From 064277a81053356cda3c276aaf22034e7daf785e Mon Sep 17 00:00:00 2001
From: Spencer Brown <spencer@privategrity.com>
Date: Tue, 13 Feb 2018 11:26:39 -0800
Subject: [PATCH] Get sample Android app talking to go library working
---
.gitignore | 1 +
README.md | 21 ++++++++++++----
android/.idea/gradle.xml | 1 +
android/.idea/misc.xml | 24 +++++++++++++++++++
android/.idea/modules.xml | 1 +
android/app/build.gradle | 3 ++-
.../messagingclient/MainActivity.java | 9 +++++++
.../app/src/main/res/layout/activity_main.xml | 9 ++++---
android/client/build.gradle | 2 ++
android/settings.gradle | 2 +-
hello.go | 7 ++++++
11 files changed, 69 insertions(+), 11 deletions(-)
create mode 100644 android/client/build.gradle
create mode 100644 hello.go
diff --git a/.gitignore b/.gitignore
index d0b369a49..30f29f0e7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,3 +26,4 @@ localdev_*
*.dex
*.class
*.aar
+*.jar
diff --git a/README.md b/README.md
index a2b2c7ba5..9b1d0a48d 100644
--- a/README.md
+++ b/README.md
@@ -33,9 +33,22 @@ In either case you will need to run $ gomobile init.
Building
==
-To build the .aar for the client, run
+To build the .aar for the client, cd to privategrity/client/android/client and
+run this command:
-$ gomobile bind
+$ gomobile bind -target=android gitlab.com/privategrity/client
+
+Adding the .aar to the Android Studio project
+==
+
+In case you need to add another .aar to the Android Studio project, follow
+these steps:
+
+1. Go to File-\>New-\>New Module.
+1. Scroll to and click on Import .JAR/.AAR Package.
+1. Pick the .aar in the file chooser.
+1. Click through the rest of the wizard.
+
+In any case, this isn't a recommended course of action because there might be
+some weirdness about gomobile generating more than one .aar.
-Then import the .aar in Android Studio. For future builds, you'll need to copy
-the new bindings .aar over the .aar that's been imported to Android Studio.
diff --git a/android/.idea/gradle.xml b/android/.idea/gradle.xml
index 7ac24c777..875fe877d 100644
--- a/android/.idea/gradle.xml
+++ b/android/.idea/gradle.xml
@@ -9,6 +9,7 @@
<set>
<option value="$PROJECT_DIR$" />
<option value="$PROJECT_DIR$/app" />
+ <option value="$PROJECT_DIR$/client" />
</set>
</option>
<option name="resolveModulePerSourceSet" value="false" />
diff --git a/android/.idea/misc.xml b/android/.idea/misc.xml
index 37a750962..396387992 100644
--- a/android/.idea/misc.xml
+++ b/android/.idea/misc.xml
@@ -1,5 +1,29 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
+ <component name="NullableNotNullManager">
+ <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
+ <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
+ <option name="myNullables">
+ <value>
+ <list size="4">
+ <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
+ <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
+ <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
+ <item index="3" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
+ </list>
+ </value>
+ </option>
+ <option name="myNotNulls">
+ <value>
+ <list size="4">
+ <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
+ <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
+ <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
+ <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
+ </list>
+ </value>
+ </option>
+ </component>
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/build/classes" />
</component>
diff --git a/android/.idea/modules.xml b/android/.idea/modules.xml
index abc31fc67..4987fb25c 100644
--- a/android/.idea/modules.xml
+++ b/android/.idea/modules.xml
@@ -4,6 +4,7 @@
<modules>
<module fileurl="file://$PROJECT_DIR$/android.iml" filepath="$PROJECT_DIR$/android.iml" />
<module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
+ <module fileurl="file://$PROJECT_DIR$/client/client.iml" filepath="$PROJECT_DIR$/client/client.iml" />
</modules>
</component>
</project>
\ No newline at end of file
diff --git a/android/app/build.gradle b/android/app/build.gradle
index bb62dc6c2..00c8d3e3c 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -19,10 +19,11 @@ android {
}
dependencies {
- implementation fileTree(dir: 'libs', include: ['*.jar'])
+ implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+ implementation project(':client')
}
diff --git a/android/app/src/main/java/com/privategrity/messagingclient/MainActivity.java b/android/app/src/main/java/com/privategrity/messagingclient/MainActivity.java
index 144abb2f3..d278844e9 100644
--- a/android/app/src/main/java/com/privategrity/messagingclient/MainActivity.java
+++ b/android/app/src/main/java/com/privategrity/messagingclient/MainActivity.java
@@ -2,12 +2,21 @@ package com.privategrity.messagingclient;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
+import android.widget.TextView;
+
+import client.Client;
public class MainActivity extends AppCompatActivity {
+ private TextView textView;
+
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
+ textView = (TextView) findViewById(R.id.mytextview);
+
+ String greetings = Client.greetings("Android and Gopher");
+ textView.setText(greetings);
}
}
diff --git a/android/app/src/main/res/layout/activity_main.xml b/android/app/src/main/res/layout/activity_main.xml
index b27ecbcb0..b4175c8ee 100644
--- a/android/app/src/main/res/layout/activity_main.xml
+++ b/android/app/src/main/res/layout/activity_main.xml
@@ -7,12 +7,11 @@
tools:context="com.privategrity.messagingclient.MainActivity">
<TextView
+ android:id="@+id/mytextview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
- android:text="Hello World!"
- app:layout_constraintBottom_toBottomOf="parent"
- app:layout_constraintLeft_toLeftOf="parent"
- app:layout_constraintRight_toRightOf="parent"
- app:layout_constraintTop_toTopOf="parent" />
+ android:text="TextView"
+ tools:layout_editor_absoluteX="16dp"
+ tools:layout_editor_absoluteY="16dp" />
</android.support.constraint.ConstraintLayout>
diff --git a/android/client/build.gradle b/android/client/build.gradle
new file mode 100644
index 000000000..2d28884b3
--- /dev/null
+++ b/android/client/build.gradle
@@ -0,0 +1,2 @@
+configurations.maybeCreate("default")
+artifacts.add("default", file('client.aar'))
\ No newline at end of file
diff --git a/android/settings.gradle b/android/settings.gradle
index e7b4def49..48a8eb7a4 100644
--- a/android/settings.gradle
+++ b/android/settings.gradle
@@ -1 +1 @@
-include ':app'
+include ':app', ':client'
diff --git a/hello.go b/hello.go
new file mode 100644
index 000000000..65ca75a1a
--- /dev/null
+++ b/hello.go
@@ -0,0 +1,7 @@
+package client
+
+import "fmt"
+
+func Greetings(name string) string {
+ return fmt.Sprintf("Hello, %s!", name)
+}
--
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