udacity / ud867

Course code repository for Gradle for Android and Java

ud867: Gradle for Android and Java

Welcome to the demos and exercises accompanying ud867 at Udacity!

Each directory contains a README.md or solution.gradle that will explain either the concept being explored or the exercise at hand. For each exercise, hints and a solution.gradle file are also provided.

This course is specifically concerned with the app build process, not writing apps in the first place. If you're just starting out on your Android journey, you might want to take Udacity's Developing Android Apps course.

ud867's Issues

Add instructions and solution to 4.10

Add instructions for setting up Gradle Daemon on Windows

Clarify type checking discussion

Grammar: 1.15-Demo-CustomTaskTypes/build.gradle

Lines 6 build.gradle

so you can write you class definition in-line in the script itself.

Suggested change:

so you can write your class definition in-line in the script itself.

Gradle and Java Compatibility

You should have made first a lesson about Gradle and Java Compatibility.
gradle-3.3-bin.zip is specified in gradle-wrapper.properties and this version doesn't support JDK > 8.

Add more to the Groovy Playground exercise

Needs more challenges

Make Android SDK and buildtools versions the same for all exercise and examples

Depending on the exercise, there are different SDK versions defined. Namely between SDK versions 21 and 22. This requires additional SDKs to be downloaded. Since I didn't have Android Stedio setup beforehand, I had to do some trouble shooting when the SDK version was changed. This was a minor inconvenience, but I could see this being harder for new developers.

$ git grep -E "buildToolsVersion|compileSdkVersion"                                                                                                                                                                                                                    
3.03-Demo-TheDefaultAndroidBuildScripts/app/build.gradle:    compileSdkVersion 21
3.03-Demo-TheDefaultAndroidBuildScripts/app/build.gradle:    buildToolsVersion "21.1.2"
3.04-Demo-BuildTypes/app/build.gradle:    compileSdkVersion 22
3.04-Demo-BuildTypes/app/build.gradle:    buildToolsVersion "22.0.1"
3.05-Exercise-ConfigureBuildTypes/app/build.gradle:    compileSdkVersion 21
3.05-Exercise-ConfigureBuildTypes/app/build.gradle:    buildToolsVersion "21.1.2"
3.06-Demo-DeclaringFlavors/app/build.gradle:    compileSdkVersion 22
3.06-Demo-DeclaringFlavors/app/build.gradle:    buildToolsVersion "22.0.1"
3.07-Exercise-DeclareFlavors/app/build.gradle:    compileSdkVersion 21
3.07-Exercise-DeclareFlavors/app/build.gradle:    buildToolsVersion "21.1.2"
3.08-Exercise-AddAFlavor-SpecificActivity/app/build.gradle:    compileSdkVersion 22
3.08-Exercise-AddAFlavor-SpecificActivity/app/build.gradle:    buildToolsVersion "22.0.1"
3.08-Exercise-AddAFlavor-SpecificActivity/solution/app/build.gradle:    compileSdkVersion 22
3.08-Exercise-AddAFlavor-SpecificActivity/solution/app/build.gradle:    buildToolsVersion "22.0.1"
3.09-Demo-Flavor-SpecificDependencies/app/build.gradle:    compileSdkVersion 22
3.09-Demo-Flavor-SpecificDependencies/app/build.gradle:    buildToolsVersion "22.0.1"
4.01-Demo-CreatingAJavaLibrary/app/build.gradle:    compileSdkVersion 22
4.01-Demo-CreatingAJavaLibrary/app/build.gradle:    buildToolsVersion "22.0.1"
4.02-Exercise-CreateAJavaLibrary/solution/app/build.gradle:    compileSdkVersion 22
4.02-Exercise-CreateAJavaLibrary/solution/app/build.gradle:    buildToolsVersion "22.0.1"
4.03-Demo-CreatingAnAndroidLibrary/app/build.gradle:    compileSdkVersion 22
4.03-Demo-CreatingAnAndroidLibrary/app/build.gradle:    buildToolsVersion "22.0.1"
4.03-Demo-CreatingAnAndroidLibrary/imageactivity/build.gradle:    compileSdkVersion 22
4.03-Demo-CreatingAnAndroidLibrary/imageactivity/build.gradle:    buildToolsVersion "22.0.1"
4.04-Exercise-CreateAnAndroidLibrary/solution/app/build.gradle:    compileSdkVersion 22
4.04-Exercise-CreateAnAndroidLibrary/solution/app/build.gradle:    buildToolsVersion "22.0.1"
4.04-Exercise-CreateAnAndroidLibrary/solution/jokedisplay/build.gradle:    compileSdkVersion 22
4.04-Exercise-CreateAnAndroidLibrary/solution/jokedisplay/build.gradle:    buildToolsVersion "22.0.1"
4.05-Demo-AddingASigningConfiguration/app/build.gradle:    compileSdkVersion 22
4.05-Demo-AddingASigningConfiguration/app/build.gradle:    buildToolsVersion "22.0.1"
4.06-Exercise-ConfigureSigning/app/build.gradle:    compileSdkVersion 22
4.06-Exercise-ConfigureSigning/app/build.gradle:    buildToolsVersion "22.0.1"
4.07-Demo-MultidexSupport/app/build.gradle:    compileSdkVersion 22
4.07-Demo-MultidexSupport/app/build.gradle:    buildToolsVersion "22.0.1"
4.08-Demo-ConfiguringProguard/app/build.gradle:    compileSdkVersion 22
4.08-Demo-ConfiguringProguard/app/build.gradle:    buildToolsVersion "22.0.1"
4.09-Demo-AndroidUnitTesting/app/build.gradle:    compileSdkVersion 22
4.09-Demo-AndroidUnitTesting/app/build.gradle:    buildToolsVersion "22.0.1"
4.10-Exercise-SetUpUnitTesting/app/build.gradle:    compileSdkVersion 22
4.10-Exercise-SetUpUnitTesting/app/build.gradle:    buildToolsVersion "21.1.2"
4.10-Exercise-SetUpUnitTesting/solution/app/build.gradle:    compileSdkVersion 22
4.10-Exercise-SetUpUnitTesting/solution/app/build.gradle:    buildToolsVersion "21.1.2"
FinalProject/app/build.gradle:    compileSdkVersion 22
FinalProject/app/build.gradle:    buildToolsVersion "22.0.1"

