How do I add a library (android-support-v7-appcompat) in IntelliJ IDEA

I created a project, copied the resource files in the project, library, added it to the project structure, prescribed style Theme.AppCompat. Compiled without errors, but when you start the relegation Exception:

08-03 00:50:00.406: ERROR/AndroidRuntime(4055): FATAL EXCEPTION: main
        java.lang.NoClassDefFoundError: android.support.v7.appcompat.R$styleable
        at android.support.v7.app.ActionBarActivityDelegate.onCreate(ActionBarActivityDelegate.java:98)
        at android.support.v7.app.ActionBarActivityDelegateICS.onCreate(ActionBarActivityDelegateICS.java:58)
        at android.support.v7.app.ActionBarActivity.onCreate(ActionBarActivity.java:98)
        at com.example.SampleMetrRost.CentralActivity.onCreate(CentralActivity.java:12)
        at android.app.Activity.performCreate(Activity.java:4636)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1051)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1924)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1985)
        at android.app.ActivityThread.access$600(ActivityThread.java:127)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1151)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:137)
        at android.app.ActivityThread.main(ActivityThread.java:4476)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:511)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:816)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:583)
        at dalvik.system.NativeStart.main(Native Method)

Help me, please. Spent all day today.

Using Gradle

If you are using Gradle, you can add it as a compile dependency.

Instructions

1. Make sure you have the Android Support Repository SDK package installed. Android Studio automatically recognizes this repository during the build process (not sure about plain IntelliJ).

   

2. Add the dependency to {project}/build.gradle

   dependencies {
       compile 'com.android.support:appcompat-v7:+'
   }
   

3. Click the Sync Project with Gradle Files button.

EDIT: Looks like these same instructions are on the documentation under Adding libraries with resources -> Using Android Studio.

Without Gradle (Click here for the Gradle solution)

1. Create a support library project.

2. Import your library project to Intellij from Eclipse project (this step only applies if you created your library in Eclipse).

3. Right click on module and choose Open Module Settings.

4. Setup libraries of v7 jar file

5. Setup library module of v7

6. Setup app module dependency of v7 library module

Using Maven

First of all you should install android libraries to your local maven repository using [Maven Android SDK Deployer][1]

Then you can add dependency to your pom like this:

    <dependency>
        <groupId>android.support</groupId>
        <artifactId>compatibility-v7-appcompat</artifactId>
        <version>${compatibility.version}</version>
        <type>apklib</type>
    </dependency>

    <dependency>
        <groupId>android.support</groupId>
        <artifactId>compatibility-v7-appcompat</artifactId>
        <version>${compatibility.version}</version>
        <type>jar</type>
    </dependency>

[1]: https://github.com/mosabua/maven-android-sdk-deployer "Maven Android SDK Deployer"

This is my solution:

1. Copy&paste $ANDROID_SDK/extras/android/support/v7/appcompat to your project ROOT

2. Open "Project Structure" on Intellij, click "Modules" on "Project Settings", then click "appcompat"->"android', make sure "Library Module" checkbox is checked.

3. click "YOUR-PROJECT_NAME" under "appcompat", remove "android-support-v4" and "android-support-v7-compat"; ensure the checkbox before "appcompat" is checked. And, click "ok" to close "Project Structure" dialogue.

4. back to the mainwindow, click "appcompat"->"libs" on the top-left project area. Right-click on "android-support-v4", select menuitem "Add as library", change "Add to Module" to "Your-project". Same with "android-support-v7-compat".

After doing above, intellij should be able to correctly find the android-support-XXXX modules.

Good Luck!

Another yet simple solution is to paste these line into the build.gradle file

dependencies {
    
    //import of gridlayout
    compile 'com.android.support:gridlayout-v7:19.0.0'
    compile 'com.android.support:appcompat-v7:+'
}

Another solution for maven (and a better solution, for me at least) is to use the maven repository included in the local android SDK. To do this, just add a new repository into your pom pointing at the local android SDK:

<repository>
    <id>android-support</id>
    <url>file://${env.ANDROID_HOME}/extras/android/m2repository</url>
</repository>

After adding this repository you can add the standard Google dependency like this:

<dependency>
    <groupId>com.android.support</groupId>
    <artifactId>support-v13</artifactId>
    <version>${support-v13.version}</version>
</dependency>

<dependency>
    <groupId>com.android.support</groupId>
    <artifactId>appcompat-v7</artifactId>
    <version>${appcompat-v7.version}</version>
    <type>aar</type>
</dependency>

As a Library Project

You should add the resources in a library project as per http://developer.android.com/tools/support-library/setup.html

> Section > Adding libraries with resources

You then add the android-support-v7-appcompat library in your workspace and then add it as a reference to your app project.

Defining all the resources in your app project will also work (but there are a lot of definitions to add and you have missed some of them), and it is not the recommended approach.

This is my solution, it is very similar to the previous one:

<dependency>
		<groupId>com.google.android</groupId>
		<artifactId>support-v7</artifactId>
		<scope>system</scope>
		<systemPath>${android.home}/support/v7/appcompat/libs/android-support-v7-appcompat.jar</systemPath>
		<version>19.0.1</version>
</dependency>

Where {android.home} is the root directory of the Android SDK and it uses systemPath instead of repository.

As an update to Austyn Mahoney's answer, configuration 'compile' is obsolete and has been replaced with 'implementation' and 'api'.

It will be removed at the end of 2018. For more information see here.