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/**
 * Return the Fragment associated with a specified position.
 */
public abstract Fragment getItem(int position);

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private static String makeFragmentName(int viewId, int index) {
    return "android:switcher:" + viewId + ":" + index;
}

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@Override
public Object instantiateItem(View container, int position) {
  if (mCurTransaction == null) {
    mCurTransaction = mFragmentManager.beginTransaction();
  }

  // Do we already have this fragment?
  String name = makeFragmentName(container.getId(), position);
  Fragment fragment = mFragmentManager.findFragmentByTag(name);
  if (fragment != null) {

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// Simple stack implementation, works as expected every time
private Stack<NavItem> navigationStack = new Stack<>();

// ...

// Navigating to a new screen/item in the stack 
navigationStack.push(new NavItem(viewToBeAdded.getClass(), args));

// ...

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public void useCaseExample() {
  storageAbstraction.loadSomeData();
  filterData();
  doSomeComputation();
  uiAbstraction.presentDataToUser();
}

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public class Activity1$$IntentBuilder<NEXT> {

    protected Map<String, String> params = new HashMap<>();

    public Activity1FirstParam createActivity1() {
        return new Activity1FirstParam();
    }

    protected class Activity1FirstParam {
        public AfterExtra1 extra1(String extra1) {

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buildscript {
    repositories {
        mavenCentral()
        maven {
            url "https://plugins.gradle.org/m2/"
        }
        maven {
            url 'http://dl.bintray.com/jetbrains/intellij-plugin-service'
        }
    }

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<idea-plugin>
  <id>com.example.plugin</id>
  <name>ExamplePlugin</name>
  <vendor email="test@example.com" url="http://www.example.com">Example</vendor>

  <description><![CDATA[
      Some description of the plugin, what it does, so people can have a better idea if they want to use it
    ]]></description>

  <change-notes><![CDATA[

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package com.example.plugin;

import com.intellij.openapi.components.ProjectComponent;
import org.jetbrains.annotations.NotNull;

public class TestProjectComponent implements ProjectComponent {

    private static final String TEST_PROJECT_COMPONENT_NAME = "TestProjectComponent";

    @Override

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...

intellij {
    version '2017.1'
    pluginName 'YOUR PLUGIN NAME HERE'
    plugins 'android'
    updateSinceUntilBuild false
    alternativeIdePath "/Applications/Android Studio 3.0 Preview.app/Contents/"
}