Error in 1.01-Exercise-RunYourFirstTask Could not find GradleWrapperMain

I'm running 1.01-Exercise-RunYourFirstTask from Ubuntu 18.04.

But it's giving me the following error:
Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain

Java version:
java version "1.8.0_191"
Java(TM) SE Runtime Environment (build 1.8.0_191-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode)

Typo: 1.17-Exercise-InvestigateLogging/build.gradle

Line 14 by ≠ be

3. Modify the `println()` call in our task action to instead by a logging
 statement at the LIFECYCLE level.

Suggested change:

3. Modify the `println()` call in our task action to instead be a logging
   statement at the LIFECYCLE level.

Add to readme directions how to properly import project into IDE.

This is more of a suggestion than issue. But in IntelliJ, when I try to import this project from existing sources. The recommended project structure ends up being a confangled mess of source folders and modules with names like main22, main23, test2 etc.. Ideally we could have each module being the root of the exercise e.g. 3.07-Exercise-DeclareFlavors.

I know I can just unzip the folder and run all gradle commands from the command line, but IDE functionality just makes things more convenient.

Issue with the version of jdk supporting Gradle wrapper

The gradle wrapper is not working with jdk 'version 9.0.1'
The options left with me is to downgrade my system jdk to version '1.8.0-151' for continuing this course .
Downgrading jdk would work for this purpose but i will get conflicts while running other application not supporting this downgraded version.
Downgrading jdkmay be a temporary solution ,but i request you to find a permanent solution for this issue.
And if there is already a solution to this issue ,please suggest.

Split Groovy demo into two demos again

Error:Execution failed for task ':backend:appengineStart'.

com.google.cloud.tools.appengine.cloudsdk.internal.process.ProcessRunnerException: Process exited before success message

i get this error when i trying to run server

Need solutions to Gradle Playground

Add period to end of task: 2.09-Exercise-AddDependenciesToCustomConfiguration/build.gradle

Line 9. Ending punctuation to be consistent with the rest of the tasks.

1. Create a new configuration called 'deps'

Suggested change:

1. Create a new configuration called 'deps'.

Fix package name in 4.02 solution

Currently com.example.udacity, and we've been using com.udacity.gradle everywhere else.

1.14-Exercise-UseGradleProperties: starter code throws compile error

Surrounding webOutputDir with single quotations solved the error for me.

task bundleWeb(type: Zip) {
    baseName = 'web'
    destinationDir = file('webOutputDir')

    from 'src/web'
}

Add better explanation to 4.09

Creating App Engine-based cloud backends is not supported in Android Studio 3.0

As stated here. It goes on to state that "To create a new mobile backend, you can use Firebase." The rubric requires a GCM so an installation of Android 2.3 is therefore also required. Perhaps that should be stated in the project README or perhaps the rubric should allow for a Firebase backend?

