread to do subscribe, that is subscribeOn another thread public

Gradle Hello World project with RxJava

a Gradle project, using the QuickStart template [Step 2. Add RxJava dependencies] Open your ... RxJava is the Java implementation of Rx Framework which was developed at Microsoft. It'a ... a library that allows you build reactive systems. [Step 1. Create Java QuickStart project] Create ... build.gradle file and add a line in dependencies block dependencies { compile group: 'commons

Gradle Create project failed Unable to start the daemon process

Occasionally When I create a new Gradle project with the wizard I get this error Unable ... to start the daemon process. This problem might be caused by incorrect configuration of the daemon ... . The conclusion is to start a default Gradle Daemon JVM will fail in some situations, you can solve ... . By default, when starting the Daemon JVM process, the Xmx parameter which specifies the max heap size used

Reactive Programming How to use Subject

in Reactive Programming. You can see the differences between them. Many people using the two names ... Put it simply, a subject is both an observer and an observable. This sound confusing ... , how to understand it? This post will shows you the usage of subject. Being an observer means ... operator. Subject being observer by implementing the Observer interface. public interface

Understanding Android activity onCreate method

back, Android will recreate the activity and the onCreate method is called again ... , this method is invoked by Android Activity Manager when the activity is first created. Here ... is a typical example of onCreate method in an activity class @Override public void onCreate ... an inherited method, this post will introduces the onCreate method. As the name indicated

Android APK signed vs unsigned

tool. The signed and unsigned APK are exactly the same except the signed APK has some extra ... -INF. Different contents in META-INF in signed and unsigned APK: As you can see ... , there are three extra files in signed APK: MANIFEST.MF, CERT.SF, CERT.RSA. The unsigned APK ... By default when you build your Android project, there will be some variants of APK generated

Gradle Android Invalid maximum heap size: Xmx4g

occurred. Program will exit. Invalid maximum heap size: -Xmx4g The specified size exceeds ... Get this error when execute the build task of an Android project with Gradle. FAILURE: Build ... the maximum representable size. [sts] Build failed This problem is connected with the Android dex ... , there are options in Gradle dexOptions { incremental true javaMaxHeapSize "4g

Android You have not accepted the license agreements

occurred configuring project ':app'. > You have not accepted the license agreements of the following ... the license agreements and complete the installation of the missing components using the Android Studio ... the necessary components and accept the license agreements (you can't install it without agreeing), still ... SDK Manager. Alternatively, to learn how to transfer the license agreements from one workstation

Gradle Android build SDK location not found

: A problem occurred configuring project ':app'. > SDK location not found. Define location with sdk.dir ... Building Android project needs the Android SDK, if you don't have it, you will get this error ... when import Gradle Android into Eclipse. Support for clients using tooling API version 1.5 ... . CONFIGURE FAILED Total time: 33 mins 54.254 secs The first step is install the Android SDK
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