brendanzagaeski

<metadata>
	<!-- Some Metadata.xml fixes for binding the Socialize Android SDK (http://getsocialize.com/sdk/) in Xamarin.Android
	     Note that this is not a complete set of fixes. These changes only address the first round of compile errors. -->

	<!-- Fixes for duplicate EventArgs, as discussed on:
	     http://docs.xamarin.com/guides/android/advanced_topics/java_integration_overview/binding_a_java_library_(.jar)/#Problem_Duplicate_custom_EventArgs_types
	     Error message: Error CS0102: The type `SomeClass` already contains a definition for `p0' (CS0102) -->
	<attr path="/api/package[@name='com.socialize.auth.twitter']/interface[@name='TwitterAuthListener']/method[@name='onError' and count(parameter)=1 and parameter[1][@type='com.socialize.error.SocializeException']]" name="argsType">AuthTwitterErrorEventArgs</attr>
	<attr path="/api/package[@name='com.socialize.facebook']/interface[@name='Facebook.DialogListener']/method[@name='onComplete' and count(parameter)=1 and parameter[1][@type='android.os.Bundle

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<metadata>
    <!-- Some Metadata.xml fixes for binding "Java WebSockets" (https://github.com/TooTallNate/Java-WebSocket/) in Xamarin.Android -->

    <!-- This is a case of http://docs.xamarin.com/guides/android/advanced_topics/java_integration_overview/binding_a_java_library_(.jar)/#Problem_Duplicate_custom_EventArgs_types

         Error CS0102: The type `Org.Java_websocket.WebsocketMessageEventArgs'
         already contains a definition for `p0' -->
    <attr path="/api/package[@name='org.java_websocket']/interface[@name='WebSocketListener']/method[@name='onWebsocketMessage' and count(parameter)=2 and parameter[1][@type='org.java_websocket.WebSocket'] and parameter[2][@type='java.nio.ByteBuffer']]" name="argsType">WebsocketMessageByteBufferEventArgs</attr>

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

brendanzagaeski

<metadata>
  <!-- Error CS0234: The type or namespace name `QuadCorners' does not exist in the namespace `DE.Neom.Neoreadersdk'. Are you missing an assembly reference?
       
       This problem is caused by the default unspecified visibility of
       the QuadCorners Java class.

       Note in particular the very end of the following line from
       `obj/Debug/api.xml`:

       <class abstract="false" deprecated="not deprecated" extends="java.lang.Object" extends-generic-aware="java.lang.Object" final="false" name="QuadCorners" static="false" visibility="">

brendanzagaeski

<metadata>
  <!-- Some Metadata.xml fixes for binding the "Brother Print SDK for
       Android" (http://www.brother.com/product/dev/mobile/android/) in
       Xamarin.Android. -->


  <!-- Warning BG8401: Skipping Com.Brother.Ptouch.Sdk.LabelInfo.LabelColor, due to a duplicate field, method or nested type name

       This one is a bit tricky. Let's first just try removing the whole
       LabelColor nested class:

gabrielemariotti

You can use this class to realize a simple sectioned RecyclerView.Adapter without changing your code.

The RecyclerView should use a LinearLayoutManager. You can use this code also with the TwoWayView with the ListLayoutManager (https://github.com/lucasr/twoway-view)

This is a porting of the class SimpleSectionedListAdapter provided by Google

Example:

JonathanLalou

Android Emulator usage: emulator [options] [-qemu args]
  options:
    -sysdir <dir>                  search for system disk images in <dir>
    -system <file>                 read initial system image from <file>
    -datadir <dir>                 write user data into <dir>
    -kernel <file>                 use specific emulated kernel
    -ramdisk <file>                ramdisk image (default <system>/ramdisk.img
    -image <file>                  obsolete, use -system <file> instead
    -initdata <file>               same as '-init-data <file>'
    -data <file>                   data image (default <datadir>/userdata-qemu.img

jmoody

Tmate is a remote tmux session over ssh.

Intall with Homebrew

$ brew update && brew upgrade
$ brew install tmux
$ brew install reattach-to-user-namespace
$ brew install tmate

brendanzagaeski

  <!-- This is an example of http://developer.xamarin.com/guides/android/advanced_topics/java_integration_overview/binding-a-java-library/troubleshooting-bindings/#Problem_Duplicate_custom_EventArgs_types

       In this particular case, the conflicting definition is in
       `Com.Adtech.Mobilesdk.Publisher.Vast.Player.ILinearAdPlayer`.
       That interface also defines an "onError" method.

       Error CS0102: The type
       `Com.Adtech.Mobilesdk.Publisher.Vast.Player.ErrorEventArgs'
       already contains a definition for `p0' -->
  <attr path="/api/package[@name='com.adtech.mobilesdk.publisher.vast.player']/interface[@name='VideoPlayerListener']/method[@name='onError' and count(parameter)=1 and parameter[1][@type='java.lang.Exception']]" name="argsType">VideoPlayerListenerOnErrorArgs</attr>

JonDouglas

Xamarin.Android Performance Issues

1. Investigation

One of the best ways to investigate a problematic Xamarin.Android Errors is to first ensure you have the proper tooling available:

• Diagnostic MSBuild Output Enabled(Instructions)
• Android SDK Installed
• Android API Level Documentation