Confused about 1.07-Exercise-ConfigureATask

So, this may be a dumb question, but I'm confused about the 1.07 exercise for configuring a task. In the quiz on the Udacity web site, the answer for the "group" question was "udacity". Unless I'm missing something, according to the build.gradle, the group should be "Other tasks", correct?

Here are the instructions:

1. Create an empty task definition and name your task "hello".
2. Give your task a description.
3. Add an action to your task which prints "Hello World!"

This does not mention specifying the "group" name for the task. While the solutions.gradle does, it appears to be referencing a different build.gradle (group = 'udacity' // 2. Add task to "udacity" group -- in the build.gradle, #2 is actually "give it a description").

If the build.gradle is followed, shouldn't the resulting "group" be "Other tasks"?

Sorry - just trying to understand everything and confused as to why I got the wrong answer :)

Clarify how best to add new unit test classes

Add demo for Configuring Generated Tasks

Should discuss task dependency through inputs/outputs

Kinda important? Could pretty easily slot into an exercise?

Grammar: 2.07-Demo-DependencyReports/build.gradle

Line 22

We can get generate a dependency report by running the 'dependencies' task.

Suggested change:

We can generate a dependency report by running the 'dependencies' task.

1.17-Exercise-InvestigateLogging solution for Challenge is not work for me

terminal : fish
gradle : 3.4.1
gradle -b solution.gradle --debug hello2 | grep 'Hello World'
I can not find any message and this process is blocked,I am sorry for my English.

2.11 in assertEquals *expected* and *actual* mixed up

Here assert should be like:

Assert.assertEquals("Jeremy", person.getName());

Add stacktrace to Logging exercise

Edit grammar in 1.13-Demo-ParameterisingYourBuild/build.gradle

Lines 10-11 in build.gradle

Original:

There are two main ways to do this, a gradle.properties file, and command line arguments.

This currently appears as a list of "this", "a gradle.properties file", and "command line arguments". A colon should follow the word "this" instead of a comma, but even then the sentence seems awkward.

Suggested change:

The two main places to add properties are a gradle.properties file and command line arguments.

Task 'assemble' not found in root project '1.01-Exercise-RunYourFirstTask'.

Anyone else getting this error?

Remove OS X-specific 'open' command.

Line 26

$ open build/reports/tests/index.html

Non-Mac users aren't going to be happy when running this command.

Exercise 1.17 solution fix for Windows

in the solution the line:
$ gradle -b solution.gradle --debug hello2 | findstr 'Hello World'
,should become
$ gradle -b solution.gradle --debug hello2 | findstr "Hello World"
I love the way you work @JeremySilverTongue

Typo in README

Not gonna fork and pull-request for a simple change:

Add Interstitial Ad

Follow these instructions to add an interstitial ad to the free version. Display the add after the user hits the button, but before the joke is shown.

It looks like someone aded a d to the second sentence 😉

Question about 1.09-Exercise-ConfigureTaskDependencies

In the study video, teacher say only two task will show in the task list, but when I ran gradle -b solution.gradle -q task --all The output showed all tasks in "Other task", why is that?

Other tasks

addSweetener
blackCoffee
brew
drink
pour
sweetCoffee

no report generated

If tests are being failed gradle isnt generating any report . i have ran the tests and they failed and no report was generated.

1.11 zipTree not explained anywhere

https://discussions.udacity.com/t/where-to-find-the-ziptree-method-for-copy/203585

FAILURE: Build failed with an exception.

• What went wrong:
  Could not determine java version from '11.0.1'.

Add explanation to Project Dependencies Bonus

If you've got time. Feel free to assign back to me.

Error while building Ex3.07-DeclareFlavours in Andriod studio 3.0

Android plugin 3.0.0 and higher include a new dependency mechanism that automatically matches variants when consuming a library.
Error:All flavors must now belong to a named flavor dimension.
Can i create a pull request by making changes inside build.gradle file ?
Resource required : https://developer.android.com/studio/build/gradle-plugin-3-0-0-migration.html?utm_source=android-studio#variant_aware

Edit grammar in 1.07-Exercise-ConfigureATask/build.gradle

On line 3: There's an extra space between 'your' and 'first', and the first 'your' should be 'you'.

Change

It's time for your to create your  first Gradle task. Be sure to try and run

to

It's time for you to create your first Gradle task. Be sure to try and run

Grammar: 2.05-Demo-DeclaringDependencies/build.gradle

Line 35

In some cases we we simply have files that we want to add as dependencies.

Suggested change:

In some cases we simply have files that we want to add as dependencies.

I'm having an issue with the gradle-sync